Statement of Changes in Beneficial Ownership (4)

FORM 4 [ X ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person * CASKEY C THOMAS	2. Issuer Name and Ticker or Trading Symbol COMPLETE GENOMICS INC [ GNOM ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __ X __ Director                      _____ 10% Owner _____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle) C/O COMPLETE GENOMICS, INC., 2071 STIERLIN COURT	3. Date of Earliest Transaction (MM/DD/YYYY) 3/14/2013
(Street) MOUNTAIN VIEW, CA 94043 (City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)	6. Individual or Joint/Group Filing (Check Applicable Line) _ X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security (Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. Code (Instr. 8)		4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock (par value $0.001)	3/14/2013		D		6817   (1)	D	$3.15	0	D

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Stock Option (right to buy)	$2.69	3/18/2013		D			2500	(2)	7/15/2020	Common Stock	2500	$0.46   (2)	0	D
Stock Option (right to buy)	$2.43	3/18/2013		D			10000	(2)	4/8/2020	Common Stock	10000	$0.72   (2)	0	D
Stock Option (right to buy)	$1.91	3/18/2013		D			8000	(3)	6/21/2022	Common Stock	8000	$1.24   (3)	0	D
Restricted Stock Units	(4)	3/18/2013		D			834	(4)	(4)	Common Stock	834	$3.15   (4)	0	D
Restricted Stock Units	(5)	3/18/2013		D			4000	(5)	(5)	Common Stock	4000	$3.15   (5)	0	D
Warrant to Purchase Common Stock	$1.50   (6)	3/18/2013		D			247	(6)	(6)	Common Stock	247	$2.826   (6)	0	D
Warrant to Purchase Common Stock	$1.50   (7)	3/18/2013		D			5	(7)	(7)	Common Stock	5	$2.86   (7)	0	D

Explanation of Responses:
( 1)	These shares were tendered to Beta Acquisition Corporation (the "Purchaser"), a wholly-owned subsidiary of BGI-Shenzhen, pursuant to Purchaser's offer to purchase all of the outstanding shares of the Issuer at a price of $3.15 per share (the "Per Share Merger Consideration"), without interest, subject to the terms described in the Offer to Purchase for Cash filed with the Securities and Exchange Commission on September 25, 2012 and in the related Letter of Transmittal, together with any amendments or supplements thereto, and the Agreement and Plan of Merger, dated as of September 15, 2012 (the "Merger Agreement"). Pursuant to the terms of the Merger Agreement, on March 18, 2013, the Issuer completed its merger (the "Merger") with BGI-Shenzhen, whereby the Issuer became a wholly owned subsidiary of BGI-Shenzhen.
( 2)	In accordance with the terms of the Merger Agreement, each option to acquire shares of the Issuer (whether vested or unvested) that was outstanding immediately prior to the consummation of the Merger was canceled in exchange for the right to receive an amount in cash equal to the product of the number of shares of Issuer common stock subject to the option and the excess, if any, of the Per Share Merger Consideration over the exercise price per share of each respective award, less any required withholding taxes. This award had fully vested prior to the consummation of the Merger.
( 3)	In accordance with the terms of the Merger Agreement, each option to acquire shares of the Issuer (whether vested or unvested) that was outstanding immediately prior to the consummation of the Merger was canceled in exchange for the right to receive an amount in cash equal to the product of the number of shares of Issuer common stock subject to the option and the excess, if any, of the Per Share Merger Consideration over the exercise price per share of each respective award, less any required withholding taxes. The award, which provided for vesting in 36 successive and equal monthly installments measured from June 22, 2012, accelerated and became fully vested upon the consummation of the Merger, pursuant to the terms of the option agreement and the Merger Agreement.
( 4)	Each restricted stock unit represents a contingent right to receive one share of Issuer's common stock. In accordance with the terms of the Merger Agreement, each restricted stock unit that was outstanding immediately prior to the consummation of the Merger was canceled in exchange for the right to receive an amount in cash equal to the product of the number of shares of Issuer common stock subject to the restricted stock unit and the Per Share Merger Consideration, less any required withholding taxes. The award, which provided for vesting in three successive and equal annual installments measured from November 30, 2010, such that the restricted stock units will vest in full on the third anniversary of November 30, 2010, accelerated and became fully vested upon the consummation of the Merger, pursuant to the terms of the restricted stock unit agreement and the Merger Agreement.
( 5)	Each restricted stock unit represents a contingent right to receive one share of Issuer's common stock. In accordance with the terms of the Merger Agreement, each restricted stock unit that was outstanding immediately prior to the consummation of the Merger was canceled in exchange for the right to receive an amount in cash equal to the product of the number of shares of Issuer common stock subject to the restricted stock unit and the Per Share Merger Consideration, less any required withholding taxes. The award, which provided for vesting in three successive and equal annual installments measured from June 22, 2012, accelerated and became fully vested upon the consummation of the Merger, pursuant to the terms of the restricted stock unit agreement and the Merger Agreement.
( 6)	In accordance with the terms of the Merger Agreement, each warrant exercisable for shares of Issuer common stock that was outstanding immediately prior to the consummation of the Merger was canceled in exchange for the right to receive an amount in cash equal to $2.826 per warrant, calculated in accordance with the Black-Scholes option pricing formula set forth in the stock purchase warrant agreement.
( 7)	In accordance with the terms of the Merger Agreement, each warrant exercisable for shares of Issuer common stock that was outstanding immediately prior to the consummation of the Merger was canceled in exchange for the right to receive an amount in cash equal to $2.86 per warrant, calculated in accordance with the Black-Scholes option pricing formula set forth in the stock purchase warrant agreement.

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
CASKEY C THOMAS C/O COMPLETE GENOMICS, INC. 2071 STIERLIN COURT MOUNTAIN VIEW, CA 94043	X

Signatures
/s/ Maureen Monahan, Attorney in Fact for Mr. Caskey		3/18/2013
** Signature of Reporting Person		Date

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*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
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