SECURITIES AND EXCHANGE COMMISSION
WASHINGTON,  D.C.  20549
SCHEDULE 13G/A
 Under the Securities Exchange Act of 1934


CYTOKINETICS, INCORPORATED.
--------------------------------------------------------------------------
(Name of issuer)
COMMON STOCK, $0.001 PAR VALUE PER SHARE
--------------------------------------------------------------------------
(Title of class of Securities)
23282W100
--------------
(CUSIP Number)
29 June 2012
---------------------------------------------------------
(Date of Event which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which
this Schedule is filed:
[ ]	Rule 13d-l(b)
[X]	Rule 13d-l(c)
[ ]	Rule 13d-l(d)
*The remainder of this cover page shall be filled out for a reporting
person's initial filing on this form with respect to the subject class
of securities, and for any subsequent amendment containing information
which would alter the disclosures provided in a prior cover page.
       The information required on the remainder of this cover page shall
not be deemed "filed" for the purpose of Section 18 of the
Securities Exchange Act of 1934 ("Act") or otherwise subject
to the liabilities of that section of the Act but shall be subject
to all other provisions of the Act (however, see the Notes).


CUSIP NO. 23282W100						Page 2 of 7 Pages
1.	NAME OF REPORTING PERSON

       EASTERN CAPITAL LIMITED
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP    (a)  [ ]
    (b)  [ ]
3.	SEC USE ONLY
4.	CITIZENSHIP OR PLACE OF ORGANIZATION
       CAYMAN ISLANDS
NUMBER OF
5.  SOLE VOTING POWER				-0-
SHARES

BENEFICIALLY
6.  SHARED VOTING POWER				14,303,071
OWNED BY

EACH
7.  SOLE DISPOSITIVE POWER			-0-
REPORTING

PERSON
8.  SHARED DISPOSITIVE POWER			14,303,071
WITH

9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
14,303,071 shares
10.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) 				 [ ]
       EXCLUDES CERTAIN SHARES
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
       10.72%
12.	TYPE OF REPORTING PERSON
       CO


CUSIP NO. 23282W100						Page 3 of 7 Pages
1.	NAME OF REPORTING PERSON

       PORTFOLIO SERVICES LTD.
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP    (a)  [ ]
    (b)  [ ]
3.	SEC USE ONLY
4.	CITIZENSHIP OR PLACE OF ORGANIZATION
       CAYMAN ISLANDS
NUMBER OF
5.  SOLE VOTING POWER				-0-
SHARES

BENEFICIALLY
6.  SHARED VOTING POWER				14,303,071
OWNED BY

EACH
7.  SOLE DISPOSITIVE POWER			-0-
REPORTING

PERSON
8.  SHARED DISPOSITIVE POWER			14,303,071
WITH

9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
14,303,071 shares
10.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) 				 [ ]
       EXCLUDES CERTAIN SHARES
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
       10.72%
12.	TYPE OF REPORTING PERSON
       CO









CUSIP NO. 23282W100						Page 4 of 7 Pages
1.	NAME OF REPORTING PERSON

       KENNETH B. DART
2.	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP    (a)  [ ]
    (b)  [ ]
3.	SEC USE ONLY
4.	CITIZENSHIP OR PLACE OF ORGANIZATION
       CAYMAN ISLANDS
NUMBER OF
5.  SOLE VOTING POWER				-0-
SHARES

BENEFICIALLY
6.  SHARED VOTING POWER				14,303,071
OWNED BY

EACH
7.  SOLE DISPOSITIVE POWER			-0-
REPORTING

PERSON
8.  SHARED DISPOSITIVE POWER			14,303,071
WITH

9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
14,303,071 shares
10.	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9)				[ ]
       EXCLUDES CERTAIN SHARES
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)
       10.72%
12.	TYPE OF REPORTING PERSON
       IN









CUSIP No. 23282W100						Page 5 of 7 Pages
ITEM l(a).	NAME OF ISSUER:
       CYTOKINETICS, INCORPORATED
ITEM l(b).	ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:
       280 EAST GRAND AVENUE
       SOUTH SAN FRANISCO, CALIFORNIA 94080
ITEM 2(a).	NAME OF PERSON FILING:
1)	EASTERN CAPITAL LIMITED
Eastern Capital Limited is a direct wholly owned subsidiary
of Portfolio Services Ltd., a Cayman Islands corporation.
2)	PORTFOLIO SERVICES LTD.
Portfolio Services Ltd., a Cayman Islands corporation,
is a holding company which owns all of the outstanding
shares of Eastern Capital Limited.
3)	KENNETH B. DART
Mr. Dart is the beneficial owner of all of the outstanding
shares of Portfolio Services Ltd., which in turns owns
all the outstanding shares of Eastern Capital Limited.
ITEM 2(b).	ADDRESS OF PRINCIPAL OFFICE:
1)	10 Market Street, #773
     Camana Bay
     Grand Cayman, KY1-9006  CAYMAN ISLANDS

2)	10 Market Street, #773
     Camana Bay
     Grand Cayman, KY1-9006  CAYMAN ISLANDS

3)	P.O. BOX 31300
     Grand Cayman  KY1-1206  CAYMAN ISLANDS

ITEM 2(c).	CITIZENSHIP:
1)	Cayman Islands
2)	Cayman Islands
3)	Cayman Islands


CUSIP NO.  23282W100					Page 6 of 7 pages
ITEM 2(d).	TITLE OF CLASS OF SECURITIES:
		Common Stock $0.001 par value per share
ITEM 2(e).	CUSIP NUMBER:	23282W100
ITEM 3.	Not Applicable.
ITEM 4.	OWNERSHIP
The number of shares reported as beneficially owned in this
Amendment does not include 4,342,101 shares underlying a
Warrant held by Eastern Capital Limited, which warrant is not
currently exercisable as a result of the number of shares of
the Issuer beneficially owned by Eastern Capital Limited.

The percentage ownership noted in this Schedule 13G/A is based on
133,433,135 number of shares outstanding as of June 20, 2012 as
reported in the Issuer's Prospectus Supplement filed with the SEC
on June 20, 2012. As of the date of this filing, Eastern Capital
Limited, Portfolio Services Ltd. and Mr. Dart beneficially own in
the aggregate the following:

(a)	Amount Beneficially owned:	14,303,071
(b)	Percent of Class:	10.72%
(c)	Number of shares as to which the person has:
       (i)  sole power to vote or to direct the vote:	-0-
       (ii) shared power to vote or to direct the vote:  14,303,071
       (iii)sole power to dispose of or to direct the disposition of:
       -0-
       (iv) shared power to dispose of or to direct the disposition of:
       	14,303,071
ITEM 5.	OWNERSHIP OF 5 PERCENT OR LESS OF A CLASS:	[ ]
ITEM 6.	OWNERSHIP OF MORE THAN 5 PERCENT ON BEHALF OF ANOTHER PERSON:
			Not Applicable
ITEM 7.	IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY
WHICH ACQUIRED THE SECURITY BEING REPORTED ON BY THE
PARENT HOLDING COMPANY OR CONTROL PERSON.  Not applicable





CUSIP NO.  23282W100				Page 7 of 7 pages

ITEM 8.	IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.
Not applicable.
ITEM 9.	NOTICE OF DISSOLUTION OF GROUP.	Not applicable.
ITEM 10.  CERTIFICATION.
       By signing below I certify that, to the best of my knowledge
and belief, the securities referred to above were not acquired and
are not held for the purpose of or with the effect of changing or
influencing the control of the issuer of the securities and were
not acquired and are not held in connection with or as a participant
in any transaction having that purpose or effect.
       SIGNATURE.
       After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this statement
is true, complete and correct.

EASTERN CAPITAL LIMITED
/s/ Kenneth B. Dart
BY:  Kenneth B. Dart, Director
29 June 2012

PORTFOLIO SERVICES LTD.
/s/ Kenneth B. Dart
BY:  Kenneth B. Dart, Director
29 June 2012


KENNETH B. DART
29 June 2012

	1