TRIMAS CORP — Director's Dealing 2013

Dec 13, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TRIMAS CORP (TRS)
CIK: 0000842633
Period of Report: 2013-12-10

Reporting Person: Tredwell Daniel P (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-12-10	Common Stock	S	5000	$36.29	Disposed	229814	Indirect
2013-12-11	Common Stock	S	5000	$35.54	Disposed	224814	Indirect
2013-12-12	Common Stock	S	5000	$35.68	Disposed	219814	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3448	Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by funds affiliated with the Reporting Person on November 29, 2013.

F2: Represents the weighted average sale price of $36.29 rounded to the nearest hundredths. The highest price at which the shares were sold was $36.60 and the lowest price at which the shares were sold was $35.78, in each case, rounded to the nearest hundredths. The Reporting Person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

F3: These securities are owned directly by funds affiliated with Heartland Industrial Associates, L.L.C. ("Heartland"). The Reporting Person is the Managing Member of Heartland. The Reporting Person disclaims beneficial ownership (as defined in Rule 16a-1(a)(2)) of these securities except to the extent of his pecuniary interest therein.

F4: Represents the weighted average sale price of $35.54 rounded to the nearest hundredths. The highest price at which the shares were sold was $35.90 and the lowest price at which the shares were sold was $35.23, in each case, rounded to the nearest hundredths. The Reporting Person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.

F5: Represents the weighted average sale price of $35.68 rounded to the nearest hundredths. The highest price at which the shares were sold was $35.89 and the lowest price at which the shares were sold was $35.25, in each case, rounded to the nearest hundredths. The Reporting Person undertakes that he will provide, upon request by the staff of the U.S. Securities and Exchange Commission, full information regarding the number of securities sold at each separate price.