OABI

SEC source: 0001846253-24-000095 · wk-form4_1733866905.xml · nonDerivative · entry 2

GUSTAFSON KURT A · CIK 0001462354 · Executive VP, Finance and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 200,661

F4 · kind: Represents a mandatory sale of shares to satisfy tax withholding obligations, upon the vesting and settlement of restricted stock units.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.04 to $4.16. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001846253-24-000097 · wk-form4_1733867055.xml · nonDerivative · entry 2

FOEHR MATTHEW W · CIK 0001237556 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,714,447

F4 · kind: Represents a mandatory sale of shares to satisfy tax withholding obligations, upon the vesting and settlement of restricted stock units.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.04 to $4.16. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001846253-24-000099 · wk-form4_1733867223.xml · nonDerivative · entry 2

Berkman Charles S · CIK 0001392266 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 323,385

F4 · kind: Represents a mandatory sale of shares to satisfy tax withholding obligations, upon the vesting and settlement of restricted stock units.

F5 · price: The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $4.04 to $4.16. The reporting person undertakes to provide the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

SEC source: 0001846253-24-000095 · wk-form4_1733866905.xml · derivative · entry 3

GUSTAFSON KURT A · CIK 0001462354 · Executive VP, Finance and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 137,453

Underlying: Common Stock · 46,501 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.

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F1 · derivative.exercise_date: Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on December 7, 2023.

F1 · derivative.expiration_date: Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on December 7, 2023.

SEC source: 0001846253-24-000095 · wk-form4_1733866905.xml · nonDerivative · entry 1

GUSTAFSON KURT A · CIK 0001462354 · Executive VP, Finance and CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 224,532

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 · shares: Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on December 7, 2023.

F2 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F3 · balance_after: The total includes 7,236 shares acquired on May 31, 2024 and 4,390 shares acquired on November 29, 2024, through the Issuer's Employee Stock Purchase Plan (ESPP). The total also includes the transfer of 10,292 OABI common stock shares on April 9, 2024 to the reporting person's ex-spouse per a domestic relations order.

SEC source: 0001846253-24-000097 · wk-form4_1733867055.xml · derivative · entry 3

FOEHR MATTHEW W · CIK 0001237556 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 235,395

Underlying: Common Stock · 26,555 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.

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F1 · derivative.exercise_date: Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on December 7, 2023.

F1 · derivative.expiration_date: Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on December 7, 2023.

SEC source: 0001846253-24-000097 · wk-form4_1733867055.xml · nonDerivative · entry 1

FOEHR MATTHEW W · CIK 0001237556 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,728,081

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 · shares: Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on December 7, 2023.

F2 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F3 · balance_after: The total includes 2,926 shares acquired on November 29, 2024, through the Issuer's Employee Stock Purchase Plan (ESPP).

SEC source: 0001846253-24-000099 · wk-form4_1733867223.xml · derivative · entry 3

Berkman Charles S · CIK 0001392266 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 98,945

Underlying: Common Stock · 15,621 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.

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F1 · derivative.exercise_date: Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on December 7, 2023.

F1 · derivative.expiration_date: Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on December 7, 2023.

SEC source: 0001846253-24-000099 · wk-form4_1733867223.xml · nonDerivative · entry 1

Berkman Charles S · CIK 0001392266 · Chief Legal Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 331,407

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 · shares: Represents the vesting of an RSU grant which occurs in three substantially equal annual installments beginning on December 7, 2023.

F2 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F3 · balance_after: The total includes 10,374 shares acquired on May 31, 2024, through the Issuer's Employee Stock Purchase Plan (ESPP).

SEC source: 0001846253-24-000090 · wk-form4_1732657271.xml · derivative · entry 4

FOEHR MATTHEW W · CIK 0001237556 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 396,484

Underlying: Common Stock · 68,360 shares

Expires 2033-04-07

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_date: The Stock Option grant vests and is exercisable as to 12.5% of the underlying shares 6 months after the grant date, and in 42 substantially equal monthly installments thereafter.

SEC source: 0001846253-24-000090 · wk-form4_1732657271.xml · derivative · entry 3

FOEHR MATTHEW W · CIK 0001237556 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 155,371

Underlying: Common Stock · 31,074 shares

Expires 2032-12-07

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_date: The Stock Option grant vests and is exercisable as to 12.5% of the underlying shares 6 months after the grant date, and in 42 substantially equal monthly installments thereafter.

SEC source: 0001846253-24-000090 · wk-form4_1732657271.xml · nonDerivative · entry 2

FOEHR MATTHEW W · CIK 0001237556 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,698,600

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.

SEC source: 0001846253-24-000090 · wk-form4_1732657271.xml · nonDerivative · entry 1

FOEHR MATTHEW W · CIK 0001237556 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,630,240

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.

SEC source: 0001846253-24-000079 · wk-form4_1730484723.xml · derivative · entry 2

Love Steven · CIK 0001410466 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,667

Underlying: Common Stock · 13,333 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.

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F1 · derivative.exercise_date: Represents the vesting of an RSU which occurs in three substantially equal annual installments, beginning November 1st, 2024, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

F1 · derivative.expiration_date: Represents the vesting of an RSU which occurs in three substantially equal annual installments, beginning November 1st, 2024, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

SEC source: 0001846253-24-000079 · wk-form4_1730484723.xml · nonDerivative · entry 1

Love Steven · CIK 0001410466 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,333

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 · shares: Represents the vesting of an RSU which occurs in three substantially equal annual installments, beginning November 1st, 2024, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

F2 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

SEC source: 0001846253-24-000081 · wk-form4_1730485055.xml · derivative · entry 2

Bertozzi Carolyn R · CIK 0001698766 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 37,769

Underlying: Common Stock · 17,769 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.

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F1 · derivative.exercise_date: Represents the vesting of an RSU which occurs in three substantially equal annual installments, beginning November 1st, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

F1 · derivative.expiration_date: Represents the vesting of an RSU which occurs in three substantially equal annual installments, beginning November 1st, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

SEC source: 0001846253-24-000081 · wk-form4_1730485055.xml · nonDerivative · entry 1

Bertozzi Carolyn R · CIK 0001698766 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,539

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 · shares: Represents the vesting of an RSU which occurs in three substantially equal annual installments, beginning November 1st, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

F2 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

SEC source: 0001846253-24-000065 · wk-form4_1720817981.xml · derivative · entry 2

Cochran Jennifer R. · CIK 0001872349 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 1,896 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.

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F1 · derivative.exercise_date: Represents the vesting of an RSU which occurs in two equal annual installments, beginning July 12th, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

F1 · derivative.expiration_date: Represents the vesting of an RSU which occurs in two equal annual installments, beginning July 12th, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

SEC source: 0001846253-24-000065 · wk-form4_1720817981.xml · nonDerivative · entry 1

Cochran Jennifer R. · CIK 0001872349 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,274

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 · shares: Represents the vesting of an RSU which occurs in two equal annual installments, beginning July 12th, 2023, subject to the Reporting Person's continued service to the Issuer through each such vesting date.

F2 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

SEC source: 0001104659-24-077398 · tm2418740-1_4seq1.xml · nonDerivative · entry 3

Avista Capital Managing Member V, LLC · CIK 0001957307 · 10% owner

Avista Capital Partners V GP, L.P. · CIK 0001957305 · 10% owner

Avista Capital Partners V, L.P. · CIK 0001774142 · 10% owner

Avista Capital Partners (Offshore) V, L.P. · CIK 0001774143 · 10% owner

Burgstahler David F · CIK 0001374179 · 10% owner

Dean Thompson · CIK 0001069096 · 10% owner

Tamaroff Joshua Alexander · CIK 0001705548 · Former 10% Owner and Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 15,862,815

F18 · shares: Represents the number of shares withheld by the Issuer to satisfy (i) the aggregate exercise price for the options and (ii) withholding taxes related to such exercise. No shares were sold by the Reporting Persons to satisfy the exercise price of the stock options.

F1 · ownership.nature: This form is being filed by each of the following Reporting Persons: (i) Avista Capital Partners V, L.P., a Delaware limited partnership ("ACP V Onshore"), (ii) Avista Capital Partners (Offshore) V, L.P., a Bermuda limited partnership ("ACP V Offshore"), (iii) Avista Capital Partners V GP, L.P., a Delaware limited partnership ("ACP V GP"), which is the general partner of ACP V Onshore and ACP V Offshore, (iv) Avista Capital Managing Member V, LLC, a Delaware limited liability company ("Avista Managing Member"), which is the general partner of ACP V GP, (v) each of Thompson Dean and David Burgstahler, who are the managers of Avista Managing Member (together with ACP V GP and Avista Managing Member, the "Avista Affiliates"), and (vi) Joshua Tamaroff, who is a former director of OmniAb, Inc. (f/k/a Avista Public Acquisition Corp. II) (the "Issuer").

F2 · ownership.nature: Mr. Tamaroff resigned as a director of the Issuer, effective as of June 28, 2024. As a result, Mr. Tamaroff is no longer subject to Section 16 reporting in connection with the securities of the Issuer.

F3 · ownership.nature: ACP V Onshore directly holds 7,296,895 shares of common stock and 5,224,114 warrants. ACP V Offshore directly holds 8,565,920 shares of common stock and 6,121,375 warrants. Each of the Avista Affiliates may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates disclaims beneficial ownership of the securities reported on this line item, except to the extent of their pecuniary interest therein, if any.

F11 · ownership.nature: Mr. Tamaroff, in his capacity as a partner at an affiliate of the Avista Affiliates, had previously assigned all rights, title and interest in any securities of the Issuer to an affiliate of the Avista Affiliates controlled by Mr. Dean and Mr. Burgstahler. The Avista Affiliates, ACP V Onshore and ACP V Offshore were each "directors by deputization" for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Each of the Avista Affiliates and Mr. Tamaroff may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates, ACP V Onshore and ACP V Offshore and Mr. Tamaroff disclaims beneficial ownership of the securities issued to Mr. Tamaroff, except to the extent of their pecuniary interest therein, if any.

SEC source: 0001104659-24-077398 · tm2418740-1_4seq1.xml · nonDerivative · entry 2

Avista Capital Managing Member V, LLC · CIK 0001957307 · 10% owner

Avista Capital Partners V GP, L.P. · CIK 0001957305 · 10% owner

Avista Capital Partners V, L.P. · CIK 0001774142 · 10% owner

Avista Capital Partners (Offshore) V, L.P. · CIK 0001774143 · 10% owner

Burgstahler David F · CIK 0001374179 · 10% owner

Dean Thompson · CIK 0001069096 · 10% owner

Tamaroff Joshua Alexander · CIK 0001705548 · Former 10% Owner and Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 15,992,372

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.

F17 · shares: Represents stock options exercised on a net share settlement basis. Accordingly, the Issuer is delivering an aggregate 7,111 shares of common stock to the Reporting Persons in connection with the option exercises, with no shares being sold externally.

F1 · ownership.nature: This form is being filed by each of the following Reporting Persons: (i) Avista Capital Partners V, L.P., a Delaware limited partnership ("ACP V Onshore"), (ii) Avista Capital Partners (Offshore) V, L.P., a Bermuda limited partnership ("ACP V Offshore"), (iii) Avista Capital Partners V GP, L.P., a Delaware limited partnership ("ACP V GP"), which is the general partner of ACP V Onshore and ACP V Offshore, (iv) Avista Capital Managing Member V, LLC, a Delaware limited liability company ("Avista Managing Member"), which is the general partner of ACP V GP, (v) each of Thompson Dean and David Burgstahler, who are the managers of Avista Managing Member (together with ACP V GP and Avista Managing Member, the "Avista Affiliates"), and (vi) Joshua Tamaroff, who is a former director of OmniAb, Inc. (f/k/a Avista Public Acquisition Corp. II) (the "Issuer").

F2 · ownership.nature: Mr. Tamaroff resigned as a director of the Issuer, effective as of June 28, 2024. As a result, Mr. Tamaroff is no longer subject to Section 16 reporting in connection with the securities of the Issuer.

F3 · ownership.nature: ACP V Onshore directly holds 7,296,895 shares of common stock and 5,224,114 warrants. ACP V Offshore directly holds 8,565,920 shares of common stock and 6,121,375 warrants. Each of the Avista Affiliates may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates disclaims beneficial ownership of the securities reported on this line item, except to the extent of their pecuniary interest therein, if any.

F11 · ownership.nature: Mr. Tamaroff, in his capacity as a partner at an affiliate of the Avista Affiliates, had previously assigned all rights, title and interest in any securities of the Issuer to an affiliate of the Avista Affiliates controlled by Mr. Dean and Mr. Burgstahler. The Avista Affiliates, ACP V Onshore and ACP V Offshore were each "directors by deputization" for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Each of the Avista Affiliates and Mr. Tamaroff may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates, ACP V Onshore and ACP V Offshore and Mr. Tamaroff disclaims beneficial ownership of the securities issued to Mr. Tamaroff, except to the extent of their pecuniary interest therein, if any.

SEC source: 0001104659-24-077398 · tm2418740-1_4seq1.xml · derivative · entry 8

Avista Capital Managing Member V, LLC · CIK 0001957307 · 10% owner

Avista Capital Partners V GP, L.P. · CIK 0001957305 · 10% owner

Avista Capital Partners V, L.P. · CIK 0001774142 · 10% owner

Avista Capital Partners (Offshore) V, L.P. · CIK 0001774143 · 10% owner

Burgstahler David F · CIK 0001374179 · 10% owner

Dean Thompson · CIK 0001069096 · 10% owner

Tamaroff Joshua Alexander · CIK 0001705548 · Former 10% Owner and Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 66,668

Underlying: Common stock, par value $0.0001 · 66,668 shares

Expires 2032-12-01

F16 · kind: Represents the number of unvested stock options forfeited in connection with Mr. Tamaroff's resignation as a director of the Issuer.

F14 · derivative.exercise_date: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest in three substantially similar annual installments beginning on November 1, 2023. The Form 4s filed by the Reporting Persons on December 5, 2022 and December 13, 2022 incorrectly reported that 161,849 stock options and 161,849 shares of common stock underlying such stock options were issued to Mr. Tamaroff.

F14 · derivative.underlying_shares: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest in three substantially similar annual installments beginning on November 1, 2023. The Form 4s filed by the Reporting Persons on December 5, 2022 and December 13, 2022 incorrectly reported that 161,849 stock options and 161,849 shares of common stock underlying such stock options were issued to Mr. Tamaroff.

F14 · balance_after: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest in three substantially similar annual installments beginning on November 1, 2023. The Form 4s filed by the Reporting Persons on December 5, 2022 and December 13, 2022 incorrectly reported that 161,849 stock options and 161,849 shares of common stock underlying such stock options were issued to Mr. Tamaroff.

F1 · ownership.nature: This form is being filed by each of the following Reporting Persons: (i) Avista Capital Partners V, L.P., a Delaware limited partnership ("ACP V Onshore"), (ii) Avista Capital Partners (Offshore) V, L.P., a Bermuda limited partnership ("ACP V Offshore"), (iii) Avista Capital Partners V GP, L.P., a Delaware limited partnership ("ACP V GP"), which is the general partner of ACP V Onshore and ACP V Offshore, (iv) Avista Capital Managing Member V, LLC, a Delaware limited liability company ("Avista Managing Member"), which is the general partner of ACP V GP, (v) each of Thompson Dean and David Burgstahler, who are the managers of Avista Managing Member (together with ACP V GP and Avista Managing Member, the "Avista Affiliates"), and (vi) Joshua Tamaroff, who is a former director of OmniAb, Inc. (f/k/a Avista Public Acquisition Corp. II) (the "Issuer").

F2 · ownership.nature: Mr. Tamaroff resigned as a director of the Issuer, effective as of June 28, 2024. As a result, Mr. Tamaroff is no longer subject to Section 16 reporting in connection with the securities of the Issuer.

F11 · ownership.nature: Mr. Tamaroff, in his capacity as a partner at an affiliate of the Avista Affiliates, had previously assigned all rights, title and interest in any securities of the Issuer to an affiliate of the Avista Affiliates controlled by Mr. Dean and Mr. Burgstahler. The Avista Affiliates, ACP V Onshore and ACP V Offshore were each "directors by deputization" for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Each of the Avista Affiliates and Mr. Tamaroff may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates, ACP V Onshore and ACP V Offshore and Mr. Tamaroff disclaims beneficial ownership of the securities issued to Mr. Tamaroff, except to the extent of their pecuniary interest therein, if any.

F14 · ownership.nature: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest in three substantially similar annual installments beginning on November 1, 2023. The Form 4s filed by the Reporting Persons on December 5, 2022 and December 13, 2022 incorrectly reported that 161,849 stock options and 161,849 shares of common stock underlying such stock options were issued to Mr. Tamaroff.

SEC source: 0001104659-24-077398 · tm2418740-1_4seq1.xml · derivative · entry 6

Avista Capital Managing Member V, LLC · CIK 0001957307 · 10% owner

Avista Capital Partners V GP, L.P. · CIK 0001957305 · 10% owner

Avista Capital Partners V, L.P. · CIK 0001774142 · 10% owner

Avista Capital Partners (Offshore) V, L.P. · CIK 0001774143 · 10% owner

Burgstahler David F · CIK 0001374179 · 10% owner

Dean Thompson · CIK 0001069096 · 10% owner

Tamaroff Joshua Alexander · CIK 0001705548 · Former 10% Owner and Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 0

Underlying: Common stock, par value $0.0001 · 40,000 shares

Expires 2034-06-18

F16 · kind: Represents the number of unvested stock options forfeited in connection with Mr. Tamaroff's resignation as a director of the Issuer.

F6 · derivative.exercise_date: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest and become exercisable in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F6 · derivative.underlying_shares: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest and become exercisable in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F6 · balance_after: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest and become exercisable in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F1 · ownership.nature: This form is being filed by each of the following Reporting Persons: (i) Avista Capital Partners V, L.P., a Delaware limited partnership ("ACP V Onshore"), (ii) Avista Capital Partners (Offshore) V, L.P., a Bermuda limited partnership ("ACP V Offshore"), (iii) Avista Capital Partners V GP, L.P., a Delaware limited partnership ("ACP V GP"), which is the general partner of ACP V Onshore and ACP V Offshore, (iv) Avista Capital Managing Member V, LLC, a Delaware limited liability company ("Avista Managing Member"), which is the general partner of ACP V GP, (v) each of Thompson Dean and David Burgstahler, who are the managers of Avista Managing Member (together with ACP V GP and Avista Managing Member, the "Avista Affiliates"), and (vi) Joshua Tamaroff, who is a former director of OmniAb, Inc. (f/k/a Avista Public Acquisition Corp. II) (the "Issuer").

F2 · ownership.nature: Mr. Tamaroff resigned as a director of the Issuer, effective as of June 28, 2024. As a result, Mr. Tamaroff is no longer subject to Section 16 reporting in connection with the securities of the Issuer.

F6 · ownership.nature: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest and become exercisable in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F11 · ownership.nature: Mr. Tamaroff, in his capacity as a partner at an affiliate of the Avista Affiliates, had previously assigned all rights, title and interest in any securities of the Issuer to an affiliate of the Avista Affiliates controlled by Mr. Dean and Mr. Burgstahler. The Avista Affiliates, ACP V Onshore and ACP V Offshore were each "directors by deputization" for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Each of the Avista Affiliates and Mr. Tamaroff may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates, ACP V Onshore and ACP V Offshore and Mr. Tamaroff disclaims beneficial ownership of the securities issued to Mr. Tamaroff, except to the extent of their pecuniary interest therein, if any.

SEC source: 0001104659-24-077398 · tm2418740-1_4seq1.xml · derivative · entry 5

Avista Capital Managing Member V, LLC · CIK 0001957307 · 10% owner

Avista Capital Partners V GP, L.P. · CIK 0001957305 · 10% owner

Avista Capital Partners V, L.P. · CIK 0001774142 · 10% owner

Avista Capital Partners (Offshore) V, L.P. · CIK 0001774143 · 10% owner

Burgstahler David F · CIK 0001374179 · 10% owner

Dean Thompson · CIK 0001069096 · 10% owner

Tamaroff Joshua Alexander · CIK 0001705548 · Former 10% Owner and Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 0

Underlying: Common stock, par value $0.0001 · 35,538 shares

Expires not disclosed

F4 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Vesting occurs in three substantially equal annual installments, beginning November 1, 2023.

F15 · kind: Represents the number of unvested RSUs forfeited in connection with Mr. Tamaroff's resignation as a director of the Issuer.

F4 · derivative.exercise_date: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Vesting occurs in three substantially equal annual installments, beginning November 1, 2023.

F10 · derivative.exercise_date: Represents restricted stock units ("RSUs") granted to Mr. Tamaroff in his capacity as a director of the Issuer, which RSUs vest as to the shares underlying the award in three substantially similar annual installments beginning on November 1, 2023, subject to Mr. Tamaroff's continuing service as a director of the Issuer through the applicable vesting date; provided, that the RSUs shall vest in full (i) in the event of a Change of Control (as defined in the Issuer's 2022 Incentive Award Plan), to the extent Mr. Tamaroff is serving as a director at the time of such transaction, or (ii) in the event that Mr. Tamaroff ceases to serve as a director by reason of death or Permanent Disability (as defined in the Issuer's 2022 Incentive Award Plan). Mr. Tamaroff resigned as a director of the Issuer, effective as of June 28, 2024.

F4 · derivative.expiration_date: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Vesting occurs in three substantially equal annual installments, beginning November 1, 2023.

F10 · derivative.expiration_date: Represents restricted stock units ("RSUs") granted to Mr. Tamaroff in his capacity as a director of the Issuer, which RSUs vest as to the shares underlying the award in three substantially similar annual installments beginning on November 1, 2023, subject to Mr. Tamaroff's continuing service as a director of the Issuer through the applicable vesting date; provided, that the RSUs shall vest in full (i) in the event of a Change of Control (as defined in the Issuer's 2022 Incentive Award Plan), to the extent Mr. Tamaroff is serving as a director at the time of such transaction, or (ii) in the event that Mr. Tamaroff ceases to serve as a director by reason of death or Permanent Disability (as defined in the Issuer's 2022 Incentive Award Plan). Mr. Tamaroff resigned as a director of the Issuer, effective as of June 28, 2024.

F4 · balance_after: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Vesting occurs in three substantially equal annual installments, beginning November 1, 2023.

F10 · balance_after: Represents restricted stock units ("RSUs") granted to Mr. Tamaroff in his capacity as a director of the Issuer, which RSUs vest as to the shares underlying the award in three substantially similar annual installments beginning on November 1, 2023, subject to Mr. Tamaroff's continuing service as a director of the Issuer through the applicable vesting date; provided, that the RSUs shall vest in full (i) in the event of a Change of Control (as defined in the Issuer's 2022 Incentive Award Plan), to the extent Mr. Tamaroff is serving as a director at the time of such transaction, or (ii) in the event that Mr. Tamaroff ceases to serve as a director by reason of death or Permanent Disability (as defined in the Issuer's 2022 Incentive Award Plan). Mr. Tamaroff resigned as a director of the Issuer, effective as of June 28, 2024.

F1 · ownership.nature: This form is being filed by each of the following Reporting Persons: (i) Avista Capital Partners V, L.P., a Delaware limited partnership ("ACP V Onshore"), (ii) Avista Capital Partners (Offshore) V, L.P., a Bermuda limited partnership ("ACP V Offshore"), (iii) Avista Capital Partners V GP, L.P., a Delaware limited partnership ("ACP V GP"), which is the general partner of ACP V Onshore and ACP V Offshore, (iv) Avista Capital Managing Member V, LLC, a Delaware limited liability company ("Avista Managing Member"), which is the general partner of ACP V GP, (v) each of Thompson Dean and David Burgstahler, who are the managers of Avista Managing Member (together with ACP V GP and Avista Managing Member, the "Avista Affiliates"), and (vi) Joshua Tamaroff, who is a former director of OmniAb, Inc. (f/k/a Avista Public Acquisition Corp. II) (the "Issuer").

F2 · ownership.nature: Mr. Tamaroff resigned as a director of the Issuer, effective as of June 28, 2024. As a result, Mr. Tamaroff is no longer subject to Section 16 reporting in connection with the securities of the Issuer.

F3 · ownership.nature: ACP V Onshore directly holds 7,296,895 shares of common stock and 5,224,114 warrants. ACP V Offshore directly holds 8,565,920 shares of common stock and 6,121,375 warrants. Each of the Avista Affiliates may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates disclaims beneficial ownership of the securities reported on this line item, except to the extent of their pecuniary interest therein, if any.

F11 · ownership.nature: Mr. Tamaroff, in his capacity as a partner at an affiliate of the Avista Affiliates, had previously assigned all rights, title and interest in any securities of the Issuer to an affiliate of the Avista Affiliates controlled by Mr. Dean and Mr. Burgstahler. The Avista Affiliates, ACP V Onshore and ACP V Offshore were each "directors by deputization" for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Each of the Avista Affiliates and Mr. Tamaroff may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates, ACP V Onshore and ACP V Offshore and Mr. Tamaroff disclaims beneficial ownership of the securities issued to Mr. Tamaroff, except to the extent of their pecuniary interest therein, if any.

SEC source: 0001104659-24-077398 · tm2418740-1_4seq1.xml · derivative · entry 4

Avista Capital Managing Member V, LLC · CIK 0001957307 · 10% owner

Avista Capital Partners V GP, L.P. · CIK 0001957305 · 10% owner

Avista Capital Partners V, L.P. · CIK 0001774142 · 10% owner

Avista Capital Partners (Offshore) V, L.P. · CIK 0001774143 · 10% owner

Burgstahler David F · CIK 0001374179 · 10% owner

Dean Thompson · CIK 0001069096 · 10% owner

Tamaroff Joshua Alexander · CIK 0001705548 · Former 10% Owner and Director

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 0

Underlying: Common stock, par value $0.0001 · 20,000 shares

Expires not disclosed

F5 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F15 · kind: Represents the number of unvested RSUs forfeited in connection with Mr. Tamaroff's resignation as a director of the Issuer.

F5 · derivative.exercise_date: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F5 · derivative.expiration_date: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F5 · balance_after: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F1 · ownership.nature: This form is being filed by each of the following Reporting Persons: (i) Avista Capital Partners V, L.P., a Delaware limited partnership ("ACP V Onshore"), (ii) Avista Capital Partners (Offshore) V, L.P., a Bermuda limited partnership ("ACP V Offshore"), (iii) Avista Capital Partners V GP, L.P., a Delaware limited partnership ("ACP V GP"), which is the general partner of ACP V Onshore and ACP V Offshore, (iv) Avista Capital Managing Member V, LLC, a Delaware limited liability company ("Avista Managing Member"), which is the general partner of ACP V GP, (v) each of Thompson Dean and David Burgstahler, who are the managers of Avista Managing Member (together with ACP V GP and Avista Managing Member, the "Avista Affiliates"), and (vi) Joshua Tamaroff, who is a former director of OmniAb, Inc. (f/k/a Avista Public Acquisition Corp. II) (the "Issuer").

F2 · ownership.nature: Mr. Tamaroff resigned as a director of the Issuer, effective as of June 28, 2024. As a result, Mr. Tamaroff is no longer subject to Section 16 reporting in connection with the securities of the Issuer.

F3 · ownership.nature: ACP V Onshore directly holds 7,296,895 shares of common stock and 5,224,114 warrants. ACP V Offshore directly holds 8,565,920 shares of common stock and 6,121,375 warrants. Each of the Avista Affiliates may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates disclaims beneficial ownership of the securities reported on this line item, except to the extent of their pecuniary interest therein, if any.

F11 · ownership.nature: Mr. Tamaroff, in his capacity as a partner at an affiliate of the Avista Affiliates, had previously assigned all rights, title and interest in any securities of the Issuer to an affiliate of the Avista Affiliates controlled by Mr. Dean and Mr. Burgstahler. The Avista Affiliates, ACP V Onshore and ACP V Offshore were each "directors by deputization" for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Each of the Avista Affiliates and Mr. Tamaroff may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates, ACP V Onshore and ACP V Offshore and Mr. Tamaroff disclaims beneficial ownership of the securities issued to Mr. Tamaroff, except to the extent of their pecuniary interest therein, if any.

SEC source: 0001846253-24-000058 · wk-form4_1719521703.xml · derivative · entry 4

FOEHR MATTHEW W · CIK 0001237556 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 464,844

Underlying: Common Stock · 41,015 shares

Expires 2033-04-07

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.

F2 · derivative.exercise_date: The Stock Option grant vests and is exercisable as to 12.5% of the underlying shares 6 months after the grant date, and in 42 substantially equal monthly installments thereafter.

SEC source: 0001846253-24-000058 · wk-form4_1719521703.xml · derivative · entry 3

FOEHR MATTHEW W · CIK 0001237556 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 186,445

Underlying: Common Stock · 18,644 shares

Expires 2032-12-07

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.

F2 · derivative.exercise_date: The Stock Option grant vests and is exercisable as to 12.5% of the underlying shares 6 months after the grant date, and in 42 substantially equal monthly installments thereafter.

SEC source: 0001846253-24-000058 · wk-form4_1719521703.xml · nonDerivative · entry 2

FOEHR MATTHEW W · CIK 0001237556 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,599,166

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.

SEC source: 0001846253-24-000058 · wk-form4_1719521703.xml · nonDerivative · entry 1

FOEHR MATTHEW W · CIK 0001237556 · Director · President and CEO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,558,151

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 · balance_after: The total includes 2,842 shares acquired on May 31, 2024, through the Issuer's Employee Stock Purchase Plan (ESPP).

SEC source: 0001104659-24-073984 · tm2417785-1_4seq1.xml · derivative · entry 5

Avista Capital Managing Member V, LLC · CIK 0001957307 · Director · 10% owner

Avista Capital Partners V GP, L.P. · CIK 0001957305 · Director · 10% owner

Avista Capital Partners V, L.P. · CIK 0001774142 · Director · 10% owner

Avista Capital Partners (Offshore) V, L.P. · CIK 0001774143 · Director · 10% owner

Burgstahler David F · CIK 0001374179 · Director · 10% owner

Dean Thompson · CIK 0001069096 · Director · 10% owner

Tamaroff Joshua Alexander · CIK 0001705548 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 40,000

Underlying: Common stock, par value $0.0001 · 40,000 shares

Expires 2034-06-18

F7 · kind: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest and become exercisable in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F7 · derivative.exercise_date: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest and become exercisable in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F7 · derivative.underlying_shares: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest and become exercisable in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F7 · balance_after: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest and become exercisable in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F1 · ownership.nature: This form is being filed by each of the following Reporting Persons: (i) Avista Capital Partners V, L.P., a Delaware limited partnership ("ACP V Onshore"), (ii) Avista Capital Partners (Offshore) V, L.P., a Bermuda limited partnership ("ACP V Offshore"), (iii) Avista Capital Partners V GP, L.P., a Delaware limited partnership ("ACP V GP"), which is the general partner of ACP V Onshore and ACP V Offshore, (iv) Avista Capital Managing Member V, LLC, a Delaware limited liability company ("Avista Managing Member"), which is the general partner of ACP V GP, (v) each of Thompson Dean and David Burgstahler, who are the managers of Avista Managing Member (together with ACP V GP and Avista Managing Member, the "Avista Affiliates"), and (vi) Joshua Tamaroff, who is a director of OmniAb, Inc. (f/k/a Avista Public Acquisition Corp. II) (the "Issuer").

F7 · ownership.nature: Represents stock options granted to Mr. Tamaroff in his capacity as a director of the Issuer, which stock options vest and become exercisable in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F12 · ownership.nature: Mr. Tamaroff is a partner at an affiliate of the Avista Affiliates and has assigned all rights, title and interest in any securities of the Issuer to an affiliate of the Avista Affiliates controlled by Mr. Dean and Mr. Burgstahler. The Avista Affiliates, ACP V Onshore and ACP V Offshore are each "directors by deputization" for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Each of the Avista Affiliates and Mr. Tamaroff may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates, ACP V Onshore and ACP V Offshore and Mr. Tamaroff disclaims beneficial ownership of the securities issued to Mr. Tamaroff, except to the extent of their pecuniary interest therein, if any.

SEC source: 0001104659-24-073984 · tm2417785-1_4seq1.xml · derivative · entry 4

Avista Capital Managing Member V, LLC · CIK 0001957307 · Director · 10% owner

Avista Capital Partners V GP, L.P. · CIK 0001957305 · Director · 10% owner

Avista Capital Partners V, L.P. · CIK 0001774142 · Director · 10% owner

Avista Capital Partners (Offshore) V, L.P. · CIK 0001774143 · Director · 10% owner

Burgstahler David F · CIK 0001374179 · Director · 10% owner

Dean Thompson · CIK 0001069096 · Director · 10% owner

Tamaroff Joshua Alexander · CIK 0001705548 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 0

Underlying: Common stock, par value $0.0001 · 20,000 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.

F5 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs vested in full on June 18, 2024, the date of the next annual meeting of the Company's stockholders following the grant date.

F4 · kind: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. Vesting occurs in three substantially equal annual installments, beginning November 1, 2023.

F5 · price: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs vested in full on June 18, 2024, the date of the next annual meeting of the Company's stockholders following the grant date.

F5 · derivative.exercise_date: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs vested in full on June 18, 2024, the date of the next annual meeting of the Company's stockholders following the grant date.

F5 · derivative.expiration_date: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs vested in full on June 18, 2024, the date of the next annual meeting of the Company's stockholders following the grant date.

F5 · balance_after: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs vested in full on June 18, 2024, the date of the next annual meeting of the Company's stockholders following the grant date.

F1 · ownership.nature: This form is being filed by each of the following Reporting Persons: (i) Avista Capital Partners V, L.P., a Delaware limited partnership ("ACP V Onshore"), (ii) Avista Capital Partners (Offshore) V, L.P., a Bermuda limited partnership ("ACP V Offshore"), (iii) Avista Capital Partners V GP, L.P., a Delaware limited partnership ("ACP V GP"), which is the general partner of ACP V Onshore and ACP V Offshore, (iv) Avista Capital Managing Member V, LLC, a Delaware limited liability company ("Avista Managing Member"), which is the general partner of ACP V GP, (v) each of Thompson Dean and David Burgstahler, who are the managers of Avista Managing Member (together with ACP V GP and Avista Managing Member, the "Avista Affiliates"), and (vi) Joshua Tamaroff, who is a director of OmniAb, Inc. (f/k/a Avista Public Acquisition Corp. II) (the "Issuer").

F2 · ownership.nature: ACP V Onshore directly holds 7,293,624 shares of common stock and 5,224,114 warrants. ACP V Offshore directly holds 8,562,080 shares of common stock and 6,121,375 warrants. Each of the Avista Affiliates may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates disclaims beneficial ownership of the securities reported on this line item, except to the extent of their pecuniary interest therein, if any.

F12 · ownership.nature: Mr. Tamaroff is a partner at an affiliate of the Avista Affiliates and has assigned all rights, title and interest in any securities of the Issuer to an affiliate of the Avista Affiliates controlled by Mr. Dean and Mr. Burgstahler. The Avista Affiliates, ACP V Onshore and ACP V Offshore are each "directors by deputization" for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Each of the Avista Affiliates and Mr. Tamaroff may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates, ACP V Onshore and ACP V Offshore and Mr. Tamaroff disclaims beneficial ownership of the securities issued to Mr. Tamaroff, except to the extent of their pecuniary interest therein, if any.

SEC source: 0001104659-24-073984 · tm2417785-1_4seq1.xml · derivative · entry 2

Avista Capital Managing Member V, LLC · CIK 0001957307 · Director · 10% owner

Avista Capital Partners V GP, L.P. · CIK 0001957305 · Director · 10% owner

Avista Capital Partners V, L.P. · CIK 0001774142 · Director · 10% owner

Avista Capital Partners (Offshore) V, L.P. · CIK 0001774143 · Director · 10% owner

Burgstahler David F · CIK 0001374179 · Director · 10% owner

Dean Thompson · CIK 0001069096 · Director · 10% owner

Tamaroff Joshua Alexander · CIK 0001705548 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 55,538

Underlying: Common stock, par value $0.0001 · 20,000 shares

Expires not disclosed

F6 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F6 · kind: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F6 · derivative.exercise_date: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F6 · derivative.expiration_date: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F6 · balance_after: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs shall vest in full on the earlier of (i) the date of the next annual meeting of the Company's stockholders following the grant date and (ii) the first anniversary of the grant date.

F1 · ownership.nature: This form is being filed by each of the following Reporting Persons: (i) Avista Capital Partners V, L.P., a Delaware limited partnership ("ACP V Onshore"), (ii) Avista Capital Partners (Offshore) V, L.P., a Bermuda limited partnership ("ACP V Offshore"), (iii) Avista Capital Partners V GP, L.P., a Delaware limited partnership ("ACP V GP"), which is the general partner of ACP V Onshore and ACP V Offshore, (iv) Avista Capital Managing Member V, LLC, a Delaware limited liability company ("Avista Managing Member"), which is the general partner of ACP V GP, (v) each of Thompson Dean and David Burgstahler, who are the managers of Avista Managing Member (together with ACP V GP and Avista Managing Member, the "Avista Affiliates"), and (vi) Joshua Tamaroff, who is a director of OmniAb, Inc. (f/k/a Avista Public Acquisition Corp. II) (the "Issuer").

F2 · ownership.nature: ACP V Onshore directly holds 7,293,624 shares of common stock and 5,224,114 warrants. ACP V Offshore directly holds 8,562,080 shares of common stock and 6,121,375 warrants. Each of the Avista Affiliates may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates disclaims beneficial ownership of the securities reported on this line item, except to the extent of their pecuniary interest therein, if any.

F12 · ownership.nature: Mr. Tamaroff is a partner at an affiliate of the Avista Affiliates and has assigned all rights, title and interest in any securities of the Issuer to an affiliate of the Avista Affiliates controlled by Mr. Dean and Mr. Burgstahler. The Avista Affiliates, ACP V Onshore and ACP V Offshore are each "directors by deputization" for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Each of the Avista Affiliates and Mr. Tamaroff may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates, ACP V Onshore and ACP V Offshore and Mr. Tamaroff disclaims beneficial ownership of the securities issued to Mr. Tamaroff, except to the extent of their pecuniary interest therein, if any.

SEC source: 0001104659-24-073984 · tm2417785-1_4seq1.xml · nonDerivative · entry 1

Avista Capital Managing Member V, LLC · CIK 0001957307 · Director · 10% owner

Avista Capital Partners V GP, L.P. · CIK 0001957305 · Director · 10% owner

Avista Capital Partners V, L.P. · CIK 0001774142 · Director · 10% owner

Avista Capital Partners (Offshore) V, L.P. · CIK 0001774143 · Director · 10% owner

Burgstahler David F · CIK 0001374179 · Director · 10% owner

Dean Thompson · CIK 0001069096 · Director · 10% owner

Tamaroff Joshua Alexander · CIK 0001705548 · Director · 10% owner

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

10b5-1 filing: No plan indicated

Ownership: Indirect · See Notes

Disclosed balance after: 15,855,704

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.

F3 · kind: Vesting of restricted stock units ("RSUs") previously granted to the Reporting Persons.

F5 · price: Each RSU represents a contingent right to receive one share of the Issuer's Common Stock. The RSUs vested in full on June 18, 2024, the date of the next annual meeting of the Company's stockholders following the grant date.

F8 · balance_after: In accordance with the letter agreement, dated March 23, 2022, by and among the Issuer, Avista Acquisition LP II, a Cayman Islands limited partnership ("Avista Sponsor"), and other parties (the "Letter Agreement"), if the Triggering Event (as defined in the Letter Agreement) has not occurred during the Earnout Period (as defined in the Letter Agreement), 1,293,299 shares of common stock will be automatically forfeited to the Issuer for no consideration.

F9 · balance_after: As a result of the liquidation and distribution of all of the assets of the Avista Sponsor to its limited partners, ACP V Onshore and ACP V Offshore (the "Avista Sponsor Liquidating Distribution"), and pursuant to a Joinder to the Letter Agreement entered into on December 9, 2022 between ACP V Onshore, ACP V Offshore, Avista Sponsor and the Issuer, ACP V Onshore directly holds 595,508 of the shares of common stock subject to forfeiture pursuant to the terms of the Letter Agreement, and ACP V Offshore holds 697,791 of the shares of common stock subject to forfeiture pursuant to the terms of the Letter Agreement.

F10 · balance_after: Additionally, in connection with the Avista Sponsor Liquidating Distribution, each of ACP V Onshore and ACP V Offshore provided to the Issuer an agreement stating that they will each be bound by the transfer restrictions included in the Amended and Restated Registration and Stockholder Rights Agreement, dated as of November 1, 2022, among the Issuer, the Sponsor and the other signatories thereto (the "A&R RSRA") for the duration of the Founder Shares Lock Up Period (as defined in the A&R RSRA).

F1 · ownership.nature: This form is being filed by each of the following Reporting Persons: (i) Avista Capital Partners V, L.P., a Delaware limited partnership ("ACP V Onshore"), (ii) Avista Capital Partners (Offshore) V, L.P., a Bermuda limited partnership ("ACP V Offshore"), (iii) Avista Capital Partners V GP, L.P., a Delaware limited partnership ("ACP V GP"), which is the general partner of ACP V Onshore and ACP V Offshore, (iv) Avista Capital Managing Member V, LLC, a Delaware limited liability company ("Avista Managing Member"), which is the general partner of ACP V GP, (v) each of Thompson Dean and David Burgstahler, who are the managers of Avista Managing Member (together with ACP V GP and Avista Managing Member, the "Avista Affiliates"), and (vi) Joshua Tamaroff, who is a director of OmniAb, Inc. (f/k/a Avista Public Acquisition Corp. II) (the "Issuer").

F2 · ownership.nature: ACP V Onshore directly holds 7,293,624 shares of common stock and 5,224,114 warrants. ACP V Offshore directly holds 8,562,080 shares of common stock and 6,121,375 warrants. Each of the Avista Affiliates may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates disclaims beneficial ownership of the securities reported on this line item, except to the extent of their pecuniary interest therein, if any.

F12 · ownership.nature: Mr. Tamaroff is a partner at an affiliate of the Avista Affiliates and has assigned all rights, title and interest in any securities of the Issuer to an affiliate of the Avista Affiliates controlled by Mr. Dean and Mr. Burgstahler. The Avista Affiliates, ACP V Onshore and ACP V Offshore are each "directors by deputization" for the purposes of Section 16 of the Securities Exchange Act of 1934, as amended. Each of the Avista Affiliates and Mr. Tamaroff may be deemed to beneficially own the securities reported on this line item to the extent of their respective pecuniary interests. Each of the Avista Affiliates, ACP V Onshore and ACP V Offshore and Mr. Tamaroff disclaims beneficial ownership of the securities issued to Mr. Tamaroff, except to the extent of their pecuniary interest therein, if any.

F14 · ownership.nature: In connection with the Amended and Restated Forward Purchase Agreement, dated March 23, 2022, by and among the Issuer, Avista Sponsor and other parties (the "A&R Forward Purchase Agreement"), Avista Sponsor purchased an aggregate 3,112,156 warrants in private placements from the Issuer, each exercisable to purchase (subject, initially, to the satisfaction of certain material conditions) one share of common stock for $11.50 per share. The material conditions to exercise were satisfied on the Closing, and the warrants by their terms became exercisable (including by cash settlement) December 31, 2022.

SEC source: 0001846253-24-000052 · wk-form4_1719003731.xml · derivative · entry 4

Cochran Jennifer R. · CIK 0001872349 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Common Stock · 40,000 shares

Expires 2034-06-18

F4 · derivative.exercise_date: Each Stock Option shall vest and become exercisable in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000052 · wk-form4_1719003731.xml · derivative · entry 3

Cochran Jennifer R. · CIK 0001872349 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,896

Underlying: Common Stock · 20,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F3 · derivative.exercise_date: The RSUs shall vest in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F3 · derivative.expiration_date: The RSUs shall vest in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000052 · wk-form4_1719003731.xml · derivative · entry 2

Cochran Jennifer R. · CIK 0001872349 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,896

Underlying: Common Stock · 20,000 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.

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F1 · derivative.exercise_date: Represents the vesting of an RSU granted on June 23, 2023, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F1 · derivative.expiration_date: Represents the vesting of an RSU granted on June 23, 2023, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000052 · wk-form4_1719003731.xml · nonDerivative · entry 1

Cochran Jennifer R. · CIK 0001872349 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 113,378

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 · shares: Represents the vesting of an RSU granted on June 23, 2023, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F2 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

SEC source: 0001846253-24-000050 · wk-form4_1719003670.xml · derivative · entry 4

Boyce Sarah · CIK 0001629383 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Common Stock · 40,000 shares

Expires 2034-06-18

F4 · derivative.exercise_date: Each Stock Option shall vest and become exercisable in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000050 · wk-form4_1719003670.xml · derivative · entry 3

Boyce Sarah · CIK 0001629383 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,000

Underlying: Common Stock · 20,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F3 · derivative.exercise_date: The RSUs shall vest in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F3 · derivative.expiration_date: The RSUs shall vest in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000050 · wk-form4_1719003670.xml · derivative · entry 2

Boyce Sarah · CIK 0001629383 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 20,000 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.

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F1 · derivative.exercise_date: Represents the vesting of an RSU granted on June 23, 2023, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F1 · derivative.expiration_date: Represents the vesting of an RSU granted on June 23, 2023, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000050 · wk-form4_1719003670.xml · nonDerivative · entry 1

Boyce Sarah · CIK 0001629383 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,381

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 · shares: Represents the vesting of an RSU granted on June 23, 2023, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F2 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

SEC source: 0001846253-24-000056 · wk-form4_1719003855.xml · derivative · entry 2

Love Steven · CIK 0001410466 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Common Stock · 40,000 shares

Expires 2034-06-18

F3 · derivative.exercise_date: Each Stock Option shall vest and become exercisable in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000056 · wk-form4_1719003855.xml · derivative · entry 1

Love Steven · CIK 0001410466 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,000

Underlying: Common Stock · 20,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F2 · derivative.exercise_date: The RSUs shall vest in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F2 · derivative.expiration_date: The RSUs shall vest in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000054 · wk-form4_1719003795.xml · derivative · entry 4

HIGGINS JOHN L · CIK 0001208906 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Common Stock · 40,000 shares

Expires 2034-06-18

F4 · derivative.exercise_date: Each Stock Option shall vest and become exercisable in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000054 · wk-form4_1719003795.xml · derivative · entry 3

HIGGINS JOHN L · CIK 0001208906 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 46,344

Underlying: Common Stock · 20,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F3 · derivative.exercise_date: The RSUs shall vest in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F3 · derivative.expiration_date: The RSUs shall vest in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000054 · wk-form4_1719003795.xml · derivative · entry 2

HIGGINS JOHN L · CIK 0001208906 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,344

Underlying: Common Stock · 20,000 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.

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F1 · derivative.exercise_date: Represents the vesting of an RSU granted on June 23, 2023, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F1 · derivative.expiration_date: Represents the vesting of an RSU granted on June 23, 2023, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000054 · wk-form4_1719003795.xml · nonDerivative · entry 1

HIGGINS JOHN L · CIK 0001208906 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,623,965

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 · shares: Represents the vesting of an RSU granted on June 23, 2023, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F2 · price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

SEC source: 0001846253-24-000048 · wk-form4_1719003610.xml · derivative · entry 4

Bertozzi Carolyn R · CIK 0001698766 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 40,000

Underlying: Common Stock · 40,000 shares

Expires 2034-06-18

F4 · derivative.exercise_date: Each Stock Option shall vest and become exercisable in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000048 · wk-form4_1719003610.xml · derivative · entry 3

Bertozzi Carolyn R · CIK 0001698766 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 55,538

Underlying: Common Stock · 20,000 shares

Expires not disclosed

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F3 · derivative.exercise_date: The RSUs shall vest in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F3 · derivative.expiration_date: The RSUs shall vest in full on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

SEC source: 0001846253-24-000048 · wk-form4_1719003610.xml · derivative · entry 2

Bertozzi Carolyn R · CIK 0001698766 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,538

Underlying: Common Stock · 20,000 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.

F2 · derivative.exercise_price: Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Issuer's Common Stock.

F1 · derivative.exercise_date: Represents the vesting of an RSU granted on June 23, 2023, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.

F1 · derivative.expiration_date: Represents the vesting of an RSU granted on June 23, 2023, which occurs on the earlier of (A) the date of the next annual meeting of the Company's stockholders following the grant date and (B) the first anniversary of the grant date.