[SCHEDULE 13G/A] Trimas Corporation SEC Filing

Rhea-AI Filing Summary

Bank of America Corporation reported beneficial ownership of 3,763,259 shares of TriMas Corporation common stock, representing 9.2% of the outstanding class on a Schedule 13G/A. The filing shows no sole voting or dispositive power and material shared voting (3,431,042) and shared dispositive (3,431,719) powers, reflecting holdings held through several wholly owned subsidiaries. The statement certifies these securities are held in the ordinary course of business and not for the purpose of changing or influencing control. The filing identifies the specific BofA entities holding the positions.

Positive

• Material ownership disclosed: Bank of America reports 3,763,259 shares, representing 9.2% of TriMas common stock.
• Passive intent stated: Filing certifies holdings are in the ordinary course of business and not for the purpose of changing or influencing control.

Negative

• None.

Insights

Securities Analyst

TL;DR: Material passive stake disclosed—9.2% ownership via BofA entities with shared voting/dispositive power; filing asserts no intent to influence control.

The Schedule 13G/A reports a substantial position of 3,763,259 TriMas shares, equal to 9.2% of the class, a level that is material by regulatory thresholds. The filing records 0 sole voting/dispositive power and significant shared voting/dispositive power figures, indicating the stake is held through multiple Bank of America subsidiaries rather than by a single portfolio. The attestation that holdings are in the ordinary course and not for control classifies this as a passive disclosure rather than an activist or control-seeking filing. For market participants, the position size is meaningful for liquidity and ownership concentration but is presented as non-control.

Corporate Governance Expert

TL;DR: Disclosure shows a major financial group with a sizeable passive stake; governance influence appears limited based on the filing.

The filing names Bank of America Corporation and identifies multiple wholly owned subsidiaries that hold the reported securities, including broker-dealers, a bank, and a non-U.S. institution. The absence of sole voting/dispositive power and the explicit certification that the shares are not held to influence control indicate limited direct governance intent. The reported shared voting and dispositive powers suggest custody, client, or intermediary arrangements through the listed subsidiaries rather than centralized control. From a governance perspective, this is a material ownership disclosure but does not, on its face, signal a governance campaign or change in control strategy.

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 1)

TRIMAS CORP

(Name of Issuer)

Common Stock

(Title of Class of Securities)

896215209

(CUSIP Number)

06/30/2025

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

SCHEDULE 13G

CUSIP No. 896215209

1

Names of Reporting Persons

BANK OF AMERICA CORP /DE/

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

DELAWARE

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 0.00
6	Shared Voting Power 3,431,042.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 3,431,719.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

3,763,259.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

9.2 %

12

Type of Reporting Person (See Instructions)

HC

SCHEDULE 13G

Item 1.
(a)	Name of issuer: TRIMAS CORP
(b)	Address of issuer's principal executive offices: 38505 WOODWARD AVENUE, 38505 WOODWARD AVENUE, BLOOMFIELD HILLS, MICHIGAN, 48304.
Item 2.
(a)	Name of person filing: BANK OF AMERICA CORP /DE/
(b)	Address or principal business office or, if none, residence: 100 N TRYON ST CHARLOTTE, NC 28255
(c)	Citizenship: Delaware
(d)	Title of class of securities: Common Stock
(e)	CUSIP No.: 896215209
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: 3,763,259.00
(b)	Percent of class: 9.2%
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: 0.00
	(ii) Shared power to vote or to direct the vote: 3,431,042.00
	(iii) Sole power to dispose or to direct the disposition of: 0.00
	(iv) Shared power to dispose or to direct the disposition of: 3,431,719.00
Item 5.	Ownership of 5 Percent or Less of a Class.
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
	If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary. This statement on Schedule 13G is being filed by Bank of America Corporation on behalf of itself and its wholly owned subsidiaries BofA Securities, Inc., a broker dealer registered under section 15 of the Act (15 U.S.C. 78o); Bank of America N.A., a bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c); Merrill Lynch Pierce Fenner & Smith, Inc., a broker dealer registered under section 15 of the Act (15 U.S.C. 78o); U.S. Trust Co of Delaware, a corporation which holding does not exceed one percent of the reported securities; and Merrill Lynch International, a non-U.S. institution in accordance with section 240.13d-1(b)(1)(ii)(J).
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

BANK OF AMERICA CORP /DE/

Signature:	Andres Ortiz
Name/Title:	Authorized Signatory
Date:	08/12/2025

FAQ

How many TriMas (TRS) shares does Bank of America report owning?

The filing reports beneficial ownership of 3,763,259 shares of TriMas common stock.

What percentage of TriMas does Bank of America own according to the filing?

Bank of America reports ownership of 9.2% of the outstanding class.

Does the filing indicate Bank of America intends to influence control of TriMas (TRS)?

No. The filing certifies the securities are held in the ordinary course of business and not to change or influence control.

Which Bank of America subsidiaries are identified as holding the securities?

The filing names subsidiaries including BofA Securities, Inc., Bank of America N.A., Merrill Lynch Pierce Fenner & Smith, Inc., U.S. Trust Co of Delaware, and Merrill Lynch International.

What voting and dispositive powers does Bank of America report for these shares?

Reported powers are: Sole voting power 0, Shared voting power 3,431,042, Sole dispositive power 0, Shared dispositive power 3,431,719.