Ownership Submission
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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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Eastern Capital LTD
 2. Date of Event Requiring Statement (Month/Day/Year)
06/20/2012		 3. Issuer Name and Ticker or Trading Symbol
CYTOKINETICS INC [CYTK]
(Last)
(First)
(Middle)
10 MARKET STREET #773, CAMANA BAY		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

GRAND CAYMAN, E9 KY1-9006		 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 14,303,071
D
 

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
Warrants (right to buy) 06/25/2012 06/24/2017 Common Stock 4,342,101 $ 0.88 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Eastern Capital LTD
10 MARKET STREET #773
CAMANA BAY
GRAND CAYMAN, E9 KY1-9006		     X    

Signatures

Eastern Capital Limited 07/02/2012
**Signature of Reporting Person Date
Portfolio Services Ltd. 07/02/2012
**Signature of Reporting Person Date
Kenneth Bryan Dart 07/02/2012
**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).
 
Remarks:
Eastern Capital Limited is an investment entity that owns the securities reported in this Form 3.  Portfolio Services Ltd. is a holding company which owns all of the outstanding stock of Eastern Capital Limited.  Kenneth B. Dart is the beneficial owner of all of the outstanding stock of Portfolio Services Ltd.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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