FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES 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 *   Schnieders Elisabeth 2. Date of Event Requiring Statement (Month/Day/Year) 12/01/2016 3. Issuer Name and Ticker or Trading Symbol CYTOKINETICS INC [CYTK] (Last) (First) (Middle) 280 EAST GRAND AVENUE 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Sr. VP, Business Development 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) SOUTH SAN FRANCISCO, CA 94080 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 Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5) Common Stock 16,485 D Â

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Incentive Stock Option (right to buy)	04/05/2013(1)	03/05/2023	Common Stock	21,163	$ 6	D	Â
Incentive Stock Option (right to buy)	04/05/2012(2)	03/05/2022	Common Stock	14,990	$ 6.3	D	Â
Incentive Stock Option (right to buy)	03/23/2016(3)	02/23/2026	Common Stock	14,442	$ 6.67	D	Â
Incentive Stock Option (right to buy)	03/26/2015(4)	02/26/2025	Common Stock	11,043	$ 7.96	D	Â
Incentive Stock Option (right to buy)	03/28/2011(5)	02/28/2021	Common Stock	12,500	$ 9.42	D	Â
Incentive Stock Option (right to buy)	03/24/2014(6)	02/24/2024	Common Stock	18,419	$ 9.65	D	Â
Incentive Stock Option (right to buy)	03/26/2009(7)	02/26/2019	Common Stock	3,866	$ 11.1	D	Â
Incentive Stock Option (right to buy)	03/24/2010(8)	02/24/2020	Common Stock	8,666	$ 18.48	D	Â
Incentive Stock Option (right to buy)	03/29/2008(9)	02/28/2018	Common Stock	2,500	$ 20.22	D	Â
Incentive Stock Option (right to buy)	04/14/2007(10)	03/14/2017	Common Stock	2,000	$ 40.86	D	Â
Non-Qualified Stock Option (right to buy)	04/05/2013(1)	03/05/2023	Common Stock	3,836	$ 6	D	Â
Non-Qualified Stock Option (right to buy)	04/05/2012(2)	03/05/2022	Common Stock	9	$ 6.3	D	Â
Non-Qualified Stock Option (right to buy)	03/23/2016(3)	02/23/2026	Common Stock	20,558	$ 6.67	D	Â
Non-Qualified Stock Option (right to buy)	03/26/2015(4)	02/26/2025	Common Stock	18,957	$ 7.96	D	Â
Non-Qualified Stock Option (right to buy)	03/24/2014(6)	02/24/2024	Common Stock	11,581	$ 9.65	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Schnieders Elisabeth 280 EAST GRAND AVENUE SOUTH SAN FRANCISCO, CA 94080	Â	Â	  Sr. VP, Business Development	Â

Signatures

Elisabeth Schnieders		12/05/2016
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(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).
(1)	When the ISO and NQ dated 03/05/2013 are combined for a total grant of 24,999 shares, the option shall vest and become exercisable as to 24,999 shares divided into equal monthly installments such that the option shall be 100% vested on 03/05/2017.
(2)	When the ISO and NQ dated 03/05/2012 are combined for a total grant of 14,999 shares, the option vested and became exercisable as to 14,999 shares divided into equal monthly installments such that the option was 100% vested on 03/05/2016.
(3)	When the ISO and NQ dated 02/23/2016 are combined for a total grant of 35,000 shares, the option shall vest and become exercisable as to 35,000 shares divided into equal monthly installments such that the option shall be 100% vested on 02/23/2020.
(4)	When the ISO and NQ dated 02/26/2015 are combined for a total grant of 30,000 shares, the option shall vest and become exercisable as to 30,000 shares divided into equal monthly installments such that the option shall be 100% vested on 02/26/2019.
(5)	This option vested and became exercisable as to 12,500 shares divided into equal monthly installments and became fully vested on 02/28/2015.
(6)	When the ISO and NQ dated 02/24/2014 are combined for a total grant of 30,000 shares, the option shall vest and become exercisable as to 30,000 shares divided into equal monthly installments such that the option shall be 100% vested on 02/24/2018.
(7)	This option vested and became exercisable as to 3,866 shares divided into equal monthly installments such that the option was 100% vested on 02/26/2013.
(8)	This option vested and became exercisable as to 8,666 shares divided into equal monthly installments such that the option was 100% vested on 02/24/2014.
(9)	This option vested and became exercisable as to 2,500 shares divided into equal monthly installments and became fully vested on 02/29/2012.
(10)	This option vested and became exercisable as to 2,000 shares divided into equal monthly installments and became fully vested on 03/01/2011.

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