Ownership Submission
FORM 4
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

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 *
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 (Month/Day/Year)
03/14/2013
(Street)

MOUNTAIN VIEW, CA 94043
4. If Amendment, Date Original Filed(Month/Day/Year)
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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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) 03/14/2013   D   6,817 (1) D $ 3.15 0 D  

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction 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
(Month/Day/Year)
7. Title and Amount of Underlying Securities
(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 03/18/2013   D     2,500   (2) 07/15/2020 Common Stock 2,500 $ 0.46 (2) 0 D  
Stock Option (right to buy) $ 2.43 03/18/2013   D     10,000   (2) 04/08/2020 Common Stock 10,000 $ 0.72 (2) 0 D  
Stock Option (right to buy) $ 1.91 03/18/2013   D     8,000   (3) 06/21/2022 Common Stock 8,000 $ 1.24 (3) 0 D  
Restricted Stock Units (4) 03/18/2013   D     834   (4)   (4) Common Stock 834 $ 3.15 (4) 0 D  
Restricted Stock Units (5) 03/18/2013   D     4,000   (5)   (5) Common Stock 4,000 $ 3.15 (5) 0 D  
Warrant to Purchase Common Stock $ 1.5 (6) 03/18/2013   D     247   (6)   (6) Common Stock 247 $ 2.826 (6) 0 D  
Warrant to Purchase Common Stock $ 1.5 (7) 03/18/2013   D     5   (7)   (7) Common Stock 5 $ 2.86 (7) 0 D  

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   03/18/2013
**Signature of Reporting Person Date

Explanation of Responses:

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

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