SEC Form 4
FORM 4 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
or Section 30(h) of the Investment Company Act of 1940
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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
Bain Capital Life Sciences Investors, LLC

(Last) (First) (Middle)
200 CLARENDON STREET

(Street)
BOSTON MA 02116

(City) (State) (Zip)
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)
3. Date of Earliest Transaction (Month/Day/Year)
02/12/2024
4. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
Form filed by One Reporting Person
X Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 Stock 02/12/2024 C 2,713,868 A (1) 2,713,868 I See footnotes(2)(4)
Common Stock 02/12/2024 P 450,000 A $22 3,163,868 I See footnotes(3)(4)
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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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 (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (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: 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 B Convertible Preferred Stock (1) 02/12/2024 C 12,351,087 (1) (1) Common Stock 2,713,868 $0.00 0 I See footnotes(2)(4)
1. Name and Address of Reporting Person*
Bain Capital Life Sciences Investors, LLC

(Last) (First) (Middle)
200 CLARENDON STREET

(Street)
BOSTON MA 02116

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Bain Capital Life Sciences III General Partner, LLC

(Last) (First) (Middle)
200 CLARENDON STREET

(Street)
BOSTON MA 02116

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Bain Capital Life Sciences Fund III, L.P.

(Last) (First) (Middle)
200 CLARENDON STREET

(Street)
BOSTON MA 02116

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Bain Capital Life Sciences Opportunities III GP, LLC

(Last) (First) (Middle)
200 CLARENDON STREET

(Street)
BOSTON MA 02116

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
1. Name and Address of Reporting Person*
Bain Capital Life Sciences Opportunities III, LP

(Last) (First) (Middle)
200 CLARENDON STREET

(Street)
BOSTON MA 02116

(City) (State) (Zip)

Relationship of Reporting Person(s) to Issuer
Director X 10% Owner
Officer (give title below) Other (specify below)
Explanation of Responses:
1. Each share of the Issuer's Series B Convertible Preferred Stock automatically converted into shares of the Issuer's Common Stock at a ratio of one-for-4.5511 immediately prior to the closing of the Issuer's initial public offering. These securities had no expiration date.
2. Represents 12,351,087 shares of the Issuer's Series B Convertible Preferred Stock held directly by Bain Capital Life Sciences Opportunities III, LP ("BCLS Fund III Opportunities").
3. Represents 450,000 shares of the Issuer's Common Stock purchased by BCLS Fund III Opportunities in the Issuer's initial public offering.
4. Bain Capital Life Sciences Investors, LLC ("BCLSI") is the manager of Bain Capital Life Sciences III General Partner, LLC ("BCLS Fund III GP"), which is the general partner of Bain Capital Life Sciences Fund III, L.P. ("BCLS Fund III"), which is the sole member of Bain Capital Life Sciences Opportunities III GP, LLC ("BCLS Fund III Opportunities GP"), which is the general partner of BCLS Fund III Opportunities. As a result, each of BCLSI, BCLS Fund III GP, BCLS Fund III and BCLS Fund III Opportunities GP may be deemed to share voting and dispositive power with respect to the securities held by BCLS Fund III Opportunities. BCLSI, BCLS Fund III GP, BCLS Fund III and BCLS Fund III Opportunities GP each disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.
See signatures included in Exhibit 99.1 02/14/2024
** Signature of Reporting Person Date
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).
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