X0306 4 2022-10-03 false 0001935979 Biohaven Ltd. BHVN 0001850520 Mehta Kishan C/O BIOHAVEN LTD. 215 CHURCH STREET NEW HAVEN CT 06510 true false false false Common Shares 2022-10-03 4 J false 5320.00 0.00 A 5320.00 D Common Shares 2022-10-03 4 J false 937.00 0.00 A 6257.00 D Common Shares 2022-10-03 4 M false 4119.00 4.84 A 10376.00 D Common Shares 2022-10-03 4 M false 6502.00 4.61 A 16878.00 D Common Shares 2022-10-03 4 M false 7500.00 2.58 A 24378.00 D Common Shares 2022-10-03 4 M false 10000.00 1.86 A 34378.00 D Common Shares 2022-10-03 4 F false 11716.00 7.00 D 22662.00 D Stock Options (Right to Buy) 4.84 2022-10-03 4 J false 4119.00 A 2032-04-28 Common Shares 4119.00 4119.00 D Stock Options (Right to Buy) 4.61 2022-10-03 4 J false 6502.00 A 2031-06-15 Common Shares 6502.00 6502.00 D Stock Options (Right to Buy) 2.58 2022-10-03 4 J false 7500.00 A 2029-12-18 Common Shares 7500.00 7500.00 D Stock Options (Right to Buy) 1.86 2022-10-03 4 J false 10000.00 A 2029-01-17 Common Shares 10000.00 10000.00 D Stock Options (Right to Buy) 4.84 2022-10-03 4 M false 4119.00 0.00 D 2032-04-28 Common Shares 4119.00 0.00 D Stock Options (Right to Buy) 4.61 2022-10-03 4 M false 6502.00 0.00 D 2031-06-15 Common Shares 6502.00 0.00 D Stock Options (Right to Buy) 2.58 2022-10-03 4 M false 7500.00 0.00 D 2029-12-18 Common Shares 7500.00 0.00 D Stock Options (Right to Buy) 1.86 2022-10-03 4 M false 10000.00 0.00 D 2029-01-17 Common Shares 10000.00 0.00 D Stock Options (Right to buy) 7.00 2022-10-03 4 A false 125000.00 0.00 A 2032-10-04 Common Shares 125000.00 125000.00 D 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"). 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. These shares were withheld by the Issuer in connection with share settlement to cover the cost of the stock options. 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. The shares underlying this option vest in four equal installments on October 3, 2022, 2023, 2024, and 2025, subject to the Reporting Person's continuous service with the Issuer at each vesting date. /s/ George Clark, Attorney-in-Fact 2022-10-05