TriMas: Bank of America reports 0.5% ownership stake

The ownership calculation uses 35,873,873 TriMas shares outstanding as of July 23, 2026, based on the issuer’s Form 10-Q.

Available on EDGAR 11/06/2026 - 02:54 PM EST Accepted by SEC EDGAR 11/06/2026 - 02:54 PM EST Learn about SEC filing dates

Rhea-AI Filing Summary

Bank of America Corporation reported beneficial ownership of 167,183 shares of TriMas Corp. (TRS) common stock, equal to 0.5% of the class, as of September 30, 2026. It reported shared voting power over 166,665 shares and shared dispositive power over 81,295 shares, with no sole voting or dispositive power. The ownership calculation uses 35,873,873 TriMas shares outstanding as of July 23, 2026, as reported in the issuer’s Form 10-Q. Bank of America filed on behalf of itself and wholly owned subsidiaries, including BofA Securities, Inc., Bank of America, N.A., Merrill Lynch International, Merrill Lynch, Pierce, Fenner & Smith, Inc., and U.S. Trust Co. of Delaware.

Key Figures

Beneficial ownership: 167,183 shares Ownership percentage: 0.5% Shared voting power: 166,665 shares +2 more

5 metrics

Beneficial ownership 167,183 shares As of September 30, 2026

Ownership percentage 0.5% Of TriMas common stock

Shared voting power 166,665 shares TriMas common stock

Shared dispositive power 81,295 shares TriMas common stock

Shares outstanding 35,873,873 shares As of July 23, 2026

Key Terms

beneficial ownership, Shared Voting Power, Shared Dispositive Power

3 terms

beneficial ownership financial

"Amount beneficially owned: 167,183.00"

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

Shared Voting Power financial

"Shared Voting Power 166,665.00"

Shared voting power occurs when two or more parties jointly have the right to vote or decide how a block of company shares is cast, like co-owners who must agree before moving a piece of furniture. Investors care because who controls voting rights affects board elections, major corporate decisions and takeover outcomes, and shared control can alter regulatory disclosures and the practical influence any holder has over a company’s direction and value.

Shared Dispositive Power financial

"Shared Dispositive Power 81,295.00"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many TRS shares did Bank of America report beneficially owning?

Bank of America reported beneficial ownership of 167,183 TriMas common shares, or 0.5% of the class, as of September 30, 2026.

What share count did Bank of America use to calculate its TRS ownership percentage?

The calculation relied on 35,873,873 TriMas shares outstanding as of July 23, 2026. The issuer’s Form 10-Q reporting that share count was filed on July 31, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 3)

TRIMAS CORP

(Name of Issuer)

Common Stock

(Title of Class of Securities)

896215209

(CUSIP Number)

09/30/2026

(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)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 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 166,665.00
7	Sole Dispositive Power 0.00
8	Shared Dispositive Power 81,295.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

167,183.00

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)

0.5 %

12

Type of Reporting Person (See Instructions)

HC

Comment for Type of Reporting Person: The beneficial ownership calculation relies on the 35,873,873 outstanding shares disclosed in the Form 10-Q by the issuer on July 31, 2026, which reports share totals as of July 23, 2026.

SCHEDULE 13G

Item 1.
(a)	Name of issuer: TRIMAS CORP
(b)	Address of issuer's principal executive offices: 38505 WOODWARD AVENUE, SUITE 200, 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: 167,183.00
(b)	Percent of class: 0.5%
(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: 166,665.00
	(iii) Sole power to dispose or to direct the disposition of: 0.00
	(iv) Shared power to dispose or to direct the disposition of: 81,295.00
Item 5.	Ownership of 5 Percent or Less of a Class.
	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 International, a non-U.S. institution in accordance with section 240.13d-1(b)(1)(ii)(J); Merrill Lynch Pierce Fenner & Smith, Inc., a broker dealer registered under section 15 of the Act (15 U.S.C. 78o); and U.S. Trust Co of Delaware, a corporation which holding does not exceed one percent of the reported securities.
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:	/s/ Monica Yako
Name/Title:	Authorized Signatory
Date:	11/06/2026