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TRIMAS CORP

For the period ended Jun 30, 2025. Filed Jul 29, 2025.

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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.

Jun 30, 2025 · Filed Jul 29, 2025

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 May 21, 2025, Thomas A. Amato, TriMas' former President and Chief Executive Officer, modified an existing trading plan, which was originally adopted on March 5, 2025, intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act. As modified, the trading plan provides that Mr. Amato may sell up to an aggregate of 222,891 shares of the Company's common stock. First trades under Mr. Amato’s trading plan will not occur until August 19, 2025, at the earliest, and the trading plan is scheduled to terminate on December 31, 2025, subject to early termination for certain specified events set forth therein.

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