TRS insider purchase: 2,000 shares at $31.46; plus 1,000 indirect

Rhea-AI Filing Summary

TriMas (TRS) director reported an open‑market purchase of the company’s common stock. On 11/11/2025, the insider bought 2,000 shares at a weighted average price of $31.46 (with individual trades ranging from $31.44 to $31.48).

Following the transaction, the insider beneficially owns 17,653 shares directly. An additional 1,000 shares are held indirectly by the insider’s spouse.

Insider Trade Summary

Net Buyer: 2,000 shares ($62,920)

Net Buy 2 txns

Insider Fielkow Jeffrey A

Role Director

Bought 2,000 shs ($63K)

Type	Security	Shares	Price	Value
Purchase	Common Stock	2,000	$31.46	$63K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 17,653 shares (Direct); Common Stock — 1,000 shares (Indirect, By spouse)

Footnotes (1)

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Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Fielkow Jeffrey A

(Last) (First) (Middle)

38505 WOODWARD AVE., SUITE 200

(Street)

BLOOMFIELD HILLS MI 48304

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
TRIMAS CORP [ TRS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/11/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/11/2025		P		2,000	A	$31.46(1)	17,653	D
Common Stock								1,000	I	By spouse

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $31.44 to $31.48 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.

Remarks:

	/s/ Jodi F. Robin, as attorney-in-fact	11/12/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What did TriMas (TRS) disclose in this Form 4?

A director purchased 2,000 shares of common stock on 11/11/2025 at a weighted average price of $31.46.

How many TRS shares does the insider own after the trade?

The insider beneficially owns 17,653 shares directly after the reported transaction.

What was the price range for the purchased TRS shares?

Trades occurred between $31.44 and $31.48, yielding a weighted average of $31.46.

Was any indirect ownership reported for the TRS insider?

Yes. 1,000 shares are indirectly owned, held by the insider’s spouse.

What is the insider’s relationship to TriMas (TRS)?

The reporting person is a Director of TriMas.

What transaction code was used for this trade?

The filing reports a P code, indicating an open‑market purchase of common stock.