8-K

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported) May 14, 2025

TRIMAS CORPORATION

(Exact name of registrant as specified in its charter)

Registrant’s telephone number, including area code (248) 631-5450

Not Applicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

☐    Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐    Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐    Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐    Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2).

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 5.07. Submission of Matters to a Vote of Security Holders.

TriMas Corporation (the "Company") held its 2025 Annual Meeting of Shareholders on May 14, 2025 (the "Annual Meeting").

There were a total of 40,716,445 shares of the Company’s common stock outstanding and entitled to vote at the Annual Meeting, and there were 37,408,528 shares of common stock represented in person or by proxy at the Annual Meeting, which constituted a quorum to conduct business at the Annual Meeting.

The items voted upon at the Annual Meeting and the results of the vote on each proposal were as follows:

Proposal 1. Election of directors for a three-year term:

Proposal 2. Ratification of the appointment of Deloitte & Touche LLP as the Company’s independent registered public accounting firm for the year ending December 31, 2025:

Proposal 3. Approval, on a non-binding advisory basis, of the compensation paid to the Company’s Named Executive Officers:

Based on the votes set forth above, each of the nominees for director were elected as directors and proposals 2 and 3 were approved by the shareholders of the Company.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.