Sec Form 4/A Filing - Coric Vlad @ Biohaven Ltd. - 2022-10-03

FORM 4/A Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Coric Vlad 2. Issuer Name and Ticker or Trading Symbol Biohaven Ltd. [ BHVN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Executive Officer (Last) (First) (Middle) C/O BIOHAVEN LTD., 215 CHURCH STREET 3. Date of Earliest Transaction (MM/DD/YY) 10/03/2022 (Street) NEW HAVEN, CT06510 4. If Amendment, Date Original Filed (MM/DD/YY) 10/05/2022 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Shares 10/03/2022 J 0( 1 )( 2 )( 3 ) A $ 0 569,309 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Coric Vlad C/O BIOHAVEN LTD. 215 CHURCH STREET NEW HAVEN, CT06510 X Chief Executive Officer Signatures /s/ George Clark, Attorney-in-Fact 10/12/2022 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Effective as of the pro rata distribution by Biohaven Pharmaceutical Holding Company Ltd. ("RemainCo") to holders of its common shares pursuant to the Separation and Distribution Agreement, dated as of May 9, 2022, by and among RemainCo, the Issuer and Pfizer Inc. ("Pfizer"), 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. (Cont'd in FN2) ( 2 )(Cont'd from FN1) 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. 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 will subsequently be settled in Common Shares. ( 3 )This amendment is being filed to correct the amount of shares beneficially owned reported in the Form 4 filed on October 5, 2022 (the "Original Form 4"). The Original Form 4 inadvertently incorrectly reported that 105,950 Issuer RSUs accelerated and vested in full and were subsequently settled in Common Shares; however, as reflected in this amendment, 52,975 Issuer RSUs accelerated and vested in full and were subsequently settled in Common Shares. There were no other changes made to the information in the Original Form 4.

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