STLN

SEC source: 0001628280-22-007102 · wf-form4_164807861674913.xml · nonDerivative · entry 1

SARIN RAVI YANG · CIK 0001555959 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,994

F1 · shares: Represents restricted stock units that vest in full on November 12, 2022, subject to continued service with the Company through such vesting date.

F1 · price: Represents restricted stock units that vest in full on November 12, 2022, subject to continued service with the Company through such vesting date.

SEC source: 0001628280-22-007101 · wf-form4_164807859777265.xml · derivative · entry 2

Hively Brad · CIK 0001891124 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 88,090

Underlying: Common stock · 88,090 shares

Expires 2032-03-21

F3 · derivative.exercise_date: The stock options vest in four equal annual installments on each of the first four anniversaries of the Vesting Commencement Date, with all options becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007101 · wf-form4_164807859777265.xml · nonDerivative · entry 1

Hively Brad · CIK 0001891124 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 461,919

F1 · shares: Represents restricted stock units ("RSUs") that vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all RSUs becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

F1 · price: Represents restricted stock units ("RSUs") that vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all RSUs becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

F2 · balance_after: The reporting person's last filing incorrectly reported 363,450 total holdings instead of 353,450 total holdings.

SEC source: 0001628280-22-007100 · wf-form4_164807857979175.xml · nonDerivative · entry 2

O'Meara Maeve · CIK 0001742487 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 19,992

SEC source: 0001628280-22-007100 · wf-form4_164807857979175.xml · nonDerivative · entry 1

O'Meara Maeve · CIK 0001742487 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,994

F1 · shares: Represents restricted stock units that vest in full on November 12, 2022, subject to continued service with the Company through such vesting date.

F1 · price: Represents restricted stock units that vest in full on November 12, 2022, subject to continued service with the Company through such vesting date.

SEC source: 0001628280-22-007098 · wf-form4_164807854570402.xml · derivative · entry 2

Virnich Daniel · CIK 0001891107 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,121

Underlying: Common stock · 34,121 shares

Expires 2032-03-21

F2 · derivative.exercise_date: The stock options vest in four equal annual installments on each of the first four anniversaries of the Vesting Commencement Date, with all options becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007098 · wf-form4_164807854570402.xml · nonDerivative · entry 1

Virnich Daniel · CIK 0001891107 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 237,251

F1 · shares: Represents restricted stock units ("RSUs") that vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all RSUs becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

F1 · price: Represents restricted stock units ("RSUs") that vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all RSUs becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007097 · wf-form4_164807852431445.xml · nonDerivative · entry 2

Kaushal Mohit · CIK 0001683021 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 46,326

SEC source: 0001628280-22-007097 · wf-form4_164807852431445.xml · nonDerivative · entry 1

Kaushal Mohit · CIK 0001683021 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 41,528

F1 · shares: Represents restricted stock units that vest in full on November 12, 2022, subject to continued service with the Company through such vesting date.

F1 · price: Represents restricted stock units that vest in full on November 12, 2022, subject to continued service with the Company through such vesting date.

SEC source: 0001628280-22-007096 · wf-form4_164807850276802.xml · derivative · entry 4

Podnos Yale · CIK 0001891104 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,330

Underlying: Common stock · 10,330 shares

Expires 2032-03-21

F4 · derivative.exercise_date: The stock options vest as to 1/3rd of the options granted on the second anniversary of the Vesting Commencement Date, with the remaining options vesting in four equal annual installments beginning on the third anniversary of the Vesting Commencement Date, with all options becoming vested on the sixth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007096 · wf-form4_164807850276802.xml · derivative · entry 3

Podnos Yale · CIK 0001891104 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,757

Underlying: Common stock · 1,757 shares

Expires 2032-03-21

F3 · derivative.exercise_date: The stock options vest in four equal annual installments on each of the first four anniversaries of the Vesting Commencement Date, with all options becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007096 · wf-form4_164807850276802.xml · nonDerivative · entry 2

Podnos Yale · CIK 0001891104 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,282

F2 · shares: Represents RSUs with 1/3rd of the RSUs vesting on the second anniversary of the Vesting Commencement Date, with the remaining RSUs vesting in four equal annual installments beginning on the third anniversary of the Vesting Commencement Date, with all RSUs becoming vested on the sixth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

F2 · price: Represents RSUs with 1/3rd of the RSUs vesting on the second anniversary of the Vesting Commencement Date, with the remaining RSUs vesting in four equal annual installments beginning on the third anniversary of the Vesting Commencement Date, with all RSUs becoming vested on the sixth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007096 · wf-form4_164807850276802.xml · nonDerivative · entry 1

Podnos Yale · CIK 0001891104 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,562

F1 · shares: Represents restricted stock units ("RSUs") that vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all RSUs becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

F1 · price: Represents restricted stock units ("RSUs") that vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all RSUs becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007095 · wf-form4_164807848351583.xml · derivative · entry 4

Miller Matthew P · CIK 0001915822 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,575

Underlying: Common stock · 17,575 shares

Expires 2032-03-21

F4 · derivative.exercise_date: The stock options vest as to 1/3rd of the options granted on the second anniversary of the Vesting Commencement Date, with the remaining options vesting in four equal annual installments beginning on the third anniversary of the Vesting Commencement Date, with all options becoming vested on the sixth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007095 · wf-form4_164807848351583.xml · derivative · entry 3

Miller Matthew P · CIK 0001915822 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,186

Underlying: Common stock · 5,186 shares

Expires 2032-03-21

F3 · derivative.exercise_date: The stock options vest in four equal annual installments on each of the first four anniversaries of the Vesting Commencement Date, with all options becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007095 · wf-form4_164807848351583.xml · nonDerivative · entry 2

Miller Matthew P · CIK 0001915822 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 78,611

F2 · shares: Represents RSUs with 1/3rd of the RSUs vesting on the second anniversary of the Vesting Commencement Date, with the remaining RSUs vesting in four equal annual installments beginning on the third anniversary of the Vesting Commencement Date, with all RSUs becoming vested on the sixth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

F2 · price: Represents RSUs with 1/3rd of the RSUs vesting on the second anniversary of the Vesting Commencement Date, with the remaining RSUs vesting in four equal annual installments beginning on the third anniversary of the Vesting Commencement Date, with all RSUs becoming vested on the sixth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007095 · wf-form4_164807848351583.xml · nonDerivative · entry 1

Miller Matthew P · CIK 0001915822 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 56,970

F1 · shares: Represents restricted stock units ("RSUs") that vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all RSUs becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

F1 · price: Represents restricted stock units ("RSUs") that vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all RSUs becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007093 · wf-form4_164807843000079.xml · nonDerivative · entry 2

McGeorge Anne · CIK 0001779934 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,391

SEC source: 0001628280-22-007093 · wf-form4_164807843000079.xml · nonDerivative · entry 1

McGeorge Anne · CIK 0001779934 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,994

F1 · shares: Represents restricted stock units that vest in full on November 12, 2022, subject to continued service with the Company through such vesting date.

F1 · price: Represents restricted stock units that vest in full on November 12, 2022, subject to continued service with the Company through such vesting date.

SEC source: 0001628280-22-007092 · wf-form4_164807841319276.xml · nonDerivative · entry 2

Johnson Karen Marie · CIK 0001892819 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,792

SEC source: 0001628280-22-007092 · wf-form4_164807841319276.xml · nonDerivative · entry 1

Johnson Karen Marie · CIK 0001892819 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,994

F1 · shares: Represents restricted stock units that vest in full on November 12, 2022, subject to continued service with the Company through such vesting date.

F1 · price: Represents restricted stock units that vest in full on November 12, 2022, subject to continued service with the Company through such vesting date.

SEC source: 0001628280-22-007763 · wf-form4a_164859908108007.xml · derivative · entry 2

Miller Matthew P · CIK 0001915822 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 109,844

Underlying: Common stock · 109,844 shares

Expires 2032-03-21

F2 · derivative.exercise_date: The stock options vest as to 1/3rd of the options granted on the second anniversary of the Vesting Commencement Date, with the remaining options vesting in four equal annual installments beginning on the third anniversary of the Vesting Commencement Date, with all options becoming vested on the sixth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007763 · wf-form4a_164859908108007.xml · derivative · entry 1

Miller Matthew P · CIK 0001915822 · Chief Operating Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 32,417

Underlying: Common stock · 32,417 shares

Expires 2032-03-21

F1 · derivative.exercise_date: The stock options vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all options becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007762 · wf-form4a_164859906277771.xml · derivative · entry 2

Podnos Yale · CIK 0001891104 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 64,567

Underlying: Common stock · 64,567 shares

Expires 2032-03-21

F2 · derivative.exercise_date: The stock options vest as to 1/3rd of the options granted on the second anniversary of the Vesting Commencement Date, with the remaining options vesting in four equal annual installments beginning on the third anniversary of the Vesting Commencement Date, with all options becoming vested on the sixth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007762 · wf-form4a_164859906277771.xml · derivative · entry 1

Podnos Yale · CIK 0001891104 · Chief Medical Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,984

Underlying: Common stock · 10,984 shares

Expires 2032-03-21

F1 · derivative.exercise_date: The stock options vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all options becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007761 · wf-form4a_164859904637538.xml · derivative · entry 1

Virnich Daniel · CIK 0001891107 · President

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 213,259

Underlying: Common stock · 213,259 shares

Expires 2032-03-21

F1 · derivative.exercise_date: The stock options vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all options becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007760 · wf-form4a_164859902956940.xml · derivative · entry 1

Dalgleish Scott · CIK 0001891053 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 162,891

Underlying: Common stock · 162,891 shares

Expires 2032-03-21

F1 · derivative.exercise_date: The stock options vest as to 1/3rd of the options granted on the second anniversary of November 12, 2021 (the "Vesting Commencement Date"), with the remaining options vesting in four equal annual installments beginning on the third anniversary of the Vesting Commencement Date, with all options becoming vested on the sixth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001628280-22-007759 · wf-form4a_164859901030434.xml · derivative · entry 1

Hively Brad · CIK 0001891124 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 550,563

Underlying: Common stock · 550,563 shares

Expires 2032-03-21

F1 · derivative.exercise_date: The stock options vest in four equal annual installments on each of the first four anniversaries of November 12, 2021 (the "Vesting Commencement Date"), with all options becoming vested on the fourth anniversary of the Vesting Commencement Date, subject to continued service with the Company through such vesting dates.

SEC source: 0001104659-21-143688 · tm2133957-1_4seq1.xml · nonDerivative · entry 3

BARASCH RICHARD A · CIK 0001076341 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 96,113

SEC source: 0001104659-21-143688 · tm2133957-1_4seq1.xml · nonDerivative · entry 2

BARASCH RICHARD A · CIK 0001076341 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 94,913

SEC source: 0001104659-21-143688 · tm2133957-1_4seq1.xml · nonDerivative · entry 1

BARASCH RICHARD A · CIK 0001076341 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 93,113

SEC source: 0001104659-21-143245 · tm2133425d7_4seq1.xml · nonDerivative · entry 2

BARASCH RICHARD A · CIK 0001076341 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 91,113

SEC source: 0001104659-21-143245 · tm2133425d7_4seq1.xml · nonDerivative · entry 1

BARASCH RICHARD A · CIK 0001076341 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,613

SEC source: 0001104659-21-141467 · tm2133425-5_4seq1.xml · nonDerivative · entry 1

BARASCH RICHARD A · CIK 0001076341 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 86,113

SEC source: 0001193805-21-001590 · e621086_4-dfp.xml · derivative · entry 14

Flynn James E · CIK 0001352546 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt L.P. · CIK 0001010823 · 10% owner · Possible Members of 10% Group

DEERFIELD PARTNERS, L.P. · CIK 0001301041 · 10% owner · Possible Members of 10% Group

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt IV, L.P. · CIK 0001713467 · 10% owner · Possible Members of 10% Group

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield Private Design Fund IV, L.P.

Disclosed balance after: 625,000

Underlying: Class A Common Stock · 625,000 shares

Expires 2026-11-12

F9 · kind: Each Fund acquired the Public Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Public Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Public Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, each fund elected to be governed by a Maximum Percentage (as defined in the Public Warrants) of 4.9%.

F9 · price: Each Fund acquired the Public Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Public Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Public Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, each fund elected to be governed by a Maximum Percentage (as defined in the Public Warrants) of 4.9%.

F9 · derivative.underlying_shares: Each Fund acquired the Public Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Public Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Public Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, each fund elected to be governed by a Maximum Percentage (as defined in the Public Warrants) of 4.9%.

F9 · balance_after: Each Fund acquired the Public Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Public Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Public Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, each fund elected to be governed by a Maximum Percentage (as defined in the Public Warrants) of 4.9%.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt, L.P. is the general partner of Deerfield Partners, L.P. ("Deerfield Partners"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV" and, together with Deerfield Partners, the "Funds"). Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt, L.P. and Deerfield Management Company, L.P. Each Fund holds a 37% membership interest in DFP Sponsor, LLC (the "Sponsor").

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds, the Sponsor and Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001193805-21-001590 · e621086_4-dfp.xml · derivative · entry 13

Flynn James E · CIK 0001352546 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt L.P. · CIK 0001010823 · 10% owner · Possible Members of 10% Group

DEERFIELD PARTNERS, L.P. · CIK 0001301041 · 10% owner · Possible Members of 10% Group

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt IV, L.P. · CIK 0001713467 · 10% owner · Possible Members of 10% Group

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield Partners, L.P.

Disclosed balance after: 625,000

Underlying: Class A Common Stock · 625,000 shares

Expires 2026-11-12

F9 · kind: Each Fund acquired the Public Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Public Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Public Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, each fund elected to be governed by a Maximum Percentage (as defined in the Public Warrants) of 4.9%.

F9 · price: Each Fund acquired the Public Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Public Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Public Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, each fund elected to be governed by a Maximum Percentage (as defined in the Public Warrants) of 4.9%.

F9 · derivative.underlying_shares: Each Fund acquired the Public Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Public Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Public Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, each fund elected to be governed by a Maximum Percentage (as defined in the Public Warrants) of 4.9%.

F9 · balance_after: Each Fund acquired the Public Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Public Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Public Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, each fund elected to be governed by a Maximum Percentage (as defined in the Public Warrants) of 4.9%.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt, L.P. is the general partner of Deerfield Partners, L.P. ("Deerfield Partners"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV" and, together with Deerfield Partners, the "Funds"). Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt, L.P. and Deerfield Management Company, L.P. Each Fund holds a 37% membership interest in DFP Sponsor, LLC (the "Sponsor").

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds, the Sponsor and Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001193805-21-001590 · e621086_4-dfp.xml · derivative · entry 12

Flynn James E · CIK 0001352546 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt L.P. · CIK 0001010823 · 10% owner · Possible Members of 10% Group

DEERFIELD PARTNERS, L.P. · CIK 0001301041 · 10% owner · Possible Members of 10% Group

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt IV, L.P. · CIK 0001713467 · 10% owner · Possible Members of 10% Group

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Through DFP Sponsor, LLC

Disclosed balance after: 3,177,543

Underlying: Class A Common Stock · 3,177,543 shares

Expires 2026-11-12

F8 · kind: The Sponsor acquired the Private Placement Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Business Combination, the Private Placement Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Private Placement Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, the Sponsor elected to be governed by a Maximum Percentage (as defined in the Private Placement Warrants) of 4.9%.

F8 · price: The Sponsor acquired the Private Placement Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Business Combination, the Private Placement Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Private Placement Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, the Sponsor elected to be governed by a Maximum Percentage (as defined in the Private Placement Warrants) of 4.9%.

F8 · derivative.underlying_shares: The Sponsor acquired the Private Placement Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Business Combination, the Private Placement Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Private Placement Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, the Sponsor elected to be governed by a Maximum Percentage (as defined in the Private Placement Warrants) of 4.9%.

F8 · balance_after: The Sponsor acquired the Private Placement Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Business Combination, the Private Placement Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Private Placement Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, the Sponsor elected to be governed by a Maximum Percentage (as defined in the Private Placement Warrants) of 4.9%.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt, L.P. is the general partner of Deerfield Partners, L.P. ("Deerfield Partners"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV" and, together with Deerfield Partners, the "Funds"). Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt, L.P. and Deerfield Management Company, L.P. Each Fund holds a 37% membership interest in DFP Sponsor, LLC (the "Sponsor").

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds, the Sponsor and Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001193805-21-001590 · e621086_4-dfp.xml · derivative · entry 11

Flynn James E · CIK 0001352546 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt L.P. · CIK 0001010823 · 10% owner · Possible Members of 10% Group

DEERFIELD PARTNERS, L.P. · CIK 0001301041 · 10% owner · Possible Members of 10% Group

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt IV, L.P. · CIK 0001713467 · 10% owner · Possible Members of 10% Group

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield Management Company, L.P.

Disclosed balance after: 0

Underlying: Class A Common Stock · 85,113 shares

Expires not disclosed

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

F6 · derivative.exercise_price: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F1 · kind: Upon the closing of the Issuer's initial business combination, each share of Class B Common Stock converted (automatically in accordance with its terms) into one share of Class A Common Stock for no consideration.

F6 · derivative.exercise_date: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F6 · derivative.expiration_date: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt, L.P. is the general partner of Deerfield Partners, L.P. ("Deerfield Partners"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV" and, together with Deerfield Partners, the "Funds"). Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt, L.P. and Deerfield Management Company, L.P. Each Fund holds a 37% membership interest in DFP Sponsor, LLC (the "Sponsor").

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds, the Sponsor and Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F4 · ownership.nature: Steven Hochberg, a partner in Deerfield Management, served as a director and the chief executive officer of the Issuer until his resignation from such positions on November 12, 2021 (prior to the vote of the Issuer's stockholders in respect of the consummation of the Issuer's initial business combination and prior to the transactions reported herein). The Class A Common Stock owned by Steven Hochberg and reported herein is held for the benefit, and at the direction, of Deerfield Management.

SEC source: 0001193805-21-001590 · e621086_4-dfp.xml · derivative · entry 10

Flynn James E · CIK 0001352546 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt L.P. · CIK 0001010823 · 10% owner · Possible Members of 10% Group

DEERFIELD PARTNERS, L.P. · CIK 0001301041 · 10% owner · Possible Members of 10% Group

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt IV, L.P. · CIK 0001713467 · 10% owner · Possible Members of 10% Group

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Through DFP Sponsor, LLC

Disclosed balance after: 0

Underlying: Class A Common Stock · 40 shares

Expires not disclosed

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

F6 · derivative.exercise_price: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F1 · kind: Upon the closing of the Issuer's initial business combination, each share of Class B Common Stock converted (automatically in accordance with its terms) into one share of Class A Common Stock for no consideration.

F6 · derivative.exercise_date: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F6 · derivative.expiration_date: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt, L.P. is the general partner of Deerfield Partners, L.P. ("Deerfield Partners"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV" and, together with Deerfield Partners, the "Funds"). Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt, L.P. and Deerfield Management Company, L.P. Each Fund holds a 37% membership interest in DFP Sponsor, LLC (the "Sponsor").

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds, the Sponsor and Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001193805-21-001590 · e621086_4-dfp.xml · derivative · entry 9

Flynn James E · CIK 0001352546 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt L.P. · CIK 0001010823 · 10% owner · Possible Members of 10% Group

DEERFIELD PARTNERS, L.P. · CIK 0001301041 · 10% owner · Possible Members of 10% Group

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt IV, L.P. · CIK 0001713467 · 10% owner · Possible Members of 10% Group

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield Management Company, L.P.

Disclosed balance after: 85,113

Underlying: Class A Common Stock · 14,887 shares

Expires not disclosed

F6 · derivative.exercise_price: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F7 · kind: In connection with, and immediately prior to, the closing of the Issuer's initial business combination, pursuant to the Stockholder Support Agreement, dated as of June 28, 2021, DFP Sponsor, LLC (the "Sponsor") forfeited 707,960 shares of Class B Common Stock and Steven Hochberg forfeited 14,887 shares of Class B Common Stock for no consideration.

F6 · derivative.exercise_date: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F6 · derivative.expiration_date: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt, L.P. is the general partner of Deerfield Partners, L.P. ("Deerfield Partners"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV" and, together with Deerfield Partners, the "Funds"). Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt, L.P. and Deerfield Management Company, L.P. Each Fund holds a 37% membership interest in DFP Sponsor, LLC (the "Sponsor").

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds, the Sponsor and Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F4 · ownership.nature: Steven Hochberg, a partner in Deerfield Management, served as a director and the chief executive officer of the Issuer until his resignation from such positions on November 12, 2021 (prior to the vote of the Issuer's stockholders in respect of the consummation of the Issuer's initial business combination and prior to the transactions reported herein). The Class A Common Stock owned by Steven Hochberg and reported herein is held for the benefit, and at the direction, of Deerfield Management.

SEC source: 0001193805-21-001590 · e621086_4-dfp.xml · derivative · entry 8

Flynn James E · CIK 0001352546 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt L.P. · CIK 0001010823 · 10% owner · Possible Members of 10% Group

DEERFIELD PARTNERS, L.P. · CIK 0001301041 · 10% owner · Possible Members of 10% Group

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt IV, L.P. · CIK 0001713467 · 10% owner · Possible Members of 10% Group

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Through DFP Sponsor, LLC

Disclosed balance after: 40

Underlying: Class A Common Stock · 707,960 shares

Expires not disclosed

F6 · derivative.exercise_price: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F7 · kind: In connection with, and immediately prior to, the closing of the Issuer's initial business combination, pursuant to the Stockholder Support Agreement, dated as of June 28, 2021, DFP Sponsor, LLC (the "Sponsor") forfeited 707,960 shares of Class B Common Stock and Steven Hochberg forfeited 14,887 shares of Class B Common Stock for no consideration.

F6 · derivative.exercise_date: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F6 · derivative.expiration_date: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt, L.P. is the general partner of Deerfield Partners, L.P. ("Deerfield Partners"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV" and, together with Deerfield Partners, the "Funds"). Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt, L.P. and Deerfield Management Company, L.P. Each Fund holds a 37% membership interest in DFP Sponsor, LLC (the "Sponsor").

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds, the Sponsor and Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001193805-21-001590 · e621086_4-dfp.xml · derivative · entry 6

Flynn James E · CIK 0001352546 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt L.P. · CIK 0001010823 · 10% owner · Possible Members of 10% Group

DEERFIELD PARTNERS, L.P. · CIK 0001301041 · 10% owner · Possible Members of 10% Group

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt IV, L.P. · CIK 0001713467 · 10% owner · Possible Members of 10% Group

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield Private Design Fund IV, L.P.

Disclosed balance after: 58,945

Underlying: Class A Common Stock · 5,000,000 shares

Expires not disclosed

F5 · derivative.exercise_price: Each share of Series A Common Stock Equivalent Convertible Preferred Stock ("Common Equivalent Preferred Stock") is convertible into 100 shares of Class A Common Stock (subject to adjustment) at any time and from time to time at the election of the holder thereof. The Common Equivalent Preferred Stock has no expiration date. The terms of the Common Equivalent Preferred Stock restrict the conversion of such shares to the extent that, upon such conversion, the number of shares of Class A Common Stock then beneficially owned by the holder and its affiliates and any other person or entities with which such holder would constitute a Section 13(d) "group" would exceed 4.9% of the total number of shares of Class A Common Stock then outstanding.

F5 · derivative.exercise_date: Each share of Series A Common Stock Equivalent Convertible Preferred Stock ("Common Equivalent Preferred Stock") is convertible into 100 shares of Class A Common Stock (subject to adjustment) at any time and from time to time at the election of the holder thereof. The Common Equivalent Preferred Stock has no expiration date. The terms of the Common Equivalent Preferred Stock restrict the conversion of such shares to the extent that, upon such conversion, the number of shares of Class A Common Stock then beneficially owned by the holder and its affiliates and any other person or entities with which such holder would constitute a Section 13(d) "group" would exceed 4.9% of the total number of shares of Class A Common Stock then outstanding.

F5 · derivative.expiration_date: Each share of Series A Common Stock Equivalent Convertible Preferred Stock ("Common Equivalent Preferred Stock") is convertible into 100 shares of Class A Common Stock (subject to adjustment) at any time and from time to time at the election of the holder thereof. The Common Equivalent Preferred Stock has no expiration date. The terms of the Common Equivalent Preferred Stock restrict the conversion of such shares to the extent that, upon such conversion, the number of shares of Class A Common Stock then beneficially owned by the holder and its affiliates and any other person or entities with which such holder would constitute a Section 13(d) "group" would exceed 4.9% of the total number of shares of Class A Common Stock then outstanding.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt, L.P. is the general partner of Deerfield Partners, L.P. ("Deerfield Partners"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV" and, together with Deerfield Partners, the "Funds"). Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt, L.P. and Deerfield Management Company, L.P. Each Fund holds a 37% membership interest in DFP Sponsor, LLC (the "Sponsor").

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds, the Sponsor and Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001193805-21-001590 · e621086_4-dfp.xml · derivative · entry 5

Flynn James E · CIK 0001352546 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt L.P. · CIK 0001010823 · 10% owner · Possible Members of 10% Group

DEERFIELD PARTNERS, L.P. · CIK 0001301041 · 10% owner · Possible Members of 10% Group

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt IV, L.P. · CIK 0001713467 · 10% owner · Possible Members of 10% Group

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield Partners, L.P.

Disclosed balance after: 58,945

Underlying: Class A Common Stock · 5,000,000 shares

Expires not disclosed

F5 · derivative.exercise_price: Each share of Series A Common Stock Equivalent Convertible Preferred Stock ("Common Equivalent Preferred Stock") is convertible into 100 shares of Class A Common Stock (subject to adjustment) at any time and from time to time at the election of the holder thereof. The Common Equivalent Preferred Stock has no expiration date. The terms of the Common Equivalent Preferred Stock restrict the conversion of such shares to the extent that, upon such conversion, the number of shares of Class A Common Stock then beneficially owned by the holder and its affiliates and any other person or entities with which such holder would constitute a Section 13(d) "group" would exceed 4.9% of the total number of shares of Class A Common Stock then outstanding.

F5 · derivative.exercise_date: Each share of Series A Common Stock Equivalent Convertible Preferred Stock ("Common Equivalent Preferred Stock") is convertible into 100 shares of Class A Common Stock (subject to adjustment) at any time and from time to time at the election of the holder thereof. The Common Equivalent Preferred Stock has no expiration date. The terms of the Common Equivalent Preferred Stock restrict the conversion of such shares to the extent that, upon such conversion, the number of shares of Class A Common Stock then beneficially owned by the holder and its affiliates and any other person or entities with which such holder would constitute a Section 13(d) "group" would exceed 4.9% of the total number of shares of Class A Common Stock then outstanding.

F5 · derivative.expiration_date: Each share of Series A Common Stock Equivalent Convertible Preferred Stock ("Common Equivalent Preferred Stock") is convertible into 100 shares of Class A Common Stock (subject to adjustment) at any time and from time to time at the election of the holder thereof. The Common Equivalent Preferred Stock has no expiration date. The terms of the Common Equivalent Preferred Stock restrict the conversion of such shares to the extent that, upon such conversion, the number of shares of Class A Common Stock then beneficially owned by the holder and its affiliates and any other person or entities with which such holder would constitute a Section 13(d) "group" would exceed 4.9% of the total number of shares of Class A Common Stock then outstanding.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt, L.P. is the general partner of Deerfield Partners, L.P. ("Deerfield Partners"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV" and, together with Deerfield Partners, the "Funds"). Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt, L.P. and Deerfield Management Company, L.P. Each Fund holds a 37% membership interest in DFP Sponsor, LLC (the "Sponsor").

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds, the Sponsor and Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001193805-21-001590 · e621086_4-dfp.xml · nonDerivative · entry 2

Flynn James E · CIK 0001352546 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt L.P. · CIK 0001010823 · 10% owner · Possible Members of 10% Group

DEERFIELD PARTNERS, L.P. · CIK 0001301041 · 10% owner · Possible Members of 10% Group

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt IV, L.P. · CIK 0001713467 · 10% owner · Possible Members of 10% Group

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Through Deerfield Management Company, L.P.

Disclosed balance after: 85,113

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 · kind: Upon the closing of the Issuer's initial business combination, each share of Class B Common Stock converted (automatically in accordance with its terms) into one share of Class A Common Stock for no consideration.

F1 · price: Upon the closing of the Issuer's initial business combination, each share of Class B Common Stock converted (automatically in accordance with its terms) into one share of Class A Common Stock for no consideration.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt, L.P. is the general partner of Deerfield Partners, L.P. ("Deerfield Partners"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV" and, together with Deerfield Partners, the "Funds"). Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt, L.P. and Deerfield Management Company, L.P. Each Fund holds a 37% membership interest in DFP Sponsor, LLC (the "Sponsor").

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds, the Sponsor and Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

F4 · ownership.nature: Steven Hochberg, a partner in Deerfield Management, served as a director and the chief executive officer of the Issuer until his resignation from such positions on November 12, 2021 (prior to the vote of the Issuer's stockholders in respect of the consummation of the Issuer's initial business combination and prior to the transactions reported herein). The Class A Common Stock owned by Steven Hochberg and reported herein is held for the benefit, and at the direction, of Deerfield Management.

SEC source: 0001193805-21-001590 · e621086_4-dfp.xml · nonDerivative · entry 1

Flynn James E · CIK 0001352546 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt L.P. · CIK 0001010823 · 10% owner · Possible Members of 10% Group

DEERFIELD PARTNERS, L.P. · CIK 0001301041 · 10% owner · Possible Members of 10% Group

DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) · CIK 0001009258 · 10% owner · Possible Members of 10% Group

Deerfield Mgmt IV, L.P. · CIK 0001713467 · 10% owner · Possible Members of 10% Group

Deerfield Private Design Fund IV, L.P. · CIK 0001680307 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Indirect · Through DFP Sponsor, LLC

Disclosed balance after: 40

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 · kind: Upon the closing of the Issuer's initial business combination, each share of Class B Common Stock converted (automatically in accordance with its terms) into one share of Class A Common Stock for no consideration.

F1 · price: Upon the closing of the Issuer's initial business combination, each share of Class B Common Stock converted (automatically in accordance with its terms) into one share of Class A Common Stock for no consideration.

F2 · ownership.nature: This Form 4 is being filed by the undersigned as well as the entities listed on the Joint Filer Information Statement attached as an exhibit hereto (the "Reporting Persons"). Deerfield Mgmt, L.P. is the general partner of Deerfield Partners, L.P. ("Deerfield Partners"). Deerfield Mgmt IV, L.P. is the general partner of Deerfield Private Design Fund IV, L.P. ("Fund IV" and, together with Deerfield Partners, the "Funds"). Deerfield Management Company, L.P. ("Deerfield Management") is the investment manager of the Funds. James E. Flynn is the sole member of the general partner of each of Deerfield Mgmt IV, L.P., Deerfield Mgmt, L.P. and Deerfield Management Company, L.P. Each Fund holds a 37% membership interest in DFP Sponsor, LLC (the "Sponsor").

F3 · ownership.nature: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Funds, the Sponsor and Deerfield Management is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each Reporting Person disclaims beneficial ownership of any such securities, except to the extent of his/its indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that such Reporting Person is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001104659-21-140230 · tm2132979-16_4seq1.xml · derivative · entry 3

BARASCH RICHARD A · CIK 0001076341 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 100,000 shares

Expires not disclosed

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

F1 · derivative.exercise_price: The shares of Class B common stock converted into shares of the Issuer's Class A common stock on a one for basis in connection with the Business Combination (as deifned below), and have no expiration date.

F1 · price: The shares of Class B common stock converted into shares of the Issuer's Class A common stock on a one for basis in connection with the Business Combination (as deifned below), and have no expiration date.

F1 · derivative.exercise_date: The shares of Class B common stock converted into shares of the Issuer's Class A common stock on a one for basis in connection with the Business Combination (as deifned below), and have no expiration date.

F1 · derivative.expiration_date: The shares of Class B common stock converted into shares of the Issuer's Class A common stock on a one for basis in connection with the Business Combination (as deifned below), and have no expiration date.

SEC source: 0001104659-21-140230 · tm2132979-16_4seq1.xml · nonDerivative · entry 2

BARASCH RICHARD A · CIK 0001076341 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 85,113

F1 · price: The shares of Class B common stock converted into shares of the Issuer's Class A common stock on a one for basis in connection with the Business Combination (as deifned below), and have no expiration date.

F2 · acquired: On November 12, 2021, pursuant to that certain Agreement and Plan of Merger, dated as June 28, 2021, by and among DFP Healthcare Acqusitions Corp. ("DFP"), Orion Merger Sub I, Inc. ("First Merger Sub"), Orion Merger Sub II, LLC ("Second Merger Sub"), and TOI Parent, Inc. ("Old TOI"), First Merger Sub merged into Old TOI, with Old TOI being the surivivng corporation then Old TOI merged into Second Merger Sub, with Second Merger Sub being the surviving entity and a wholly owned subsidiary of DFP, which then changed its name to The Oncology Institute, Inc. (such transactions, collectively, the "Business Combination"). In connection with the Business Combination, the Class A common stock was converted to Common Stock of the Issuer, pursuant to a reclassification exempt under Rule 16b-7.

SEC source: 0001104659-21-140230 · tm2132979-16_4seq1.xml · nonDerivative · entry 1

BARASCH RICHARD A · CIK 0001076341 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 100,000

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: The shares of Class B common stock converted into shares of the Issuer's Class A common stock on a one for basis in connection with the Business Combination (as deifned below), and have no expiration date.

F2 · price: On November 12, 2021, pursuant to that certain Agreement and Plan of Merger, dated as June 28, 2021, by and among DFP Healthcare Acqusitions Corp. ("DFP"), Orion Merger Sub I, Inc. ("First Merger Sub"), Orion Merger Sub II, LLC ("Second Merger Sub"), and TOI Parent, Inc. ("Old TOI"), First Merger Sub merged into Old TOI, with Old TOI being the surivivng corporation then Old TOI merged into Second Merger Sub, with Second Merger Sub being the surviving entity and a wholly owned subsidiary of DFP, which then changed its name to The Oncology Institute, Inc. (such transactions, collectively, the "Business Combination"). In connection with the Business Combination, the Class A common stock was converted to Common Stock of the Issuer, pursuant to a reclassification exempt under Rule 16b-7.

F1 · acquired: The shares of Class B common stock converted into shares of the Issuer's Class A common stock on a one for basis in connection with the Business Combination (as deifned below), and have no expiration date.

F2 · acquired: On November 12, 2021, pursuant to that certain Agreement and Plan of Merger, dated as June 28, 2021, by and among DFP Healthcare Acqusitions Corp. ("DFP"), Orion Merger Sub I, Inc. ("First Merger Sub"), Orion Merger Sub II, LLC ("Second Merger Sub"), and TOI Parent, Inc. ("Old TOI"), First Merger Sub merged into Old TOI, with Old TOI being the surivivng corporation then Old TOI merged into Second Merger Sub, with Second Merger Sub being the surviving entity and a wholly owned subsidiary of DFP, which then changed its name to The Oncology Institute, Inc. (such transactions, collectively, the "Business Combination"). In connection with the Business Combination, the Class A common stock was converted to Common Stock of the Issuer, pursuant to a reclassification exempt under Rule 16b-7.

SEC source: 0001193805-21-001591 · e621087_4-dfp.xml · derivative · entry 4

DFP Sponsor LLC · CIK 0001806360 · 10% owner · Possible Members of 10% Group

HOCHBERG STEVEN · CIK 0001034123 · 10% owner · Possible Members of 10% Group

Atinsky Lawrence · CIK 0001674477 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,177,543

Underlying: Class A Common Stock · 3,177,543 shares

Expires 2026-11-12

F6 · kind: The Sponsor acquired the Private Placement Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Private Placement Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Private Placement Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, the Sponsor elected to be governed by a Maximum Percentage (as defined in the Private Placement Warrants) of 4.9%.

F6 · price: The Sponsor acquired the Private Placement Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Private Placement Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Private Placement Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, the Sponsor elected to be governed by a Maximum Percentage (as defined in the Private Placement Warrants) of 4.9%.

F6 · derivative.underlying_shares: The Sponsor acquired the Private Placement Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Private Placement Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Private Placement Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, the Sponsor elected to be governed by a Maximum Percentage (as defined in the Private Placement Warrants) of 4.9%.

F6 · balance_after: The Sponsor acquired the Private Placement Warrants from the Issuer in connection with the Issuer's initial public offering on March 13, 2020. As a result of the closing of the Issuer's initial business combination, the Private Placement Warrants will become exercisable as of the date that is 30 days after the closing of the Issuer's initial business combination (i.e., November 12, 2021). The Private Placement Warrants will expire on November 12, 2026 or earlier upon redemption or liquidation. Prior to the closing of the Issuer's initial business combination, the Sponsor elected to be governed by a Maximum Percentage (as defined in the Private Placement Warrants) of 4.9%.

F2 · ownership.direct: This Form 4 is being filed by DFP Sponsor, LLC (the "Sponsor"), as well as Steven Hochberg and Lawrence Atinsky, each of whom is a manager of the Sponsor.

F3 · ownership.direct: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Sponsor is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each or Steven Hochberg and Lawrence Atinsky disclaims beneficial ownership of any such securities, except to the extent of his indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that Mr. Hochberg or Mr. Atinsky is the beneficial owner of such securities for purposes of Section 16 or otherwise.

SEC source: 0001193805-21-001591 · e621087_4-dfp.xml · derivative · entry 3

DFP Sponsor LLC · CIK 0001806360 · 10% owner · Possible Members of 10% Group

HOCHBERG STEVEN · CIK 0001034123 · 10% owner · Possible Members of 10% Group

Atinsky Lawrence · CIK 0001674477 · 10% owner · Possible Members of 10% Group

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 40 shares

Expires not disclosed

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

F4 · derivative.exercise_price: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F1 · kind: Upon the closing of the Issuer's initial business combination, each share of Class B Common Stock converted (automatically in accordance with its terms) into one share of Class A Common Stock for no consideration.

F4 · derivative.exercise_date: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F4 · derivative.expiration_date: The shares of Class B Common Stock were convertible into shares of the Issuer's Class A Common Stock as described under the heading "Description of Securities" in the Issuer's Registration Statement on Form S-1 (File No. 333-236578) and had no expiration date.

F2 · ownership.direct: This Form 4 is being filed by DFP Sponsor, LLC (the "Sponsor"), as well as Steven Hochberg and Lawrence Atinsky, each of whom is a manager of the Sponsor.

F3 · ownership.direct: In accordance with Instruction 4(b)(iv) to Form 4, the entire amount of the Issuer's securities held by the Sponsor is reported herein. For purposes of Section 16 of the Securities Exchange Act of 1934, as amended, each or Steven Hochberg and Lawrence Atinsky disclaims beneficial ownership of any such securities, except to the extent of his indirect pecuniary interest therein, if any, and this report shall not be deemed an admission that Mr. Hochberg or Mr. Atinsky is the beneficial owner of such securities for purposes of Section 16 or otherwise.