Warner Weston Biddle - 13 Mar 2026 Form 4 Insider Report for Kyverna Therapeutics, Inc. (KYTX)

Role: Chief Executive Officer, Director
Signature: By: /s/ Marc Grasso, as Attorney-in-Fact
Issuer symbol: KYTX
Transactions as of: 13 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 17 Mar 2026, 16:30:12 UTC
Previous filing: 15 Apr 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Biddle Warner Weston	Chief Executive Officer, Director	C/O KYVERNA THERAPEUTICS, INC., 5980 HORTON ST., STE 550, EMERYVILLE	By: /s/ Marc Grasso, as Attorney-in-Fact	17 Mar 2026	0002034523

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	KYTX	Common Stock	Award		+58,000		$0.000000^*	58,000	13 Mar 2026	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	KYTX	Stock Option (right to buy)	Award		+350,000		$0.000000^*	350,000	13 Mar 2026	Common Stock	350,000	$8.95	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents a restricted stock unit award of common stock and 1/4th of the shares underlying the restricted stock unit award shall vest on March 13, 2027 and an additional 1/4th of the shares underlying the restricted stock unit award shall vest on each one-year anniversary thereafter, subject to the Reporting Person's continuous service to the Issuer on and through each applicable vesting date, inclusive.
F2	1/4th of the shares subject to the option shall vest on March 13, 2027 and an additional 1/48th of the shares subject to the option shall vest on the same day of each month thereafter, subject to the Reporting Person's continuous service to the Issuer on and through each applicable vesting date, inclusive.

Content

Represents a restricted stock unit award of common stock and 1/4th of the shares underlying the restricted stock unit award shall vest on March 13, 2027 and an additional 1/4th of the shares underlying the restricted stock unit award shall vest on each one-year anniversary thereafter, subject to the Reporting Person's continuous service to the Issuer on and through each applicable vesting date, inclusive.

1/4th of the shares subject to the option shall vest on March 13, 2027 and an additional 1/48th of the shares subject to the option shall vest on the same day of each month thereafter, subject to the Reporting Person's continuous service to the Issuer on and through each applicable vesting date, inclusive.

Remarks:

Exhibit 24 - Power of Attorney