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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
842633	Trimas Corp	TRS	Metal Forgings & Stampings (3460)	382687639

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1446066	Mark A Zeffiro	39400 Woodward Avenue Suite 130 Bloomfield Hills MI 48304	Chief Financial Officer	No	Yes	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership
Common Stock	Disposition	2010-03-04	3,738	$6.50	38,306	No	4	P	Direct
Common Stock	Acquisiton	2010-03-05	250	$6.85	38,556	No	4	P	Direct
Common Stock	Acquisiton	2010-03-08	9,940	$0.00	48,496	No	4	A	Direct
Common Stock	Acquisiton	2010-03-08	5,960	$0.00	54,456	No	4	A	Direct

Equity Swap Involved	Form Type	Code	Nature of Ownership
No	4	P	Direct
No	4	P	Direct
No	4	A	Direct
No	4	A	Direct

Reported Derivative Transactions

Sec. Name	Sec. Type	Acquisiton - Disposition	Date	Amount	Price	Amount - 2	Price - 2
Common Stock	Restricted Stock Unit	Acquisiton	2010-03-08	32,850	$0.00	32,850	$0.00

Remaning Holdings	Exercise Date	Expiration Date	Equity Swap Involved	Transaction Form Type	Transaction Code	Nature of Ownership
32,850	2013-02-26	2013-02-26	No	4	A	Direct

Footnotes

Restricted shares of common stock granted under the 2006 Long Term Equity Incentive Plan, restrictions lapse on March 15, 2010.
Restricted shares of common stock granted under the 2006 Long Term Equity Incentive Plan, restrictions lapse on March 15, 2011.
Each restricted stock unit represents a contingent right to receive the value of one share of common stock, payable only in cash.
The restricted stock units vest and will be payable on February 26, 2013.