<SEC-DOCUMENT>0000897069-26-000710.txt : 20260317
<SEC-HEADER>0000897069-26-000710.hdr.sgml : 20260317
<ACCEPTANCE-DATETIME>20260317172409
ACCESSION NUMBER:		0000897069-26-000710
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20260315
FILED AS OF DATE:		20260317
DATE AS OF CHANGE:		20260317

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Nichols Craig D
		CENTRAL INDEX KEY:			0002060070
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38894
		FILM NUMBER:		26763601

	MAIL ADDRESS:	
		STREET 1:		135 SOUTH 84TH STREET
		STREET 2:		SUITE 300
		CITY:			MILWAUKEE
		STATE:			WI
		ZIP:			53214

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Mayville Engineering Company, Inc.
		CENTRAL INDEX KEY:			0001766368
		STANDARD INDUSTRIAL CLASSIFICATION:	METAL FORGING & STAMPINGS [3460]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				390944729
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		715 SOUTH STREET
		CITY:			MAYVILLE
		STATE:			WI
		ZIP:			53050
		BUSINESS PHONE:		920-387-4500

	MAIL ADDRESS:	
		STREET 1:		715 SOUTH STREET
		CITY:			MAYVILLE
		STATE:			WI
		ZIP:			53050

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Mayville Engineering Comapny, Inc.
		DATE OF NAME CHANGE:	20190130
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-03-15</periodOfReport>

    <issuer>
        <issuerCik>0001766368</issuerCik>
        <issuerName>Mayville Engineering Company, Inc.</issuerName>
        <issuerTradingSymbol>MEC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002060070</rptOwnerCik>
            <rptOwnerName>Nichols Craig D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>135 SOUTH 84TH STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>MILWAUKEE</rptOwnerCity>
            <rptOwnerState>WI</rptOwnerState>
            <rptOwnerZipCode>53214</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>false</isDirector>
            <isOfficer>true</isOfficer>
            <isTenPercentOwner>false</isTenPercentOwner>
            <isOther>false</isOther>
            <officerTitle>SVP, Operations &amp; Supply Chain</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>false</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5808</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5808</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2026-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1662</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>16.67</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4146</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1134</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>by 401(k) Plan</value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5808</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5808</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11614</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>false</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>14998</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>14998</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>14998</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.</footnote>
        <footnote id="F2">The restricted stock units will vest 1/3 on each of March 15, 2027, 2028 and 2029.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Garrett F. Bishop, Attorney-in-Fact for Craig D. Nichols</signatureName>
        <signatureDate>2026-03-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>poamec-12325.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
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   <font style="font-family: Times New Roman;">POWER OF ATTORNEY</font>
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   <font style="font-family: Times New Roman;">Know all by these presents, that, for good and valuable consideration, the sufficiency and receipt of which are hereby acknowledged, the undersigned hereby constitutes and appoints each of Sean P. Leuba and Garrett F. Bishop, and any of their substitutes, signing singly, the undersigned&#x2019;s true and lawful attorney&#x2011;in&#x2011;fact to:</font>
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     <font style="font-size: 10.0pt; min-width: -0.05pt; display: inline-block; text-align: left;">(1)</font>
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     <font>execute for and on behalf of the undersigned (in accordance with Section&#xa0;16(a) of the Securities Exchange Act of 1934, as amended, and the rules thereunder (the &#x201c;Exchange Act&#x201d;)), any and all Forms&#xa0;3, 4 and/or 5, and any amendments thereto, that are necessary or advisable for the undersigned to file under Section 16(a) (collectively, &#x201c;Documents&#x201d;) with respect to the undersigned&#x2019;s holdings of and transactions in the securities issued by Mayville Engineering Company, Inc., a Wisconsin corporation (the &#x201c;Company&#x201d;).</font>
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     <font style="font-size: 10.0pt; min-width: -0.05pt; display: inline-block; text-align: left;">(2)</font>
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     <font>do and perform any and all acts for and on behalf of the undersigned that may be necessary or desirable to complete and execute any such Documents and timely file such Documents with the United States Securities and Exchange Commission and any stock exchange or similar authority; and</font>
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     <font>take any other action of any type whatsoever in connection with the foregoing which, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such attorney-in-fact&#x2019;s discretion.</font>
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  <div style="text-indent: 72pt; margin-bottom: 6pt; text-align: justify; clear: both;">
   <font style="font-family: Times New Roman;">The undersigned hereby grants to each such attorney&#x2011;in&#x2011;fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that each such attorney&#x2011;in&#x2011;fact (or such attorney&#x2011;in&#x2011;fact&#x2019;s substitute or substitutes) shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted.&#xa0;&#xa0;The undersigned acknowledges that each attorney&#x2011;in&#x2011;fact, in serving in such capacity at the request of the undersigned, is not assuming, nor is such attorney&#x2011;in&#x2011;fact&#x2019;s substitute or substitutes or the Company assuming, any of the undersigned&#x2019;s responsibilities to comply with the Exchange Act.&#xa0;&#xa0;</font>
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   <font>The undersigned agrees that such attorney-in-fact may rely entirely on information furnished orally or in writing by the undersigned to such attorney-in-fact. The undersigned also agrees to indemnify and hold harmless the Company and such attorney-in-fact against any losses, claims, damages or liabilities (or actions in these respects) that arise out of or are based on any untrue statement or omission of necessary facts in the information provided by the undersigned to such attorney-in-fact for purposes of executing, acknowledging, delivering and filing Documents and agrees to reimburse the Company and such attorney-in-fact for any legal or other expenses reasonably incurred in connection with investigating or defending against any such loss, claim, damage, liability or action. </font>
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  <div style="text-indent: 72pt; margin-bottom: 6pt; text-align: justify;">
   <font style="font-family: Times New Roman;">This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Documents with respect to the undersigned&#x2019;s holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to each of the foregoing attorneys&#x2011;in&#x2011;fact.</font>
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   <font style="font-family: Times New Roman; font-weight: bold;">IN WITNESS WHEREOF,</font><font style="font-family: Times New Roman;"> the undersigned has caused this Power of Attorney to be executed as of this 19th day of January 2026.</font>
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     <font style="font-family: Times New Roman; text-decoration: underline;">&#xa0;/s/ Craig D. Nichols</font></div>
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     <font style="font-family: Times New Roman; text-decoration: underline;"><br></font><font style="font-family: Times New Roman;">Name: Craig D. Nichols</font></div>
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