1597257 Ontario Inc.

SEC source: 0001193125-26-303534 · ownership.xml · nonDerivative · entry 2

ONEX CORP · CIK 0000937226 · 10% owner

SCHWARTZ GERALD W · CIK 0001275599 · 10% owner

Onex Partners GP Inc. · CIK 0001544360 · 10% owner

Onex Partners III GP LP · CIK 0001506665 · 10% owner

ONEX PARTNERS III LP · CIK 0001435855 · 10% owner

ONEX PARTNERS III PV LP · CIK 0001446974 · 10% owner

Onex Partners III Select LP · CIK 0001470880 · 10% owner

New PCo II Investments, Ltd. · CIK 0001593408 · 10% owner

Onex Advisor Subco III LLC · CIK 0001695911 · 10% owner

1597257 Ontario Inc. · CIK 0001517831 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F1 · kind: Pursuant to and in connection with the transactions contemplated by that certain Agreement and Plan of Merger, dated May 9, 2026, entered into by Emerald Holding, Inc., a Delaware corporation (the "Company" or "Emerald"), Emma Buyer, LLC, a Delaware limited liability company ("Parent"), and Emma Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of Parent ("Merger Sub"), on July 14, 2026, Merger Sub merged with and into Emerald, with Emerald surviving the merger and becoming a wholly-owned subsidiary of Parent (such merger, the "Transaction"). Parent and Merger Sub are newly formed holding companies owned by funds managed by affiliates of Apollo Global Management, Inc. ("Apollo").

F2 · kind: (Continued from footnote 1) Each share of common stock, par value $0.01 per share, of Emerald (each, a share of "Emerald Common Stock") issued and outstanding immediately prior to the effective time of the Transaction (the "Effective Time"), other than shares of Emerald Common Stock (i) held by Emerald as treasury stock or owned by Parent or Merger Sub (which were cancelled) or any wholly owned subsidiary of Emerald and Parent (other than Merger Sub), or (ii) as to which appraisal rights were properly exercised in accordance with Delaware law (and not validly withdrawn), was cancelled and converted into the right to receive $5.03 per share of Emerald Common Stock in cash (the "Merger Consideration"), without interest.

F6 · shares: Includes: 470,583 shares of Common Stock held of record by Onex Advisor Subco III LLC.

F1 · price: Pursuant to and in connection with the transactions contemplated by that certain Agreement and Plan of Merger, dated May 9, 2026, entered into by Emerald Holding, Inc., a Delaware corporation (the "Company" or "Emerald"), Emma Buyer, LLC, a Delaware limited liability company ("Parent"), and Emma Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of Parent ("Merger Sub"), on July 14, 2026, Merger Sub merged with and into Emerald, with Emerald surviving the merger and becoming a wholly-owned subsidiary of Parent (such merger, the "Transaction"). Parent and Merger Sub are newly formed holding companies owned by funds managed by affiliates of Apollo Global Management, Inc. ("Apollo").

F2 · price: (Continued from footnote 1) Each share of common stock, par value $0.01 per share, of Emerald (each, a share of "Emerald Common Stock") issued and outstanding immediately prior to the effective time of the Transaction (the "Effective Time"), other than shares of Emerald Common Stock (i) held by Emerald as treasury stock or owned by Parent or Merger Sub (which were cancelled) or any wholly owned subsidiary of Emerald and Parent (other than Merger Sub), or (ii) as to which appraisal rights were properly exercised in accordance with Delaware law (and not validly withdrawn), was cancelled and converted into the right to receive $5.03 per share of Emerald Common Stock in cash (the "Merger Consideration"), without interest.

F1 · acquired: Pursuant to and in connection with the transactions contemplated by that certain Agreement and Plan of Merger, dated May 9, 2026, entered into by Emerald Holding, Inc., a Delaware corporation (the "Company" or "Emerald"), Emma Buyer, LLC, a Delaware limited liability company ("Parent"), and Emma Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of Parent ("Merger Sub"), on July 14, 2026, Merger Sub merged with and into Emerald, with Emerald surviving the merger and becoming a wholly-owned subsidiary of Parent (such merger, the "Transaction"). Parent and Merger Sub are newly formed holding companies owned by funds managed by affiliates of Apollo Global Management, Inc. ("Apollo").

F2 · acquired: (Continued from footnote 1) Each share of common stock, par value $0.01 per share, of Emerald (each, a share of "Emerald Common Stock") issued and outstanding immediately prior to the effective time of the Transaction (the "Effective Time"), other than shares of Emerald Common Stock (i) held by Emerald as treasury stock or owned by Parent or Merger Sub (which were cancelled) or any wholly owned subsidiary of Emerald and Parent (other than Merger Sub), or (ii) as to which appraisal rights were properly exercised in accordance with Delaware law (and not validly withdrawn), was cancelled and converted into the right to receive $5.03 per share of Emerald Common Stock in cash (the "Merger Consideration"), without interest.

F4 · ownership.nature: Onex Corporation, a corporation whose subordinated voting shares are traded on the Toronto Stock Exchange, may be deemed to beneficially own the Common Stock held of record by (a) Onex Partners III LP, Onex Partners III Select LP, and Onex Partners III PV LP through Onex Corporation's direct ownership and control of Onex Partners GP Inc., the general partner of Onex Partners III GP LP, the general partner of each of Onex Partners III LP, Onex Partners III Select LP, and Onex Partners III PV LP (b) Onex Partners III GP LP, through Onex Corporation's ownership of all of the equity of Onex Partners GP Inc., the general partner of Onex Partners III GP LP, (c) Onex US Principals LP, through Onex Corporation's ownership of all of the equity of Onex American Holdings GP LLC, the general partner of Onex US Principals LP,

F5 · ownership.nature: (continued) (d) Onex OP V Holdings SARL, through Onex Corporation's ownership of all of the equity of Onex American Holdings Subco LLC, which controls Onex Partners Holdings LLC, which in turn owns all of the outstanding equity of Onex OP V Holdings SARL; (e) Onex Advisor Subco III LLC, through Gerald W. Schwartz's indirect control of 1597257 Ontario Inc., which owns all of the voting equity of New PCo II Investments Ltd., which owns all of the equity interest of Onex Advisor Subco III LLC; and (f) OPV Gem Aggregator LP, through Onex Corporation's ownership of all of the equity of Onex Partners Canadian GP Inc., which owns all of the equity of Onex Partners V GP Limited, which is the general partner of OPV Gem Aggregator LP.

F7 · ownership.nature: Effective from May 11, 2026, Mr. Gerald W. Schwartz no longer may be deemed to share beneficial ownership of the shares of Common Stock beneficially owned by Onex Corporation. Mr. Schwartz beneficially owns approximately 0.2% of the Common Stock as a result of his indirect ownership of the equity of Onex Advisor Subco III LLC. Based on certain arrangements regarding the shares of Common Stock held by Onex Advisor Subco III LLC and beneficially owned by Mr. Schwartz, the shares of Common Stock beneficially owned by Mr. Schwartz will be voted in the same manner as shares of Common Stock that may be deemed to be beneficially owned by Onex Corporation. Mr. Schwartz and Onex Corporation may therefore be deemed to be a member of a "group" for purposes of Section 13(d)(3) of the Exchange Act.

F8 · ownership.nature: (Continued from footnote 7) Mr. Schwartz disclaims beneficial ownership of the shares of Common Stock that may be deemed to be beneficially owned by Onex Corporation, except to the extent of his pecuniary interest, if any, therein, and Onex Corporation disclaims beneficial ownership of the shares of Common Stock beneficially owned by Mr. Schwartz.

SEC source: 0001193125-26-303534 · ownership.xml · nonDerivative · entry 1

ONEX CORP · CIK 0000937226 · 10% owner

SCHWARTZ GERALD W · CIK 0001275599 · 10% owner

Onex Partners GP Inc. · CIK 0001544360 · 10% owner

Onex Partners III GP LP · CIK 0001506665 · 10% owner

ONEX PARTNERS III LP · CIK 0001435855 · 10% owner

ONEX PARTNERS III PV LP · CIK 0001446974 · 10% owner

Onex Partners III Select LP · CIK 0001470880 · 10% owner

New PCo II Investments, Ltd. · CIK 0001593408 · 10% owner

Onex Advisor Subco III LLC · CIK 0001695911 · 10% owner

1597257 Ontario Inc. · CIK 0001517831 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

F1 · kind: Pursuant to and in connection with the transactions contemplated by that certain Agreement and Plan of Merger, dated May 9, 2026, entered into by Emerald Holding, Inc., a Delaware corporation (the "Company" or "Emerald"), Emma Buyer, LLC, a Delaware limited liability company ("Parent"), and Emma Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of Parent ("Merger Sub"), on July 14, 2026, Merger Sub merged with and into Emerald, with Emerald surviving the merger and becoming a wholly-owned subsidiary of Parent (such merger, the "Transaction"). Parent and Merger Sub are newly formed holding companies owned by funds managed by affiliates of Apollo Global Management, Inc. ("Apollo").

F2 · kind: (Continued from footnote 1) Each share of common stock, par value $0.01 per share, of Emerald (each, a share of "Emerald Common Stock") issued and outstanding immediately prior to the effective time of the Transaction (the "Effective Time"), other than shares of Emerald Common Stock (i) held by Emerald as treasury stock or owned by Parent or Merger Sub (which were cancelled) or any wholly owned subsidiary of Emerald and Parent (other than Merger Sub), or (ii) as to which appraisal rights were properly exercised in accordance with Delaware law (and not validly withdrawn), was cancelled and converted into the right to receive $5.03 per share of Emerald Common Stock in cash (the "Merger Consideration"), without interest.

F3 · shares: Includes: (i) 33,135,329 shares of Common Stock held of record by Onex Partners III LP, (ii) 1,377,397 shares of Common Stock held of record by Onex Partners III GP LP, (iii) 423,159 shares of Common Stock held of record by Onex US Principals LP, (iv) 420,116 shares of Common Stock held of record by Onex Partners III PV LP, (v) 11,125,186 shares of Common Stock held of record by Onex OP V Holdings SARL, (vi) 106,562 shares of Common Stock held of record by Onex Partners III Select LP and 137,461,868 shares of Common Stock held of record by OPV Gem Aggregator LP.

F1 · price: Pursuant to and in connection with the transactions contemplated by that certain Agreement and Plan of Merger, dated May 9, 2026, entered into by Emerald Holding, Inc., a Delaware corporation (the "Company" or "Emerald"), Emma Buyer, LLC, a Delaware limited liability company ("Parent"), and Emma Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of Parent ("Merger Sub"), on July 14, 2026, Merger Sub merged with and into Emerald, with Emerald surviving the merger and becoming a wholly-owned subsidiary of Parent (such merger, the "Transaction"). Parent and Merger Sub are newly formed holding companies owned by funds managed by affiliates of Apollo Global Management, Inc. ("Apollo").

F2 · price: (Continued from footnote 1) Each share of common stock, par value $0.01 per share, of Emerald (each, a share of "Emerald Common Stock") issued and outstanding immediately prior to the effective time of the Transaction (the "Effective Time"), other than shares of Emerald Common Stock (i) held by Emerald as treasury stock or owned by Parent or Merger Sub (which were cancelled) or any wholly owned subsidiary of Emerald and Parent (other than Merger Sub), or (ii) as to which appraisal rights were properly exercised in accordance with Delaware law (and not validly withdrawn), was cancelled and converted into the right to receive $5.03 per share of Emerald Common Stock in cash (the "Merger Consideration"), without interest.

F1 · acquired: Pursuant to and in connection with the transactions contemplated by that certain Agreement and Plan of Merger, dated May 9, 2026, entered into by Emerald Holding, Inc., a Delaware corporation (the "Company" or "Emerald"), Emma Buyer, LLC, a Delaware limited liability company ("Parent"), and Emma Merger Sub, Inc., a Delaware corporation and a wholly-owned subsidiary of Parent ("Merger Sub"), on July 14, 2026, Merger Sub merged with and into Emerald, with Emerald surviving the merger and becoming a wholly-owned subsidiary of Parent (such merger, the "Transaction"). Parent and Merger Sub are newly formed holding companies owned by funds managed by affiliates of Apollo Global Management, Inc. ("Apollo").

F2 · acquired: (Continued from footnote 1) Each share of common stock, par value $0.01 per share, of Emerald (each, a share of "Emerald Common Stock") issued and outstanding immediately prior to the effective time of the Transaction (the "Effective Time"), other than shares of Emerald Common Stock (i) held by Emerald as treasury stock or owned by Parent or Merger Sub (which were cancelled) or any wholly owned subsidiary of Emerald and Parent (other than Merger Sub), or (ii) as to which appraisal rights were properly exercised in accordance with Delaware law (and not validly withdrawn), was cancelled and converted into the right to receive $5.03 per share of Emerald Common Stock in cash (the "Merger Consideration"), without interest.

F4 · ownership.nature: Onex Corporation, a corporation whose subordinated voting shares are traded on the Toronto Stock Exchange, may be deemed to beneficially own the Common Stock held of record by (a) Onex Partners III LP, Onex Partners III Select LP, and Onex Partners III PV LP through Onex Corporation's direct ownership and control of Onex Partners GP Inc., the general partner of Onex Partners III GP LP, the general partner of each of Onex Partners III LP, Onex Partners III Select LP, and Onex Partners III PV LP (b) Onex Partners III GP LP, through Onex Corporation's ownership of all of the equity of Onex Partners GP Inc., the general partner of Onex Partners III GP LP, (c) Onex US Principals LP, through Onex Corporation's ownership of all of the equity of Onex American Holdings GP LLC, the general partner of Onex US Principals LP,

F5 · ownership.nature: (continued) (d) Onex OP V Holdings SARL, through Onex Corporation's ownership of all of the equity of Onex American Holdings Subco LLC, which controls Onex Partners Holdings LLC, which in turn owns all of the outstanding equity of Onex OP V Holdings SARL; (e) Onex Advisor Subco III LLC, through Gerald W. Schwartz's indirect control of 1597257 Ontario Inc., which owns all of the voting equity of New PCo II Investments Ltd., which owns all of the equity interest of Onex Advisor Subco III LLC; and (f) OPV Gem Aggregator LP, through Onex Corporation's ownership of all of the equity of Onex Partners Canadian GP Inc., which owns all of the equity of Onex Partners V GP Limited, which is the general partner of OPV Gem Aggregator LP.

SEC source: 0001641172-25-001702 · ownership.xml · derivative · entry 2

Onex Private Equity Holdings LLC · CIK 0001838067 · 10% owner

Onex Partners Holdings LLC · CIK 0001838066 · 10% owner

Onex OP V Holdings SARL · CIK 0002002606 · 10% owner

1597257 Ontario Inc. · CIK 0001517831 · 10% owner

New PCo II Investments, Ltd. · CIK 0001593408 · 10% owner

Onex Advisor Subco III LLC · CIK 0001695911 · Director

Onex Partners Canadian GP Inc. · CIK 0001817206 · 10% owner

Onex Partners V GP Ltd · CIK 0001817315 · 10% owner

OPV Gem Aggregator LP · CIK 0001817205 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 0

Underlying: Common Stock · 137,461,868 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") was held directly by OPV Gem Aggregator LP and convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. On May 2, 2024, the Issuer mandatorily converted all of the outstanding Series A Preferred Stock into Common Stock. As a result, all of the Series A Preferred Stock held of record by OPV Gem Aggregator LP automatically converted into 137,461,868 shares of Common Stock.

F1 · price: The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") was held directly by OPV Gem Aggregator LP and convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. On May 2, 2024, the Issuer mandatorily converted all of the outstanding Series A Preferred Stock into Common Stock. As a result, all of the Series A Preferred Stock held of record by OPV Gem Aggregator LP automatically converted into 137,461,868 shares of Common Stock.

F1 · derivative.exercise_date: The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") was held directly by OPV Gem Aggregator LP and convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. On May 2, 2024, the Issuer mandatorily converted all of the outstanding Series A Preferred Stock into Common Stock. As a result, all of the Series A Preferred Stock held of record by OPV Gem Aggregator LP automatically converted into 137,461,868 shares of Common Stock.

F1 · derivative.expiration_date: The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") was held directly by OPV Gem Aggregator LP and convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. On May 2, 2024, the Issuer mandatorily converted all of the outstanding Series A Preferred Stock into Common Stock. As a result, all of the Series A Preferred Stock held of record by OPV Gem Aggregator LP automatically converted into 137,461,868 shares of Common Stock.

F3 · ownership.nature: Onex Corporation, a corporation whose subordinated voting shares are traded on the Toronto Stock Exchange, and/or Mr. Gerald W. Schwartz, may be deemed to beneficially own the Common Stock held of record by (a) Onex Partners III LP, Onex Partners III Select LP, and Onex Partners III PV LP through Onex Corporation's direct ownership and control of Onex Partners GP Inc., the general partner of Onex Partners III GP LP, the general partner of each of Onex Partners III LP, Onex Partners III Select LP, and Onex Partners III PV LP (b) Onex Partners III GP LP, through Onex Corporation's ownership of all of the equity of Onex Partners GP Inc., the general partner of Onex Partners III GP LP, (c) Onex US Principals LP, through Onex Corporation's ownership of all of the equity of Onex Private Equity Holdings LLC ("OPEH"), which owns all of the equity of Onex American Holdings GP LLC, the general partner of Onex US Principals LP,

F4 · ownership.nature: (continued) (d) Onex OP V Holdings SARL, through Onex Corporation's ownership of all of the equity of OPEH, which owns all of the equity of Onex American Holdings Subco LLC, which controls Onex Partners Holdings LLC, which in turn owns all of the outstanding equity of Onex OP V Holdings SARL; (e) Onex Advisor Subco III LLC, through Gerald W. Schwartz's indirect control of 1597257 Ontario Inc., which owns all of the voting equity of New PCo II Investments Ltd., which owns all of the equity interest of Onex Advisor Subco III LLC; and (f) OPV Gem Aggregator LP, through Onex Corporation's ownership of all of the equity of Onex Partners Canadian GP Inc., which owns all of the equity of Onex Partners V GP Limited, which is the general partner of OPV Gem Aggregator LP.

F5 · ownership.nature: Mr. Gerald W. Schwartz, the Chairman of Onex Corporation, indirectly owns shares representing a majority of the voting rights of the shares of Onex Corporation and as such may be deemed to beneficially own all of the Common Stock beneficially owned by Onex Corporation. Each of these entities and Mr. Schwartz disclaims such beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0001641172-25-001702 · ownership.xml · nonDerivative · entry 1

Onex Private Equity Holdings LLC · CIK 0001838067 · 10% owner

Onex Partners Holdings LLC · CIK 0001838066 · 10% owner

Onex OP V Holdings SARL · CIK 0002002606 · 10% owner

1597257 Ontario Inc. · CIK 0001517831 · 10% owner

New PCo II Investments, Ltd. · CIK 0001593408 · 10% owner

Onex Advisor Subco III LLC · CIK 0001695911 · Director

Onex Partners Canadian GP Inc. · CIK 0001817206 · 10% owner

Onex Partners V GP Ltd · CIK 0001817315 · 10% owner

OPV Gem Aggregator LP · CIK 0001817205 · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 184,520,200

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") was held directly by OPV Gem Aggregator LP and convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. On May 2, 2024, the Issuer mandatorily converted all of the outstanding Series A Preferred Stock into Common Stock. As a result, all of the Series A Preferred Stock held of record by OPV Gem Aggregator LP automatically converted into 137,461,868 shares of Common Stock.

F2 · ownership.nature: Includes: (i) 33,135,329 shares of Common Stock held of record by Onex Partners III LP, (ii) 1,377,397 shares of Common Stock held of record by Onex Partners III GP LP, (iii) 423,159 shares of Common Stock held of record by Onex US Principals LP, (iv) 420,116 shares of Common Stock held of record by Onex Partners III PV LP, (v) 11,125,186 shares of Common Stock held of record by Onex OP V Holdings SARL, (vi) 106,562 shares of Common Stock held of record by Onex Partners III Select LP, (vii) 470,583 shares of Common Stock held of record by Onex Advisor Subco III LLC, and (viii) 137,461,868 shares of Common Stock held of record by OPV Gem Aggregator LP.

F3 · ownership.nature: Onex Corporation, a corporation whose subordinated voting shares are traded on the Toronto Stock Exchange, and/or Mr. Gerald W. Schwartz, may be deemed to beneficially own the Common Stock held of record by (a) Onex Partners III LP, Onex Partners III Select LP, and Onex Partners III PV LP through Onex Corporation's direct ownership and control of Onex Partners GP Inc., the general partner of Onex Partners III GP LP, the general partner of each of Onex Partners III LP, Onex Partners III Select LP, and Onex Partners III PV LP (b) Onex Partners III GP LP, through Onex Corporation's ownership of all of the equity of Onex Partners GP Inc., the general partner of Onex Partners III GP LP, (c) Onex US Principals LP, through Onex Corporation's ownership of all of the equity of Onex Private Equity Holdings LLC ("OPEH"), which owns all of the equity of Onex American Holdings GP LLC, the general partner of Onex US Principals LP,

F4 · ownership.nature: (continued) (d) Onex OP V Holdings SARL, through Onex Corporation's ownership of all of the equity of OPEH, which owns all of the equity of Onex American Holdings Subco LLC, which controls Onex Partners Holdings LLC, which in turn owns all of the outstanding equity of Onex OP V Holdings SARL; (e) Onex Advisor Subco III LLC, through Gerald W. Schwartz's indirect control of 1597257 Ontario Inc., which owns all of the voting equity of New PCo II Investments Ltd., which owns all of the equity interest of Onex Advisor Subco III LLC; and (f) OPV Gem Aggregator LP, through Onex Corporation's ownership of all of the equity of Onex Partners Canadian GP Inc., which owns all of the equity of Onex Partners V GP Limited, which is the general partner of OPV Gem Aggregator LP.

F5 · ownership.nature: Mr. Gerald W. Schwartz, the Chairman of Onex Corporation, indirectly owns shares representing a majority of the voting rights of the shares of Onex Corporation and as such may be deemed to beneficially own all of the Common Stock beneficially owned by Onex Corporation. Each of these entities and Mr. Schwartz disclaims such beneficial ownership except to the extent of their pecuniary interest therein.

SEC source: 0000899243-20-022582 · doc4.xml · derivative · entry 1

ONEX CORP · CIK 0000937226 · 10% owner

SCHWARTZ GERALD W · CIK 0001275599 · 10% owner

1597257 Ontario Inc. · CIK 0001517831 · 10% owner

New PCo II Investments, Ltd. · CIK 0001593408 · 10% owner

Onex Partners Canadian GP Inc. · CIK 0001817206 · 10% owner

Onex Partners V GP Ltd · CIK 0001817315 · 10% owner

OPV Gem Aggregator LP · CIK 0001817205 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 69,718,919

Underlying: Common Stock · 36,050,934 shares

Expires not disclosed

F1 · derivative.exercise_price: The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") is held directly by OPV Gem Aggregator LP and is convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. Each share of Series A Preferred Stock is initially convertible into approximately 1.59 shares of Common Stock, which is equivalent to the initial liquidation preference per share of $5.60 divided by the initial conversion price of $3.52 per share. The Series A Preferred Stock is currently exercisable and has no expiration date.

F1 · derivative.exercise_date: The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") is held directly by OPV Gem Aggregator LP and is convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. Each share of Series A Preferred Stock is initially convertible into approximately 1.59 shares of Common Stock, which is equivalent to the initial liquidation preference per share of $5.60 divided by the initial conversion price of $3.52 per share. The Series A Preferred Stock is currently exercisable and has no expiration date.

F1 · derivative.expiration_date: The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") is held directly by OPV Gem Aggregator LP and is convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. Each share of Series A Preferred Stock is initially convertible into approximately 1.59 shares of Common Stock, which is equivalent to the initial liquidation preference per share of $5.60 divided by the initial conversion price of $3.52 per share. The Series A Preferred Stock is currently exercisable and has no expiration date.

F2 · ownership.nature: Onex Corporation, a corporation whose subordinated voting shares are traded on the Toronto Stock Exchange, and/or Mr. Gerald W. Schwartz, may be deemed to beneficially own the common stock held by OPV Gem Aggregator LP through Onex Corporation's ownership of all of the equity of Onex Partners Canadian GP Inc., which owns all of the equity of Onex Partners V GP Limited, which is the general partner of OPV Gem Aggregator LP. Mr. Gerald W. Schwartz, the Chairman, President and Chief Executive Officer of Onex Corporation, indirectly owns shares representing a majority of the voting rights of the shares of Onex Corporation and as such may be deemed to beneficially own all of the common stock beneficially owned by Onex Corporation. Mr. Schwartz disclaims such beneficial ownership, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: New PCo II Investments Ltd. and Onex US Principals LP, by virtue of their limited partnership interests in Onex Partners V GP LP, may be deemed to share beneficial ownership of the securities reported herein, as may: (a) 1597257 Ontario Inc., which owns all of the voting equity of New PCo II Investments Ltd.; and (b) Onex American Holdings II LLC, which owns all of the equity of Onex American Holdings GP LLC, the general partner of Onex US Principals LP. Onex Advisor Subco III LLC by virtue of its limited partnership interests in OPV Gem Aggregator LP, may be deemed to share beneficial ownership of the securities reported herein, as may Onex Advisor Subco LLC, which owns all of the equity of Onex Advisor Subco III LLC. Each of these entities disclaims such beneficial ownership, except to the extent of its pecuniary interest therein.

SEC source: 0000899243-20-018451 · doc4.xml · derivative · entry 1

ONEX CORP · CIK 0000937226 · 10% owner

SCHWARTZ GERALD W · CIK 0001275599 · 10% owner

1597257 Ontario Inc. · CIK 0001517831 · 10% owner

New PCo II Investments, Ltd. · CIK 0001593408 · 10% owner

Onex American Holdings II LLC · CIK 0001297368 · 10% owner

Onex American Holdings GP LLC · CIK 0001544361 · 10% owner

Onex US Principals LP · CIK 0001297369 · 10% owner

Onex Advisor Subco III LLC · CIK 0001695911 · 10% owner

Onex Advisor Subco LLC · CIK 0001544357 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 47,058,332

Underlying: Common Stock · 74,865,528 shares

Expires not disclosed

F1 · derivative.exercise_price: The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") is held directly by OPV Gem Aggregator LP and is convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. Each share of Series A Preferred Stock is initially convertible into approximately 1.59 shares of Common Stock, which is equivalent to the initial liquidation preference per share of $5.60 divided by the initial conversion price of $3.52 per share. The Series A Preferred Stock is currently exercisable and has no expiration date.

F1 · derivative.exercise_date: The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") is held directly by OPV Gem Aggregator LP and is convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. Each share of Series A Preferred Stock is initially convertible into approximately 1.59 shares of Common Stock, which is equivalent to the initial liquidation preference per share of $5.60 divided by the initial conversion price of $3.52 per share. The Series A Preferred Stock is currently exercisable and has no expiration date.

F1 · derivative.expiration_date: The Series A Convertible Participating Preferred Stock (the "Series A Preferred Stock") is held directly by OPV Gem Aggregator LP and is convertible into a number of shares of Common Stock that is equal to the amount of the accreted liquidation preference per share of Series A Preferred Stock divided by the conversion price then in effect. Each share of Series A Preferred Stock is initially convertible into approximately 1.59 shares of Common Stock, which is equivalent to the initial liquidation preference per share of $5.60 divided by the initial conversion price of $3.52 per share. The Series A Preferred Stock is currently exercisable and has no expiration date.

F2 · ownership.nature: Onex Corporation, a corporation whose subordinated voting shares are traded on the Toronto Stock Exchange, and/or Mr. Gerald W. Schwartz, may be deemed to beneficially own the common stock held by OPV Gem Aggregator LP through Onex Corporation's ownership of all of the equity of Onex Partners Canadian GP Inc., which owns all of the equity of Onex Partners V GP Limited, which is the general partner of OPV Gem Aggregator LP. Mr. Gerald W. Schwartz, the Chairman, President and Chief Executive Officer of Onex Corporation, indirectly owns shares representing a majority of the voting rights of the shares of Onex Corporation and as such may be deemed to beneficially own all of the common stock beneficially owned by Onex Corporation. Mr. Schwartz disclaims such beneficial ownership, except to the extent of his pecuniary interest therein.

F3 · ownership.nature: New PCo II Investments Ltd. and Onex US Principals LP, by virtue of their limited partnership interests in Onex Partners V GP LP, may be deemed to share beneficial ownership of the securities reported herein, as may: (a) 1597257 Ontario Inc., which owns all of the voting equity of New PCo II Investments Ltd.; and (b) Onex American Holdings II LLC, which owns all of the equity of Onex American Holdings GP LLC, the general partner of Onex US Principals LP. Onex Advisor Subco III LLC by virtue of its limited partnership interests in OPV Gem Aggregator LP, may be deemed to share beneficial ownership of the securities reported herein, as may Onex Advisor Subco LLC, which owns all of the equity of Onex Advisor Subco III LLC. Each of these entities disclaims such beneficial ownership, except to the extent of its pecuniary interest therein.

SEC source: 0001140361-18-017431 · doc1.xml · nonDerivative · entry 1

ONEX CORP · CIK 0000937226 · 10% owner

1597257 Ontario Inc. · CIK 0001517831 · 10% owner

New PCo II Investments, Ltd. · CIK 0001593408 · 10% owner

Onex Advisor Subco LLC · CIK 0001544357 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 47,058,332

F1 · shares: Includes 528,099, 21,953, 6,744, 6,696, 177,310, 1,698 and 7,500 shares of common stock sold by Onex Partners III LP, Onex Partners III GP LP, Onex US Principals LP, Onex Partners III PV LP, Onex Expo SARL, Onex Partners III Select LP and Onex Advisor Subco III LLC, respectively. The shares of common stock were sold pursuant to the exercise of the option to purchase additional shares pursuant to the Underwriting Agreement dated March 8, 2018.

F2 · price: This amount represents the $18.50 public offering price per share of the issuer's common stock less the underwriting discount of $0.74 per share.

F3 · ownership.nature: Onex Corporation, a corporation whose subordinated voting shares are traded on the Toronto Stock Exchange, and/or Mr. Gerald W. Schwartz, may be deemed to beneficially own the common stock held by (a) Onex Partners III LP, through Onex Corporation's indirect ownership or control of Onex Partners Manager GP ULC, the general partner of Onex Partners Manager LP, the agent of Onex Partners III GP LP, the general partner of Onex Partners III LP, (b) Onex Partners III GP LP, through Onex Corporation's ownership of all of the equity of Onex Partners GP Inc., the general partner of Onex Partners III GP LP, (c) Onex US Principals LP, through Onex Corporation's ownership of all of the equity of Onex American Holdings II LLC, which owns all of the equity of Onex American Holdings GP LLC, the general partner of Onex US Principals LP, (d) Onex Partners III PV LP, through Onex Corporation's indirect ownership or control of Onex Partners Manager GP ULC,

F4 · ownership.nature: (continued from footnote 3) the general partner of Onex Partners Manager LP, the agent of Onex Partners III GP LP, the general partner of Onex Partners III PV LP, (e) Onex Expo SARL, through Onex Corporation's ownership of all of the equity of Onex American Holdings II LLC, which owns all of the equity of (i) Onex American Holdings Subco LLC, which in turn holds all of the equity of OAH Wind LLC, which owns approximately 95% of the outstanding equity of Onex Expo SARL, and (ii) all of the outstanding equity of each of Expo EI LLC and Expo EI II LLC which, through their collective ownership of Expo EI III LLC, own the remaining outstanding equity of Onex Expo SARL, (f) Onex Partners III Select LP, through Onex Corporation's indirect ownership or control of Onex Partners Manager GP ULC, the general partner of Onex Partners Manager LP, the agent of Onex Partners III GP LP, the general partner of Onex Partners III Select LP, and

F5 · ownership.nature: (continued from footnote 4) (g) Onex Advisor Subco III LLC, through Gerald W. Schwartz's indirect control of 1597257 Ontario Inc., which owns all of the voting equity of New PCo II Investments Ltd., which owns all of the equity interest of Onex Advisor Subco LLC which in turn owns all of the equity of Onex Advisor Subco III LLC. Mr. Gerald W. Schwartz, the Chairman, President and Chief Executive Officer of Onex Corporation, indirectly owns shares representing a majority of the voting rights of the shares of Onex Corporation and as such may be deemed to beneficially own all of the common stock beneficially owned by Onex Corporation. Mr. Schwartz disclaims such beneficial ownership, except to the extent of his pecuniary interest therein.

F6 · ownership.nature: Due to the limitations of the Securities and Exchange Commission's EDGAR system, Gerald W. Schwartz, Onex Partners III LP, Onex Partners III GP LP, Onex US Principals LP, Onex Partners III PV LP, Onex Expo SARL, Onex Partners III Select LP, Onex Advisor Subco III LLC, Onex Partners Manager GP ULC, Onex Partners Manager LP, Onex Partners GP Inc., Onex American Holdings II LLC, Onex American Holdings GP LLC, Onex American Holdings Subco LLC, OAH Wind LLC, Expo EI LLC, Expo EI II LLC and Expo EI III LLC filed a separate Form 4.

SEC source: 0001140361-18-013638 · doc1.xml · nonDerivative · entry 1

ONEX CORP · CIK 0000937226 · 10% owner

1597257 Ontario Inc. · CIK 0001517831 · 10% owner

New PCo II Investments, Ltd. · CIK 0001593408 · 10% owner

Onex Advisor Subco LLC · CIK 0001544357 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 47,808,332

F1 · shares: Includes 4,224,799, 175,620, 53,953, 53,565, 1,418,476, 13,587, and 60,000 shares of common stock sold by Onex Partners III LP, Onex Partners III GP LP, Onex US Principals LP, Onex Partners III PV LP, Onex Expo SARL, Onex Partners III Select LP and Onex Advisor Subco III LLC, respectively. The shares of common stock were sold pursuant to the Underwriting Agreement dated March 8, 2018.

F2 · price: This amount represents the $18.50 public offering price per share of the issuer's common stock less the underwriting discount of $0.74 per share.

F3 · ownership.nature: Onex Corporation, a corporation whose subordinated voting shares are traded on the Toronto Stock Exchange, and/or Mr. Gerald W. Schwartz, may be deemed to beneficially own the common stock held by (a) Onex Partners III LP, through Onex Corporation's indirect ownership or control of Onex Partners Manager GP ULC, the general partner of Onex Partners Manager LP, the agent of Onex Partners III GP LP, the general partner of Onex Partners III LP, (b) Onex Partners III GP LP, through Onex Corporation's ownership of all of the equity of Onex Partners GP Inc., the general partner of Onex Partners III GP LP, (c) Onex US Principals LP, through Onex Corporation's ownership of all of the equity of Onex American Holdings II LLC, which owns all of the equity of Onex American Holdings GP LLC, the general partner of Onex US Principals LP, (d) Onex Partners III PV LP, through Onex Corporation's indirect ownership or control of Onex Partners Manager GP ULC,

F4 · ownership.nature: (continued from footnote 3) the general partner of Onex Partners Manager LP, the agent of Onex Partners III GP LP, the general partner of Onex Partners III PV LP, (e) Onex Expo SARL, through Onex Corporation's ownership of all of the equity of Onex American Holdings II LLC, which owns all of the equity of (i) Onex American Holdings Subco LLC, which in turn holds all of the equity of OAH Wind LLC, which owns approximately 95% of the outstanding equity of Onex Expo SARL, and (ii) all of the outstanding equity of each of Expo EI LLC and Expo EI II LLC which, through their collective ownership of Expo EI III LLC, own the remaining outstanding equity of Onex Expo SARL, (f) Onex Partners III Select LP, through Onex Corporation's indirect ownership or control of Onex Partners Manager GP ULC, the general partner of Onex Partners Manager LP, the agent of Onex Partners III GP LP, the general partner of Onex Partners III Select LP, and

F5 · ownership.nature: (continued from footnote 4) (g) Onex Advisor Subco III LLC, through Gerald W. Schwartz's indirect control of 1597257 Ontario Inc., which owns all of the voting equity of New PCo II Investments Ltd., which owns all of the equity interest of Onex Advisor Subco LLC which in turn owns all of the equity of Onex Advisor Subco III LLC. Mr. Gerald W. Schwartz, the Chairman, President and Chief Executive Officer of Onex Corporation, indirectly owns shares representing a majority of the voting rights of the shares of Onex Corporation and as such may be deemed to beneficially own all of the common stock beneficially owned by Onex Corporation. Mr. Schwartz disclaims such beneficial ownership, except to the extent of his pecuniary interest therein.

F6 · ownership.nature: Due to the limitations of the Securities and Exchange Commission's EDGAR system, Gerald W. Schwartz, Onex Partners III LP, Onex Partners III GP LP, Onex US Principals LP, Onex Partners III PV LP, Onex Expo SARL, Onex Partners III Select LP, Onex Advisor Subco III LLC, Onex Partners Manager GP ULC, Onex Partners Manager LP, Onex Partners GP Inc., Onex American Holdings II LLC, Onex American Holdings GP LLC, Onex American Holdings Subco LLC, OAH Wind LLC, Expo EI LLC, Expo EI II LLC and Expo EI III LLC filed a separate Form 4.

SEC source: 0001140361-17-018106 · doc1.xml · nonDerivative · entry 1

ONEX CORP · CIK 0000937226 · 10% owner

1597257 Ontario Inc. · CIK 0001517831 · 10% owner

New PCo II Investments, Ltd. · CIK 0001593408 · 10% owner

Onex Advisor Subco LLC · CIK 0001544357 · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See footnotes

Disclosed balance after: 53,808,332

F1 · shares: Includes 5,275,128, 219,281, 67,367, 66,883, 1,771,126, 16,965 and 74,917 shares of common stock sold by Onex Partners III LP, Onex Partners III GP LP, Onex US Principals LP, Onex Partners III PV LP, Onex Expo SARL, Onex Partners III Select LP and Onex Advisor Subco III LLC, respectively. The shares of common stock were sold pursuant to the Underwriting Agreement, dated April 27, 2017, entered into in connection with the Issuer's initial public offering.

F2 · ownership.nature: Onex Corporation, a corporation whose subordinated voting shares are traded on the Toronto Stock Exchange, and/or Mr. Gerald W. Schwartz, may be deemed to beneficially own the common stock held by (a) Onex Partners III LP, through Onex Corporation's indirect ownership or control of Onex Partners Manager GP ULC, the general partner of Onex Partners Manager LP, the agent of Onex Partners III GP LP, the general partner of Onex Partners III LP, (b) Onex Partners III GP LP, through Onex Corporation's ownership of all of the equity of Onex Partners GP Inc., the general partner of Onex Partners III GP LP, (c) Onex US Principals LP, through Onex Corporation's equity of Onex American Holdings II LLC, which owns all of the equity of Onex American Holdings GP LLC, the general partner of Onex US Principals LP, (d) Onex Partners III PV LP, through Onex Corporation's indirect ownership or control of Onex Partners Manager GP ULC,

F3 · ownership.nature: (continued from footnote 2) the general partner of Onex Partners Manager LP, the agent of Onex Partners III GP LP, the general partner of Onex Partners III PV LP, (e) Onex Expo SARL, through Onex Corporation's ownership of all of the equity of Onex American Holdings II LLC, which owns all of the equity of (i) Onex American Holdings Subco LLC, which in turn holds all of the equity of OAH Wind LLC, which owns approximately 95% of the outstanding equity of Onex Expo SARL, and (ii) all of the outstanding equity of each of Expo EI LLC and Expo EI II LLC which, through their collective ownership of Expo EI III LLC, own the remaining outstanding equity of Onex Expo SARL, (f) Onex Partners III Select LP, through Onex Corporation's indirect ownership or control of Onex Partners Manager GP ULC, the general partner of Onex Partners Manager LP, the agent of Onex Partners III GP LP, the general partner of Onex Partners III Select LP, and

F4 · ownership.nature: (continued from footnote 3) (g) Onex Advisor Subco III LLC, through Gerald W. Schwartz's indirect control of 1597257 Ontario Inc., which owns all of the voting equity of New PCo II Investments, Ltd., which owns all of the equity interest of Onex Advisor Subco LLC which in turn owns all of the equity of Onex Advisor Subco III LLC. Mr. Gerald W. Schwartz, the Chairman, President and Chief Executive Officer of Onex Corporation, indirectly owns shares representing a majority of the voting rights of the shares of Onex Corporation and as such may be deemed to beneficially own all of the common stock beneficially owned by Onex Corporation. Mr. Schwartz disclaims such beneficial ownership, except to the extent of his pecuniary interest therein.

F5 · ownership.nature: Due to the limitations of the Securities and Exchange Commission's EDGAR system, Gerald W. Schwartz, Onex Partners III LP, Onex Partners III GP LP, Onex US Principals LP, Onex Partners III PV LP, Onex Expo SARL, Onex Partners III Select LP, Onex Advisor Subco III LLC, Onex Partners Manager GP ULC, Onex Partners Manager LP, Onex Partners GP Inc., Onex American Holdings II LLC, Onex American Holdings GP LLC, Onex American Holdings Subco LLC, OAH Wind LLC, Expo EI LLC, Expo EI II LLC and Expo EI III LLC filed a separate Form 4.