Herbert K. Parker - 30 Jun 2026 Form 4 Insider Report for TRIMAS CORP (TRS)

Reporting relationship: Director
Issuer ticker: TRS
Reported as of: 30 Jun 2026
Net transaction value: -$675,465
SEC form: 4
Accepted by SEC: 01 Jul 2026, 16:34:15 UTC
Prior SEC filing: 26 Jun 2026
Source filing: View source filing
Reporting owner signature: /s/ Jodi F. Robin, as attorney-in-fact

Key filing fact

Herbert K. Parker filed Form 4 for TRIMAS CORP (TRS) on 01 Jul 2026.

Key facts

This page summarizes Herbert K. Parker's Form 4 filing for TRIMAS CORP (TRS).
1 reported transaction and 0 derivative rows are listed below.
Accepted by SEC: 01 Jul 2026, 16:34.

Change

Previous filing in this sequence was filed on 26 Jun 2026.
Current net transaction value: -$675,465.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4 disclosures.

View source filing

Reporting Owners (1)

CIK 0001436496 Primary reporting owner

Parker Herbert K

Relationship: Director
Address: 400 ATLANTIC STREET, STAMFORD
Signature: /s/ Jodi F. Robin, as attorney-in-fact
Signature date: 01 Jul 2026

Reported non-derivative transactions

Shares, units, or other non-derivative securities reported in this filing.

TRS transaction

Common Stock

Sale

Transaction value: $675,465
Shares: -15,000
Change %: -21%
Price: $45.03
Shares after: 57,762
Date: 30 Jun 2026
Ownership: Direct
Footnotes: F1, F2

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Rule 10b5-1 trading plan

These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.

Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).

Explanation of responses 2 footnotes

Footnote F1

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $45.000 to $45.120 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 sold at each separate price within the ranges set forth in footnote (1) to this Form 4.

Footnote F2

These sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 5, 2026.