TRIMAS (TRS) counsel reports tax-withholding of 1,128 shares in Form 4

Rhea-AI Filing Summary

TRIMAS CORP General Counsel and Secretary Jodi F. Robin reported a routine tax-related share disposition. On the transaction date, 1,128 shares of Common Stock were withheld at a price of $36.93 per share to cover tax obligations. After this non-market transaction, Robin directly owned 36,157 shares.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Robin Jodi F.

Role General Counsel and Secretary

Type	Security	Shares	Price	Value
Tax Withholding	Common Stock	1,128	$36.93	$42K

Holdings After Transaction: Common Stock — 36,157 shares (Direct)

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^*

Robin Jodi F.

(Last) (First) (Middle)

38505 WOODWARD AVENUE

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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	General Counsel and Secretary

3. Date of Earliest Transaction (Month/Day/Year)
03/11/2026

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	03/11/2026		F		1,128	D	$36.93	36,157	D

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:

Remarks:

	/s/ Jodi F. Robin	03/12/2026
	** 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 insider transaction did TRIMAS CORP (TRS) report for Jodi F. Robin?

TRIMAS CORP reported that General Counsel and Secretary Jodi F. Robin had 1,128 Common Stock shares withheld to satisfy tax obligations. The transaction used code F, indicating payment of tax liability by delivering securities rather than an open-market trade.

Was the TRS Form 4 transaction a buy or sell of shares?

The Form 4 transaction was a tax-withholding disposition, not an open-market buy or sell. Code F shows shares were delivered to cover tax liabilities associated with equity compensation, so it does not reflect a discretionary trading decision.

How many TRS shares were involved in Jodi F. Robin’s tax withholding?

The filing shows 1,128 TRIMAS CORP Common Stock shares were used for tax withholding. They were valued at $36.93 per share for this purpose, consistent with a code F transaction that settles tax obligations through share delivery instead of cash.

How many TRS shares does Jodi F. Robin hold after the Form 4 transaction?

After the tax-withholding disposition, Jodi F. Robin directly owned 36,157 TRIMAS CORP Common Stock shares. This post-transaction balance indicates the event was relatively small compared with her remaining direct holdings disclosed in the filing.

What does transaction code F mean in the TRS Form 4 filing?

Transaction code F means shares were delivered to pay an exercise price or tax liability. In this TRIMAS CORP filing, it reflects a tax-withholding disposition tied to equity compensation, not a voluntary open-market purchase or sale of Common Stock.

Does the TRS Form 4 indicate any derivative exercises for Jodi F. Robin?

The transaction summary shows no derivative exercises for this filing, with exerciseCount and exerciseShares both zero. The only activity reported was a single tax-withholding disposition of 1,128 Common Stock shares categorized under transaction code F.