MDP HC HOLDINGS, LLC

SEC source: 0001104659-21-151679 · tm2135762-2_4seq1.xml · nonDerivative · entry 1

MADISON DEARBORN PARTNERS LLC · CIK 0001181100 · Former 10% Owner and Director

MADISON DEARBORN PARTNERS VI-A&C, L.P. · CIK 0001740973 · Former 10% Owner and Director

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · Former 10% Owner and Director

MDP HC HOLDINGS, LLC · CIK 0001639951 · Former 10% Owner and Director

FINNEGAN PAUL J · CIK 0001182031 · Former 10% Owner and Director

MENCOFF SAMUEL M · CIK 0001219630 · Former 10% Owner and Director

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

F1 · kind: In connection with the merger transaction on December 17, 2021 (the "Reorganization Merger"), an affiliate of Walgreens Boots Alliance, Inc. acquired control over HC Group Holdings I, LLC, a Delaware limited liability company ("HC I"), which directly held 37,247,092 shares of the Issuer's Common Stock (the "HC I Shares") as previously reflected on the Reporting Persons' filings. As a result of the Reorganization Merger, the Reporting Persons ceased to have voting or dispositive power over the HC I Shares but experienced no change in pecuniary interest because the Reporting Persons had no pecuniary interest in the HC I Shares.

F1 · price: In connection with the merger transaction on December 17, 2021 (the "Reorganization Merger"), an affiliate of Walgreens Boots Alliance, Inc. acquired control over HC Group Holdings I, LLC, a Delaware limited liability company ("HC I"), which directly held 37,247,092 shares of the Issuer's Common Stock (the "HC I Shares") as previously reflected on the Reporting Persons' filings. As a result of the Reorganization Merger, the Reporting Persons ceased to have voting or dispositive power over the HC I Shares but experienced no change in pecuniary interest because the Reporting Persons had no pecuniary interest in the HC I Shares.

F2 · ownership.direct: MDP HC was formerly the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, served on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A.

F3 · ownership.direct: (Continued from Footnote 2) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the reported securities. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest therein.

F2 · ownership.nature: MDP HC was formerly the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, served on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A.

F3 · ownership.nature: (Continued from Footnote 2) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the reported securities. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest therein.

F4 · ownership.nature: The other beneficial owners of the reported securities have separately filed Form 4s.

SEC source: 0001104659-21-118022 · tm2127831-2_4seq1.xml · nonDerivative · entry 1

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · Director · 10% owner

MDP HC HOLDINGS, LLC · CIK 0001639951 · Director · 10% owner

HC GROUP HOLDINGS I, LLC · CIK 0001639949 · Director · 10% owner

FINNEGAN PAUL J · CIK 0001182031 · Director · 10% owner

MENCOFF SAMUEL M · CIK 0001219630 · 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: 37,341,872

F1 · kind: On September 17, 2021, (1) HC Group Holdings I, LLC ("HC I") distributed 618,299 shares of common stock to its equityholder, MDP HC Holdings, LLC ("MDP HC"), (2) MDP HC distributed 618,299 shares of common stock to its equityholders, Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A"), Madison Dearborn Capital Partners VI Executive-A, L.P. ("MDCP VI Executive-A") and Madison Dearborn Capital Partners VI-C, L.P. ("MDCP VI-C" and together with MDCP VI-A and MDCP VI Executive-A, the "MDP HC Equityholders"), and (3) the MDP HC Equityholders distributed 618,299 shares of common stock to their equityholder, Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C"). Each of the foregoing distributions was for no consideration.

F1 · price: On September 17, 2021, (1) HC Group Holdings I, LLC ("HC I") distributed 618,299 shares of common stock to its equityholder, MDP HC Holdings, LLC ("MDP HC"), (2) MDP HC distributed 618,299 shares of common stock to its equityholders, Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A"), Madison Dearborn Capital Partners VI Executive-A, L.P. ("MDCP VI Executive-A") and Madison Dearborn Capital Partners VI-C, L.P. ("MDCP VI-C" and together with MDCP VI-A and MDCP VI Executive-A, the "MDP HC Equityholders"), and (3) the MDP HC Equityholders distributed 618,299 shares of common stock to their equityholder, Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C"). Each of the foregoing distributions was for no consideration.

F2 · balance_after: Consists of (i) 37,247,092 shares of common stock held by HC I, (ii) 10,895 shares of common stock held by Elizabeth Q. Betten, which were issued to Ms. Betten upon vesting of certain restricted stock units ("RSUs") received by Ms. Betten in her capacity as a director of Option Care Health, Inc. (the "Issuer"), (iii) 10,895 shares of common stock held by Timothy Sullivan, which were issued to Mr. Sullivan upon vesting of certain RSUs received by Mr. Sullivan in his capacity as a director of the Issuer, and (iv) 72,990 RSUs awarded to Ms. Betten and Mr. Sullivan in their capacity as directors of the Issuer.

F3 · ownership.direct: MDP HC is the controlling equityholder of HC I. MDCP VI-A is a controlling equityholder and Manager of MDP HC. MDP VI-A&C is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.direct: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VIA& C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F3 · ownership.nature: MDP HC is the controlling equityholder of HC I. MDCP VI-A is a controlling equityholder and Manager of MDP HC. MDP VI-A&C is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.nature: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VIA& C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

SEC source: 0001104659-21-114811 · tm2127396d2_4seq1.xml · nonDerivative · entry 1

MADISON DEARBORN PARTNERS LLC · CIK 0001181100 · Director · 10% owner

MADISON DEARBORN PARTNERS VI-A&C, L.P. · CIK 0001740973 · Director · 10% owner

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · Director · 10% owner

MDP HC HOLDINGS, LLC · CIK 0001639951 · Director · 10% owner

HC GROUP HOLDINGS I, LLC · CIK 0001639949 · Director · 10% owner

FINNEGAN PAUL J · CIK 0001182031 · Director · 10% owner

MENCOFF SAMUEL M · CIK 0001219630 · 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: 37,960,171

F1 · price: The per share sale price reported in this Form 4 does not reflect reduction for underwriting discounts.

F2 · balance_after: Consists of (i) 37,865,391 shares of common stock held by HC Group Holdings I, LLC ("HC I"), (ii) 10,895 shares of common stock held by Elizabeth Q. Betten, which were issued to Ms. Betten upon vesting of certain restricted stock units ("RSUs") received by Ms. Betten in her capacity as a director of Option Care Health, Inc. (the "Issuer"), (iii) 10,895 shares of common stock held by Timothy Sullivan, which were issued to Mr. Sullivan upon vesting of certain RSUs received by Mr. Sullivan in his capacity as a director of the Issuer, and (iv) 72,990 RSUs awarded to Ms. Betten and Mr. Sullivan in their capacity as directors of the Issuer.

F3 · ownership.direct: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.direct: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VIA& C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F3 · ownership.nature: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.nature: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VIA& C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F5 · ownership.nature: The other beneficial owners of the reported securities have separately filed Form 4s.

SEC source: 0001104659-21-101451 · tm2124220-2_4seq1.xml · nonDerivative · entry 1

MADISON DEARBORN PARTNERS LLC · CIK 0001181100 · Director · 10% owner

MADISON DEARBORN PARTNERS VI-A&C, L.P. · CIK 0001740973 · Director · 10% owner

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · Director · 10% owner

MDP HC HOLDINGS, LLC · CIK 0001639951 · Director · 10% owner

HC GROUP HOLDINGS I, LLC · CIK 0001639949 · Director · 10% owner

FINNEGAN PAUL J · CIK 0001182031 · Director · 10% owner

MENCOFF SAMUEL M · CIK 0001219630 · 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: 47,160,171

F1 · price: The per share sale price reported in this Form 4 does not reflect reduction for underwriting discounts.

F2 · balance_after: Consists of (i) 47,065,391 shares of common stock held by HC Group Holdings I, LLC ("HC I"), (ii) 10,895 shares of common stock held by Elizabeth Q. Betten, which were issued to Ms. Betten upon vesting of certain restricted stock units ("RSUs") received by Ms. Betten in her capacity as a director of Option Care Health, Inc. (the "Issuer"), (iii) 10,895 shares of common stock held by Timothy Sullivan, which were issued to Mr. Sullivan upon vesting of certain RSUs received by Mr. Sullivan in his capacity as a director of the Issuer, and (iv) 72,990 RSUs awarded to Ms. Betten and Mr. Sullivan in their capacity as directors of the Issuer.

F3 · ownership.direct: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.direct: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F3 · ownership.nature: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.nature: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F5 · ownership.nature: The other beneficial owners of the reported securities have separately filed Form 4s.

SEC source: 0001104659-21-080798 · tm2119372-2_4seq1.xml · nonDerivative · entry 1

MADISON DEARBORN PARTNERS LLC · CIK 0001181100 · Director · 10% owner

MADISON DEARBORN PARTNERS VI-A&C, L.P. · CIK 0001740973 · Director · 10% owner

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · Director · 10% owner

MDP HC HOLDINGS, LLC · CIK 0001639951 · Director · 10% owner

HC GROUP HOLDINGS I, LLC · CIK 0001639949 · Director · 10% owner

FINNEGAN PAUL J · CIK 0001182031 · Director · 10% owner

MENCOFF SAMUEL M · CIK 0001219630 · 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: 67,860,171

F1 · price: The per share sale price reported in this Form 4 does not reflect reduction for underwriting discounts.

F2 · balance_after: Consists of (i) 67,765,391 shares of common stock held by HC Group Holdings I, LLC ("HC I"), (ii) 10,895 shares of common stock held by Elizabeth Q. Betten, which were issued to Ms. Betten upon vesting of certain restricted stock units ("RSUs") received by Ms. Betten in her capacity as a director of Option Care Health, Inc. (the "Issuer"), (iii) 10,895 shares of common stock held by Timothy Sullivan, which were issued to Mr. Sullivan upon vesting of certain RSUs received by Mr. Sullivan in his capacity as a director of the Issuer, and (iv) 72,990 RSUs awarded to Ms. Betten and Mr. Sullivan in their capacity as directors of the Issuer.

F3 · ownership.direct: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.direct: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F3 · ownership.nature: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.nature: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F5 · ownership.nature: The other beneficial owners of the reported securities have separately filed Form 4s.

SEC source: 0001104659-21-039118 · tm2110033d2_4seq1.xml · nonDerivative · entry 1

MADISON DEARBORN PARTNERS LLC · CIK 0001181100 · Director · 10% owner

MADISON DEARBORN PARTNERS VI-A&C, L.P. · CIK 0001740973 · Director · 10% owner

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · Director · 10% owner

MDP HC HOLDINGS, LLC · CIK 0001639951 · Director · 10% owner

HC GROUP HOLDINGS I, LLC · CIK 0001639949 · Director · 10% owner

FINNEGAN PAUL J · CIK 0001182031 · Director · 10% owner

MENCOFF SAMUEL M · CIK 0001219630 · 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: 85,080,771

F1 · price: The per share sale price reported in this Form 4 does not reflect reduction for underwriting discounts.

F2 · balance_after: Consists of (i) 85,015,391 shares of common stock held by HC Group Holdings I, LLC ("HC I"), (ii) 5,472 shares of common stock held by Elizabeth Q. Betten, which were issued to Ms. Betten upon vesting of certain restricted stock units ("RSUs") received by Ms. Betten in her capacity as a director of Option Care Health, Inc. (the "Issuer"), (iii) 5,472 shares of common stock held by Timothy Sullivan, which were issued to Mr. Sullivan upon vesting of certain RSUs received by Mr. Sullivan in his capacity as a director of the Issuer, and (iv) 54,436 RSUs awarded to Ms. Betten and Mr. Sullivan in their capacity as directors of the Issuer.

F3 · ownership.direct: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.direct: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F3 · ownership.nature: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.nature: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F5 · ownership.nature: The other beneficial owners of the reported securities have separately filed Form 4s.

SEC source: 0001104659-20-140194 · a4.xml · nonDerivative · entry 2

MADISON DEARBORN PARTNERS LLC · CIK 0001181100 · Director · 10% owner

MADISON DEARBORN PARTNERS VI-A&C, L.P. · CIK 0001740973 · Director · 10% owner

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · Director · 10% owner

MDP HC HOLDINGS, LLC · CIK 0001639951 · Director · 10% owner

HC GROUP HOLDINGS I, LLC · CIK 0001639949 · Director · 10% owner

FINNEGAN PAUL J · CIK 0001182031 · Director · 10% owner

MENCOFF SAMUEL M · CIK 0001219630 · 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: 114,330,771

F6 · price: The per share sale price reported in this Form 4 does not reflect reduction for underwriting discounts.

F7 · balance_after: Consists of (i) 114,265,391 shares of common stock held by HC I, (ii) 5,418 shares of common stock held by Elizabeth Q. Betten, which were issued to Ms. Betten upon vesting of certain RSUs received by Ms. Betten in her capacity as a director of the Issuer, (iii) 5,418 shares of common stock held by Timothy Sullivan, which were issued to Mr. Sullivan upon vesting of certain RSUs received by Mr. Sullivan in his capacity as a director of the Issuer, and (iv) 54,544 RSUs awarded to Ms. Betten and Mr. Sullivan in their capacity as directors of the Issuer.

F3 · ownership.direct: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.direct: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F3 · ownership.nature: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.nature: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F5 · ownership.nature: The other beneficial owners of the reported securities have separately filed Form 4s.

SEC source: 0001104659-20-140194 · a4.xml · nonDerivative · entry 1

MADISON DEARBORN PARTNERS LLC · CIK 0001181100 · Director · 10% owner

MADISON DEARBORN PARTNERS VI-A&C, L.P. · CIK 0001740973 · Director · 10% owner

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · Director · 10% owner

MDP HC HOLDINGS, LLC · CIK 0001639951 · Director · 10% owner

HC GROUP HOLDINGS I, LLC · CIK 0001639949 · Director · 10% owner

FINNEGAN PAUL J · CIK 0001182031 · Director · 10% owner

MENCOFF SAMUEL M · CIK 0001219630 · 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: 114,930,771

F1 · kind: Represents the forfeiture of shares of common stock issued to HC Group Holdings I, LLC ("HC I") in conjunction with the Agreement and Plan of Merger, dated as of March 14, 2019, by and among Option Care Health, Inc. (the "Issuer"), HC Group Holdings II, Inc., HC I, HC Group Holdings III, Inc., Beta Sub, Inc. and Beta Sub, LLC, to prevent dilution related to the vesting of certain outstanding unvested restricted stock units of the Issuer held by Home Solutions, Inc. The shares were forfeited to the Issuer for cancellation on December 24, 2020 as a result of the non-satisfaction of the vesting criteria in respect of such restricted stock units.

F1 · price: Represents the forfeiture of shares of common stock issued to HC Group Holdings I, LLC ("HC I") in conjunction with the Agreement and Plan of Merger, dated as of March 14, 2019, by and among Option Care Health, Inc. (the "Issuer"), HC Group Holdings II, Inc., HC I, HC Group Holdings III, Inc., Beta Sub, Inc. and Beta Sub, LLC, to prevent dilution related to the vesting of certain outstanding unvested restricted stock units of the Issuer held by Home Solutions, Inc. The shares were forfeited to the Issuer for cancellation on December 24, 2020 as a result of the non-satisfaction of the vesting criteria in respect of such restricted stock units.

F2 · balance_after: Consists of (i) 114,865,391 shares of common stock held by HC I, (ii) 5,418 shares of common stock held by Elizabeth Q. Betten, which were issued to Ms. Betten upon vesting of certain restricted stock units ("RSUs") received by Ms. Betten in her capacity as a director of the Issuer, (iii) 5,418 shares of common stock held by Timothy Sullivan, which were issued to Mr. Sullivan upon vesting of certain RSUs received by Mr. Sullivan in his capacity as a director of the Issuer, and (iv) 54,544 RSUs awarded to Ms. Betten and Mr. Sullivan in their capacity as directors of the Issuer.

F3 · ownership.direct: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.direct: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F3 · ownership.nature: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.nature: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F5 · ownership.nature: The other beneficial owners of the reported securities have separately filed Form 4s.

SEC source: 0001104659-20-136372 · a4.xml · nonDerivative · entry 1

MADISON DEARBORN PARTNERS LLC · CIK 0001181100 · 10% owner

MADISON DEARBORN PARTNERS VI-A&C, L.P. · CIK 0001740973 · 10% owner

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · 10% owner

MDP HC HOLDINGS, LLC · CIK 0001639951 · 10% owner

HC GROUP HOLDINGS I, LLC · CIK 0001639949 · 10% owner

FINNEGAN PAUL J · CIK 0001182031 · 10% owner

MENCOFF SAMUEL M · CIK 0001219630 · 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: 121,979,128

F1 · price: The per share sale price reported in this Form 4 does not reflect reduction for underwriting discounts.

F2 · balance_after: Consists of (i) 121,913,748 shares of common stock held by HC Group Holdings I, LLC ("HC I"), (ii) 5,418 shares of common stock held by Elizabeth Q. Betten, which were issued to Ms. Betten upon vesting of certain restricted stock units ("RSUs") received by Ms. Betten in her capacity as a director of Option Care Health, Inc. (the "Issuer"), (iii) 5,418 shares of common stock held by Timothy Sullivan, which were issued to Mr. Sullivan upon vesting of certain RSUs received by Mr. Sullivan in his capacity as a director of the Issuer, and (iv) 54,544 RSUs awarded to Ms. Betten and Mr. Sullivan in their capacity as directors of the Issuer.

F3 · ownership.direct: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C, which in turn is the general partner of MDCP VI-A. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.direct: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F3 · ownership.nature: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C, which in turn is the general partner of MDCP VI-A. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.nature: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F5 · ownership.nature: The other beneficial owners of the reported securities have separately filed Form 4s.

SEC source: 0001104659-21-021273 · a4.xml · nonDerivative · entry 1

MADISON DEARBORN PARTNERS LLC · CIK 0001181100 · Director · 10% owner

MADISON DEARBORN PARTNERS VI-A&C, L.P. · CIK 0001740973 · Director · 10% owner

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · Director · 10% owner

MDP HC HOLDINGS, LLC · CIK 0001639951 · Director · 10% owner

HC GROUP HOLDINGS I, LLC · CIK 0001639949 · Director · 10% owner

FINNEGAN PAUL J · CIK 0001182031 · Director · 10% owner

MENCOFF SAMUEL M · CIK 0001219630 · 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: 97,080,771

F1 · price: The per share sale price reported in this Form 4 does not reflect reduction for underwriting discounts.

F2 · balance_after: Consists of (i) 97,015,391 shares of common stock held by HC Group Holdings I, LLC ("HC I"), (ii) 5,418 shares of common stock held by Elizabeth Q. Betten, which were issued to Ms. Betten upon vesting of certain restricted stock units ("RSUs") received by Ms. Betten in her capacity as a director of Option Care Health, Inc. (the "Issuer"), (iii) 5,418 shares of common stock held by Timothy Sullivan, which were issued to Mr. Sullivan upon vesting of certain RSUs received by Mr. Sullivan in his capacity as a director of the Issuer, and (iv) 54,544 RSUs awarded to Ms. Betten and Mr. Sullivan in their capacity as directors of the Issuer.

F3 · ownership.direct: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.direct: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F3 · ownership.nature: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of the Issuer. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.nature: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F5 · ownership.nature: The other beneficial owners of the reported securities have separately filed Form 4s.

SEC source: 0001104659-20-097297 · a4.xml · nonDerivative · entry 1

MADISON DEARBORN PARTNERS LLC · CIK 0001181100 · Director · 10% owner

MADISON DEARBORN PARTNERS VI-A&C, L.P. · CIK 0001740973 · Director · 10% owner

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · Director · 10% owner

MDP HC HOLDINGS, LLC · CIK 0001639951 · Director · 10% owner

HC GROUP HOLDINGS I, LLC · CIK 0001639949 · Director · 10% owner

FINNEGAN PAUL J · CIK 0001182031 · Director · 10% owner

MENCOFF SAMUEL M · CIK 0001219630 · 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: 131,913,748

F1 · price: The per share sale price reported in this Form 4 does not reflect reduction for underwriting discounts.

F2 · balance_after: Consists of 131,913,748 shares of common stock held by HC Group Holdings I, LLC ("HC I").

F3 · ownership.direct: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C, which in turn is the general partner of MDCP VI-A. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of Option Care Health, Inc. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.direct: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F3 · ownership.nature: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C, which in turn is the general partner of MDCP VI-A. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of Option Care Health, Inc. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.nature: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F5 · ownership.nature: The other beneficial owners of the reported securities have separately filed Form 4s.

SEC source: 0001104659-20-086447 · a4.xml · nonDerivative · entry 1

MADISON DEARBORN PARTNERS LLC · CIK 0001181100 · Director · 10% owner

MADISON DEARBORN PARTNERS VI-A&C, L.P. · CIK 0001740973 · Director · 10% owner

Madison Dearborn Capital Partners VI-A, L.P. · CIK 0001417975 · Director · 10% owner

MDP HC HOLDINGS, LLC · CIK 0001639951 · Director · 10% owner

HC GROUP HOLDINGS I, LLC · CIK 0001639949 · Director · 10% owner

FINNEGAN PAUL J · CIK 0001182031 · Director · 10% owner

MENCOFF SAMUEL M · CIK 0001219630 · 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: 134,613,748

F1 · price: The per share sale price reported in this Form 4 does not reflect reduction for underwriting discounts.

F2 · balance_after: Consists of 134,613,748 shares of common stock held by HC Group Holdings I, LLC ("HC I").

F3 · ownership.direct: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C, which in turn is the general partner of MDCP VI-A. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of Option Care Health, Inc. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.direct: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F3 · ownership.nature: MDP HC Holdings, LLC ("MDP HC") is the controlling equityholder of HC I. Madison Dearborn Capital Partners VI-A, L.P. ("MDCP VI-A") is a controlling equityholder and Manager of MDP HC. Madison Dearborn Partners VI-A&C, L.P. ("MDP VI-A&C") is the general partner of MDCP VI-A. Madison Dearborn Partners, LLC ("MDP LLC") is the general partner of MDP VI-A&C, which in turn is the general partner of MDCP VI-A. Elizabeth Q. Betten and Timothy P. Sullivan are Managing Directors of MDP LLC, limited partners of MDP VI-A&C, serve on the board of managers of HC I and serve on the board of directors of Option Care Health, Inc. Paul J. Finnegan and Samuel M. Mencoff are the sole members of a limited partner committee that (by majority vote) controls investment decisions of shares held directly by MDCP VI-A, and may be deemed to control the disposition of shares of Common Stock held directly by HC I.

F4 · ownership.nature: (Continued from Footnote 3) By virtue of the relationships described in this footnote, Ms. Betten and Messrs. Sullivan, Finnegan and Mencoff may be deemed to exercise voting and dispositive power with respect to the shares of Common Stock held by HC I. Each of Mr. Finnegan, Mr. Mencoff, Mr. Sullivan, Ms. Betten, MDP LLC, MDP VI-A&C, MDCP VI-A and MDP HC disclaims beneficial ownership of the shares of Common Stock owned by HC I except to the extent of its pecuniary interest therein.

F5 · ownership.nature: The other beneficial owners of the reported securities have separately filed Form 4s.