<SEC-DOCUMENT>0001019056-25-000093.txt : 20250214
<SEC-HEADER>0001019056-25-000093.hdr.sgml : 20250214
<ACCEPTANCE-DATETIME>20250214131748
ACCESSION NUMBER:		0001019056-25-000093
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250214
DATE AS OF CHANGE:		20250214

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			POWER SOLUTIONS INTERNATIONAL, INC.
		CENTRAL INDEX KEY:			0001137091
		STANDARD INDUSTRIAL CLASSIFICATION:	ENGINES & TURBINES [3510]
		ORGANIZATION NAME:           	06 Technology
		IRS NUMBER:				330963637
		STATE OF INCORPORATION:			IL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-84256
		FILM NUMBER:		25626120

	BUSINESS ADDRESS:	
		STREET 1:		201 MITTEL DRIVE
		CITY:			WOOD DALE
		STATE:			IL
		ZIP:			60191
		BUSINESS PHONE:		630-350-9400

	MAIL ADDRESS:	
		STREET 1:		201 MITTEL DRIVE
		CITY:			WOOD DALE
		STATE:			IL
		ZIP:			60191

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FORMAT INC
		DATE OF NAME CHANGE:	20060901

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	FORMAT INC /FA/
		DATE OF NAME CHANGE:	20010321

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Gagnon Neil
		CENTRAL INDEX KEY:			0001070170
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	MAIL ADDRESS:	
		STREET 1:		1370 AVENUE OF THE AMERICAS
		STREET 2:		26TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10019

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GAGNON NEIL
		DATE OF NAME CHANGE:	19980910
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13G/A</submissionType>
    <previousAccessionNumber>0001019056-25-000091</previousAccessionNumber>
    <filerInfo>
      <filer>
        <filerCredentials>
          <!-- Field: Pseudo-Tag; ID: Name; Data: Gagnon Neil -->
          <cik>0001070170</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <amendmentNo>12</amendmentNo>
      <securitiesClassTitle>Common Stock, par value $0.001 per share</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>02/05/2025</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0001137091</issuerCik>
        <issuerName>Power Solutions International, Inc.</issuerName>
        <issuerCusip>73933G202</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>201 Mittel Drive</com:street1>
          <com:city>Wood Dale</com:city>
          <com:stateOrCountry>IL</com:stateOrCountry>
          <com:zipCode>60191</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(c)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>Neil Gagnon</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>X1</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>127268.00</soleVotingPower>
        <sharedVotingPower>995086.00</sharedVotingPower>
        <soleDispositivePower>127268.00</soleDispositivePower>
        <sharedDispositivePower>1013986.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>1141254.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>5.0</classPercent>
      <typeOfReportingPerson>IN</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>Gagnon Securities LLC</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>563695.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>575820.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>575820.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>2.5</classPercent>
      <typeOfReportingPerson>BD</typeOfReportingPerson>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>Gagnon Advisors, LLC</reportingPersonName>
      <memberGroup>b</memberGroup>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>0.00</soleVotingPower>
        <sharedVotingPower>335457.00</sharedVotingPower>
        <soleDispositivePower>0.00</soleDispositivePower>
        <sharedDispositivePower>335457.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>335457.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>1.5</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>Power Solutions International, Inc.</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>201 Mittel Drive, Wood Dale, IL 60191</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Neil Gagnon has sole voting and dispositive power over 127,268 shares of the Issuer's Common Stock, par value $0.001 per share (the "Common Stock"). In addition, Mr. Gagnon has shared voting power over 995,086 shares of Common Stock and shared dispositive power over 1,013,986 shares of Common Stock.

Mr. Gagnon is the managing member and principal owner of Gagnon Securities LLC ("GS"), an investment adviser registered with the U.S. Securities and Exchange Commission ("SEC") under the Investment Advisers Act of 1940, as amended (the "Advisers Act"), and a registered broker-dealer, in its role as investment manager to several customer accounts, foundations, partnerships and trusts (collectively, the "Accounts") to which it furnishes investment advice. GS and Mr. Gagnon may be deemed to share voting power with respect to 563,695 shares of Common Stock held in the Accounts and dispositive power with respect to 575,820 shares of Common Stock held in the Accounts. GS and Mr. Gagnon expressly disclaim beneficial ownership of all securities held in the Accounts.

Mr. Gagnon is also the Chief Executive Officer of Gagnon Advisors, LLC ("Gagnon Advisors"), an investment adviser registered with the SEC under the Advisers Act. Mr. Gagnon and Gagnon Advisors, in its role as investment manager to Gagnon Investment Associates, LLC ("GIA"), a private investment fund, may be deemed to share voting and dispositive power with respect to the 335,457 shares of Common Stock held by GIA. Gagnon Advisors and Mr. Gagnon expressly disclaim beneficial ownership of all securities held by GIA.</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>1370 Ave. of Americas, 26th Floor, New York, NY 10019</principalBusinessOfficeOrResidenceAddress>
        <citizenship>Gagnon Securities LLC   Delaware limited liability company

Gagnon Advisors, LLC   Delaware limited liability company

Neil Gagnon   USA</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>Y</notApplicableFlag>
      </item3>
      <item4>
        <amountBeneficiallyOwned>Gagnon Securities LLC   575,820

Gagnon Advisors, LLC   335,457

Neil Gagnon   1,141,254</amountBeneficiallyOwned>
        <classPercent>Gagnon Securities LLC  2.5%

Gagnon Advisors, LLC   1.5%

Neil Gagnon   5.0%

Calculation of percentage of beneficial ownership is based on 22,999,616 Common Stock outstanding as of October 31, 2024, based on the Issuer's Form 10-Q filed with the Securities and Exchange Commission on November 7, 2024.</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>Gagnon Securities LLC   0

Gagnon Advisors, LLC   0

Neil Gagnon   127,268</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>Gagnon Securities LLC   563,695

Gagnon Advisors, LLC   335,457

Neil Gagnon  995,086</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>Gagnon Securities LLC  0

Gagnon Advisors, LLC   0

Neil Gagnon   127,268</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>Gagnon Securities LLC   575,820

Gagnon Advisors, LLC   335,457

Neil Gagnon   1,013,986</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>N</notApplicableFlag>
        <classOwnership5PercentOrLess>Y</classOwnership5PercentOrLess>
      </item5>
      <item6>
        <notApplicableFlag>Y</notApplicableFlag>
      </item6>
      <item7>
        <notApplicableFlag>Y</notApplicableFlag>
      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
      </item9>
      <item10>
        <notApplicableFlag>N</notApplicableFlag>
        <certifications>By signing below I certify that, to the best of my knowledge and belief, the securities referred to above 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.</certifications>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>Neil Gagnon</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Neil Gagnon</signature>
        <title>Neil Gagnon</title>
        <date>02/14/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Gagnon Securities LLC</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Neil Gagnon</signature>
        <title>Neil Gagnon/Managing Member</title>
        <date>02/14/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>Gagnon Advisors, LLC</reportingPersonName>
      <signatureDetails>
        <signature>/s/ Neil Gagnon</signature>
        <title>Neil Gagnon/Chief Executive Officer</title>
        <date>02/14/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
