Sec Form 4 Filing - Summers Family Trust @ Primoris Services CORP - 2009-12-29

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 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 Summers Family Trust 2. Issuer Name and Ticker or Trading Symbol Primoris Services CORP [ PRIM] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) X __ Other (specify below) See remarks (Last) (First) (Middle) C/O PRIMORIS SERVICES CORPORATION, 26000 COMMERCE CENTRE DRIVE 3. Date of Earliest Transaction (MM/DD/YY) 12/29/2009 (Street) LAKE FOREST, CA92630 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 12/29/2009 G 9,750 ( 1 ) D $ 0 1,470,422 ( 3 ) D Common Stock 12/30/2010 G 8,055 ( 2 ) D $ 0 1,462,367 ( 3 ) D Common Stock 12/29/2009 G 9,750 ( 1 ) A $ 0 9,750 I Held by Scott Summers' children's trusts. Common Stock 12/30/2010 G 8,055 ( 2 ) A $ 0 17,805 I Held by Scott Summers' children's trusts.

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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 Fol lowing 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Summers Family Trust C/O PRIMORIS SERVICES CORPORATION 26000 COMMERCE CENTRE DRIVE LAKE FOREST, CA92630 See remarks Summers Scott E. C/O PRIMORIS SERVICES CORPORATION 26000 COMMERCENTRE DRIVE LAKE FOREST, CA92630 See remarks Signatures /s/ Peter J. Moerbeek, by power of attorney 01/04/2011 Signature of Reporting Person Date /s/ Peter J. Moerbeek, by power of attorney 01/04/2011 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On December 29, 2009 Scott Summers Family Trust gifted 3,250 shares each of Common Stock to his children's trusts: 1)Patrick Summers, Trustee of the Christen Leigh Summers Trust 12/17/09; 2)Patrick Summers, Trustee of the Briana Lynn Summers Trust 12/17/09; 3)Patrick Summers, Trustee of the Danielle June Summers Trust 12/22/09. Total shares of common stock transferred 9,750. Patrick Summers is the brother of Scott E. Summers. ( 2 )On December 30, 2010 Scott Summers Family Trust gifted 2,685 shares each of Common Stock to his children's trusts: 1)Patrick Summers, Trustee of the Christen Leigh Summers Trust 12/17/09; 2)Patrick Summers, Trustee of the Briana Lynn Summers Trust 12/17/09; 3)Patrick Summers, Trustee of the Danielle June Summers Trust 12/22/09. Total shares of common stock transferred 8,055. Patrick Summers is the brother of Scott E. Summers. ( 3 )These shares are owned directly by the Summers Family Trust and indirectly by Scott E. Summers, as trustee of the trust.

Remarks: Member of 13(d) group owning more than 10%.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

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

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