<SEC-DOCUMENT>0000842633-25-000094.txt : 20250523
<SEC-HEADER>0000842633-25-000094.hdr.sgml : 20250523
<ACCEPTANCE-DATETIME>20250523175919
ACCESSION NUMBER:		0000842633-25-000094
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250521
FILED AS OF DATE:		20250523
DATE AS OF CHANGE:		20250523

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SEDAGHAT SHAWN
		CENTRAL INDEX KEY:			0001321614
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10716
		FILM NUMBER:		25983681

	MAIL ADDRESS:	
		STREET 1:		WIESENSTRASSE 9
		CITY:			ZURICH
		STATE:			V8
		ZIP:			8008

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Trend International Holding AG
		CENTRAL INDEX KEY:			0002040467
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			V8
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10716
		FILM NUMBER:		25983680

	BUSINESS ADDRESS:	
		STREET 1:		WIESENSTRASSE 9 ZURICH
		CITY:			ZURICH
		STATE:			V8
		ZIP:			8008
		BUSINESS PHONE:		41 44 268 69 38

	MAIL ADDRESS:	
		STREET 1:		WIESENSTRASSE 9 ZURICH
		CITY:			ZURICH
		STATE:			V8
		ZIP:			8008

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TRIMAS CORP
		CENTRAL INDEX KEY:			0000842633
		STANDARD INDUSTRIAL CLASSIFICATION:	METAL FORGING & STAMPINGS [3460]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				382687639
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		38505 WOODWARD AVENUE
		STREET 2:		SUITE 200
		CITY:			BLOOMFIELD HILLS
		STATE:			MI
		ZIP:			48304
		BUSINESS PHONE:		2486315400

	MAIL ADDRESS:	
		STREET 1:		38505 WOODWARD AVENUE
		STREET 2:		SUITE 200
		CITY:			BLOOMFIELD HILLS
		STATE:			MI
		ZIP:			48304
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1748037553.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-05-21</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000842633</issuerCik>
        <issuerName>TRIMAS CORP</issuerName>
        <issuerTradingSymbol>TRS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001321614</rptOwnerCik>
            <rptOwnerName>SEDAGHAT SHAWN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>WIESENSTRASSE 9</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ZURICH</rptOwnerCity>
            <rptOwnerState>V8</rptOwnerState>
            <rptOwnerZipCode>8008</rptOwnerZipCode>
            <rptOwnerStateDescription>SWITZERLAND</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002040467</rptOwnerCik>
            <rptOwnerName>Trend International Holding AG</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>WIESENSTRASSE 9</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ZURICH</rptOwnerCity>
            <rptOwnerState>V8</rptOwnerState>
            <rptOwnerZipCode>8008</rptOwnerZipCode>
            <rptOwnerStateDescription>SWITZERLAND</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-05-21</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>410172</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>25.4278</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1810821</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-05-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>72937</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>26.1625</value>
                    <footnoteId id="F4"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1883758</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4174807</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F5"/>
                    <footnoteId id="F6"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $25.085 to $25.75 inclusive. Shawn Sedaghat (&quot;Mr.
Sedaghat&quot;) 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.</footnote>
        <footnote id="F2">The securities reported herein are directly held by Swan Family Office, LLC (&quot;Swan Family Office&quot;). Mr. Sedaghat may be deemed to beneficially own the reported securities by virtue of the fact that Mr. Sedaghat is the Managing Member of Swan Family Office. Each of Swan Family Office and Mr. Sedaghat disclaims beneficial ownership of the securities to which this filing relates for purposes of Section 16 of the Securities Exchange Act of 1934, as amended (&quot;Section 16&quot;), except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed to be an admission that either Swan Family Office or Mr. Sedaghat is the beneficial owner of such securities for purposes of Section 16, or for any other purpose.</footnote>
        <footnote id="F3">Trend (as defined in footnote (5) below) does not have beneficial ownership of these securities, and specifically disclaims beneficial ownership of these securities. This report shall not be deemed to
be an admission that Trend is the beneficial owner of such securities for purposes of Section 16, or for any other purpose.</footnote>
        <footnote id="F4">The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $25.94 to $26.25 inclusive. Mr. Sedaghat 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 (4) to this Form 4.</footnote>
        <footnote id="F5">4,170,667 of the securities reported in Table One, Column Five are held directly by Trend International Holding AG (&quot;Trend&quot;). Mr. Sedaghat (and together with Trend, the &quot;Reporting Persons&quot;) may
be deemed to beneficially own the reported securities by virtue of the fact that Mr. Sedaghat is the Chairman of the Board of, and controls, Trend. Each of Trend and Mr. Sedaghat disclaims beneficial
ownership of the securities to which this filing relates for purposes of Section 16, except to the extent of its or his pecuniary interest therein, if any. This report shall not be deemed to be an admission that
either Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.</footnote>
        <footnote id="F6">4,140 of the securities reported in Table One, Column Five (the &quot;Director Shares&quot;) are directly held by Mr. Sedaghat. Trend does not have beneficial ownership, and specifically disclaims beneficial
ownership of the Director Shares to which this filing relates for purposes of Section 16. This report shall not be deemed to be an admission that Trend is the beneficial owner of the Director Shares for
purposes of Section 16, or for any other purpose.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jodi F. Robin, as attorney-in-fact</signatureName>
        <signatureDate>2025-05-23</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Jodi F. Robin, as attorney-in-fact</signatureName>
        <signatureDate>2025-05-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
