Buten Matthew

SEC source: 0001898799-26-000004 · wk-form4_1772579341.xml · derivative · entry 1

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 175,000

Underlying: Common Shares · 175,000 shares

Expires 2036-02-27

F1 · derivative.exercise_date: The shares underlying this option vest in four equal installments on February 27, 2026, 2027, 2028 and 2029, subject to the Reporting Person's continuous service with the Issuer at each vesting date.

SEC source: 0001898799-26-000002 · wk-form4_1767839598.xml · derivative · entry 3

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,500

Underlying: Common Shares · 4,250 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.

F3 · derivative.exercise_price: Each restricted share unit represents the contingent right to receive one common share of the Issuer.

F3 · price: Each restricted share unit represents the contingent right to receive one common share of the Issuer.

F4 · derivative.exercise_date: The reporting person was granted 17,000 restricted share units on January 5, 2025, vesting in four equal installments on January 5, 2025, 2026, 2027 and 2028, subject to the reporting person's continued service with the Issuer at each vesting date.

F5 · derivative.expiration_date: Not applicable.

SEC source: 0001898799-26-000002 · wk-form4_1767839598.xml · nonDerivative · entry 2

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 195,652

F2 · shares: No shares were sold - these shares were withheld by the Issuer to satisfy tax withholding requirements in connection with the vesting of restricted share units.

F1 · balance_after: This balance includes 544 shares that were acquired through the Biohaven Employee Share Purchase Plan on May 31, 2025.

SEC source: 0001898799-26-000002 · wk-form4_1767839598.xml · nonDerivative · entry 1

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 198,246

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: This balance includes 544 shares that were acquired through the Biohaven Employee Share Purchase Plan on May 31, 2025.

SEC source: 0001935979-25-000003 · wk-form4_1736300950.xml · derivative · entry 5

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,750

Underlying: Common Shares · 4,250 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: Each restricted share unit represents the contingent right to receive one common share of the Issuer.

F4 · price: Each restricted share unit represents the contingent right to receive one common share of the Issuer.

F5 · derivative.exercise_date: The reporting person was granted 17,000 restricted share units on January 5, 2025, vesting in four equal installments on January 5, 2025, 2026, 2027 and 2028, subject to the reporting person's continued service with the Issuer at each vesting date.

F6 · derivative.expiration_date: Not applicable.

SEC source: 0001935979-25-000003 · wk-form4_1736300950.xml · derivative · entry 4

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,000

Underlying: Common Shares · 17,000 shares

Expires not disclosed

F4 · derivative.exercise_price: Each restricted share unit represents the contingent right to receive one common share of the Issuer.

F4 · price: Each restricted share unit represents the contingent right to receive one common share of the Issuer.

F5 · derivative.exercise_date: The reporting person was granted 17,000 restricted share units on January 5, 2025, vesting in four equal installments on January 5, 2025, 2026, 2027 and 2028, subject to the reporting person's continued service with the Issuer at each vesting date.

F6 · derivative.expiration_date: Not applicable.

SEC source: 0001935979-25-000003 · wk-form4_1736300950.xml · derivative · entry 3

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 104,000

Underlying: Common Shares · 104,000 shares

Expires 2035-01-05

F3 · derivative.exercise_date: The shares underlying this option vest in four equal installments on January 5, 2025, 2026, 2027 and 2028, subject to the Reporting Person's continuous service with the Issuer at each vesting date.

SEC source: 0001935979-25-000003 · wk-form4_1736300950.xml · nonDerivative · entry 2

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 193,452

F2 · shares: No shares were sold - these shares were withheld by the Issuer to satisfy tax withholding requirements in connection with the vesting of restricted share units.

F1 · balance_after: This balance includes 305 shares that were acquired through the Biohaven Employee Share Purchase Plan (the "ESPP") on May 31, 2023, 1,336 shares acquired through the ESPP on November 30, 2023, and 742 shares acquired through the ESPP on May 31, 2024.

SEC source: 0001935979-25-000003 · wk-form4_1736300950.xml · nonDerivative · entry 1

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 196,013

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: This balance includes 305 shares that were acquired through the Biohaven Employee Share Purchase Plan (the "ESPP") on May 31, 2023, 1,336 shares acquired through the ESPP on November 30, 2023, and 742 shares acquired through the ESPP on May 31, 2024.

SEC source: 0001562180-24-000284 · primarydocument.xml · derivative · entry 1

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 96,250

Underlying: Common Shares · 96,250 shares

Expires 2034-01-02

F1 · derivative.exercise_date: The shares underlying this option vest in four equal installments on January 2, 2024, 2025, 2026 and 2027, subject to the Reporting Person's continuous service with the Issuer at each vesting date.

SEC source: 0001562180-23-007580 · primarydocument.xml · derivative · entry 1

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 78,750

Underlying: Common Shares · 78,750 shares

Expires 2033-11-02

F1 · derivative.exercise_date: The shares underlying this option vest in four equal installments on November 2, 2023, 2024, 2025, and 2026, subject to the Reporting Person's continuous service with the Issuer at each vesting date.

SEC source: 0001562180-23-007229 · primarydocument.xml · nonDerivative · entry 1

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 189,380

F1 · shares: Represents common shares acquired in an underwritten public offering.

SEC source: 0001562180-22-007333 · primarydocument.xml · nonDerivative · entry 1

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 166,653

F1 · shares: Represents common shares acquired in an underwritten public offering.

SEC source: 0001562180-22-006959 · primarydocument.xml · derivative · entry 4

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 22,900 shares

Expires 2032-01-07

F4 · derivative.exercise_price: In connection with the Distribution, each outstanding option to purchase common shares of the Issuer was adjusted such that such option became an option to acquire SpinCo common shares and an option to acquire Common Shares (each such option, a "Post-Spin Issuer Option"). At the effective time of the Merger, each outstanding Post-Spin Issuer Option was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the exercise price per Common Share of such Post-Spin Issuer Option and (ii) the number of Common Shares subject to such Post-Spin Issuer Option, less any withholding taxes.

F4 · shares: In connection with the Distribution, each outstanding option to purchase common shares of the Issuer was adjusted such that such option became an option to acquire SpinCo common shares and an option to acquire Common Shares (each such option, a "Post-Spin Issuer Option"). At the effective time of the Merger, each outstanding Post-Spin Issuer Option was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the exercise price per Common Share of such Post-Spin Issuer Option and (ii) the number of Common Shares subject to such Post-Spin Issuer Option, less any withholding taxes.

F4 · price: In connection with the Distribution, each outstanding option to purchase common shares of the Issuer was adjusted such that such option became an option to acquire SpinCo common shares and an option to acquire Common Shares (each such option, a "Post-Spin Issuer Option"). At the effective time of the Merger, each outstanding Post-Spin Issuer Option was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the exercise price per Common Share of such Post-Spin Issuer Option and (ii) the number of Common Shares subject to such Post-Spin Issuer Option, less any withholding taxes.

F4 · derivative.exercise_date: In connection with the Distribution, each outstanding option to purchase common shares of the Issuer was adjusted such that such option became an option to acquire SpinCo common shares and an option to acquire Common Shares (each such option, a "Post-Spin Issuer Option"). At the effective time of the Merger, each outstanding Post-Spin Issuer Option was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the exercise price per Common Share of such Post-Spin Issuer Option and (ii) the number of Common Shares subject to such Post-Spin Issuer Option, less any withholding taxes.

F4 · derivative.expiration_date: In connection with the Distribution, each outstanding option to purchase common shares of the Issuer was adjusted such that such option became an option to acquire SpinCo common shares and an option to acquire Common Shares (each such option, a "Post-Spin Issuer Option"). At the effective time of the Merger, each outstanding Post-Spin Issuer Option was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the exercise price per Common Share of such Post-Spin Issuer Option and (ii) the number of Common Shares subject to such Post-Spin Issuer Option, less any withholding taxes.

SEC source: 0001562180-22-006959 · primarydocument.xml · derivative · entry 3

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 3,100 shares

Expires 2032-01-07

F4 · derivative.exercise_price: In connection with the Distribution, each outstanding option to purchase common shares of the Issuer was adjusted such that such option became an option to acquire SpinCo common shares and an option to acquire Common Shares (each such option, a "Post-Spin Issuer Option"). At the effective time of the Merger, each outstanding Post-Spin Issuer Option was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the exercise price per Common Share of such Post-Spin Issuer Option and (ii) the number of Common Shares subject to such Post-Spin Issuer Option, less any withholding taxes.

F4 · shares: In connection with the Distribution, each outstanding option to purchase common shares of the Issuer was adjusted such that such option became an option to acquire SpinCo common shares and an option to acquire Common Shares (each such option, a "Post-Spin Issuer Option"). At the effective time of the Merger, each outstanding Post-Spin Issuer Option was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the exercise price per Common Share of such Post-Spin Issuer Option and (ii) the number of Common Shares subject to such Post-Spin Issuer Option, less any withholding taxes.

F4 · price: In connection with the Distribution, each outstanding option to purchase common shares of the Issuer was adjusted such that such option became an option to acquire SpinCo common shares and an option to acquire Common Shares (each such option, a "Post-Spin Issuer Option"). At the effective time of the Merger, each outstanding Post-Spin Issuer Option was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the exercise price per Common Share of such Post-Spin Issuer Option and (ii) the number of Common Shares subject to such Post-Spin Issuer Option, less any withholding taxes.

F4 · derivative.exercise_date: In connection with the Distribution, each outstanding option to purchase common shares of the Issuer was adjusted such that such option became an option to acquire SpinCo common shares and an option to acquire Common Shares (each such option, a "Post-Spin Issuer Option"). At the effective time of the Merger, each outstanding Post-Spin Issuer Option was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the exercise price per Common Share of such Post-Spin Issuer Option and (ii) the number of Common Shares subject to such Post-Spin Issuer Option, less any withholding taxes.

F4 · derivative.expiration_date: In connection with the Distribution, each outstanding option to purchase common shares of the Issuer was adjusted such that such option became an option to acquire SpinCo common shares and an option to acquire Common Shares (each such option, a "Post-Spin Issuer Option"). At the effective time of the Merger, each outstanding Post-Spin Issuer Option was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the excess, if any, of the Merger Consideration over the exercise price per Common Share of such Post-Spin Issuer Option and (ii) the number of Common Shares subject to such Post-Spin Issuer Option, less any withholding taxes.

SEC source: 0001562180-22-006959 · primarydocument.xml · derivative · entry 2

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 37,500 shares

Expires not disclosed

F3 · derivative.exercise_price: In connection with the distribution ("Distribution") by the Issuer to holders of its common shares of all the outstanding common shares of Biohaven Ltd. ("SpinCo"), each outstanding restricted share unit of the Issuer was adjusted such that such restricted share unit became a restricted share unit in respect of common shares of SpinCo and a restricted share unit in respect of Common Shares (each such restricted share unit, a "Post-Spin Issuer RSU"). At the effective time of the Merger, each outstanding Post-Spin Issuer RSU was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the number of Common Shares subject to such Post-Spin Issuer RSU, with any performance conditions applicable to such Post-Spin Issuer RSU deemed achieved at 100%, and (ii) the Merger Consideration, less any withholding taxes.

F3 · shares: In connection with the distribution ("Distribution") by the Issuer to holders of its common shares of all the outstanding common shares of Biohaven Ltd. ("SpinCo"), each outstanding restricted share unit of the Issuer was adjusted such that such restricted share unit became a restricted share unit in respect of common shares of SpinCo and a restricted share unit in respect of Common Shares (each such restricted share unit, a "Post-Spin Issuer RSU"). At the effective time of the Merger, each outstanding Post-Spin Issuer RSU was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the number of Common Shares subject to such Post-Spin Issuer RSU, with any performance conditions applicable to such Post-Spin Issuer RSU deemed achieved at 100%, and (ii) the Merger Consideration, less any withholding taxes.

F3 · price: In connection with the distribution ("Distribution") by the Issuer to holders of its common shares of all the outstanding common shares of Biohaven Ltd. ("SpinCo"), each outstanding restricted share unit of the Issuer was adjusted such that such restricted share unit became a restricted share unit in respect of common shares of SpinCo and a restricted share unit in respect of Common Shares (each such restricted share unit, a "Post-Spin Issuer RSU"). At the effective time of the Merger, each outstanding Post-Spin Issuer RSU was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the number of Common Shares subject to such Post-Spin Issuer RSU, with any performance conditions applicable to such Post-Spin Issuer RSU deemed achieved at 100%, and (ii) the Merger Consideration, less any withholding taxes.

F3 · derivative.exercise_date: In connection with the distribution ("Distribution") by the Issuer to holders of its common shares of all the outstanding common shares of Biohaven Ltd. ("SpinCo"), each outstanding restricted share unit of the Issuer was adjusted such that such restricted share unit became a restricted share unit in respect of common shares of SpinCo and a restricted share unit in respect of Common Shares (each such restricted share unit, a "Post-Spin Issuer RSU"). At the effective time of the Merger, each outstanding Post-Spin Issuer RSU was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the number of Common Shares subject to such Post-Spin Issuer RSU, with any performance conditions applicable to such Post-Spin Issuer RSU deemed achieved at 100%, and (ii) the Merger Consideration, less any withholding taxes.

F3 · derivative.expiration_date: In connection with the distribution ("Distribution") by the Issuer to holders of its common shares of all the outstanding common shares of Biohaven Ltd. ("SpinCo"), each outstanding restricted share unit of the Issuer was adjusted such that such restricted share unit became a restricted share unit in respect of common shares of SpinCo and a restricted share unit in respect of Common Shares (each such restricted share unit, a "Post-Spin Issuer RSU"). At the effective time of the Merger, each outstanding Post-Spin Issuer RSU was automatically cancelled in exchange for the right to receive (without interest) an amount in cash equal to the product of (i) the number of Common Shares subject to such Post-Spin Issuer RSU, with any performance conditions applicable to such Post-Spin Issuer RSU deemed achieved at 100%, and (ii) the Merger Consideration, less any withholding taxes.

SEC source: 0001562180-22-006959 · primarydocument.xml · nonDerivative · entry 1

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · kind: Under the Agreement and Plan of Merger, dated as of May 9, 2022 (the "Merger Agreement"), by and among the Issuer, Pfizer Inc. ("Pfizer") and a wholly owned subsidiary of Pfizer ("Merger Sub"), following satisfaction or waiver of the closing conditions set forth in the Merger Agreement, on October 3, 2022 Merger Sub merged with and into the Issuer with the Issuer surviving as the surviving company (the "Merger").

F2 · price: In the Merger, each common share of the Issuer (each, a "Common Share") outstanding immediately prior to the effective time of the Merger (other than certain excluded shares pursuant to the terms of the Merger Agreement), was converted into the right to receive the merger consideration in cash of $148.50, without interest, less any withholding taxes (the "Merger Consideration").

SEC source: 0001562180-22-007076 · primarydocument.xml · derivative · entry 10

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 300,000

Underlying: Common Shares · 300,000 shares

Expires 2032-10-04

F5 · derivative.exercise_date: The shares underlying this option vest in four equal installments on October 4, 2022, 2023, 2024, and 2025, subject to the reporting person's continuous service with the Issuer at each vesting date.

SEC source: 0001562180-22-007076 · primarydocument.xml · derivative · entry 9

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 11,450 shares

Expires 2032-01-07

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.

F4 · derivative.exercise_date: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

F4 · derivative.expiration_date: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

SEC source: 0001562180-22-007076 · primarydocument.xml · derivative · entry 8

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Shares · 1,550 shares

Expires 2032-01-07

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.

F4 · derivative.exercise_date: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

F4 · derivative.expiration_date: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

SEC source: 0001562180-22-007076 · primarydocument.xml · derivative · entry 7

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,450

Underlying: Common Shares · 11,450 shares

Expires 2032-01-07

F4 · derivative.exercise_price: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

F4 · shares: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

F4 · price: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

F4 · derivative.exercise_date: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

F4 · derivative.expiration_date: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

SEC source: 0001562180-22-007076 · primarydocument.xml · derivative · entry 6

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 1,550

Underlying: Common Shares · 1,550 shares

Expires 2032-01-07

F4 · derivative.exercise_price: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

F4 · shares: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

F4 · price: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

F4 · derivative.exercise_date: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

F4 · derivative.expiration_date: Effective as of the Distribution, each outstanding option to purchase common shares of RemainCo was adjusted so that such option became an option to acquire Common Shares and an option to acquire RemainCo common shares. As a result, the Reporting Person acquired options to acquire the Issuer's Common Shares in an amount determined in accordance with the Separation Agreement.

SEC source: 0001562180-22-007076 · primarydocument.xml · nonDerivative · entry 5

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,796

F3 · shares: These shares were withheld by the Issuer in connection with share settlement to cover the cost of the stock options.

SEC source: 0001562180-22-007076 · primarydocument.xml · nonDerivative · entry 4

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 34,838

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: 0001562180-22-007076 · primarydocument.xml · nonDerivative · entry 3

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,388

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: 0001562180-22-007076 · primarydocument.xml · nonDerivative · entry 2

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,838

F2 · shares: Effective as of the Distribution, each outstanding restricted share unit of RemainCo was adjusted so that such restricted share unit became a restricted share unit in respect of Common Shares (each, an "Issuer RSU") and a restricted share unit in respect of RemainCo common shares. At the effective time of the merger of a wholly owned subsidiary of Pfizer ("Merger Sub") with and into RemainCo pursuant to the Agreement and Plan of Merger, dated as of May 9, 2022, by and among RemainCo, Pfizer and Merger Sub, the Issuer RSUs accelerated and vested in full and were subsequently settled in Common Shares. As a result, the Reporting Person acquired restricted share units in respect of Common Shares in an amount determined in accordance with the Separation Agreement.

SEC source: 0001562180-22-007076 · primarydocument.xml · nonDerivative · entry 1

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 3,088

F1 · shares: Represents common shares of the Issuer ("Common Shares") acquired by the Reporting Person in a pro rata distribution by Biohaven Pharmaceutical Holding Company Ltd.. ("RemainCo") to holders of its common shares (the "Distribution") pursuant to the Separation and Distribution Agreement (the "Separation Agreement"), dated as of May 9, 2022, by and among RemainCo, the Issuer, and Pfizer Inc. ("Pfizer").

SEC source: 0001562180-22-000358 · primarydocument.xml · derivative · entry 1

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,000

Underlying: Common Shares · 26,000 shares

Expires 2032-01-07

F1 · derivative.exercise_date: The shares underlying this option vest in four equal installments on January 7, 2022, 2023, 2024 and 2025, subject to the reporting person's continuous service with the Issuer at each vesting date.

SEC source: 0001562180-22-000183 · primarydocument.xml · derivative · entry 3

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,500

Underlying: Common Shares · 12,500 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 share unit represents the contingent right to receive one common share of the issuer.

F2 · price: Each restricted share unit represents the contingent right to receive one common share of the issuer.

F3 · derivative.exercise_date: The reporting person was granted 50,000 restricted share units on December 8, 2021. 12,500 of the restricted share units vested on December 8, 2021 and were subject to deferred settlement. The remainder vest in three equal installments on December 8, 2022, 2023 and 2024 subject to the reporting person's continued service with the issuer at each vesting date.

F4 · derivative.expiration_date: Not applicable.

SEC source: 0001562180-22-000183 · primarydocument.xml · nonDerivative · entry 2

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,177

F1 · shares: No shares were sold - these shares were withheld by the issuer in connection with mandatory share settlement to satisfy tax withholding requirements in connection with the vesting of restricted share units.

SEC source: 0001562180-22-000183 · primarydocument.xml · nonDerivative · entry 1

Buten Matthew · CIK 0001898799 · Chief Financial Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 12,500

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: 0001562180-21-007699 · primarydocument.xml · derivative · entry 1

Buten Matthew · CIK 0001898799 · Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,000

Underlying: Common Shares · 50,000 shares

Expires not disclosed

F1 · derivative.exercise_price: Each restricted share unit represents the contingent right to receive one common share of the issuer.

F1 · price: Each restricted share unit represents the contingent right to receive one common share of the issuer.

F2 · derivative.exercise_date: The reporting person was granted 50,000 restricted share units on December 8, 2021. 12,500 of the restricted share units vested on December 8, 2021 and are subject to deferred settlement. The remainder vest in three equal installments on December 8, 2022, 2023 and 2024 subject to the reporting person's continued service with the issuer at each vesting date.

F3 · derivative.expiration_date: Not applicable.