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 *
Sherbin Joshua A
   2. Issuer Name and Ticker or Trading Symbol
TRIMAS CORP [TRS] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Vice President & Secretary
(Last)
(First)
(Middle)
39400 WOODWARD AVENUE, SUITE 130		 3. Date of Earliest Transaction (Month/Day/Year)
02/24/2011
(Street)

BLOOMFIELD HILLS, MI 48304		 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

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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
Restricted Stock Unit $ 0 (1) 02/24/2011   A   11,680     (2)(3) 09/30/2013(4) Common Stock 11,680 $ 0 11,680 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Sherbin Joshua A
39400 WOODWARD AVENUE
SUITE 130
BLOOMFIELD HILLS, MI 48304		       Vice President & Secretary  

Signatures

 /s/ Paula Reno attorney-in-fact   03/01/2011
**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) Each restricted stock unit represents a contingent right to receive the Fair Market Value of one share of common stock, payable only in shares of common stock.
(2) The Restricted Stock Units vest in increments as follows: (a) Upon the Company achieving at least $ 2.00 of cumulative earnings per share for any consecutive four financial quarters from 4/1/2011 through 9/30/2013 (the "EPS Performance Measure"), 2,920 Restricted Stock Units shall vest on the close of the business day immediately following the release of earnings for the quarter in which the EPS Performance Measure is met ("EPS Vesting Date") and 1,460 Restricted Stock Units shall vest on the first anniversary of the EPS Vesting Date and 1,460 Restricted Stock Units shall vest on the second anniversary date of the EPS Vesting Date;
(3) (b) Upon the Company's stock price closing at or above $30.00 per share for 30 consecutive trading days provided such 30th trading day is prior to 9/30/2013, 1,460 Restricted Stock Units shall vest on the close of the business day when such trading threshold is satisfied, 730 Restricted Stock Units shall vest on the first anniversary of the satisfaction of such threshold and 730 Restricted Stock Units shall vest on the second anniversary of the satisfaction of such threshold; (c) Upon the Company's stock price closing at or above $35.00 per share for 30 consecutive trading days provided such 30th trading day is prior to 9/30/2013, 1,460 Restricted Stock Units shall vest on the close of the business day on which such trading threshold is satisfied, 730 Restricted Stock Units shall vest on the first anniversary of the satisfaction of such threshold and 730 Restricted Stock Units shall vest on the second anniversary of the satisfaction of such threshold.
(4) Subject to graduated vesting as described in footnote (2),(3) and Section II.A.(1) of the Restricted Stock Unit Agreement dated February 24, 2011.

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