Warburg Pincus (Bermuda) Private Equity GP Ltd.

SEC source: 0001999371-26-010903 · ownership.xml · nonDerivative · entry 1

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

Warburg Pincus (Cayman) XI, L.P. · CIK 0001554853 · Director · 10% owner

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus Private Equity XI-C, L.P. · CIK 0001550877 · Director · 10% owner

Warburg Pincus XI-C, LLC · CIK 0001554852 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 0

F1 · shares: On May 13, 2026, certain of the Warburg Pincus Entities (as defined below) sold a total of 19,102,952 shares of Common Stock of Sotera Health Company (the "Issuer") in an underwritten public secondary offering (the "Offering").

F2 · ownership.nature: Warburg Pincus XI, L.P., a Delaware limited partnership ("WP XI GP"), is the general partner of each of (i) Warburg Pincus Private Equity XI, L.P. ("WP XI"), (ii) Warburg Pincus Private Equity XI-B, L.P. ("WP XI-B"), (iii) WP XI Partners, L.P. ("WP XI Partners") and (iv) Warburg Pincus XI Partners, L.P. ("Warburg Pincus XI Partners"). WP Global LLC ("WP Global"), is the general partner of WP XI GP. Warburg Pincus Partners II, L.P. ("WPP II"), is the managing member of WP Global.Warburg Pincus Partners GP LLC ("WPP GP LLC"), is the general partner of WPP II. Warburg Pincus & Co. ("WP"), is the managing member of WPP GP LLC.Warburg Pincus (Cayman) XI, L.P. ("WP XI Cayman GP"), is the general partner of Warburg Pincus Private Equity XI-C, L.P. ("WP XI-C" and, together with WP XI,WP XI-B, WP XI Partners and Warburg Pincus XI Partners, the "WP XI Funds").

F3 · ownership.nature: The WP XI Funds, Bull Co-Invest L.P. ("Bull Co-Invest"), Bull Holdco L.P. ("Bull Holdco"), WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Entities."

F4 · ownership.nature: Each Warburg Pincus Entity disclaims beneficial ownership with respect to any shares of Common Stock of the Issuer, except to the extent of its pecuniary interest in such shares of Common Stock, if any. The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are directors-by-deputization solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Information with respect to each of the Warburg Pincus Entities is given solely by such Warburg Pincus Entity, and no Warburg Pincus Entity has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Entity.

F5 · ownership.nature: Warburg Pincus XI-C, LLC ("WP XI-C LLC"), is the general partner of WP XI Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman"), is the managing member of WP XI-C LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP"), is the general partner of WPP II Cayman. WP Bull Manager LLC ("WP Bull Manager"), is the general partner of Bull Co-Invest. WP is managing member of WP Bull Manager. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), is the manager of the WP XI Funds. The WP XI Funds share limited partnership ownership in Bull Holdco on a pro rata basis in accordance with their respective numbers of Contributed Shares.

SEC source: 0001999371-26-005534 · ownership.xml · nonDerivative · entry 1

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

Warburg Pincus (Cayman) XI, L.P. · CIK 0001554853 · Director · 10% owner

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus Private Equity XI-C, L.P. · CIK 0001550877 · Director · 10% owner

Warburg Pincus XI-C, LLC · CIK 0001554852 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 19,102,952

F1 · shares: On March 6, 2026, certain of the Warburg Pincus Entities (as defined below) sold a total of 15,000,000 shares of Common Stock of Sotera Health Company (the "Issuer") in an underwritten public secondary offering (the "Offering").

F2 · balance_after: Following the Offering, consists of (i) 15,287,717 shares of Common Stock of the Issuer held by Bull Holdco L.P. ("Bull Holdco") and (iii) 3,815,235 shares of Common Stock of the Issuer held by Bull Co-Invest L.P., a Delaware limited partnership ("Bull Co-Invest").

F3 · ownership.nature: Warburg Pincus XI, L.P., a Delaware limited partnership ("WP XI GP"), is the general partner of each of (i) Warburg Pincus Private Equity XI, L.P. ("WP XI"), (ii)Warburg Pincus Private Equity XI-B, L.P. ("WP XI-B"), (iii) WP XI Partners, L.P. ("WP XI Partners") and (iv) Warburg Pincus XI Partners, L.P. ("Warburg Pincus XI Partners"). WP Global LLC ("WP Global"), is the general partner of WP XI GP. Warburg Pincus Partners II, L.P. ("WPP II"), is the managing member of WP Global.Warburg Pincus Partners GP LLC ("WPP GP LLC"), is the general partner of WPP II. Warburg Pincus & Co. ("WP"), is the managing member of WPP GP LLC.Warburg Pincus (Cayman) XI, L.P. ("WP XI Cayman GP"), is the general partner of Warburg Pincus Private Equity XI-C, L.P. ("WP XI-C" and, together with WP XI,WP XI-B, WP XI Partners and Warburg Pincus XI Partners, the "WP XI Funds").

F4 · ownership.nature: The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Entities."

F5 · ownership.nature: Each Warburg Pincus Entity disclaims beneficial ownership with respect to any shares of Common Stock of the Issuer, except to the extent of its pecuniary interest in such shares of Common Stock, if any. The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are directors-by-deputization solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Information with respect to each of the Warburg Pincus Entities is given solely by such Warburg Pincus Entity, and no Warburg Pincus Entity has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Entity.

F6 · ownership.nature: Warburg Pincus XI-C, LLC ("WP XI-C LLC"), is the general partner of WP XI Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman"), is the managing member of WP XI-C LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP"), is the general partner of WPP II Cayman. WP Bull Manager LLC ("WP Bull Manager"), is the general partner of Bull Co-Invest. WP is managing member of WP Bull Manager. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), is the manager of the WP XI Funds. The WP XI Funds share limited partnership ownership in Bull Holdco on a pro rata basis in accordance with their respective numbers of Contributed Shares.

SEC source: 0001140361-26-005846 · form4.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director

WARBURG PINCUS FINANCIAL SECTOR II-E (CAYMAN), L.P. · CIK 0002003518 · Director

WARBURG PINCUS FINANCIAL SECTOR II PARTNERS (CAYMAN), L.P. · CIK 0002003367 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP, L.P. · CIK 0002003345 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP LLC · CIK 0002003491 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP, L.P. · CIK 0002003513 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP LLC · CIK 0002003512 · Director

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director

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: 2,640,244

F1 · price: Reflects the sale of 4,250,000 shares of Common Stock by the Purchasers (as defined in footnote 2) at a price per share of $20.10 pursuant to Rule 144 under the Securities Act of 1933, as amended.

F2 · ownership.nature: Reflects securities held directly by (i) WP Clipper GG 14 L.P., a Cayman Islands exempted company with limited liability ("WPGG14 Purchaser") and (ii) WP Clipper FS II L.P., a Cayman Islands exempted company with limited liability ("WPFSII Purchaser" and , together with WPGG14 Purchaser, the "Purchasers"). The equity interests of WPGG14 Purchaser are held by (i) Warburg Pincus (Callisto) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Callisto 14"), (ii) Warburg Pincus (Europa) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Europa 14"), (iii) Warburg Pincus Global Growth 14-B (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-B"), (iv) Warburg Pincus Global Growth 14-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-E"), (continued on footnote 3)

F3 · ownership.nature: (continued from footnote 2) (v) Warburg Pincus Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("Warburg Pincus Global Growth 14 Partners"), and (vi) WP Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14 Partners" and, together with WP Callisto 14, WP Europa 14, WP Global Growth 14-B, WP Global Growth 14-E and Warburg Pincus Global Growth 14 Partners, the "WP Global Growth 14 Funds"). The equity interests of WPFSII Purchaser are held by (i) Warburg Pincus Financial Sector II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II LP"), (ii) Warburg Pincus Financial Sector II-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II-E"), and (iii) Warburg Pincus Financial Sector II Partners (Cayman), L.P., (continued on footnote 4)

F4 · ownership.nature: (continued from footnote 3) a Cayman Islands exempted limited partnership ("WP Financial Sector II Partners" and, together with WP Financial Sector II LP and WP Financial Sector II-E, the "WP Financial Sector II Funds"). Warburg Pincus (Cayman) Global Growth 14 GP, L.P., a Cayman Islands exempted limited partnership ("WPGG Cayman 14 GP"), is the general partner of each of the WP Global Growth 14 Funds. Warburg Pincus (Cayman) Global Growth 14 GP LLC, a Delaware limited liability company ("WPGG Cayman 14 GP LLC"), is the general partner of WPGG Cayman 14 GP. Warburg Pincus (Cayman) Financial Sector II GP, L.P., a Cayman Islands exempted limited partnership ("WPFS Cayman II GP"), is the general partner of each of the WP Financial Sector II Funds. Warburg Pincus (Cayman) Financial Sector II GP LLC, a Delaware limited liability company ("WPFS Cayman II GP LLC"), is the general partner of WPFS Cayman II GP. (continued on footnote 5)

F5 · ownership.nature: (continued from footnote 4) Warburg Pincus Partners II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WPP II Cayman"), is the managing member of WPGG Cayman 14 GP LLC and WPFS Cayman II GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd., a Bermuda exempted company ("WP Bermuda GP"), is the general partner of WPP II Cayman. Warburg Pincus LLC, a New York limited liability company ("WP LLC" and, together with the WP Global Growth 14 Funds, the WP Financial Sector II Funds, WPGG Cayman 14 GP, WPGG Cayman 14 GP LLC, WPFS Cayman II GP, WPFS Cayman II GP LLC, WPP II Cayman and WP Bermuda GP, the "Reporting Persons" and each, a "Reporting Person"), is the manager of the WP Global Growth 14 Funds and WP Financial Sector II Funds. Investment and voting decisions with respect to the securities of the Issuer held by the Reporting Persons are made by a committee comprised of three or more individuals and all members (continued on footnote 6)

F6 · ownership.nature: (continued from footnote 5) of such committee disclaim beneficial ownership of the securities of the Issuer held by the Reporting Persons. Information with respect to each of the Reporting Persons is given solely by such Reporting Persons, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Pursuant to Rule 16a-1(a)(4) of the Exchange Act, each of the Reporting Persons, other than the Purchasers, herein states that this filing shall not be deemed an admission that it or he is the beneficial owner of any of the securities of the Issuer covered by this Statement. Each of the Reporting Persons disclaim their beneficial ownership of such securities except to the extent of its pecuniary interest therein.

SEC source: 0001140361-26-003743 · form4.xml · nonDerivative · entry 3

WARBURG PINCUS LLC · CIK 0001162870 · Director

WARBURG PINCUS FINANCIAL SECTOR II-E (CAYMAN), L.P. · CIK 0002003518 · Director

WARBURG PINCUS FINANCIAL SECTOR II PARTNERS (CAYMAN), L.P. · CIK 0002003367 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP, L.P. · CIK 0002003345 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP LLC · CIK 0002003491 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP LLC · CIK 0002003512 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP, L.P. · CIK 0002003513 · Director

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director

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

F9 · shares: Reflects the sale of 1,000,000 shares of NVCE Stock by the Purchasers (as defined in footnote 3) at a price per share of $20.00 in a private sale to Issuer.

F9 · price: Reflects the sale of 1,000,000 shares of NVCE Stock by the Purchasers (as defined in footnote 3) at a price per share of $20.00 in a private sale to Issuer.

F4 · ownership.nature: Reflects securities held directly by (i) WP Clipper GG 14 L.P., a Cayman Islands exempted company with limited liability ("WPGG14 Purchaser") and (ii) WP Clipper FS II L.P., a Cayman Islands exempted company with limited liability ("WPFSII Purchaser" and, together with WPGG14 Purchaser, the "Purchasers"). The equity interests of WPGG14 Purchaser are held by (i) Warburg Pincus (Callisto) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Callisto 14"), (ii) Warburg Pincus (Europa) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Europa 14"), (iii) Warburg Pincus Global Growth 14-B (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-B"), (iv) Warburg Pincus Global Growth 14-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-E"), (continued on footnote 5)

F5 · ownership.nature: (continued from footnote 3) (v) Warburg Pincus Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("Warburg Pincus Global Growth 14 Partners"), and (vi) WP Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14 Partners" and, together with WP Callisto 14, WP Europa 14, WP Global Growth 14-B, WP Global Growth 14-E and Warburg Pincus Global Growth 14 Partners, the "WP Global Growth 14 Funds"). The equity interests of WPFSII Purchaser are held by (i) Warburg Pincus Financial Sector II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II LP"), (ii) Warburg Pincus Financial Sector II-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II-E"), and (iii) Warburg Pincus Financial Sector II Partners (Cayman), L.P., (continued on footnote 6)

F6 · ownership.nature: (continued from footnote 4) a Cayman Islands exempted limited partnership ("WP Financial Sector II Partners" and, together with WP Financial Sector II LP and WP Financial Sector II-E, the "WP Financial Sector II Funds"). Warburg Pincus (Cayman) Global Growth 14 GP, L.P., a Cayman Islands exempted limited partnership ("WPGG Cayman 14 GP"), is the general partner of each of the WP Global Growth 14 Funds. Warburg Pincus (Cayman) Global Growth 14 GP LLC, a Delaware limited liability company ("WPGG Cayman 14 GP LLC"), is the general partner of WPGG Cayman 14 GP. Warburg Pincus (Cayman) Financial Sector II GP, L.P., a Cayman Islands exempted limited partnership ("WPFS Cayman II GP"), is the general partner of each of the WP Financial Sector II Funds. Warburg Pincus (Cayman) Financial Sector II GP LLC, a Delaware limited liability company ("WPFS Cayman II GP LLC"), is the general partner of WPFS Cayman II GP. (continued on footnote 7)

F7 · ownership.nature: (continued from footnote 5) Warburg Pincus Partners II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WPP II Cayman"), is the managing member of WPGG Cayman 14 GP LLC and WPFS Cayman II GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd., a Bermuda exempted company ("WP Bermuda GP"), is the general partner of WPP II Cayman. Warburg Pincus LLC, a New York limited liability company ("WP LLC" and, together with the WP Global Growth 14 Funds, the WP Financial Sector II Funds, WPGG Cayman 14 GP, WPGG Cayman 14 GP LLC, WPFS Cayman II GP, WPFS Cayman II GP LLC, WPP II Cayman and WP Bermuda GP, the "Reporting Persons" and each, a "Reporting Person"), is the manager of the WP Global Growth 14 Funds and WP Financial Sector II Funds. Investment and voting decisions with respect to the securities of the Issuer held by the Reporting Persons are made by a committee comprised of three or more individuals and all members (continued on footnote 8)

F8 · ownership.nature: (continued from footnote 6) of such committee disclaim beneficial ownership of the securities of the Issuer held by the Reporting Persons. Information with respect to each of the Reporting Persons is given solely by such Reporting Persons, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Pursuant to Rule 16a-1(a)(4) of the Exchange Act, each of the Reporting Persons, other than the Purchasers, herein states that this filing shall not be deemed an admission that it or he is the beneficial owner of any of the securities of the Issuer covered by this Statement. Each of the Reporting Persons disclaim their beneficial ownership of such securities except to the extent of its pecuniary interest therein.

SEC source: 0001140361-26-003743 · form4.xml · nonDerivative · entry 2

WARBURG PINCUS LLC · CIK 0001162870 · Director

WARBURG PINCUS FINANCIAL SECTOR II-E (CAYMAN), L.P. · CIK 0002003518 · Director

WARBURG PINCUS FINANCIAL SECTOR II PARTNERS (CAYMAN), L.P. · CIK 0002003367 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP, L.P. · CIK 0002003345 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP LLC · CIK 0002003491 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP LLC · CIK 0002003512 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP, L.P. · CIK 0002003513 · Director

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director

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: 1,000,000

F2 · security: Each share of NVCE Stock automatically converts into one share of common stock, par value $0.01 per share, of the Issuer, subject to certain adjustments, upon certain sales or transfers.

F3 · price: Reflects the sale of 3,292,064 shares of NVCE Stock by the Purchasers (as defined in footnote 4) at a price per share of $20.00 pursuant to Rule 144 under the Securities Act of 1933, as amended.

F4 · ownership.nature: Reflects securities held directly by (i) WP Clipper GG 14 L.P., a Cayman Islands exempted company with limited liability ("WPGG14 Purchaser") and (ii) WP Clipper FS II L.P., a Cayman Islands exempted company with limited liability ("WPFSII Purchaser" and, together with WPGG14 Purchaser, the "Purchasers"). The equity interests of WPGG14 Purchaser are held by (i) Warburg Pincus (Callisto) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Callisto 14"), (ii) Warburg Pincus (Europa) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Europa 14"), (iii) Warburg Pincus Global Growth 14-B (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-B"), (iv) Warburg Pincus Global Growth 14-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-E"), (continued on footnote 5)

F5 · ownership.nature: (continued from footnote 3) (v) Warburg Pincus Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("Warburg Pincus Global Growth 14 Partners"), and (vi) WP Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14 Partners" and, together with WP Callisto 14, WP Europa 14, WP Global Growth 14-B, WP Global Growth 14-E and Warburg Pincus Global Growth 14 Partners, the "WP Global Growth 14 Funds"). The equity interests of WPFSII Purchaser are held by (i) Warburg Pincus Financial Sector II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II LP"), (ii) Warburg Pincus Financial Sector II-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II-E"), and (iii) Warburg Pincus Financial Sector II Partners (Cayman), L.P., (continued on footnote 6)

F6 · ownership.nature: (continued from footnote 4) a Cayman Islands exempted limited partnership ("WP Financial Sector II Partners" and, together with WP Financial Sector II LP and WP Financial Sector II-E, the "WP Financial Sector II Funds"). Warburg Pincus (Cayman) Global Growth 14 GP, L.P., a Cayman Islands exempted limited partnership ("WPGG Cayman 14 GP"), is the general partner of each of the WP Global Growth 14 Funds. Warburg Pincus (Cayman) Global Growth 14 GP LLC, a Delaware limited liability company ("WPGG Cayman 14 GP LLC"), is the general partner of WPGG Cayman 14 GP. Warburg Pincus (Cayman) Financial Sector II GP, L.P., a Cayman Islands exempted limited partnership ("WPFS Cayman II GP"), is the general partner of each of the WP Financial Sector II Funds. Warburg Pincus (Cayman) Financial Sector II GP LLC, a Delaware limited liability company ("WPFS Cayman II GP LLC"), is the general partner of WPFS Cayman II GP. (continued on footnote 7)

F7 · ownership.nature: (continued from footnote 5) Warburg Pincus Partners II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WPP II Cayman"), is the managing member of WPGG Cayman 14 GP LLC and WPFS Cayman II GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd., a Bermuda exempted company ("WP Bermuda GP"), is the general partner of WPP II Cayman. Warburg Pincus LLC, a New York limited liability company ("WP LLC" and, together with the WP Global Growth 14 Funds, the WP Financial Sector II Funds, WPGG Cayman 14 GP, WPGG Cayman 14 GP LLC, WPFS Cayman II GP, WPFS Cayman II GP LLC, WPP II Cayman and WP Bermuda GP, the "Reporting Persons" and each, a "Reporting Person"), is the manager of the WP Global Growth 14 Funds and WP Financial Sector II Funds. Investment and voting decisions with respect to the securities of the Issuer held by the Reporting Persons are made by a committee comprised of three or more individuals and all members (continued on footnote 8)

F8 · ownership.nature: (continued from footnote 6) of such committee disclaim beneficial ownership of the securities of the Issuer held by the Reporting Persons. Information with respect to each of the Reporting Persons is given solely by such Reporting Persons, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Pursuant to Rule 16a-1(a)(4) of the Exchange Act, each of the Reporting Persons, other than the Purchasers, herein states that this filing shall not be deemed an admission that it or he is the beneficial owner of any of the securities of the Issuer covered by this Statement. Each of the Reporting Persons disclaim their beneficial ownership of such securities except to the extent of its pecuniary interest therein.

SEC source: 0001140361-26-003743 · form4.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director

WARBURG PINCUS FINANCIAL SECTOR II-E (CAYMAN), L.P. · CIK 0002003518 · Director

WARBURG PINCUS FINANCIAL SECTOR II PARTNERS (CAYMAN), L.P. · CIK 0002003367 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP, L.P. · CIK 0002003345 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP LLC · CIK 0002003491 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP LLC · CIK 0002003512 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP, L.P. · CIK 0002003513 · Director

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director

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: 6,890,244

F1 · price: Reflects the sale of 7,557,936 shares of Common Stock by the Purchasers (as defined in footnote 4) at a price per share of $20.00 pursuant to Rule 144 under the Securities Act of 1933, as amended.

F4 · ownership.nature: Reflects securities held directly by (i) WP Clipper GG 14 L.P., a Cayman Islands exempted company with limited liability ("WPGG14 Purchaser") and (ii) WP Clipper FS II L.P., a Cayman Islands exempted company with limited liability ("WPFSII Purchaser" and, together with WPGG14 Purchaser, the "Purchasers"). The equity interests of WPGG14 Purchaser are held by (i) Warburg Pincus (Callisto) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Callisto 14"), (ii) Warburg Pincus (Europa) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Europa 14"), (iii) Warburg Pincus Global Growth 14-B (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-B"), (iv) Warburg Pincus Global Growth 14-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-E"), (continued on footnote 5)

F5 · ownership.nature: (continued from footnote 3) (v) Warburg Pincus Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("Warburg Pincus Global Growth 14 Partners"), and (vi) WP Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14 Partners" and, together with WP Callisto 14, WP Europa 14, WP Global Growth 14-B, WP Global Growth 14-E and Warburg Pincus Global Growth 14 Partners, the "WP Global Growth 14 Funds"). The equity interests of WPFSII Purchaser are held by (i) Warburg Pincus Financial Sector II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II LP"), (ii) Warburg Pincus Financial Sector II-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II-E"), and (iii) Warburg Pincus Financial Sector II Partners (Cayman), L.P., (continued on footnote 6)

F6 · ownership.nature: (continued from footnote 4) a Cayman Islands exempted limited partnership ("WP Financial Sector II Partners" and, together with WP Financial Sector II LP and WP Financial Sector II-E, the "WP Financial Sector II Funds"). Warburg Pincus (Cayman) Global Growth 14 GP, L.P., a Cayman Islands exempted limited partnership ("WPGG Cayman 14 GP"), is the general partner of each of the WP Global Growth 14 Funds. Warburg Pincus (Cayman) Global Growth 14 GP LLC, a Delaware limited liability company ("WPGG Cayman 14 GP LLC"), is the general partner of WPGG Cayman 14 GP. Warburg Pincus (Cayman) Financial Sector II GP, L.P., a Cayman Islands exempted limited partnership ("WPFS Cayman II GP"), is the general partner of each of the WP Financial Sector II Funds. Warburg Pincus (Cayman) Financial Sector II GP LLC, a Delaware limited liability company ("WPFS Cayman II GP LLC"), is the general partner of WPFS Cayman II GP. (continued on footnote 7)

F7 · ownership.nature: (continued from footnote 5) Warburg Pincus Partners II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WPP II Cayman"), is the managing member of WPGG Cayman 14 GP LLC and WPFS Cayman II GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd., a Bermuda exempted company ("WP Bermuda GP"), is the general partner of WPP II Cayman. Warburg Pincus LLC, a New York limited liability company ("WP LLC" and, together with the WP Global Growth 14 Funds, the WP Financial Sector II Funds, WPGG Cayman 14 GP, WPGG Cayman 14 GP LLC, WPFS Cayman II GP, WPFS Cayman II GP LLC, WPP II Cayman and WP Bermuda GP, the "Reporting Persons" and each, a "Reporting Person"), is the manager of the WP Global Growth 14 Funds and WP Financial Sector II Funds. Investment and voting decisions with respect to the securities of the Issuer held by the Reporting Persons are made by a committee comprised of three or more individuals and all members (continued on footnote 8)

F8 · ownership.nature: (continued from footnote 6) of such committee disclaim beneficial ownership of the securities of the Issuer held by the Reporting Persons. Information with respect to each of the Reporting Persons is given solely by such Reporting Persons, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Pursuant to Rule 16a-1(a)(4) of the Exchange Act, each of the Reporting Persons, other than the Purchasers, herein states that this filing shall not be deemed an admission that it or he is the beneficial owner of any of the securities of the Issuer covered by this Statement. Each of the Reporting Persons disclaim their beneficial ownership of such securities except to the extent of its pecuniary interest therein.

SEC source: 0001193125-25-310142 · ownership.xml · nonDerivative · entry 1

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Warburg Pincus Private Equity XI-C, L.P. · CIK 0001550877 · Director · 10% owner

Warburg Pincus (Cayman) XI, L.P. · CIK 0001554853 · Director · 10% owner

Warburg Pincus XI-C, LLC · CIK 0001554852 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 34,102,952

F1 · shares: On December 3, 2025, certain of the Warburg Pincus Entities (as defined below) sold a total of 9,720,000 shares of Common Stock of Sotera Health Company (the "Issuer") pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Sale").

F2 · balance_after: Following the Sale, consists of (i) 27,291,923 shares of Common Stock of the Issuer held by Bull Holdco L.P. ("Bull Holdco") and (ii) 6,811,029 shares of Common Stock of the Issuer held by Bull Co-Invest L.P., a Delaware limited partnership ("Bull Co-Invest").

F3 · ownership.nature: Warburg Pincus XI, L.P., a Delaware limited partnership ("WP XI GP"), is the general partner of each of (i) Warburg Pincus Private Equity XI, L.P. ("WP XI"), (ii)Warburg Pincus Private Equity XI-B, L.P. ("WP XI-B"), (iii) WP XI Partners, L.P. ("WP XI Partners") and (iv) Warburg Pincus XI Partners, L.P. ("Warburg Pincus XI Partners"). WP Global LLC ("WP Global"), is the general partner of WP XI GP. Warburg Pincus Partners II, L.P. ("WPP II"), is the managing member of WP Global.Warburg Pincus Partners GP LLC ("WPP GP LLC"), is the general partner of WPP II. Warburg Pincus & Co. ("WP"), is the managing member of WPP GP LLC. Warburg Pincus (Cayman) XI, L.P. ("WP XI Cayman GP"), is the general partner of Warburg Pincus Private Equity XI-C, L.P. ("WP XI-C" and, together with WP XI,WP XI-B, WP XI Partners and Warburg Pincus XI Partners, the "WP XI Funds").

F4 · ownership.nature: The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Entities."

F5 · ownership.nature: Each Warburg Pincus Entity disclaims beneficial ownership with respect to any shares of Common Stock of the Issuer, except to the extent of its pecuniary interest in such shares of Common Stock, if any. The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are directors-by-deputization solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Information with respect to each of the Warburg Pincus Entities is given solely by such Warburg Pincus Entity, and no Warburg Pincus Entity has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Entity.

F6 · ownership.nature: Warburg Pincus XI-C, LLC ("WP XI-C LLC"), is the general partner of WP XI Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman"), is the managing member of WP XI-C LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP"), is the general partner of WPP II Cayman. WP Bull Manager LLC ("WP Bull Manager"), is the general partner of Bull Co-Invest. WP is managing member of WP Bull Manager. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), is the manager of the WP XI Funds. The WP XI Funds share limited partnership ownership in Bull Holdco on a pro rata basis in accordance with their respective numbers of Contributed Shares.

SEC source: 0001193125-25-310134 · ownership.xml · nonDerivative · entry 1

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Warburg Pincus Private Equity XI-C, L.P. · CIK 0001550877 · Director · 10% owner

Warburg Pincus (Cayman) XI, L.P. · CIK 0001554853 · Director · 10% owner

Warburg Pincus XI-C, LLC · CIK 0001554852 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 34,102,952

F1 · shares: On December 3, 2025, certain of the Warburg Pincus Entities (as defined below) sold a total of 9,720,000 shares of Common Stock of Sotera Health Company (the "Issuer") pursuant to Rule 144 under the Securities Act of 1933, as amended (the "Sale").

F2 · balance_after: Following the Sale, consists of (i) 27,291,923 shares of Common Stock of the Issuer held by Bull Holdco L.P. ("Bull Holdco") and (ii) 6,811,029 shares of Common Stock of the Issuer held by Bull Co-Invest L.P., a Delaware limited partnership ("Bull Co-Invest").

F3 · ownership.nature: Warburg Pincus XI, L.P., a Delaware limited partnership ("WP XI GP"), is the general partner of each of (i) Warburg Pincus Private Equity XI, L.P. ("WP XI"), (ii)Warburg Pincus Private Equity XI-B, L.P. ("WP XI-B"), (iii) WP XI Partners, L.P. ("WP XI Partners") and (iv) Warburg Pincus XI Partners, L.P. ("Warburg Pincus XI Partners"). WP Global LLC ("WP Global"), is the general partner of WP XI GP. Warburg Pincus Partners II, L.P. ("WPP II"), is the managing member of WP Global.Warburg Pincus Partners GP LLC ("WPP GP LLC"), is the general partner of WPP II. Warburg Pincus & Co. ("WP"), is the managing member of WPP GP LLC. Warburg Pincus (Cayman) XI, L.P. ("WP XI Cayman GP"), is the general partner of Warburg Pincus Private Equity XI-C, L.P. ("WP XI-C" and, together with WP XI,WP XI-B, WP XI Partners and Warburg Pincus XI Partners, the "WP XI Funds").

F4 · ownership.nature: The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Entities."

F5 · ownership.nature: Each Warburg Pincus Entity disclaims beneficial ownership with respect to any shares of Common Stock of the Issuer, except to the extent of its pecuniary interest in such shares of Common Stock, if any. The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are directors-by-deputization solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Information with respect to each of the Warburg Pincus Entities is given solely by such Warburg Pincus Entity, and no Warburg Pincus Entity has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Entity.

F6 · ownership.nature: Warburg Pincus XI-C, LLC ("WP XI-C LLC"), is the general partner of WP XI Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman"), is the managing member of WP XI-C LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP"), is the general partner of WPP II Cayman. WP Bull Manager LLC ("WP Bull Manager"), is the general partner of Bull Co-Invest. WP is managing member of WP Bull Manager. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), is the manager of the WP XI Funds. The WP XI Funds share limited partnership ownership in Bull Holdco on a pro rata basis in accordance with their respective numbers of Contributed Shares.

SEC source: 0001999371-25-017529 · warburg_ownership.xml · nonDerivative · entry 1

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Warburg Pincus Private Equity XI-C, L.P. · CIK 0001550877 · Director · 10% owner

Warburg Pincus (Cayman) XI, L.P. · CIK 0001554853 · Director · 10% owner

Warburg Pincus XI-C, LLC · CIK 0001554852 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 43,822,952

F1 · shares: On November 10, 2025, certain of the Warburg Pincus Entities (as defined below) sold a total of 18,000,000 shares of Common Stock of Sotera Health Company (the "Issuer") in an underwritten public secondary offering (the "Offering").

F2 · balance_after: Following the Offering, consists of (i) 14,405,046 shares of Common Stock of the Issuer held by Bull Holdco L.P. ("Bull Holdco") and (ii) 3,594,954 shares of Common Stock of the Issuer held by Bull Co-Invest L.P., a Delaware limited partnership ("Bull Co-Invest").

F3 · ownership.nature: Warburg Pincus XI, L.P., a Delaware limited partnership ("WP XI GP"), is the general partner of each of (i) Warburg Pincus Private Equity XI, L.P. ("WP XI"), (ii)Warburg Pincus Private Equity XI-B, L.P. ("WP XI-B"), (iii) WP XI Partners, L.P. ("WP XI Partners") and (iv) Warburg Pincus XI Partners, L.P. ("Warburg Pincus XI Partners"). WP Global LLC ("WP Global"), is the general partner of WP XI GP. Warburg Pincus Partners II, L.P. ("WPP II"), is the managing member of WP Global.Warburg Pincus Partners GP LLC ("WPP GP LLC"), is the general partner of WPP II. Warburg Pincus & Co. ("WP"), is the managing member of WPP GP LLC.Warburg Pincus (Cayman) XI, L.P. ("WP XI Cayman GP"), is the general partner of Warburg Pincus Private Equity XI-C, L.P. ("WP XI-C" and, together with WP XI,WP XI-B, WP XI Partners and Warburg Pincus XI Partners, the "WP XI Funds").

F4 · ownership.nature: The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Entities."

F5 · ownership.nature: Each Warburg Pincus Entity disclaims beneficial ownership with respect to any shares of Common Stock of the Issuer, except to the extent of its pecuniary interest in such shares of Common Stock, if any. The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are directors-by-deputization solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Information with respect to each of the Warburg Pincus Entities is given solely by such Warburg Pincus Entity, and no Warburg Pincus Entity has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Entity.

F6 · ownership.nature: Warburg Pincus XI-C, LLC ("WP XI-C LLC"), is the general partner of WP XI Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman"), is the managing member of WP XI-C LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP"), is the general partner of WPP II Cayman. WP Bull Manager LLC ("WP Bull Manager"), is the general partner of Bull Co-Invest. WP is managing member of WP Bull Manager. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), is the manager of the WP XI Funds. The WP XI Funds share limited partnership ownership in Bull Holdco on a pro rata basis in accordance with their respective numbers of Contributed Shares.

SEC source: 0001140361-25-034475 · form4.xml · nonDerivative · entry 2

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

WARBURG PINCUS FINANCIAL SECTOR II PARTNERS (CAYMAN), L.P. · CIK 0002003367 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP, L.P. · CIK 0002003345 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP LLC · CIK 0002003491 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP, L.P. · CIK 0002003513 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP LLC · CIK 0002003512 · Director

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director

WARBURG PINCUS FINANCIAL SECTOR II-E (CAYMAN), L.P. · CIK 0002003518 · Director

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: 3,147,470

F8 · price: Reflects the sale of 1,150,000 shares of NVCE Stock by the Purchasers (as defined in footnote 3) at a price per share of $16.38 in a private sale to Issuer.

F3 · ownership.nature: Reflects securities held directly by (i) WP Clipper GG 14 L.P., a Cayman Islands exempted company with limited liability ("WPGG14 Purchaser") and (ii) WP Clipper FS II L.P., a Cayman Islands exempted company with limited liability ("WPFSII Purchaser" and , together with WPGG14 Purchaser, the "Purchasers"). The equity interests of WPGG14 Purchaser are held by (i) Warburg Pincus (Callisto) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Callisto 14"), (ii) Warburg Pincus (Europa) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Europa 14"), (iii) Warburg Pincus Global Growth 14-B (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-B"), (iv) Warburg Pincus Global Growth 14-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-E"), (continued on footnote 4)

F4 · ownership.nature: (continued from footnote 3) (v) Warburg Pincus Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("Warburg Pincus Global Growth 14 Partners"), and (vi) WP Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14 Partners" and, together with WP Callisto 14, WP Europa 14, WP Global Growth 14-B, WP Global Growth 14-E and Warburg Pincus Global Growth 14 Partners, the "WP Global Growth 14 Funds"). The equity interests of WPFSII Purchaser are held by (i) Warburg Pincus Financial Sector II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II LP"), (ii) Warburg Pincus Financial Sector II-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II-E"), and (iii) Warburg Pincus Financial Sector Partners II (Cayman), L.P., (continued on footnote 5)

F5 · ownership.nature: (continued from footnote 4) a Cayman Islands exempted limited partnership ("WP Financial Sector Partners II" and, together with WP Financial Sector II LP and WP Financial Sector II-E, the "WP Financial Sector II Funds"). Warburg Pincus (Cayman) Global Growth 14 GP, L.P., a Cayman Islands exempted limited partnership ("WPGG Cayman 14 GP"), is the general partner of each of the WP Global Growth 14 Funds. Warburg Pincus (Cayman) Global Growth 14 GP LLC, a Delaware limited liability company ("WPGG Cayman 14 GP LLC"), is the general partner of WPGG Cayman 14 GP. Warburg Pincus (Cayman) Financial Sector II GP, L.P., a Cayman Islands exempted limited partnership ("WPFS Cayman II GP"), is the general partner of each of the WP Financial Sector II Funds. Warburg Pincus (Cayman) Financial Sector II GP LLC, a Delaware limited liability company ("WPFS Cayman II GP LLC"), is the general partner of WPFS Cayman II GP. (continued on footnote 6)

F6 · ownership.nature: (continued from footnote 5) Warburg Pincus Partners II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WPP II Cayman"), is the managing member of WPGG Cayman 14 GP LLC and WPFS Cayman II GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd., a Bermuda exempted company ("WP Bermuda GP"), is the general partner of WPP II Cayman. Warburg Pincus LLC, a New York limited liability company ("WP LLC" and, together with the WP Global Growth 14 Funds, the WP Financial Sector II Funds, WPGG Cayman 14 GP, WPGG Cayman 14 GP LLC, WPFS Cayman II GP, WPFS Cayman II GP LLC, WPP II Cayman and WP Bermuda GP, the "Reporting Persons" and each, a "Reporting Person"), is the manager of the WP Global Growth 14 Funds and WP Financial Sector II Funds. Investment and voting decisions with respect to the securities of the Issuer held by the Reporting Persons are made by a committee comprised of three or more individuals and all members (continued on footnote 7)

F7 · ownership.nature: (continued from footnote 6) of such committee disclaim beneficial ownership of the securities of the Issuer held by the Reporting Persons. Information with respect to each of the Reporting Persons is given solely by such Reporting Persons, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Pursuant to Rule 16a-1(a)(4) of the Exchange Act, each of the Reporting Persons, other than the Purchasers, herein states that this filing shall not be deemed an admission that it or he is the beneficial owner of any of the securities of the Issuer covered by this Statement. Each of the Reporting Persons disclaim their beneficial ownership of such securities except to the extent of its pecuniary interest therein.

SEC source: 0001999371-25-012976 · warburg_ownership.xml · nonDerivative · entry 1

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Warburg Pincus Private Equity XI-C, L.P. · CIK 0001550877 · Director · 10% owner

Warburg Pincus (Cayman) XI, L.P. · CIK 0001554853 · Director · 10% owner

Warburg Pincus XI-C, LLC · CIK 0001554852 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 61,822,952

F1 · shares: On September 5, 2025, certain of the Warburg Pincus Entities (as defined below) sold a total of 12,000,000 shares of Common Stock of Sotera Health Company (the "Issuer") in an underwritten public secondary offering (the "Offering").

F2 · balance_after: Following the Offering, consists of (i) 49,475,694 shares of Common Stock of the Issuer held by Bull Holdco L.P. ("Bull Holdco") and (iii) 12,347,258 shares of Common Stock of the Issuer held by Bull Co-Invest L.P., a Delaware limited partnership ("Bull Co-Invest").

F3 · ownership.nature: Warburg Pincus XI, L.P., a Delaware limited partnership ("WP XI GP"), is the general partner of each of (i) Warburg Pincus Private Equity XI, L.P. ("WP XI"), (ii)Warburg Pincus Private Equity XI-B, L.P. ("WP XI-B"), (iii) WP XI Partners, L.P. ("WP XI Partners") and (iv) Warburg Pincus XI Partners, L.P. ("Warburg Pincus XI Partners"). WP Global LLC ("WP Global"), is the general partner of WP XI GP. Warburg Pincus Partners II, L.P. ("WPP II"), is the managing member of WP Global.Warburg Pincus Partners GP LLC ("WPP GP LLC"), is the general partner of WPP II. Warburg Pincus & Co. ("WP"), is the managing member of WPP GP LLC.Warburg Pincus (Cayman) XI, L.P. ("WP XI Cayman GP"), is the general partner of Warburg Pincus Private Equity XI-C, L.P. ("WP XI-C" and, together with WP XI,WP XI-B, WP XI Partners and Warburg Pincus XI Partners, the "WP XI Funds").

F4 · ownership.nature: The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Entities."

F5 · ownership.nature: Each Warburg Pincus Entity disclaims beneficial ownership with respect to any shares of Common Stock of the Issuer, except to the extent of its pecuniary interest in such shares of Common Stock, if any. The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are directors-by-deputization solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Information with respect to each of the Warburg Pincus Entities is given solely by such Warburg Pincus Entity, and no Warburg Pincus Entity has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Entity.

F6 · ownership.nature: Warburg Pincus XI-C, LLC ("WP XI-C LLC"), is the general partner of WP XI Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman"), is the managing member of WP XI-C LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP"), is the general partner of WPP II Cayman. WP Bull Manager LLC ("WP Bull Manager"), is the general partner of Bull Co-Invest. WP is managing member of WP Bull Manager. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), is the manager of the WP XI Funds. The WP XI Funds share limited partnership ownership in Bull Holdco on a pro rata basis in accordance with their respective numbers of Contributed Shares.

SEC source: 0001140361-25-034475 · form4.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

WARBURG PINCUS FINANCIAL SECTOR II PARTNERS (CAYMAN), L.P. · CIK 0002003367 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP, L.P. · CIK 0002003345 · Director

WARBURG PINCUS (CAYMAN) GLOBAL GROWTH 14 GP LLC · CIK 0002003491 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP, L.P. · CIK 0002003513 · Director

WARBURG PINCUS (CAYMAN) FINANCIAL SECTOR II GP LLC · CIK 0002003512 · Director

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director

WARBURG PINCUS FINANCIAL SECTOR II-E (CAYMAN), L.P. · CIK 0002003518 · Director

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: 4,297,470

F1 · security: Each share of NVCE Stock automatically converts into one share of common stock, par value $0.01 per share, of the Issuer, subject to certain adjustments, upon certain sales or transfers.

F2 · price: Reflects the sale of 4,500,000 shares of NVCE Stock by the Purchasers (as defined in footnote 3) at a price per share of $16.38 pursuant to Rule 144 under the Securities Act of 1933, as amended.

F3 · ownership.nature: Reflects securities held directly by (i) WP Clipper GG 14 L.P., a Cayman Islands exempted company with limited liability ("WPGG14 Purchaser") and (ii) WP Clipper FS II L.P., a Cayman Islands exempted company with limited liability ("WPFSII Purchaser" and , together with WPGG14 Purchaser, the "Purchasers"). The equity interests of WPGG14 Purchaser are held by (i) Warburg Pincus (Callisto) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Callisto 14"), (ii) Warburg Pincus (Europa) Global Growth 14 (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Europa 14"), (iii) Warburg Pincus Global Growth 14-B (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-B"), (iv) Warburg Pincus Global Growth 14-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14-E"), (continued on footnote 4)

F4 · ownership.nature: (continued from footnote 3) (v) Warburg Pincus Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("Warburg Pincus Global Growth 14 Partners"), and (vi) WP Global Growth 14 Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Global Growth 14 Partners" and, together with WP Callisto 14, WP Europa 14, WP Global Growth 14-B, WP Global Growth 14-E and Warburg Pincus Global Growth 14 Partners, the "WP Global Growth 14 Funds"). The equity interests of WPFSII Purchaser are held by (i) Warburg Pincus Financial Sector II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II LP"), (ii) Warburg Pincus Financial Sector II-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP Financial Sector II-E"), and (iii) Warburg Pincus Financial Sector Partners II (Cayman), L.P., (continued on footnote 5)

F5 · ownership.nature: (continued from footnote 4) a Cayman Islands exempted limited partnership ("WP Financial Sector Partners II" and, together with WP Financial Sector II LP and WP Financial Sector II-E, the "WP Financial Sector II Funds"). Warburg Pincus (Cayman) Global Growth 14 GP, L.P., a Cayman Islands exempted limited partnership ("WPGG Cayman 14 GP"), is the general partner of each of the WP Global Growth 14 Funds. Warburg Pincus (Cayman) Global Growth 14 GP LLC, a Delaware limited liability company ("WPGG Cayman 14 GP LLC"), is the general partner of WPGG Cayman 14 GP. Warburg Pincus (Cayman) Financial Sector II GP, L.P., a Cayman Islands exempted limited partnership ("WPFS Cayman II GP"), is the general partner of each of the WP Financial Sector II Funds. Warburg Pincus (Cayman) Financial Sector II GP LLC, a Delaware limited liability company ("WPFS Cayman II GP LLC"), is the general partner of WPFS Cayman II GP. (continued on footnote 6)

F6 · ownership.nature: (continued from footnote 5) Warburg Pincus Partners II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WPP II Cayman"), is the managing member of WPGG Cayman 14 GP LLC and WPFS Cayman II GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd., a Bermuda exempted company ("WP Bermuda GP"), is the general partner of WPP II Cayman. Warburg Pincus LLC, a New York limited liability company ("WP LLC" and, together with the WP Global Growth 14 Funds, the WP Financial Sector II Funds, WPGG Cayman 14 GP, WPGG Cayman 14 GP LLC, WPFS Cayman II GP, WPFS Cayman II GP LLC, WPP II Cayman and WP Bermuda GP, the "Reporting Persons" and each, a "Reporting Person"), is the manager of the WP Global Growth 14 Funds and WP Financial Sector II Funds. Investment and voting decisions with respect to the securities of the Issuer held by the Reporting Persons are made by a committee comprised of three or more individuals and all members (continued on footnote 7)

F7 · ownership.nature: (continued from footnote 6) of such committee disclaim beneficial ownership of the securities of the Issuer held by the Reporting Persons. Information with respect to each of the Reporting Persons is given solely by such Reporting Persons, and no Reporting Person has responsibility for the accuracy or completeness of information supplied by another Reporting Person. Pursuant to Rule 16a-1(a)(4) of the Exchange Act, each of the Reporting Persons, other than the Purchasers, herein states that this filing shall not be deemed an admission that it or he is the beneficial owner of any of the securities of the Issuer covered by this Statement. Each of the Reporting Persons disclaim their beneficial ownership of such securities except to the extent of its pecuniary interest therein.

SEC source: 0000950170-24-127049 · ownership.xml · nonDerivative · entry 3

WARBURG PINCUS LLC · CIK 0001162870 · Former 10% Owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Former 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

F4 · price: This amount represents a price to the underwriter of $29.11 per share of Class A Common Stock. The underwriter may offer the shares of Class A Common Stock from time to time in one or more transactions on the NYSE, in the over-the-counter market or through negotiated transactions at market prices or at negotiated prices.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000950170-24-127049 · ownership.xml · nonDerivative · entry 2

WARBURG PINCUS LLC · CIK 0001162870 · Former 10% Owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Former 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: 3,103,450

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: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000950170-24-127049 · ownership.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Former 10% Owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Former 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: 6,088,609

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 · security: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F1 · price: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0001999371-24-011716 · warburg_ownership.xml · nonDerivative · entry 1

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Warburg Pincus Private Equity XI-C, L.P. · CIK 0001550877 · Director · 10% owner

Warburg Pincus (Cayman) XI, L.P. · CIK 0001554853 · Director · 10% owner

Warburg Pincus XI-C, LLC · CIK 0001554852 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 73,822,952

F1 · shares: On September 6, 2024, certain of the Warburg Pincus Entities (as defined below) sold a total of 15,000,000 shares of Common Stock of Sotera Health Company (the "Issuer") in an underwritten public secondary offering (the "Offering").

F2 · balance_after: Following the Offering, consists of (i) 59,079,058 shares of Common Stock of the Issuer held by Bull Holdco L.P. ("Bull Holdco") and (iii) 14,743,894 shares of Common Stock of the Issuer held by Bull Co-Invest L.P., a Delaware limited partnership ("Bull Co-Invest").

F3 · ownership.nature: Warburg Pincus XI, L.P., a Delaware limited partnership ("WP XI GP"), is the general partner of each of (i) Warburg Pincus Private Equity XI, L.P. ("WP XI"), (ii)Warburg Pincus Private Equity XI-B, L.P. ("WP XI-B"), (iii) WP XI Partners, L.P. ("WP XI Partners") and (iv) Warburg Pincus XI Partners, L.P. ("Warburg Pincus XI Partners"). WP Global LLC ("WP Global"), is the general partner of WP XI GP. Warburg Pincus Partners II, L.P. ("WPP II"), is the managing member of WP Global.Warburg Pincus Partners GP LLC ("WPP GP LLC"), is the general partner of WPP II. Warburg Pincus & Co. ("WP"), is the managing member of WPP GP LLC.Warburg Pincus (Cayman) XI, L.P. ("WP XI Cayman GP"), is the general partner of Warburg Pincus Private Equity XI-C, L.P. ("WP XI-C" and, together with WP XI,WP XI-B, WP XI Partners and Warburg Pincus XI Partners, the "WP XI Funds").

F4 · ownership.nature: The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Entities."

F5 · ownership.nature: Each Warburg Pincus Entity disclaims beneficial ownership with respect to any shares of Common Stock of the Issuer, except to the extent of its pecuniary interest in such shares of Common Stock, if any. The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are directors-by-deputization solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Information with respect to each of the Warburg Pincus Entities is given solely by such Warburg Pincus Entity, and no Warburg Pincus Entity has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Entity.

F6 · ownership.nature: Warburg Pincus XI-C, LLC ("WP XI-C LLC"), is the general partner of WP XI Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman"), is the managing member of WP XI-C LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP"), is the general partner of WPP II Cayman. WP Bull Manager LLC ("WP Bull Manager"), is the general partner of Bull Co-Invest. WP is managing member of WP Bull Manager. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), is the manager of the WP XI Funds. The WP XI Funds share limited partnership ownership in Bull Holdco on a pro rata basis in accordance with their respective numbers of Contributed Shares.

SEC source: 0000950170-24-097346 · ownership.xml · nonDerivative · entry 1

Warburg Pincus (Cayman) Global Growth GP LLC · CIK 0001813785 · See remarks.

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · See remarks.

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · See remarks.

WARBURG PINCUS LLC · CIK 0001162870 · See remarks.

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,390,687

F1 · price: The shares of common stock of Viasat, Inc. (the "Issuer"), par value $0.0001 per share (the "Common Stock"), were sold in a block sale at a per share price of $19.90.

F2 · ownership.direct: Reflects Common Stock directly held by WP Triton Co-Invest, L.P., a Cayman Islands exempted limited partnership ("WP Triton Co-Invest"). By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), Warburg Pincus (Callisto-A) Global Growth (Cayman), L.P., Warburg Pincus (Europa) Global Growth (Cayman), L.P., Warburg Pincus Global Growth-B (Cayman), L.P., Warburg Pincus Global Growth-E (Cayman), L.P., Warburg Pincus Global Growth Partners (Cayman), L.P., and WP Global Growth Partners (Cayman), L.P. (collectively, the "WP Global Growth Funds"), (Continued in Footnote 3)

F3 · ownership.direct: each a Cayman Islands exempted limited partnership; Warburg Pincus (Cayman) Global Growth GP, L.P., a Cayman Islands exempted limited partnership ("WPGG Cayman GP") and the general partner of each of WP Triton Co-Invest, WP Triton Investment, L.P. and each of the WP Global Growth Funds; Warburg Pincus (Cayman) Global Growth GP LLC, a Delaware limited liability company ("WPGG Cayman GP LLC") and the general partner of WPGG Cayman GP; Warburg Pincus Partners II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WPP II Cayman") and the managing member of WPGG Cayman GP LLC; Warburg Pincus (Bermuda) Private Equity GP Ltd., a Bermuda exempted company ("WP Bermuda GP") and the general partner of WPP II Cayman; (Continued in Footnote 4)

F4 · ownership.direct: Warburg Pincus LLC, a New York limited liability company ("WP LLC") that manages the WP Global Growth Funds; and WP Triton Investment, L.P., a Cayman Islands exempted limited partnership, may be deemed to be the beneficial owner of the shares of Common Stock held by WP Triton Co-Invest. The parties listed above are collectively referred to as the "Warburg Pincus Reporting Persons." Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Persons, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person. Pursuant to Rule 16a-1(a)(4) of the Exchange Act, each of the Warburg Pincus Reporting Persons, other than WP Triton Co-Invest, herein states that this filing shall not be deemed an admission that it or he is the beneficial owner of any of the shares of Common Stock covered by this report.

F5 · ownership.direct: (Continued from footnote 4) Each of the Warburg Pincus Reporting Persons disclaims their beneficial ownership of such shares of Common Stock except to the extent of its or his pecuniary interest therein.

F6 · ownership.direct: Due to limitations of the electronic filing system certain Warburg Pincus Reporting Persons are filing a separate Form 4.

SEC source: 0000950170-24-095699 · ownership.xml · nonDerivative · entry 3

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 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

F4 · security: The reported shares of Class A common stock were sold by WP Holdco pursuant to Rule 144 under the Securities Act of 1933, as amended.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000950170-24-095699 · ownership.xml · nonDerivative · entry 2

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 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: 9,000,000

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: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000950170-24-095699 · ownership.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 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: 9,192,059

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 · security: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F1 · price: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000950170-24-072575 · ownership.xml · nonDerivative · entry 3

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · 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

F4 · price: This amount represents a price to the underwriter of $19.71 per share of Class A Common Stock. The underwriter may offer the shares of Class A Common Stock from time to time in one or more transactions on the NYSE, in the over-the-counter market or through negotiated transactions at market prices or at negotiated prices.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000950170-24-072575 · ownership.xml · nonDerivative · entry 2

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · 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: 7,000,000

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: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000950170-24-072575 · ownership.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · 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: 18,192,059

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 · security: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F1 · price: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0001999371-24-003176 · sotera_form4-030624.xml · nonDerivative · entry 1

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Warburg Pincus Private Equity XI-C, L.P. · CIK 0001550877 · Director · 10% owner

Warburg Pincus (Cayman) XI, L.P. · CIK 0001554853 · Director · 10% owner

Warburg Pincus XI-C, LLC · CIK 0001554852 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus Partners GP LLC · CIK 0001621224 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 88,822,952

F1 · shares: On March 4, 2024, certain of the Warburg Pincus Entities (as defined below) sold a total of 16,594,363 shares of Common Stock of Sotera Health Company (the "Issuer") in an underwritten public secondary offering (the "Offering").

F2 · balance_after: Following the Offering, consists of (i) 71,083,263 shares of Common Stock of the Issuer held by Bull Holdco L.P. ("Bull Holdco") and (iii) 17,739,689 shares of Common Stock of the Issuer held by Bull Co-Invest L.P., a Delaware limited partnership ("Bull Co-Invest").

F3 · ownership.nature: Warburg Pincus XI, L.P., a Delaware limited partnership ("WP XI GP"), is the general partner of each of (i) Warburg Pincus Private Equity XI, L.P. ("WP XI"), (ii)Warburg Pincus Private Equity XI-B, L.P. ("WP XI-B"), (iii) WP XI Partners, L.P. ("WP XI Partners") and (iv) Warburg Pincus XI Partners, L.P. ("Warburg Pincus XI Partners"). WP Global LLC ("WP Global"), is the general partner of WP XI GP. Warburg Pincus Partners II, L.P. ("WPP II"), is the managing member of WP Global.Warburg Pincus Partners GP LLC ("WPP GP LLC"), is the general partner of WPP II. Warburg Pincus & Co. ("WP"), is the managing member of WPP GP LLC.Warburg Pincus (Cayman) XI, L.P. ("WP XI Cayman GP"), is the general partner of Warburg Pincus Private Equity XI-C, L.P. ("WP XI-C" and, together with WP XI,WP XI-B, WP XI Partners and Warburg Pincus XI Partners, the "WP XI Funds").

F4 · ownership.nature: The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Entities."

F5 · ownership.nature: Each Warburg Pincus Entity disclaims beneficial ownership with respect to any shares of Common Stock of the Issuer, except to the extent of its pecuniary interest in such shares of Common Stock, if any. The WP XI Funds, Bull Co-Invest, Bull Holdco, WP Global, WPP II, WPP GP LLC, WP XI Cayman GP, WP XI-C LLC, WPP II Cayman, WP Bermuda GP, WP Bull Manager, WP LLC and WP are directors-by-deputization solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Information with respect to each of the Warburg Pincus Entities is given solely by such Warburg Pincus Entity, and no Warburg Pincus Entity has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Entity.

F6 · ownership.nature: Warburg Pincus XI-C, LLC ("WP XI-C LLC"), is the general partner of WP XI Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman"), is the managing member of WP XI-C LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP"), is the general partner of WPP II Cayman. WP Bull Manager LLC ("WP Bull Manager"), is the general partner of Bull Co-Invest. WP is managing member of WP Bull Manager. Warburg Pincus LLC, a New York limited liability company ("WP LLC"), is the manager of the WP XI Funds. The WP XI Funds share limited partnership ownership in Bull Holdco on a pro rata basis in accordance with their respective numbers of Contributed Shares.

SEC source: 0000899243-23-020546 · doc4.xml · nonDerivative · entry 3

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · 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

F4 · price: This amount represents a price to the underwriter of $19.75 per share of Class A Common Stock. The underwriter may offer the shares of Class A Common Stock from time to time in one or more transactions on the NYSE, in the over-the-counter market or through negotiated transactions at market prices or at negotiated prices.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000899243-23-020546 · doc4.xml · nonDerivative · entry 2

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · 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: 3,689,812

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: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000899243-23-020546 · doc4.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · 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: 25,192,059

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 · security: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F1 · price: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F2 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F3 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000899243-23-020323 · doc4.xml · nonDerivative · entry 3

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · 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

F2 · price: This amount represents a public offering price of $17.50 per share of Class A Common Stock less an underwriting discount of $0.19 per share for shares sold in an underwritten public offering.

F3 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F4 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000899243-23-020323 · doc4.xml · nonDerivative · entry 2

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · 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: 4,340,955

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: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F3 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F4 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000899243-23-020323 · doc4.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · 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: 28,881,871

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 · security: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F1 · price: Upon the earlier of (i) the date that affiliates of Welsh, Carson, Anderson & Stowe own less than 5% of the Issuer's common stock and (ii) the seventh anniversary of the closing of the Issuer's initial public offering, each share of Class D Common Stock will automatically convert into a share of Class A Common Stock.

F3 · ownership.nature: Reflects securities held directly by WP CA Holdco, L.P. ("WP Holdco"). The general partner of WP Holdco is WP CA Holdco GP, LLC ("WP Holdco GP"). The managing members of WP Holdco GP are Warburg Pincus (Callisto) Global Growth (Cayman), L.P. ("WP Callisto") and Warburg Pincus Financial Sector (Cayman), L.P. ("WP FS," and together with WP Callisto, the "Holdco GP Managers"). WP LLC is the manager of the Holdco GP Managers. Warburg Pincus (Cayman) Global Growth GP, L.P. ("WP GG Cayman GP") is the general partner of WP Callisto. Warburg Pincus (Cayman) Financial Sector GP, L.P. ("WP FS Cayman GP") is the general partner of WP FS. Warburg Pincus (Cayman) Global Growth GP LLC ("WP GG Cayman GP LLC") is the general partner of WP GG Cayman GP.

F4 · ownership.nature: Warburg Pincus (Cayman) Financial Sector GP LLC ("WP FS Cayman GP LLC") is the general partner of WP FS Cayman GP. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of each of WP GG Cayman GP LLC and WP FS Cayman GP LLC. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of WPP II Cayman. Investment and voting decisions with respect to the Issuer's shares held by WP Holdco are made by a committee comprised of three or more individuals and all members of such committee disclaim beneficial ownership of the Issuer's shares.

SEC source: 0000899243-23-008322 · doc4.xml · derivative · entry 1

Warburg Pincus Capital Corp I-A Sponsor, L.P. · CIK 0001836077 · Director · 10% owner

Warburg Pincus Capital Corp GP LLC · CIK 0001836078 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus Partners II Holdings (Cayman), L.P. · CIK 0001894856 · Director · 10% owner

WPP II Administrative (Cayman), LLC · CIK 0001894857 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1

Underlying: Class A ordinary shares · 6,980,543 shares

Expires not disclosed

F1 · derivative.exercise_price: The Class B ordinary shares would have automatically converted into Class A ordinary shares of the Issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · shares: The reporting person surrendered the reported securities for no consideration and, upon effectiveness of the Issuer's delisting and de-registration, will have no further Section 16 reporting obligations.

F2 · price: The reporting person surrendered the reported securities for no consideration and, upon effectiveness of the Issuer's delisting and de-registration, will have no further Section 16 reporting obligations.

F1 · derivative.exercise_date: The Class B ordinary shares would have automatically converted into Class A ordinary shares of the Issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F1 · derivative.expiration_date: The Class B ordinary shares would have automatically converted into Class A ordinary shares of the Issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

SEC source: 0000899243-23-008334 · doc4.xml · derivative · entry 1

Warburg Pincus Capital Corp I-B Sponsor, L.P. · CIK 0001836076 · Director · 10% owner

Warburg Pincus Capital Corp GP LLC · CIK 0001836078 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1

Underlying: Class A ordinary shares · 13,613,749 shares

Expires not disclosed

F1 · derivative.exercise_price: The Class B ordinary shares would have automatically converted into Class A ordinary shares of the Issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · shares: The reporting person surrendered the reported securities for no consideration and, upon effectiveness of the Issuer's delisting and de-registration, will have no further Section 16 reporting obligations.

F2 · price: The reporting person surrendered the reported securities for no consideration and, upon effectiveness of the Issuer's delisting and de-registration, will have no further Section 16 reporting obligations.

F1 · derivative.exercise_date: The Class B ordinary shares would have automatically converted into Class A ordinary shares of the Issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F1 · derivative.expiration_date: The Class B ordinary shares would have automatically converted into Class A ordinary shares of the Issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

SEC source: 0000899243-22-006844 · doc4.xml · derivative · entry 1

Warburg Pincus Capital Corp I-A Sponsor, L.P. · CIK 0001836077 · Director · 10% owner

Warburg Pincus Capital Corp GP LLC · CIK 0001836078 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus Partners II Holdings (Cayman), L.P. · CIK 0001894856 · Director · 10% owner

WPP II Administrative (Cayman), LLC · CIK 0001894857 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,980,544

Underlying: Class A ordinary shares · 35,000 shares

Expires not disclosed

F1 · derivative.exercise_price: As described in the issuer's registration statement on Form S-1 (File No. 333-253210) under the heading "Description of Securities -- Founder Shares", the Class B ordinary shares, par value $0.0001 per share (the "Class B Shares"), of the issuer will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · price: The reporting person is controlled by Warburg Pincus Capital Corporation GP LLC ("GP"), its general partner. Warburg Pincus Partners II (Cayman), L.P. ("LP") is the managing member of GP and may be deemed to have or share beneficial ownership of the Class B Shares reported herein. Warburg Pincus Partners II Holdings (Cayman), L.P. ("WPP II Holdings") is a limited partner of LP and may be deemed to have or share beneficial ownership of the Class B Shares reported herein. WPP II Administrative (Cayman), LLC ("WPP II Administrative") is the general partner of WPP II Holdings and may be deemed to have or share beneficial ownership of the Class B Shares reported herein. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of LP and WPP II Administrative and may be deemed to have or share beneficial ownership of the Class B Shares reported herein.

F1 · derivative.exercise_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253210) under the heading "Description of Securities -- Founder Shares", the Class B ordinary shares, par value $0.0001 per share (the "Class B Shares"), of the issuer will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F1 · derivative.expiration_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253210) under the heading "Description of Securities -- Founder Shares", the Class B ordinary shares, par value $0.0001 per share (the "Class B Shares"), of the issuer will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · ownership.direct: The reporting person is controlled by Warburg Pincus Capital Corporation GP LLC ("GP"), its general partner. Warburg Pincus Partners II (Cayman), L.P. ("LP") is the managing member of GP and may be deemed to have or share beneficial ownership of the Class B Shares reported herein. Warburg Pincus Partners II Holdings (Cayman), L.P. ("WPP II Holdings") is a limited partner of LP and may be deemed to have or share beneficial ownership of the Class B Shares reported herein. WPP II Administrative (Cayman), LLC ("WPP II Administrative") is the general partner of WPP II Holdings and may be deemed to have or share beneficial ownership of the Class B Shares reported herein. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of LP and WPP II Administrative and may be deemed to have or share beneficial ownership of the Class B Shares reported herein.

SEC source: 0000899243-21-034249 · doc4.xml · derivative · entry 1

Warburg Pincus Capital Corp I-B Sponsor, L.P. · CIK 0001836076 · Director · 10% owner

Warburg Pincus Capital Corp GP LLC · CIK 0001836078 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,613,750

Underlying: Class A ordinary shares · 35,000 shares

Expires not disclosed

F1 · derivative.exercise_price: As described in the issuer's registration statement on Form S-1 (File No. 333-253212) under the heading "Description of Securities -- Founder Shares", the Class B ordinary shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · price: The reporting person is controlled by Warburg Pincus Capital Corporation GP LLC ("GP"), its general partner. Warburg Pincus Partners II (Cayman), L.P. ("LP") is the managing member of GP and may be deemed to have or share beneficial ownership of the Class B Shares. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of LP and may be deemed to have or share beneficial ownership of the Class B Shares.

F1 · derivative.exercise_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253212) under the heading "Description of Securities -- Founder Shares", the Class B ordinary shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F1 · derivative.expiration_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253212) under the heading "Description of Securities -- Founder Shares", the Class B ordinary shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · ownership.direct: The reporting person is controlled by Warburg Pincus Capital Corporation GP LLC ("GP"), its general partner. Warburg Pincus Partners II (Cayman), L.P. ("LP") is the managing member of GP and may be deemed to have or share beneficial ownership of the Class B Shares. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of LP and may be deemed to have or share beneficial ownership of the Class B Shares.

SEC source: 0000899243-21-027804 · doc4.xml · derivative · entry 1

Warburg Pincus Capital Corp I-A Sponsor, L.P. · CIK 0001836077 · Director · 10% owner

Warburg Pincus Capital Corp GP LLC · CIK 0001836078 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,015,544

Underlying: Class A ordinary shares · 35,000 shares

Expires not disclosed

F1 · derivative.exercise_price: As described in the issuer's registration statement on Form S-1 (File No. 333-253210) under the heading "Description of Securities -- Founder Shares", the Class B ordinary shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · price: The reporting person is controlled by Warburg Pincus Capital Corporation GP LLC ("GP"), its general partner. Warburg Pincus Partners II (Cayman), L.P. ("LP") is the managing member of GP and may be deemed to have or share beneficial ownership of the Class B Shares. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of LP and may be deemed to have or share beneficial ownership of the Class B Shares.

F1 · derivative.exercise_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253210) under the heading "Description of Securities -- Founder Shares", the Class B ordinary shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F1 · derivative.expiration_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253210) under the heading "Description of Securities -- Founder Shares", the Class B ordinary shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · ownership.direct: The reporting person is controlled by Warburg Pincus Capital Corporation GP LLC ("GP"), its general partner. Warburg Pincus Partners II (Cayman), L.P. ("LP") is the managing member of GP and may be deemed to have or share beneficial ownership of the Class B Shares. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of LP and may be deemed to have or share beneficial ownership of the Class B Shares.

SEC source: 0001209191-21-045736 · doc4.xml · nonDerivative · entry 1

WP Windstar Investments Ltd · CIK 0001848332 · See Remarks

Warburg Pincus Financial Sector-D (Cayman), L.P. · CIK 0001813789 · See Remarks

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · See Remarks

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · See Remarks

WARBURG PINCUS LLC · CIK 0001162870 · See Remarks

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: On July 1, 2021, in connection with the acquisition of Watford Holdings Ltd., a Bermuda company limited by shares (the "Issuer"), by Greysbridge Holdings Ltd., a Bermuda exempted company limited by shares ("Greysbridge Holdings"), WP Windstar Investments Ltd, a Cayman Islands exempted company with limited liability ("WP Windstar"), transferred 230,400 common shares, par value $0.01 per share, of the Issuer (the "common shares") to Greysbridge Holdings in a transaction valued at $35.00 per share. Following consummation of the acquisition and certain related transactions, the Issuer is a wholly owned subsidiary of Greysbridge Holdings and the Warburg Pincus Reporting Persons (defined below) indirectly own, in the aggregate, 30% of Greysbridge Holdings.

F2 · ownership.direct: By reason of the provisions of Rule 16a-1 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), Warburg Pincus (Callisto) Global Growth (Cayman), L.P., Warburg Pincus (Europa) Global Growth (Cayman), L.P., Warburg Pincus Global Growth-B (Cayman), L.P., Warburg Pincus Global Growth-E (Cayman), L.P., Warburg Pincus Global Growth Partners (Cayman), L.P., and WP Global Growth Partners (Cayman), L.P. (collectively, the "WP Global Growth Funds") and Warburg Pincus Financial Sector (Cayman), L.P., Warburg Pincus Financial Sector-D (Cayman), L.P., and Warburg Pincus Financial Sector Partners (Cayman), L.P. (collectively, the "WP Financial Sector Funds"), (Continued in Footnote 3)

F3 · ownership.direct: each a Cayman Islands exempted company with limited liability that holds the equity interests of WP Windstar; Warburg Pincus (Cayman) Global Growth GP, L.P., a Cayman Islands exempted limited partnership ("WPGG Cayman GP") and the general partner of each of the WP Global Growth Funds; Warburg Pincus (Cayman) Global Growth GP LLC, a Delaware limited liability company ("WPGG Cayman GP LLC") and the general partner of WPGG Cayman GP; Warburg Pincus (Cayman) Financial Sector GP, L.P., a Cayman Islands exempted limited partnership ("WPFS Cayman GP") and the general partner of each of the WP Financial Sector Funds; Warburg Pincus (Cayman) Financial Sector GP LLC, a Delaware limited liability company ("WPFS Cayman GP LLC") and the general partner of WPFS Cayman GP; (Continued in Footnote 4)

F4 · ownership.direct: Warburg Pincus Partners II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WPP II Cayman") and the managing member of WPGG Cayman GP LLC and WPFS Cayman GP LLC; Warburg Pincus (Bermuda) Private Equity GP Ltd., a Bermuda exempted company ("WP Bermuda GP") and the general partner of WPP II Cayman; and Warburg Pincus LLC, a New York limited liability company ("WP LLC") that manages the WP Global Growth Funds and WP Financial Sector Funds, may be deemed to be the beneficial owner of the common shares held by WP Windstar. Parties listed above are collectively referred to as the "Warburg Pincus Reporting Persons". (Continued in Footnote 5)

F5 · ownership.direct: Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Persons, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person. Pursuant to Rule 16a-1(a)(4) of the Exchange Act, each of the Warburg Pincus Reporting Persons, other than WP Windstar, herein states that this filing shall not be deemed an admission that it or he is the beneficial owner of any of the common shares covered by this Statement. Each of the Warburg Pincus Reporting Persons disclaims beneficial ownership of the common shares, except to the extent of its or his pecuniary interest in such common shares. This filing constitutes a Form 4 exit filing for the Warburg Pincus Reporting Persons.

SEC source: 0000899243-21-025323 · doc4.xml · derivative · entry 1

Warburg Pincus Capital Corp I-B Sponsor, L.P. · CIK 0001836076 · Director · 10% owner

Warburg Pincus Capital Corp GP LLC · CIK 0001836078 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,648,750

Underlying: Class A ordinary shares · 35,000 shares

Expires not disclosed

F1 · derivative.exercise_price: As described in the issuer's registration statement on Form S-1 (File No. 333-253212) under the heading "Description of Securities -- Founder Shares", the Class B shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · price: The reporting person is controlled by Warburg Pincus Capital Corporation GP LLC ("GP"), its general partner. Warburg Pincus Partners II (Cayman), L.P. ("LP") is the managing member of GP and may be deemed to have or share beneficial ownership of the Class B Shares. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of LP and may be deemed to have or share beneficial ownership of the Class B Shares.

F1 · derivative.exercise_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253212) under the heading "Description of Securities -- Founder Shares", the Class B shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F1 · derivative.expiration_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253212) under the heading "Description of Securities -- Founder Shares", the Class B shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · ownership.direct: The reporting person is controlled by Warburg Pincus Capital Corporation GP LLC ("GP"), its general partner. Warburg Pincus Partners II (Cayman), L.P. ("LP") is the managing member of GP and may be deemed to have or share beneficial ownership of the Class B Shares. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of LP and may be deemed to have or share beneficial ownership of the Class B Shares.

SEC source: 0000899243-21-016453 · doc4.xml · derivative · entry 1

Warburg Pincus Capital Corp I-B Sponsor, L.P. · CIK 0001836076 · Director · 10% owner

Warburg Pincus Capital Corp GP LLC · CIK 0001836078 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,683,750

Underlying: Class A ordinary shares · 656,250 shares

Expires not disclosed

F1 · derivative.exercise_price: This Form 4 reflects the automatic surrender to the issuer of 656,250 of the issuer's Class B ordinary shares, par value $0.0001 per share (the "Class B shares"), for no consideration by the reporting person pursuant to contractual arrangements with the issuer, triggered by the expiration of the option of the underwriters of the issuer's initial public offering to purchase additional units.

F1 · kind: This Form 4 reflects the automatic surrender to the issuer of 656,250 of the issuer's Class B ordinary shares, par value $0.0001 per share (the "Class B shares"), for no consideration by the reporting person pursuant to contractual arrangements with the issuer, triggered by the expiration of the option of the underwriters of the issuer's initial public offering to purchase additional units.

F2 · price: As described in the issuer's registration statement on Form S-1 (File No. 333-253212) under the heading "Description of Securities -- Founder Shares", the Class B shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · derivative.exercise_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253212) under the heading "Description of Securities -- Founder Shares", the Class B shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · derivative.expiration_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253212) under the heading "Description of Securities -- Founder Shares", the Class B shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F3 · ownership.direct: The reporting person is controlled by Warburg Pincus Capital Corporation GP LLC ("GP"), its general partner. Warburg Pincus Partners II (Cayman), L.P. ("LP") is the managing member of GP and may be deemed to have or share beneficial ownership of the Class B Shares. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of LP and may be deemed to have or share beneficial ownership of the Class B Shares.

SEC source: 0000899243-21-016450 · doc4.xml · derivative · entry 1

Warburg Pincus Capital Corp I-A Sponsor, L.P. · CIK 0001836077 · Director · 10% owner

Warburg Pincus Capital Corp GP LLC · CIK 0001836078 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,050,544

Underlying: Class A ordinary shares · 101,956 shares

Expires not disclosed

F1 · derivative.exercise_price: This Form 4 reflects the automatic surrender to the issuer of 101,956 of the issuer's Class B ordinary shares, par value $0.0001 per share (the "Class B Shares"), for no consideration by the reporting person pursuant to contractual arrangements with the issuer, triggered by the expiration of the option of the underwriters of the issuer's initial public offering to purchase additional units.

F1 · kind: This Form 4 reflects the automatic surrender to the issuer of 101,956 of the issuer's Class B ordinary shares, par value $0.0001 per share (the "Class B Shares"), for no consideration by the reporting person pursuant to contractual arrangements with the issuer, triggered by the expiration of the option of the underwriters of the issuer's initial public offering to purchase additional units.

F2 · price: As described in the issuer's registration statement on Form S-1 (File No. 333-253210) under the heading "Description of Securities -- Founder Shares", the Class B shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · derivative.exercise_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253210) under the heading "Description of Securities -- Founder Shares", the Class B shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F2 · derivative.expiration_date: As described in the issuer's registration statement on Form S-1 (File No. 333-253210) under the heading "Description of Securities -- Founder Shares", the Class B shares will automatically convert into Class A ordinary shares, par value $0.0001 per share, of the issuer at the time of the issuer's initial business combination, on a one-for-one basis, subject to adjustment for share splits, share capitalizations, reorganizations, recapitalizations and the like, and certain anti-dilution rights and have no expiration date.

F3 · ownership.direct: The reporting person is controlled by Warburg Pincus Capital Corporation GP LLC ("GP"), its general partner. Warburg Pincus Partners II (Cayman), L.P. ("LP") is the managing member of GP and may be deemed to have or share beneficial ownership of the Class B Shares. Warburg Pincus (Bermuda) Private Equity GP Ltd. is the general partner of LP and may be deemed to have or share beneficial ownership of the Class B Shares.

SEC source: 0001387131-21-003871 · ownership.xml · nonDerivative · entry 1

WARBURG PINCUS & CO. · CIK 0000929408 · Director · 10% owner

Warburg Pincus Private Equity XI-C, L.P. · CIK 0001550877 · Director · 10% owner

Warburg Pincus (Cayman) XI, L.P. · CIK 0001554853 · Director · 10% owner

Warburg Pincus XI-C, LLC · CIK 0001554852 · Director · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director · 10% owner

WARBURG PINCUS LLC · CIK 0001162870 · Director · 10% owner

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 105,417,315

F1 · shares: On March 22, 2021, certain of the Warburg Pincus Entities (as defined below) sold a total of 13,512,582 shares of Common Stock of Sotera Health Company (the "Issuer") in an underwritten public secondary offering (the "Offering").

F2 · balance_after: Following the Offering, consists of (i) 84,093,443 shares of Common Stock of the Issuer held by Warburg Pincus Private Equity XI, L.P., Warburg Pincus XI Partners, L.P., WP XI Partners, L.P., Warburg Pincus Private Equity XI-B, L.P. (collectively, the "WP XI Funds"), (ii) 269,963 shares of Common Stock of the Issuer held by Warburg Pincus Private Equity XI-C, L.P. ("WP XI-C") and (iii) 21,053,909 shares of Common Stock of the Issuer held by Bull Co-Invest L.P., a Delaware limited partnership ("Bull Co-Invest").

F3 · ownership.nature: Warburg Pincus XI, L.P., a Delaware limited partnership ("WP XI LP"), is the general partner of the WP XI Funds. WP Global LLC ("WP Global"), is the general partner of WP XI LP. Warburg Pincus Partners II, L.P. ("WPP II") is the managing member of WP Global. Warburg Pincus Partners GP LLC ("WPP GP LLC") is the general partner of WPP II. Warburg Pincus & Co. ("WP") is the managing member of WPP GP LLC. Warburg Pincus (Cayman) XI, L.P. ("WP Cayman") is the general partner of WP XI-C. Warburg Pincus XI-C, LLC ("Warburg Pincus XI-C") is the general partner of WP Cayman. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the managing member of Warburg Pincus XI-C. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("Warburg Pincus (Bermuda)") is the general partner of WPP II Cayman. WP Bull Manager, LLC ("WP Bull Manager") is the general partner of Bull Co-Invest. WP is the managing member of WP Bull Manager, LLC.

F4 · ownership.nature: Warburg Pincus LLC ("WP LLC") is the manager of the WP XI Funds and WP XI-C. The WP XI Funds, Bull Co-Invest, WP XI-C, WP XI LP, WP Global, WPP II, WPP GP LLC, WP Cayman, Warburg Pincus XI-C, WPP II Cayman, Warburg Pincus (Bermuda), WP Bull Manager, WP LLC and WP are collectively referred to herein as the "Warburg Pincus Entities."

F5 · ownership.nature: Each Warburg Pincus Entity disclaims beneficial ownership with respect to any shares of Common Stock of the Issuer, except to the extent of its pecuniary interest in such shares of Common Stock, if any. The WP XI Funds, WP XI-C, Bull Co-Invest, WP XI LP, WP Global, WPP II, WPP GP LLC, WP, WP Cayman, WPP II Cayman, Warburg Pincus (Bermuda), Warburg Pincus XI-C and WP Bull Manager are directors-by-deputization solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Information with respect to each of the Warburg Pincus Entities is given solely by such Warburg Pincus Entity, and no Warburg Pincus Entity has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Entity.

SEC source: 0000899243-19-028789 · doc4.xml · derivative · entry 1

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · 10% owner

WP SemGroup Holdings L.P. · CIK 0001728684 · 10% owner

WP Cayman SemGroup Holdings L.P. · CIK 0001783661 · 10% owner

Warburg Pincus (Europa) Private Equity XII (Cayman), L.P. · CIK 0001722343 · 10% owner

Warburg Pincus (Cayman) XII, L.P. · CIK 0001722309 · 10% owner

Warburg Pincus (Cayman) XII GP LLC · CIK 0001722306 · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · 10% owner

KAYE CHARLES R · CIK 0001239318 · Director · 10% owner

Landy Joseph P. · CIK 0001220638 · Director · 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: 0

Underlying: Class A Common Stock, $0.01 Par Value · 10,051,574 shares

Expires not disclosed

F4 · derivative.exercise_price: On or after July 19, 2019 (the eighteen month anniversary of the issue date of the Series A Preferred), each share of Series A Preferred is convertible into such number of shares of class A common stock of the Company, par value $0.01 ("Common Stock"), as is equal to the accreted value of such share of Series A Preferred divided by a conversion price, initially $33.00 (subject to adjustment pursuant to the terms of the Series A Certificate of Designations).

F4 · price: On or after July 19, 2019 (the eighteen month anniversary of the issue date of the Series A Preferred), each share of Series A Preferred is convertible into such number of shares of class A common stock of the Company, par value $0.01 ("Common Stock"), as is equal to the accreted value of such share of Series A Preferred divided by a conversion price, initially $33.00 (subject to adjustment pursuant to the terms of the Series A Certificate of Designations).

F4 · derivative.expiration_date: On or after July 19, 2019 (the eighteen month anniversary of the issue date of the Series A Preferred), each share of Series A Preferred is convertible into such number of shares of class A common stock of the Company, par value $0.01 ("Common Stock"), as is equal to the accreted value of such share of Series A Preferred divided by a conversion price, initially $33.00 (subject to adjustment pursuant to the terms of the Series A Certificate of Designations).

F4 · derivative.underlying_shares: On or after July 19, 2019 (the eighteen month anniversary of the issue date of the Series A Preferred), each share of Series A Preferred is convertible into such number of shares of class A common stock of the Company, par value $0.01 ("Common Stock"), as is equal to the accreted value of such share of Series A Preferred divided by a conversion price, initially $33.00 (subject to adjustment pursuant to the terms of the Series A Certificate of Designations).

F1 · ownership.nature: Note: This "Exit" Form 4 is voluntarily filed to report solely that the Reporting Person is no longer a beneficial owner of any securities of the Issuer, as of December 5, 2019, and therefore is no longer subject to Section 16 reporting. The Reporting Person did not have any transactions in the Issuer's securities during the time that it was a Section 16 reporting person.

F2 · ownership.nature: This Form 3 is filed on behalf of WP SemGroup Holdings, L.P., a Delaware limited partnership ("WP SemGroup LP"), WP Cayman SemGroup Holdings, L.P., a Delaware limited partnership and general partner of WP SemGroup LP ("WP Cayman SemGroup LP"), Warburg Pincus (Europa) Private Equity XII (Cayman), L.P., a Cayman Islands exempted limited partnership and the general partner of WP Cayman SemGroup LP ("WP Europa PE XII LP"), Warburg Pincus (Cayman) XII, L.P., a Cayman Islands exempted limited partnership and the general partner of WP Europa PE XII LP ("WP Cayman XII LP"), Warburg Pincus (Cayman) XII GP LLC, a Delaware limited liability company and the general partner of WP Cayman XII LP ("WP Cayman XII GP LLC"), Warburg Pincus Partners II (Cayman), L.P., a Cayman Islands exempted limited partnership and sole member of WP Cayman XII GP LLC ("WPP II Cayman LP"),

F3 · ownership.nature: (continued from footnote 2) Warburg Pincus (Bermuda) Private Equity GP Ltd., a company registered in the Islands of Bermuda and general partner of WPP II Cayman LP ("WP Bermuda PE GP"), Charles R. Kaye and Joseph P. Landy. Messrs. Kaye and Landy are the sole Directors and Co-Chairmen of WP Bermuda PE GP.

SEC source: 0000899243-19-027059 · doc4.xml · nonDerivative · entry 1

Warburg Pincus (Cayman) XII, L.P. · CIK 0001722309 · 10% owner

Warburg Pincus (Cayman) XII GP LLC · CIK 0001722306 · 10% owner

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · 10% owner

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · 10% owner

WARBURG PINCUS LLC · CIK 0001162870 · 10% owner

KAYE CHARLES R · CIK 0001239318 · 10% owner

Landy Joseph P. · CIK 0001220638 · 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: 32,211,010

F1 · kind: On November 6, 2019, Cyren Ltd. (the "Issuer") consummated a rights offering and WP XII Investments (as defined below) acquired 4,624,277 ordinary shares, nominal value NIS 0.15 per share (the "Ordinary Shares"), of the Issuer in such offering.

F2 · ownership.nature: This Form 4 is being jointly filed by and on behalf of each of the following persons (each, a "Warburg Pincus Reporting Person"): (i) WP XII Investments B.V., a company incorporated in the Netherlands ("WP XII Investments"); (ii) WP XII Investments Cooperatief U.A., a company incorporated in the Netherlands ("WP XII Investments Cooperatief"); (iii) Warburg Pincus (Callisto) Private Equity XII (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP XII Callisto"); (iv) Warburg Pincus (Europa) Private Equity XII (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP XII Europa"); (v) Warburg Pincus (Ganymede) Private Equity XII (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP XII Ganymede"); (vi) Warburg Pincus Private Equity XII-B (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP XII-B"); (vii) Warburg Pincus Private Equity XII-D (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP XII-D");

F3 · ownership.nature: (Continued from Footnote 2) (viii) Warburg Pincus Private Equity XII-E (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP XII-E"); (ix) Warburg Pincus XII Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("Warburg Pincus XII Partners"); (x) WP XII Partners (Cayman), L.P., a Cayman Islands exempted limited partnership ("WP XII Partners", and together with WP XII Callisto, WP XII Europa, WP XII Ganymede, WP XII-B, WP XII-D, WP XII-E and Warburg Pincus XII Partners, the "WP XII Funds"); (xi) Warburg Pincus LLC, a New York limited liability company ("WP LLC"); (xii) Warburg Pincus (Cayman) XII, L.P., a Cayman Islands exempted limited partnership ("WP XII Cayman GP"); (xiii) Warburg Pincus (Cayman) XII GP LLC, a Delaware limited liability company ("WP XII Cayman GP LLC"); (xiv) Warburg Pincus Partners II (Cayman), L.P., a Cayman Islands exempted limited partnership ("WPP II Cayman");

F4 · ownership.nature: (Continued from Footnote 3) (xv) Warburg Pincus (Bermuda) Private Equity GP Ltd., a Bermuda exempted company ("WP Bermuda GP", and, together with WP XII Investments, WP XII Investments Cooperatief, the WP XII Funds, WP LLC, WP XII Cayman GP, WP XII Cayman GP LLC, WPP II Cayman and WP Bermuda GP, the "Warburg Entities"); (xvi) Charles R. Kaye; and (xvii) Joseph P. Landy.

F5 · ownership.nature: WP XII Investments is wholly owned by WP XII Investments Cooperatief, which is wholly owned by the WP XII Funds. WP LLC is the manager of the WP XII Funds and WP XII Cayman GP is the general partner of each of the WP XII Funds. WP XII Cayman GP LLC is the general partner of WP XII Cayman GP. WPP II Cayman is the sole member of WP XII Cayman GP LLC. WP Bermuda GP is the general partner of WPP II Cayman. Charles R. Kaye and Joseph P. Landy are the Co-Chairmen and sole Directors of WP Bermuda GP, and the Managing Members and Co-Chief Executive Officers of WP LLC, and may be deemed to control the Warburg Entities.

F6 · ownership.nature: Reflects 32,211,010 Ordinary Shares directly held by WP XII Investments.

F7 · ownership.nature: Each of Messrs. Kaye and Landy and each Warburg Entity disclaims beneficial ownership with respect to any ordinary shares of the Issuer, except to the extent of its indirect pecuniary interest in such ordinary shares. Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

SEC source: 0000903423-17-000690 · wp2wex.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director

WARBURG PINCUS (E&P) XI, L.P. · CIK 0001678774 · Director

WARBURG PINCUS (E&P) XI LLC · CIK 0001678784 · Director

WARBURG PINCUS PARTNERS (E&P) XI LLC · CIK 0001678783 · Director

Warburg Pincus Partners II (US), L.P. · CIK 0001658788 · Director

Warburg Pincus & Co US, LLC · CIK 0001635320 · Director

Warburg Pincus (Bermuda) XI, Ltd. · CIK 0001555712 · Director

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses.

Disclosed balance after: 0

F1 · acquired: This Form 4 is being filed in connection with the sale of shares (the "Sale") of Common Stock of WEX Inc. (the "Issuer") by Mustang HoldCo II LLC ("Mustang Holdco II").

F2 · acquired: The unitholders of Mustang Holdco II are Warburg Pincus Private Equity (Lexington) XI - A, L.P. ("WP XI Lexington-A"), WP (Lexington) Holdings II, L.P. ("WP Lexington II"), Warburg Pincus XI (Lexington) Partners - A, L.P. ("WP XI Lexington Partners-A"), Warburg Pincus XI (E&P) Partners - B, L.P. ("WP XI E&P Partners-B"), WP Mustang Co-Invest LLC ("WP Co-Invest LLC"), WP Mustang Co-Invest-B L.P. ("WP Co-Invest-B"), and WP Mustang Co-Invest-C L.P. ("WP Co-Invest-C").

F3 · acquired: WP Lexington II is the managing member of Mustang Holdco II. Warburg Pincus (E&P) XI, L.P. ("WP E&P XI GP") is (i) the general partner of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B, and (ii) the managing member of WP Co-Invest LLC. Warburg Pincus (E&P) XI LLC ("WP E&P XI LLC") is the general partner of WP E&P XI GP. Warburg Pincus Partners (E&P) XI LLC ("WPP E&P XI") is the sole member of WP E&P XI LLC. Warburg Pincus Partners II (US), L.P. ("WP Partners II US") is the managing member of WPP E&P XI. Warburg Pincus & Company US, LLC ("WP & Company US") is the general partner of WP Partners II US. Warburg Pincus LLC ("WP LLC") is the manager of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B.

F4 · acquired: Warburg Pincus (Bermuda) XI, Ltd. ("WP Bermuda XI") is the general partner of WP Co-Invest-B and WP Co-Invest-C. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the sole shareholder of WP Bermuda XI. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP") is the general partner of WPP II Cayman. Mustang Holdco II, WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, WP XI E&P Partners-B, WP Co-Invest LLC, WP Co-Invest-B, WP Co-Invest-C, WP E&P XI GP, WP E&P XI LLC, WPP E&P XI, WP Partners II US, WP & Company US, WP Bermuda XI, WPP II Cayman, WP Bermuda GP, and WP LLC are collectively referred to herein as the "Warburg Pincus Entities").

F5 · acquired: Charles R. Kaye and Joseph P. Landy each are the Managing Members of WP & Company US, the Co-Chairmen and sole Directors of WP Bermuda GP, and the Managing Members and Co-Chief Executive Officers of WP LLC and, as such, may be deemed to control each of the Warburg Pincus Entities. Messrs. Kaye and Landy disclaimed beneficial ownership of all shares of Common Stock of the Issuer held by the Warburg Pincus Entities. Messrs. Kaye and Landy together with the Warburg Pincus Entities are collectively referred to herein as the "Warburg Pincus Reporting Persons". Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

F6 · acquired: By reason of the provisions of Rule 16a-1 of the Exchange Act, prior to the date of the Sale, the Warburg Pincus Reporting Persons may have been deemed to be beneficial owners of the 177,207 shares of Common Stock of the Issuer held by Mustang Holdco II. The Warburg Pincus Reporting Persons disclaimed beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein. As of the date of this filing, this Form 4 shall not be deemed an admission that any reporting person or any other person referred to herein was a beneficial owner of any securities of the Issuer for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose, or that any reporting person or other person has an obligation to file this Form 4.

F7 · acquired: This filing constitutes a Form 4 exit filing for the Warburg Pincus Reporting Persons.

F1 · ownership.direct: This Form 4 is being filed in connection with the sale of shares (the "Sale") of Common Stock of WEX Inc. (the "Issuer") by Mustang HoldCo II LLC ("Mustang Holdco II").

F2 · ownership.direct: The unitholders of Mustang Holdco II are Warburg Pincus Private Equity (Lexington) XI - A, L.P. ("WP XI Lexington-A"), WP (Lexington) Holdings II, L.P. ("WP Lexington II"), Warburg Pincus XI (Lexington) Partners - A, L.P. ("WP XI Lexington Partners-A"), Warburg Pincus XI (E&P) Partners - B, L.P. ("WP XI E&P Partners-B"), WP Mustang Co-Invest LLC ("WP Co-Invest LLC"), WP Mustang Co-Invest-B L.P. ("WP Co-Invest-B"), and WP Mustang Co-Invest-C L.P. ("WP Co-Invest-C").

F3 · ownership.direct: WP Lexington II is the managing member of Mustang Holdco II. Warburg Pincus (E&P) XI, L.P. ("WP E&P XI GP") is (i) the general partner of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B, and (ii) the managing member of WP Co-Invest LLC. Warburg Pincus (E&P) XI LLC ("WP E&P XI LLC") is the general partner of WP E&P XI GP. Warburg Pincus Partners (E&P) XI LLC ("WPP E&P XI") is the sole member of WP E&P XI LLC. Warburg Pincus Partners II (US), L.P. ("WP Partners II US") is the managing member of WPP E&P XI. Warburg Pincus & Company US, LLC ("WP & Company US") is the general partner of WP Partners II US. Warburg Pincus LLC ("WP LLC") is the manager of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B.

F4 · ownership.direct: Warburg Pincus (Bermuda) XI, Ltd. ("WP Bermuda XI") is the general partner of WP Co-Invest-B and WP Co-Invest-C. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the sole shareholder of WP Bermuda XI. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP") is the general partner of WPP II Cayman. Mustang Holdco II, WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, WP XI E&P Partners-B, WP Co-Invest LLC, WP Co-Invest-B, WP Co-Invest-C, WP E&P XI GP, WP E&P XI LLC, WPP E&P XI, WP Partners II US, WP & Company US, WP Bermuda XI, WPP II Cayman, WP Bermuda GP, and WP LLC are collectively referred to herein as the "Warburg Pincus Entities").

F5 · ownership.direct: Charles R. Kaye and Joseph P. Landy each are the Managing Members of WP & Company US, the Co-Chairmen and sole Directors of WP Bermuda GP, and the Managing Members and Co-Chief Executive Officers of WP LLC and, as such, may be deemed to control each of the Warburg Pincus Entities. Messrs. Kaye and Landy disclaimed beneficial ownership of all shares of Common Stock of the Issuer held by the Warburg Pincus Entities. Messrs. Kaye and Landy together with the Warburg Pincus Entities are collectively referred to herein as the "Warburg Pincus Reporting Persons". Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

F6 · ownership.direct: By reason of the provisions of Rule 16a-1 of the Exchange Act, prior to the date of the Sale, the Warburg Pincus Reporting Persons may have been deemed to be beneficial owners of the 177,207 shares of Common Stock of the Issuer held by Mustang Holdco II. The Warburg Pincus Reporting Persons disclaimed beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein. As of the date of this filing, this Form 4 shall not be deemed an admission that any reporting person or any other person referred to herein was a beneficial owner of any securities of the Issuer for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose, or that any reporting person or other person has an obligation to file this Form 4.

F7 · ownership.direct: This filing constitutes a Form 4 exit filing for the Warburg Pincus Reporting Persons.

SEC source: 0000903423-17-000532 · wp2wex.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director

WARBURG PINCUS (E&P) XI, L.P. · CIK 0001678774 · Director

WARBURG PINCUS (E&P) XI LLC · CIK 0001678784 · Director

WARBURG PINCUS PARTNERS (E&P) XI LLC · CIK 0001678783 · Director

Warburg Pincus Partners II (US), L.P. · CIK 0001658788 · Director

Warburg Pincus & Co US, LLC · CIK 0001635320 · Director

Warburg Pincus (Bermuda) XI, Ltd. · CIK 0001555712 · Director

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses.

Disclosed balance after: 177,207

F1 · acquired: This Form 4 is being filed in connection with the sale of shares of Common Stock of WEX Inc. (the "Issuer") by Mustang HoldCo II LLC ("Mustang Holdco II").

F2 · acquired: The unitholders of Mustang Holdco II are Warburg Pincus Private Equity (Lexington) XI - A, L.P. ("WP XI Lexington-A"), WP (Lexington) Holdings II, L.P. ("WP Lexington II"), Warburg Pincus XI (Lexington) Partners - A, L.P. ("WP XI Lexington Partners-A"), Warburg Pincus XI (E&P) Partners - B, L.P. ("WP XI E&P Partners-B"), WP Mustang Co-Invest LLC ("WP Co-Invest LLC"), WP Mustang Co-Invest-B L.P. ("WP Co-Invest-B"), and WP Mustang Co-Invest-C L.P. ("WP Co-Invest-C").

F3 · acquired: WP Lexington II is the managing member of Mustang Holdco II. Warburg Pincus (E&P) XI, L.P. ("WP E&P XI GP") is (i) the general partner of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B, and (ii) the managing member of WP Co-Invest LLC. Warburg Pincus (E&P) XI LLC ("WP E&P XI LLC") is the general partner of WP E&P XI GP. Warburg Pincus Partners (E&P) XI LLC ("WPP E&P XI") is the sole member of WP E&P XI LLC. Warburg Pincus Partners II (US), L.P. ("WP Partners II US") is the managing member of WPP E&P XI. Warburg Pincus & Company US, LLC ("WP & Company US") is the general partner of WP Partners II US. Warburg Pincus LLC ("WP LLC") is the manager of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B.

F4 · acquired: Warburg Pincus (Bermuda) XI, Ltd. ("WP Bermuda XI") is the general partner of WP Co-Invest-B and WP Co-Invest-C. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the sole shareholder of WP Bermuda XI. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP") is the general partner of WPP II Cayman. Mustang Holdco II, WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, WP XI E&P Partners-B, WP Co-Invest LLC, WP Co-Invest-B, WP Co-Invest-C, WP E&P XI GP, WP E&P XI LLC, WPP E&P XI, WP Partners II US, WP & Company US, WP Bermuda XI, WPP II Cayman, WP Bermuda GP, and WP LLC are collectively referred to herein as the "Warburg Pincus Entities").

F5 · acquired: Charles R. Kaye and Joseph P. Landy are each the Managing Members of WP & Company US, the Co-Chairmen and sole Directors of WP Bermuda GP, and the Managing Members and Co-Chief Executive Officers of WP LLC and, as such, may be deemed to control each of the Warburg Pincus Entities. Messrs. Kaye and Landy disclaim beneficial ownership of all shares of Common Stock of the Issuer held by the Warburg Pincus Entities. Messrs. Kaye and Landy together with the Warburg Pincus Entities are collectively referred to herein as the "Warburg Pincus Reporting Persons". Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

F6 · acquired: By reason of the provisions of Rule 16a-1 of the Exchange Act, the Warburg Pincus Reporting Persons may be deemed to be beneficial owners of the 177,207 shares of Common Stock of the Issuer held by Mustang Holdco II. The Warburg Pincus Reporting Persons disclaim beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein. As of the date of this filing, this Form 4 shall not be deemed an admission that any reporting person or any other person referred to herein is a beneficial owner of any securities of the Issuer for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose, or that any reporting person or other person has an obligation to file this Form 4.

F1 · ownership.direct: This Form 4 is being filed in connection with the sale of shares of Common Stock of WEX Inc. (the "Issuer") by Mustang HoldCo II LLC ("Mustang Holdco II").

F2 · ownership.direct: The unitholders of Mustang Holdco II are Warburg Pincus Private Equity (Lexington) XI - A, L.P. ("WP XI Lexington-A"), WP (Lexington) Holdings II, L.P. ("WP Lexington II"), Warburg Pincus XI (Lexington) Partners - A, L.P. ("WP XI Lexington Partners-A"), Warburg Pincus XI (E&P) Partners - B, L.P. ("WP XI E&P Partners-B"), WP Mustang Co-Invest LLC ("WP Co-Invest LLC"), WP Mustang Co-Invest-B L.P. ("WP Co-Invest-B"), and WP Mustang Co-Invest-C L.P. ("WP Co-Invest-C").

F3 · ownership.direct: WP Lexington II is the managing member of Mustang Holdco II. Warburg Pincus (E&P) XI, L.P. ("WP E&P XI GP") is (i) the general partner of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B, and (ii) the managing member of WP Co-Invest LLC. Warburg Pincus (E&P) XI LLC ("WP E&P XI LLC") is the general partner of WP E&P XI GP. Warburg Pincus Partners (E&P) XI LLC ("WPP E&P XI") is the sole member of WP E&P XI LLC. Warburg Pincus Partners II (US), L.P. ("WP Partners II US") is the managing member of WPP E&P XI. Warburg Pincus & Company US, LLC ("WP & Company US") is the general partner of WP Partners II US. Warburg Pincus LLC ("WP LLC") is the manager of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B.

F4 · ownership.direct: Warburg Pincus (Bermuda) XI, Ltd. ("WP Bermuda XI") is the general partner of WP Co-Invest-B and WP Co-Invest-C. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the sole shareholder of WP Bermuda XI. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP") is the general partner of WPP II Cayman. Mustang Holdco II, WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, WP XI E&P Partners-B, WP Co-Invest LLC, WP Co-Invest-B, WP Co-Invest-C, WP E&P XI GP, WP E&P XI LLC, WPP E&P XI, WP Partners II US, WP & Company US, WP Bermuda XI, WPP II Cayman, WP Bermuda GP, and WP LLC are collectively referred to herein as the "Warburg Pincus Entities").

F5 · ownership.direct: Charles R. Kaye and Joseph P. Landy are each the Managing Members of WP & Company US, the Co-Chairmen and sole Directors of WP Bermuda GP, and the Managing Members and Co-Chief Executive Officers of WP LLC and, as such, may be deemed to control each of the Warburg Pincus Entities. Messrs. Kaye and Landy disclaim beneficial ownership of all shares of Common Stock of the Issuer held by the Warburg Pincus Entities. Messrs. Kaye and Landy together with the Warburg Pincus Entities are collectively referred to herein as the "Warburg Pincus Reporting Persons". Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

F6 · ownership.direct: By reason of the provisions of Rule 16a-1 of the Exchange Act, the Warburg Pincus Reporting Persons may be deemed to be beneficial owners of the 177,207 shares of Common Stock of the Issuer held by Mustang Holdco II. The Warburg Pincus Reporting Persons disclaim beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein. As of the date of this filing, this Form 4 shall not be deemed an admission that any reporting person or any other person referred to herein is a beneficial owner of any securities of the Issuer for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), or for any other purpose, or that any reporting person or other person has an obligation to file this Form 4.

SEC source: 0000903423-17-000294 · wp2wex.xml · nonDerivative · entry 1

WARBURG PINCUS LLC · CIK 0001162870 · Director

WARBURG PINCUS (E&P) XI, L.P. · CIK 0001678774 · Director

WARBURG PINCUS (E&P) XI LLC · CIK 0001678784 · Director

WARBURG PINCUS PARTNERS (E&P) XI LLC · CIK 0001678783 · Director

Warburg Pincus Partners II (US), L.P. · CIK 0001658788 · Director

Warburg Pincus & Co US, LLC · CIK 0001635320 · Director

Warburg Pincus (Bermuda) XI, Ltd. · CIK 0001555712 · Director

Warburg Pincus Partners II (Cayman), L.P. · CIK 0001658820 · Director

Warburg Pincus (Bermuda) Private Equity GP Ltd. · CIK 0001555729 · Director

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

10b5-1 filing: Not disclosed

Ownership: Indirect · See explanation of responses.

Disclosed balance after: 2,567,207

F1 · acquired: This Form 4 is being filed in connection with the sale of shares of Common Stock of WEX Inc. (the "Issuer") by Mustang HoldCo II LLC ("Mustang Holdco II"), the successor in interest to Mustang HoldCo 1 LLC ("Mustang Holdco"). Mustang Holdco II received the shares of Common Stock of the Issuer previously held by Mustang Holdco in a transaction exempt from Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act").

F2 · acquired: The unitholders of Mustang Holdco II are Warburg Pincus Private Equity (Lexington) XI - A, L.P. ("WP XI Lexington-A"), WP (Lexington) Holdings II, L.P. ("WP Lexington II"), Warburg Pincus XI (Lexington) Partners - A, L.P. ("WP XI Lexington Partners-A"), Warburg Pincus XI (E&P) Partners - B, L.P. ("WP XI E&P Partners-B"), WP Mustang Co-Invest LLC ("WP Co-Invest LLC"), WP Mustang Co-Invest-B L.P. ("WP Co-Invest-B"), and WP Mustang Co-Invest-C L.P. ("WP Co-Invest-C").

F3 · acquired: WP Lexington II is the managing member of Mustang Holdco II. Warburg Pincus (E&P) XI, L.P. ("WP E&P XI GP") is (i) the general partner of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B, and (ii) the managing member of WP Co-Invest LLC. Warburg Pincus (E&P) XI LLC ("WP E&P XI LLC") is the general partner of WP E&P XI GP. Warburg Pincus Partners (E&P) XI LLC ("WPP E&P XI") is the sole member of WP E&P XI LLC. Warburg Pincus Partners II (US), L.P. ("WP Partners II US") is the managing member of WPP E&P XI. Warburg Pincus & Company US, LLC ("WP & Company US") is the general partner of WP Partners II US. Warburg Pincus LLC ("WP LLC") is the manager of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B.

F4 · acquired: Warburg Pincus (Bermuda) XI, Ltd. ("WP Bermuda XI") is the general partner of WP Co-Invest-B and WP Co-Invest-C. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the sole shareholder of WP Bermuda XI. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP") is the general partner of WPP II Cayman. Mustang Holdco II, WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, WP XI E&P Partners-B, WP Co-Invest LLC, WP Co-Invest-B, WP Co-Invest-C, WP E&P XI GP, WP E&P XI LLC, WPP E&P XI, WP Partners II US, WP & Company US, WP Bermuda XI, WPP II Cayman, WP Bermuda GP, and WP LLC are collectively referred to herein as the "Warburg Pincus Entities").

F5 · acquired: Charles R. Kaye and Joseph P. Landy are the Managing Members of WP & Company US, the Co-Chairmen and sole Directors of WP Bermuda GP, and the Managing Members and Co-Chief Executive Officers of WP LLC and, as such, may be deemed to control each of the Warburg Pincus Entities. Messrs. Kaye and Landy disclaim beneficial ownership of all shares of Common Stock of the Issuer held by the Warburg Pincus Entities. Messrs. Kaye and Landy together with the Warburg Pincus Entities are collectively referred to herein as the "Warburg Pincus Reporting Persons". Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

F6 · acquired: By reason of the provisions of Rule 16a-1 of the Exchange Act, the Warburg Pincus Reporting Persons may be deemed to be beneficial owners of the 2,567,207 shares of Common Stock of the Issuer held by Mustang Holdco II. The Warburg Pincus Reporting Persons disclaim beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein. As of the date of this filing, this Form 4 shall not be deemed an admission that any reporting person or any other person referred to herein is a beneficial owner of any securities of the Issuer for purposes of Section 16 of the Exchange Act, or for any other purpose, or that any reporting person or other person has an obligation to file this Form 4.

F7 · acquired: The amount of Common Stock reported as beneficially owned by the Warburg Pincus Reporting Persons (other than Mustang Holdco II) and Mustang Holdco (together with such Warburg Pincus Reporting Persons, the "Form 3 Filing Persons") in the Form 3 previously filed with the U.S. Securities and Exchange Commission (the "SEC") on July 15, 2016 (the "Form 3") included 160,862 shares of Common Stock of the Issuer beneficially owned by third parties (the "Other Holders"). The Form 3 Filing Persons had no pecuniary interest in such shares beneficially owned by the Other Holders and disclaimed beneficial ownership of such shares on the Form 3. Such shares are now directly held by the Other Holders, and neither the Form 3 Filing Persons nor Mustang Holdco II, either directly or indirectly, holds such shares as of the transaction referenced in note (1) above.

F1 · ownership.direct: This Form 4 is being filed in connection with the sale of shares of Common Stock of WEX Inc. (the "Issuer") by Mustang HoldCo II LLC ("Mustang Holdco II"), the successor in interest to Mustang HoldCo 1 LLC ("Mustang Holdco"). Mustang Holdco II received the shares of Common Stock of the Issuer previously held by Mustang Holdco in a transaction exempt from Section 16 of the Securities Exchange Act of 1934, as amended (the "Exchange Act").

F2 · ownership.direct: The unitholders of Mustang Holdco II are Warburg Pincus Private Equity (Lexington) XI - A, L.P. ("WP XI Lexington-A"), WP (Lexington) Holdings II, L.P. ("WP Lexington II"), Warburg Pincus XI (Lexington) Partners - A, L.P. ("WP XI Lexington Partners-A"), Warburg Pincus XI (E&P) Partners - B, L.P. ("WP XI E&P Partners-B"), WP Mustang Co-Invest LLC ("WP Co-Invest LLC"), WP Mustang Co-Invest-B L.P. ("WP Co-Invest-B"), and WP Mustang Co-Invest-C L.P. ("WP Co-Invest-C").

F3 · ownership.direct: WP Lexington II is the managing member of Mustang Holdco II. Warburg Pincus (E&P) XI, L.P. ("WP E&P XI GP") is (i) the general partner of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B, and (ii) the managing member of WP Co-Invest LLC. Warburg Pincus (E&P) XI LLC ("WP E&P XI LLC") is the general partner of WP E&P XI GP. Warburg Pincus Partners (E&P) XI LLC ("WPP E&P XI") is the sole member of WP E&P XI LLC. Warburg Pincus Partners II (US), L.P. ("WP Partners II US") is the managing member of WPP E&P XI. Warburg Pincus & Company US, LLC ("WP & Company US") is the general partner of WP Partners II US. Warburg Pincus LLC ("WP LLC") is the manager of WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, and WP XI E&P Partners-B.

F4 · ownership.direct: Warburg Pincus (Bermuda) XI, Ltd. ("WP Bermuda XI") is the general partner of WP Co-Invest-B and WP Co-Invest-C. Warburg Pincus Partners II (Cayman), L.P. ("WPP II Cayman") is the sole shareholder of WP Bermuda XI. Warburg Pincus (Bermuda) Private Equity GP Ltd. ("WP Bermuda GP") is the general partner of WPP II Cayman. Mustang Holdco II, WP XI Lexington-A, WP Lexington II, WP XI Lexington Partners-A, WP XI E&P Partners-B, WP Co-Invest LLC, WP Co-Invest-B, WP Co-Invest-C, WP E&P XI GP, WP E&P XI LLC, WPP E&P XI, WP Partners II US, WP & Company US, WP Bermuda XI, WPP II Cayman, WP Bermuda GP, and WP LLC are collectively referred to herein as the "Warburg Pincus Entities").

F5 · ownership.direct: Charles R. Kaye and Joseph P. Landy are the Managing Members of WP & Company US, the Co-Chairmen and sole Directors of WP Bermuda GP, and the Managing Members and Co-Chief Executive Officers of WP LLC and, as such, may be deemed to control each of the Warburg Pincus Entities. Messrs. Kaye and Landy disclaim beneficial ownership of all shares of Common Stock of the Issuer held by the Warburg Pincus Entities. Messrs. Kaye and Landy together with the Warburg Pincus Entities are collectively referred to herein as the "Warburg Pincus Reporting Persons". Information with respect to each of the Warburg Pincus Reporting Persons is given solely by such Warburg Pincus Reporting Person, and no Warburg Pincus Reporting Person has responsibility for the accuracy or completeness of information supplied by another Warburg Pincus Reporting Person.

F6 · ownership.direct: By reason of the provisions of Rule 16a-1 of the Exchange Act, the Warburg Pincus Reporting Persons may be deemed to be beneficial owners of the 2,567,207 shares of Common Stock of the Issuer held by Mustang Holdco II. The Warburg Pincus Reporting Persons disclaim beneficial ownership of such shares of Common Stock of the Issuer except to the extent of their direct pecuniary interest therein. As of the date of this filing, this Form 4 shall not be deemed an admission that any reporting person or any other person referred to herein is a beneficial owner of any securities of the Issuer for purposes of Section 16 of the Exchange Act, or for any other purpose, or that any reporting person or other person has an obligation to file this Form 4.

F7 · ownership.direct: The amount of Common Stock reported as beneficially owned by the Warburg Pincus Reporting Persons (other than Mustang Holdco II) and Mustang Holdco (together with such Warburg Pincus Reporting Persons, the "Form 3 Filing Persons") in the Form 3 previously filed with the U.S. Securities and Exchange Commission (the "SEC") on July 15, 2016 (the "Form 3") included 160,862 shares of Common Stock of the Issuer beneficially owned by third parties (the "Other Holders"). The Form 3 Filing Persons had no pecuniary interest in such shares beneficially owned by the Other Holders and disclaimed beneficial ownership of such shares on the Form 3. Such shares are now directly held by the Other Holders, and neither the Form 3 Filing Persons nor Mustang Holdco II, either directly or indirectly, holds such shares as of the transaction referenced in note (1) above.