<SEC-DOCUMENT>0000897069-25-000642.txt : 20250318
<SEC-HEADER>0000897069-25-000642.hdr.sgml : 20250318
<ACCEPTANCE-DATETIME>20250318173844
ACCESSION NUMBER: 0000897069-25-000642
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20250315
FILED AS OF DATE: 20250318
DATE AS OF CHANGE: 20250318
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: Leuba Sean P
CENTRAL INDEX KEY: 0001962754
ORGANIZATION NAME:
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-38894
FILM NUMBER: 25749837
MAIL ADDRESS:
STREET 1: 715 SOUTH STREET
CITY: MAYVILLE
STATE: WI
ZIP: 53050
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
IRS NUMBER: 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
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
<schemaVersion>X0508</schemaVersion>
<documentType>4</documentType>
<periodOfReport>2025-03-15</periodOfReport>
<issuer>
<issuerCik>0001766368</issuerCik>
<issuerName>Mayville Engineering Company, Inc.</issuerName>
<issuerTradingSymbol>MEC</issuerTradingSymbol>
</issuer>
<reportingOwner>
<reportingOwnerId>
<rptOwnerCik>0001962754</rptOwnerCik>
<rptOwnerName>Leuba Sean P</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>
<isOfficer>true</isOfficer>
<officerTitle>SVP, Corp. Development & GC</officerTitle>
</reportingOwnerRelationship>
</reportingOwner>
<aff10b5One>false</aff10b5One>
<nonDerivativeTable>
<nonDerivativeTransaction>
<securityTitle>
<value>Common Stock</value>
</securityTitle>
<transactionDate>
<value>2025-03-15</value>
</transactionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>M</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value>7264</value>
</transactionShares>
<transactionPricePerShare>
<value>0</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value>A</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>21756</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</nonDerivativeTransaction>
<nonDerivativeTransaction>
<securityTitle>
<value>Common Stock</value>
</securityTitle>
<transactionDate>
<value>2025-03-15</value>
</transactionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>F</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value>3217</value>
</transactionShares>
<transactionPricePerShare>
<value>14.35</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value>D</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>18539</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</nonDerivativeTransaction>
<nonDerivativeHolding>
<securityTitle>
<value>Common Stock</value>
</securityTitle>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>2000</value>
<footnoteId id="F1"/>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>I</value>
</directOrIndirectOwnership>
<natureOfOwnership>
<value>by ESOP and/or 401(k) Plan</value>
</natureOfOwnership>
</ownershipNature>
</nonDerivativeHolding>
</nonDerivativeTable>
<derivativeTable>
<derivativeTransaction>
<securityTitle>
<value>Restricted Stock Units</value>
</securityTitle>
<conversionOrExercisePrice>
<value>0</value>
</conversionOrExercisePrice>
<transactionDate>
<value>2025-03-15</value>
</transactionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>M</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value>7264</value>
</transactionShares>
<transactionPricePerShare>
<value>0</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value>D</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<footnoteId id="F2"/>
</exerciseDate>
<expirationDate>
<footnoteId id="F2"/>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value>7264</value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>14526</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>2025-03-15</value>
</transactionDate>
<transactionCoding>
<transactionFormType>4</transactionFormType>
<transactionCode>A</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionAmounts>
<transactionShares>
<value>13938</value>
</transactionShares>
<transactionPricePerShare>
<value>0</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value>A</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<exerciseDate>
<footnoteId id="F3"/>
</exerciseDate>
<expirationDate>
<footnoteId id="F3"/>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value>13938</value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>13938</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeTransaction>
<derivativeHolding>
<securityTitle>
<value>Stock Option (right to buy)</value>
</securityTitle>
<conversionOrExercisePrice>
<value>16.22</value>
</conversionOrExercisePrice>
<exerciseDate>
<footnoteId id="F4"/>
</exerciseDate>
<expirationDate>
<value>2033-02-28</value>
</expirationDate>
<underlyingSecurity>
<underlyingSecurityTitle>
<value>Common Stock</value>
</underlyingSecurityTitle>
<underlyingSecurityShares>
<value>21552</value>
</underlyingSecurityShares>
</underlyingSecurity>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>21552</value>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
</ownershipNature>
</derivativeHolding>
</derivativeTable>
<footnotes>
<footnote id="F1">Reflects the most recent ESOP and 401(k) balance.</footnote>
<footnote id="F2">The restricted stock units will vest 1/3 on each of March 15, 2025, 2026 and 2027.</footnote>
<footnote id="F3">The restricted stock units will vest 1/3 on each of March 15, 2026, 2027 and 2028.</footnote>
<footnote id="F4">The options will vest 50% on each of February 28, 2024 and February 28, 2025.</footnote>
</footnotes>
<ownerSignature>
<signatureName>/s/ Russell E. Ryba, Attorney-in-Fact for Sean P. Leuba</signatureName>
<signatureDate>2025-03-18</signatureDate>
</ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>