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TRIMAS CORP

For the period ended Mar 31, 2026. Filed Apr 30, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2026 · Filed Apr 30, 2026

TRS$38.32-0.8%Stored close · as of Nov 9, 2026

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Item 5. Other Information

Rule 10b5-1 Trading Arrangements

On March 5, 2026, Herbert K. Parker, TriMas'Chairman of the Board of Directors, adopted a trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act. The trading plan provides that Mr. Parker may sell up to an aggregate of 15,000 shares of the Company's common stock. First trades under Mr. Parker’s trading plan will not occur until June 8, 2026, at the earliest, and the trading plan is scheduled to terminate on December 4, 2026, subject to early termination for certain specified events set forth therein.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.