Sec Form 3 Filing - Vida Ventures, LLC @ Kyverna Therapeutics, Inc. - 2024-02-07

FORM 3 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 Vida Ventures, LLC 2. Issuer Name and Ticker or Trading Symbol Kyverna Therapeutics, Inc. [ KYTX] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 40 BROAD STREET, SUITE 201 3. Date of Earliest Transaction (MM/DD/YY) 02/07/2024 (Street) BOSTON, MA02109 4. If Amendment, Date Original Filed (MM/DD/YY) 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

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 Series A-1 Redeemable Convertible Preferred Stock ( 1 ) ( 1 ) ( 1 ) Common Stock 967,188 ( 1 ) D ( 2 ) Series A-2 Redeemable Convertible Preferred Stock ( 1 ) ( 1 ) ( 1 ) Common Stock 1,940,388 ( 1 ) D ( 2 ) Series B Redeemable Convertible Preferred Stock ( 1 ) ( 1 ) ( 1 ) Common Stock 1,616,348 ( 1 ) D ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Vida Ventures, LLC 40 BROAD STREET, SUITE 201 BOSTON, MA02109 X Signatures Vida Ventures, LLC, By: /s/ Fred Cohen, Director 02/07/2024 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock has no expiration date and is convertible into the Issuer's Common Stock on a 1-for-4.5511 basis at any time. The number of underlying shares of Common Stock reported in Column 3 reflects an automatic conversion of each outstanding share of Series A-1, Series A-2 and Series B Redeemable Convertible Preferred Stock into shares of Common Stock at a ratio of 1-for-4.5511 to be effective immediately prior to the closing of the Issuer's initial public offering. ( 2 )Vida Ventures Advisors, LLC is the investment advisor to the Reporting Person. Dr. Arie Belldegrun, Leonard Potter and Dr. Fred E. Cohen, a member of the Issuer's board of directors, are the managing members of Vida Ventures Advisors, LLC, and may be deemed to share voting and dispositive power over the shares held by the Reporting Person, but each disclaims beneficial ownership of the shares held by the Reporting Person except to the extent of such person's pecuniary interest therein, if any.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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