CYTOKINETICS INC — Director's Dealing 2020

May 30, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: CYTOKINETICS INC (CYTK)
CIK: 0001061983
Period of Report: 2020-05-29

Reporting Person: Blum Robert I (Director, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-29	Common Stock	M	5000	$6.3	Acquired	308633	Direct
2020-05-29	Common Stock	S	5000	$20.1006	Disposed	303633	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-29	Incentive Stock Option (right to buy)	$6.3	M	5000	Disposed	2022-03-05	Common Stock (5000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2083	Indirect
Common Stock	2083	Indirect

Footnotes

F1: Includes 3,035 shares of common stock purchased pursuant to the Issuer's 2015 Employee Stock Purchase Plan (ESPP). Footnote no. 2 from Reporting Person's Form 4 filed on 5/1/2020 incorrectly stated that Reporting Person owned 8,846 shares of common stock previously purchased under the ESPP instead of the correct amount of 3,846 shares of common stock purchased under the ESPP. Footnote no. 2 from Reporting Person's Form 4 filed on 5/18/2020 incorrectly stated that Reporting Person owned 8,035 shares of common stock previously purchased under the ESPP instead of the correct amount of 3,035 shares of common stock purchased under the ESPP.

F2: Shares held by The Bridget Blum 2003 Irrevocable Trust.

F3: Shares held by The Brittany Blum 2003 Irrevocable Trust.