Daniel P. Tredwell - 05 Mar 2026 Form 4 Insider Report for TRIMAS CORP (TRS)

Role: Director
Signature: /s/ Jodi F. Robin, as attorney-in-fact
Issuer symbol: TRS
Transactions as of: 05 Mar 2026
Net transactions value: +$2,354
Form type: 4
Filing time: 09 Mar 2026, 17:09:51 UTC
Previous filing: 14 Nov 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Tredwell Daniel P	Director	300 ATLANTIC, 7TH FLOOR, STAMFORD	/s/ Jodi F. Robin, as attorney-in-fact	09 Mar 2026	0001399401

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	TRS	Common Stock	Purchase	$2,354	+60	+0.1%	$39.38	60,543	05 Mar 2026	Direct	F1
holding	TRS	Common Stock						7,500	05 Mar 2026	By spouse

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $39.38 to $39.381 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 purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.

Content

The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $39.38 to $39.381 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 purchased at each separate price within the ranges set forth in footnote (1) to this Form 4.