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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	Executive Vice President & Cfo	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	Explanation
Common Stock	Disposition	2013-10-31	7,400	$37.93	55,012	No	4	S	Indirect	See Footnote
Common Stock	Disposition	2013-10-31	667	$0.00	54,345	No	5	G	Indirect	See Footnote
Common Stock	Acquisiton	2013-10-31	667	$0.00	667	No	5	A	Indirect	By Son
Common Stock	Disposition	2013-11-04	667	$37.77	0	No	4	S	Indirect	By Son

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	See Footnote
No	5	G	Indirect	See Footnote
No	5	A	Indirect	By Son
No	4	S	Indirect	By Son

Footnotes

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.91 to $38.01 inclusive. The reporting person undertakes to provide to TriMas Corporation, any security holder of TriMas Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4.
Through the Aldo Mark Zeffiro Trust under agreement dated October 8, 2010, as Trustee.