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CCMP Capital Investors III, L.P.

Disclosed activity across 3 companies

Tapewire entity
113401
SEC CIK
0001569775

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Reported relationships

Latest disclosed role at each company.

No relationships currently tracked through insider filings.

Disclosed balances

About these balances

Latest available filing per company, not a reconstructed current portfolio. Matching sequences show the last reported balance with all source rows expandable; grouping alone does not establish account ownership. Do not add unresolved positions together. Filings may omit unchanged positions, and amendments may correct only part of an older disclosure. Jointly reported shares are not necessarily this owner's personal holdings.

No balances currently tracked through insider filings.

Past disclosures · reporting ended (3)

No longer tracked through insider filings. These historical balances do not imply present ownership or a zero position.

Section 16 reporting ended · disclosed 2023-03-07. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy CCMP Capital Investors III, L.P.0 Reported balance After 2023-03-07 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2023-03-07 · Sale · Disposed 5,446,572 · Balance 0

F1: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Common StockSEC Table I · non-derivativeIndirectBy CCMP Capital Investors III (Employee), L.P.0 Reported balance After 2023-03-07 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 2 · 2023-03-07 · Sale · Disposed 552,064 · Balance 0

F1: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Common StockSEC Table I · non-derivativeIndirectCCMP Capital Investors III (AV-7), L.P.0 Reported balance After 2023-03-07 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 3 · 2023-03-07 · Sale · Disposed 1,660,544 · Balance 0

F1: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Common StockSEC Table I · non-derivativeIndirectCCMP Capital Investors III (AV-8), L.P.0 Reported balance After 2023-03-07 transaction · row 4 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 4 · 2023-03-07 · Sale · Disposed 93,947 · Balance 0

F1: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Common StockSEC Table I · non-derivativeIndirectCCMP Capital Investors III (AV-9), L.P.0 Reported balance After 2023-03-07 transaction · row 5 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 5 · 2023-03-07 · Sale · Disposed 1,878,125 · Balance 0

F1: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Common StockSEC Table I · non-derivativeIndirectCCMP Capital Investors III (AV-10), L.P.0 Reported balance After 2023-03-07 transaction · row 6 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 6 · 2023-03-07 · Sale · Disposed 123,059 · Balance 0

F1: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Common StockSEC Table I · non-derivativeIndirectQuartz Co-Invest L.P.0 Reported balance After 2023-03-07 transaction · row 7 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 7 · 2023-03-07 · Sale · Disposed 1,736,133 · Balance 0

F2: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of Quartz Co-Invest, L.P. ("Quartz" and, together with the CCMP Capital Funds, the "CCMP Investors").

F3: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Filing footnotes · ownership attribution and instrument terms

F1: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of Quartz Co-Invest, L.P. ("Quartz" and, together with the CCMP Capital Funds, the "CCMP Investors").

F3: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Section 16 reporting ended · disclosed 2023-05-12. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy CCMP Capital Investors III, L.P.13,557,066 Last balance in matching sequence After 2023-05-12 transaction · row 3 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 1 · 2023-05-10 · Sale · Disposed 12,789,809 · Balance 15,475,537

F1: Shares sold by the reporting person were part of an underwritten secondary offering (the "Offering") of 21,000,000 shares of the Issuer's common stock which closed on May 10, 2023.

F3: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

Row 3 · 2023-05-12 · Sale · Disposed 1,918,471 · Balance 13,557,066

F2: Shares sold by the reporting person were part of the underwriter's complete exercise of the option to purchase an additional 3,150,000 shares of the Issuer's common stock in connection with the Offering.

F3: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

Common StockSEC Table I · non-derivativeIndirectBy CCMP Capital Investors III (Employee), L.P.836,843 Last balance in matching sequence After 2023-05-12 transaction · row 4 Source-order balances reconcile. Account continuity and personal attribution are not independently verified.
2 source rows

Row 2 · 2023-05-10 · Sale · Disposed 789,484 · Balance 955,266

F1: Shares sold by the reporting person were part of an underwritten secondary offering (the "Offering") of 21,000,000 shares of the Issuer's common stock which closed on May 10, 2023.

F3: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

Row 4 · 2023-05-12 · Sale · Disposed 118,423 · Balance 836,843

F2: Shares sold by the reporting person were part of the underwriter's complete exercise of the option to purchase an additional 3,150,000 shares of the Issuer's common stock in connection with the Offering.

F3: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

Filing footnotes · ownership attribution and instrument terms

F1: Shares sold by the reporting person were part of an underwritten secondary offering (the "Offering") of 21,000,000 shares of the Issuer's common stock which closed on May 10, 2023.

F2: Shares sold by the reporting person were part of the underwriter's complete exercise of the option to purchase an additional 3,150,000 shares of the Issuer's common stock in connection with the Offering.

F3: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

Section 16 reporting ended · disclosed 2023-05-17. Current position is not established by this disclosure.

Security / awardOwnership accountDisclosed shares / unitsDisclosure context
Common StockSEC Table I · non-derivativeIndirectBy CCMP Capital Investors III, L.P.0 Reported balance After 2023-05-15 transaction · row 1 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 1 · 2023-05-15 · Sale · Disposed 16,263,437 · Balance 0

F1: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Common StockSEC Table I · non-derivativeIndirectBy CCMP Capital Investors III (Employee), L.P.0 Reported balance After 2023-05-15 transaction · row 2 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 2 · 2023-05-15 · Sale · Disposed 975,677 · Balance 0

F1: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Common StockSEC Table I · non-derivativeIndirectBy CCMP Co-Invest III A, L.P.0 Reported balance After 2023-05-15 transaction · row 3 Joint disclosure: continuity of the reported position is unresolved; see ownership footnotes.
1 source row

Row 3 · 2023-05-15 · Sale · Disposed 5,215,886 · Balance 0

F1: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Filing footnotes · ownership attribution and instrument terms

F1: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Transaction history

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Purchases/sales include open-market and private transactions. Plan disclosure applies to the filing; individual rows may differ. “Not disclosed” is not “unplanned.”

The cutoff filters transaction history only. Company summaries and owner relationships show the latest available disclosures. Parser corrections can improve historical records.

Transaction dateCompanyActivity / securityShares / unitsReported priceReported valueDetails
May 15, 2023 Filed May 17, 2023 16:05 UTC Hillman Solutions Corp. HLMN · Entity 4721 SaleCommon Stock 5,215,886 $7.69 $40,103,904.28
Disclosure

SEC source: 0000899243-23-013182 · doc4.xml · nonDerivative · entry 3

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Co-Invest III A, L.P. · CIK 0001615462 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Co-Invest III A GP, LLC · CIK 0001718021 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By CCMP Co-Invest III A, L.P.

Disclosed balance after: 0

F1 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Read SEC document
May 15, 2023 Filed May 17, 2023 16:05 UTC Hillman Solutions Corp. HLMN · Entity 4721 SaleCommon Stock 975,677 $7.69 $7,501,785.32
Disclosure

SEC source: 0000899243-23-013182 · doc4.xml · nonDerivative · entry 2

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Co-Invest III A, L.P. · CIK 0001615462 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Co-Invest III A GP, LLC · CIK 0001718021 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 0

F1 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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May 15, 2023 Filed May 17, 2023 16:05 UTC Hillman Solutions Corp. HLMN · Entity 4721 SaleCommon Stock 16,263,437 $7.69 $125,046,314.41
Disclosure

SEC source: 0000899243-23-013182 · doc4.xml · nonDerivative · entry 1

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Co-Invest III A, L.P. · CIK 0001615462 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Co-Invest III A GP, LLC · CIK 0001718021 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 0

F1 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Read SEC document
May 12, 2023 Filed May 12, 2023 16:01 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 118,423 $11.75 $1,391,470.25
Disclosure

SEC source: 0001104659-23-059702 · tm2315516-1_4seq1.xml · nonDerivative · entry 4

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 836,843

F2 · kind: Shares sold by the reporting person were part of the underwriter's complete exercise of the option to purchase an additional 3,150,000 shares of the Issuer's common stock in connection with the Offering.

F3 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

Read SEC document
May 12, 2023 Filed May 12, 2023 16:01 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 1,918,471 $11.75 $22,542,034.25
Disclosure

SEC source: 0001104659-23-059702 · tm2315516-1_4seq1.xml · nonDerivative · entry 3

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 13,557,066

F2 · kind: Shares sold by the reporting person were part of the underwriter's complete exercise of the option to purchase an additional 3,150,000 shares of the Issuer's common stock in connection with the Offering.

F3 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

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May 10, 2023 Filed May 12, 2023 16:01 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 789,484 $11.75 $9,276,437.00
Disclosure

SEC source: 0001104659-23-059702 · tm2315516-1_4seq1.xml · nonDerivative · entry 2

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 955,266

F1 · kind: Shares sold by the reporting person were part of an underwritten secondary offering (the "Offering") of 21,000,000 shares of the Issuer's common stock which closed on May 10, 2023.

F3 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

Read SEC document
May 10, 2023 Filed May 12, 2023 16:01 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 12,789,809 $11.75 $150,280,255.75
Disclosure

SEC source: 0001104659-23-059702 · tm2315516-1_4seq1.xml · nonDerivative · entry 1

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 15,475,537

F1 · kind: Shares sold by the reporting person were part of an underwritten secondary offering (the "Offering") of 21,000,000 shares of the Issuer's common stock which closed on May 10, 2023.

F3 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

Read SEC document
March 07, 2023 Filed Mar 7, 2023 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 1,736,133 $9.95 $17,274,523.35
Disclosure

SEC source: 0000899243-23-007345 · doc4.xml · nonDerivative · entry 7

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Quartz Co-Invest L.P.

Disclosed balance after: 0

F2 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of Quartz Co-Invest, L.P. ("Quartz" and, together with the CCMP Capital Funds, the "CCMP Investors").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Read SEC document
March 07, 2023 Filed Mar 7, 2023 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 123,059 $9.95 $1,224,437.05
Disclosure

SEC source: 0000899243-23-007345 · doc4.xml · nonDerivative · entry 6

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-10), L.P.

Disclosed balance after: 0

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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March 07, 2023 Filed Mar 7, 2023 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 1,878,125 $9.95 $18,687,343.75
Disclosure

SEC source: 0000899243-23-007345 · doc4.xml · nonDerivative · entry 5

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-9), L.P.

Disclosed balance after: 0

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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March 07, 2023 Filed Mar 7, 2023 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 93,947 $9.95 $934,772.65
Disclosure

SEC source: 0000899243-23-007345 · doc4.xml · nonDerivative · entry 4

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-8), L.P.

Disclosed balance after: 0

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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March 07, 2023 Filed Mar 7, 2023 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 1,660,544 $9.95 $16,522,412.80
Disclosure

SEC source: 0000899243-23-007345 · doc4.xml · nonDerivative · entry 3

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-7), L.P.

Disclosed balance after: 0

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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March 07, 2023 Filed Mar 7, 2023 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 552,064 $9.95 $5,493,036.80
Disclosure

SEC source: 0000899243-23-007345 · doc4.xml · nonDerivative · entry 2

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 0

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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March 07, 2023 Filed Mar 7, 2023 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 5,446,572 $9.95 $54,193,391.40
Disclosure

SEC source: 0000899243-23-007345 · doc4.xml · nonDerivative · entry 1

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 0

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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March 06, 2023 Filed Mar 7, 2023 16:01 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 90,227 $11.52 $1,039,415.04
Disclosure

SEC source: 0001104659-23-029527 · tm238661-1_4seq1.xml · nonDerivative · entry 4

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 1,744,750

F2 · kind: Shares sold by the reporting person were part of the underwriter's complete exercise of the option to purchase an additional 2,400,000 shares of the Issuer's common stock in connection with the Offering.

F3 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

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March 06, 2023 Filed Mar 7, 2023 16:01 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 1,461,693 $11.52 $16,838,703.36
Disclosure

SEC source: 0001104659-23-029527 · tm238661-1_4seq1.xml · nonDerivative · entry 3

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 28,265,346

F2 · kind: Shares sold by the reporting person were part of the underwriter's complete exercise of the option to purchase an additional 2,400,000 shares of the Issuer's common stock in connection with the Offering.

F3 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

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March 03, 2023 Filed Mar 7, 2023 16:05 UTC Hillman Solutions Corp. HLMN · Entity 4721 SaleCommon Stock 6,678,097 $8.00 $53,424,776.00
Disclosure

SEC source: 0000899243-23-007339 · doc4.xml · nonDerivative · entry 3

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Co-Invest III A, L.P. · CIK 0001615462 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Co-Invest III A GP, LLC · CIK 0001718021 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Co-Invest III A, L.P.

Disclosed balance after: 5,215,886

F1 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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March 03, 2023 Filed Mar 7, 2023 16:05 UTC Hillman Solutions Corp. HLMN · Entity 4721 SaleCommon Stock 1,249,198 $8.00 $9,993,584.00
Disclosure

SEC source: 0000899243-23-007339 · doc4.xml · nonDerivative · entry 2

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Co-Invest III A, L.P. · CIK 0001615462 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Co-Invest III A GP, LLC · CIK 0001718021 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 975,677

F1 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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March 03, 2023 Filed Mar 7, 2023 16:05 UTC Hillman Solutions Corp. HLMN · Entity 4721 SaleCommon Stock 20,822,705 $8.00 $166,581,640.00
Disclosure

SEC source: 0000899243-23-007339 · doc4.xml · nonDerivative · entry 1

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Co-Invest III A, L.P. · CIK 0001615462 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Co-Invest III A GP, LLC · CIK 0001718021 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 16,263,437

F1 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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March 03, 2023 Filed Mar 7, 2023 16:01 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 601,512 $11.52 $6,929,418.24
Disclosure

SEC source: 0001104659-23-029527 · tm238661-1_4seq1.xml · nonDerivative · entry 2

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 1,834,977

F1 · kind: Shares sold by the reporting person were part of an underwritten secondary offering (the "Offering") of 16,000,000 shares of the Issuer's common stock which closed on March 3, 2023.

F3 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

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March 03, 2023 Filed Mar 7, 2023 16:01 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 9,744,617 $11.52 $112,257,987.84
Disclosure

SEC source: 0001104659-23-029527 · tm238661-1_4seq1.xml · nonDerivative · entry 1

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 29,727,039

F1 · kind: Shares sold by the reporting person were part of an underwritten secondary offering (the "Offering") of 16,000,000 shares of the Issuer's common stock which closed on March 3, 2023.

F3 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F4 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F5 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and the other stockholders named therein pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them. By virtue of the Stockholders' Agreement, the CCMP Investors and MSD may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F6 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD except as reported as beneficially owned by the reporting persons in this Form 4.

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November 17, 2022 Filed Nov 18, 2022 16:23 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 3,040,758 $7.88 $23,957,524.13
Disclosure

SEC source: 0000899243-22-036369 · doc4.xml · nonDerivative · entry 7

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Quartz Co-Invest L.P.

Disclosed balance after: 1,736,133

F2 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of Quartz Co-Invest, L.P. ("Quartz" and, together with the CCMP Capital Funds, the "CCMP Investors").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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November 17, 2022 Filed Nov 18, 2022 16:23 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 215,530 $7.88 $1,698,117.76
Disclosure

SEC source: 0000899243-22-036369 · doc4.xml · nonDerivative · entry 6

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-10), L.P.

Disclosed balance after: 123,059

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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November 17, 2022 Filed Nov 18, 2022 16:23 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 3,289,453 $7.88 $25,916,942.30
Disclosure

SEC source: 0000899243-22-036369 · doc4.xml · nonDerivative · entry 5

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-9), L.P.

Disclosed balance after: 1,878,125

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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November 17, 2022 Filed Nov 18, 2022 16:23 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 164,543 $7.88 $1,296,401.39
Disclosure

SEC source: 0000899243-22-036369 · doc4.xml · nonDerivative · entry 4

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-8), L.P.

Disclosed balance after: 93,947

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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November 17, 2022 Filed Nov 18, 2022 16:23 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 2,908,370 $7.88 $22,914,465.56
Disclosure

SEC source: 0000899243-22-036369 · doc4.xml · nonDerivative · entry 3

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-7), L.P.

Disclosed balance after: 1,660,544

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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November 17, 2022 Filed Nov 18, 2022 16:23 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 966,918 $7.88 $7,618,153.54
Disclosure

SEC source: 0000899243-22-036369 · doc4.xml · nonDerivative · entry 2

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 552,064

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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November 17, 2022 Filed Nov 18, 2022 16:23 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 9,539,428 $7.88 $75,159,245.33
Disclosure

SEC source: 0000899243-22-036369 · doc4.xml · nonDerivative · entry 1

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 5,446,572

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

Read SEC document
November 15, 2022 Filed Nov 17, 2022 16:05 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 300,756 $9.86 $2,965,454.16
Disclosure

SEC source: 0001104659-22-119887 · tm2230830-1_4seq1.xml · nonDerivative · entry 2

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 2,436,489

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F3 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and Alberta Investment Management Corporation ("AIMCo") pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them, and AIMCo has also agreed to certain restrictions on the transfer of its shares of Common Stock. By virtue of the Stockholders' Agreement, the CCMP Investors, MSD and AIMCo may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F4 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD and AIMCo except as reported as beneficially owned by the reporting persons in this Form 4.

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November 15, 2022 Filed Nov 17, 2022 16:05 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 4,872,308 $9.86 $48,040,956.88
Disclosure

SEC source: 0001104659-22-119887 · tm2230830-1_4seq1.xml · nonDerivative · entry 1

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 39,471,656

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F3 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and Alberta Investment Management Corporation ("AIMCo") pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them, and AIMCo has also agreed to certain restrictions on the transfer of its shares of Common Stock. By virtue of the Stockholders' Agreement, the CCMP Investors, MSD and AIMCo may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F4 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD and AIMCo except as reported as beneficially owned by the reporting persons in this Form 4.

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November 07, 2022 Filed Nov 9, 2022 16:12 UTC Hillman Solutions Corp. HLMN · Entity 4721 SaleCommon Stock 1,951,166 $7.13 $13,918,837.78
Disclosure

SEC source: 0001104659-22-116481 · tm2230155-2_4seq1.xml · nonDerivative · entry 3

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Co-Invest III A, L.P. · CIK 0001615462 · 10% owner

CCMP Co-Invest III A GP, LLC · CIK 0001718021 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Co-Invest III A, L.P.

Disclosed balance after: 11,893,983

F1 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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November 07, 2022 Filed Nov 9, 2022 16:12 UTC Hillman Solutions Corp. HLMN · Entity 4721 SaleCommon Stock 364,983 $7.13 $2,603,642.73
Disclosure

SEC source: 0001104659-22-116481 · tm2230155-2_4seq1.xml · nonDerivative · entry 2

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Co-Invest III A, L.P. · CIK 0001615462 · 10% owner

CCMP Co-Invest III A GP, LLC · CIK 0001718021 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP CAPITAL INVESTORS III (EMPLOYEE), L.P.

Disclosed balance after: 2,224,875

F1 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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November 07, 2022 Filed Nov 9, 2022 16:12 UTC Hillman Solutions Corp. HLMN · Entity 4721 SaleCommon Stock 6,083,851 $7.13 $43,399,759.49
Disclosure

SEC source: 0001104659-22-116481 · tm2230155-2_4seq1.xml · nonDerivative · entry 1

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Co-Invest III A, L.P. · CIK 0001615462 · 10% owner

CCMP Co-Invest III A GP, LLC · CIK 0001718021 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP CAPITAL INVESTORS III, L.P.

Disclosed balance after: 37,086,142

F1 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of CCMP Co-Invest III A, L.P. ("CCMP Co-Invest"). CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors") and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors and CCMP Co-Invest, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F2 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hillman Solutions Corp. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 10, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 294,633 $8.36 $2,462,041.74
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 14

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Quartz Co-Invest L.P.

Disclosed balance after: 4,776,891

F2 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of Quartz Co-Invest, L.P. ("Quartz" and, together with the CCMP Capital Funds, the "CCMP Investors").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 10, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 20,884 $8.36 $174,512.97
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 13

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-10), L.P.

Disclosed balance after: 338,589

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 10, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 318,730 $8.36 $2,663,403.50
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 12

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-9), L.P.

Disclosed balance after: 5,167,578

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 10, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 15,943 $8.36 $133,224.49
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 11

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-8), L.P.

Disclosed balance after: 258,490

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 10, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 281,805 $8.36 $2,354,847.12
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 10

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-7), L.P.

Disclosed balance after: 4,568,914

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 10, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 93,689 $8.36 $782,893.39
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 9

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 1,518,982

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 10, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 924,316 $8.36 $7,723,861.79
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 8

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 14,986,000

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 08, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 1,964,217 $8.36 $16,413,586.52
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 7

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · Quartz Co-Invest L.P.

Disclosed balance after: 5,071,524

F2 · ownership.nature: CCMP Co-Invest III A GP, LLC ("CCMP Co-Invest GP") is the general partner of Quartz Co-Invest, L.P. ("Quartz" and, together with the CCMP Capital Funds, the "CCMP Investors").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 08, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 139,226 $8.36 $1,163,414.22
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 6

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-10), L.P.

Disclosed balance after: 359,473

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 08, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 2,124,864 $8.36 $17,756,001.04
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 5

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-9), L.P.

Disclosed balance after: 5,486,308

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 08, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 106,288 $8.36 $888,174.41
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 4

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-8), L.P.

Disclosed balance after: 274,433

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 08, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 1,878,698 $8.36 $15,698,964.10
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 3

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · CCMP Capital Investors III (AV-7), L.P.

Disclosed balance after: 4,850,719

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 08, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 624,593 $8.36 $5,219,286.49
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 2

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 1,612,671

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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August 08, 2022 Filed Aug 10, 2022 16:15 UTC Ecovyst Inc. ECVT · Entity 4897 SaleCommon Stock 6,162,114 $8.36 $51,492,473.22
Disclosure

SEC source: 0000899243-22-028256 · doc4.xml · nonDerivative · entry 1

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Investors III (AV-7), L.P. · CIK 0001718031 · 10% owner

CCMP Capital Investors III (AV-8), L.P. · CIK 0001718033 · 10% owner

CCMP Capital Investors III (AV-9), L.P. · CIK 0001718030 · 10% owner

CCMP Capital Investors III (AV-10), L.P. · CIK 0001718032 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 15,910,316

F1 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), CCMP Capital Investors III (Employee), L.P. ("CCMP Employee"), CCMP Capital Investors III (AV-7), L.P. ("CCMP AV-7"), CCMP Capital Investors III (AV-8), L.P. ("CCMP AV-8"), CCMP Capital Investors III (AV-9), L.P. ("CCMP AV-9") and CCMP Capital Investors III (AV-10), L.P. ("CCMP AV-10" and, together with CCMP Capital Investors, CCMP Employee, CCMP AV-7, CCMP AV-8 and CCMP AV-9, the "CCMP Capital Funds"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP and CCMP Co-Invest GP are each wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Ecovyst Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Co-Invest GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Ecovyst Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

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May 17, 2022 Filed May 18, 2022 17:13 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 125,753 $13.88 $1,745,929.50
Disclosure

SEC source: 0001104659-22-062505 · tm2215994-1_4seq1.xml · nonDerivative · entry 2

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 2,737,245

F1 · kind: Shares sold by the reporting person were part of the underwriters' partial exercise of the option to purchase an additional 3,345,000 shares of the Issuer's common stock in connection with the underwritten secondary offering previously disclosed on the reporting person's Form 4 filed May 6, 2022.

F2 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F4 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and Alberta Investment Management Corporation ("AIMCo") pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them, and AIMCo has also agreed to certain restrictions on the transfer of its shares of Common Stock. By virtue of the Stockholders' Agreement, the CCMP Investors, MSD and AIMCo may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F5 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD and AIMCo except as reported as beneficially owned by the reporting persons in this Form 4.

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May 17, 2022 Filed May 18, 2022 17:13 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 2,037,234 $13.88 $28,284,549.41
Disclosure

SEC source: 0001104659-22-062505 · tm2215994-1_4seq1.xml · nonDerivative · entry 1

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III, L.P.

Disclosed balance after: 44,343,964

F1 · kind: Shares sold by the reporting person were part of the underwriters' partial exercise of the option to purchase an additional 3,345,000 shares of the Issuer's common stock in connection with the underwritten secondary offering previously disclosed on the reporting person's Form 4 filed May 6, 2022.

F2 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F4 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and Alberta Investment Management Corporation ("AIMCo") pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them, and AIMCo has also agreed to certain restrictions on the transfer of its shares of Common Stock. By virtue of the Stockholders' Agreement, the CCMP Investors, MSD and AIMCo may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F5 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD and AIMCo except as reported as beneficially owned by the reporting persons in this Form 4.

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May 05, 2022 Filed May 6, 2022 16:14 UTC Hayward Holdings, Inc. HAYW · Entity 768 SaleCommon Stock 902,267 $13.88 $12,526,894.57
Disclosure

SEC source: 0001104659-22-056994 · tm2214775-1_4seq1.xml · nonDerivative · entry 2

CCMP Capital, LP · CIK 0001372939 · 10% owner

CCMP Capital GP, LLC · CIK 0001674350 · 10% owner

CCMP Capital Investors III, L.P. · CIK 0001569775 · 10% owner

CCMP Capital Investors III (Employee), L.P. · CIK 0001581003 · 10% owner

CCMP Capital Associates III, L.P. · CIK 0001718034 · 10% owner

CCMP Capital Associates III GP, LLC · CIK 0001718029 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · By CCMP Capital Investors III (Employee), L.P.

Disclosed balance after: 2,862,998

F1 · kind: Shares sold by the reporting person were part of an underwritten secondary offering of 24,000,000 shares of the Issuer's common stock which closed on May 5, 2022.

F2 · ownership.nature: CCMP Capital Associates III, L.P. ("CCMP Capital Associates") is the general partner of each of CCMP Capital Investors III, L.P. ("CCMP Capital Investors"), and CCMP Capital Investors III (Employee), L.P. ("CCMP Employee" and together with CCMP Capital Investors, the "CCMP Investors"). The general partner of CCMP Capital Associates is CCMP Capital Associates III GP, LLC ("CCMP Capital Associates GP").

F3 · ownership.nature: CCMP Capital Associates GP is wholly owned by CCMP Capital, LP. The general partner of CCMP Capital, LP is CCMP Capital GP, LLC. CCMP Capital GP, LLC ultimately exercises voting and dispositive power over the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. As a result, each of CCMP Capital Associates, CCMP Capital Associates GP, CCMP Capital, LP and CCMP Capital GP, LLC may be deemed to share beneficial ownership with respect to certain of the shares of common stock of Hayward Holdings, Inc. held by the CCMP Investors. Each of the reporting persons disclaims beneficial ownership of these securities except to the extent of its pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership of the reported securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purpose.

F4 · ownership.nature: In connection with the consummation of the initial public offering of the Issuer's common stock, par value $0.001 per share ("Common Stock"), the CCMP Investors entered into an Amended and Restated Stockholders' Agreement ("Stockholders' Agreement") with the Issuer and certain affiliates of MSD Partners, L.P. ("MSD") and Alberta Investment Management Corporation ("AIMCo") pursuant to which the CCMP Investors and MSD have agreed to coordinate with respect to the timing and manner of disposition of shares of the Common Stock held by them, and AIMCo has also agreed to certain restrictions on the transfer of its shares of Common Stock. By virtue of the Stockholders' Agreement, the CCMP Investors, MSD and AIMCo may be deemed to be members of a group for the purposes of Section 13(d) of the Securities Exchange Act of 1934 (the "Act").

F5 · ownership.nature: In addition, each reporting person may be deemed to be a member of a group for the purposes of Section 13(d) of the Act. Each reporting person disclaims any pecuniary interest in any shares of Common Stock held by the group with MSD and AIMCo except as reported as beneficially owned by the reporting persons in this Form 4.

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Value uses the disclosed total when available, otherwise shares × reported transaction price. It is not an estimate of exercise cash cost or investment performance.