Robert Arthur Harrington - 14 May 2025 Form 4 Insider Report for CYTOKINETICS INC (CYTK)

Role: Director
Signature: /s/ John Faurescu, attorney-in-fact for Dr. Harrington
Issuer symbol: CYTK
Transactions as of: 14 May 2025
Net transactions value: $0
Form type: 4
Filing time: 19 May 2025, 16:12:08 UTC
Previous filing: 16 Apr 2025
Next filing: 16 Jul 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Harrington Robert Arthur	Director	350 OYSTER POINT BLVD, SOUTH SAN FRANCISCO	/s/ John Faurescu, attorney-in-fact for Dr. Harrington	19 May 2025	0001923988

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	CYTK	Common Stock	Award	$0	+7,333	+49%	$0.000000	22,315	14 May 2025	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	CYTK	Non-Qualified Stock Option (Right to Buy)	Award	$0	+10,880		$0.000000	10,880	14 May 2025	Common Stock	10,880	$30.00	Direct	F2

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

Explanation of Responses:

Id	Content
F1	Comprised of restricted stock units ("RSUs") that will vest in one installment on the earlier to occur of (x) the one-year anniversary of the grant date and (y) the date of the issuer's annual meeting of stockholders for the calendar year immediately subsequent to the grant date, subject to the director's continuous service as a member of the issuer's Board of Directors. RSUs convert to shares of common stock on a 1:1 basis upon vesting.
F2	Comprised of stock options that will vest monthly in equal installments over a period commencing on the grant date and ending on the earlier to occur of (x) the one-year anniversary of the date of the grant and (y) the date of the issuer's annual meeting of stockholders for the calendar year immediately subsequent to the grant date, subject to the director's continuous service as a member of the issuer's Board of Directors.

Content

Comprised of restricted stock units ("RSUs") that will vest in one installment on the earlier to occur of (x) the one-year anniversary of the grant date and (y) the date of the issuer's annual meeting of stockholders for the calendar year immediately subsequent to the grant date, subject to the director's continuous service as a member of the issuer's Board of Directors. RSUs convert to shares of common stock on a 1:1 basis upon vesting.

Comprised of stock options that will vest monthly in equal installments over a period commencing on the grant date and ending on the earlier to occur of (x) the one-year anniversary of the date of the grant and (y) the date of the issuer's annual meeting of stockholders for the calendar year immediately subsequent to the grant date, subject to the director's continuous service as a member of the issuer's Board of Directors.