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Power Solutions International, Inc.

PSIX
Exchange
Nasdaq
Industry
Engines & Turbines
SEC CIK
0001137091

No open-market purchases or sales by Power Solutions International, Inc. insiders were filed in the last 90 days; 157 institutions reported holding it in 13F filings for Q2 2026, worth $328.5M in total; no superinvestor holds it.

Q4 2025 vs. Q3 2025

How the institutions holding Power Solutions International, Inc. changed between Q3 2025 and Q4 2025.

All holders in Q4 2025All holders in Q3 2025

13F holders of PSIX: Q3 2025 compared with Q4 2025
MeasureQ3 2025Of which not filed for Q4 2025Q4 2025Change
Holders2033195−5
Shares5.45M56.6K6.85M+1.46M (+27.0%)
Value$533.2M$5.60M$393.2M−$134.4M (−25.5%)

3 institutions that held it in Q3 2025 haven't filed for Q4 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (54)

Institutions that held Power Solutions International, Inc. at the end of Q4 2025 but not at the end of Q3 2025.

Institutions new to PSIX in Q4 2025
InstitutionSharesValue% of portfolio
Situational Awareness LP432,300$24.7M0.63%
Antipodes Partners Ltd228,413$13.1M0.27%
Qube Research & Technologies Ltd114,249$6.53M0.01%
Beacon Harbor Wealth Advisors, Inc.103,216$5.90M1.31%
First Trust Advisors LP81,074$4.63M0.00%
Adage Capital Partners GP, L.L.C.75,000$4.29M0.01%
Ruffer LLP38,063$2.18M0.10%
Hussman Strategic Advisors, Inc.31,500$1.80M0.44%
Platinum Investment Management Ltd20,000$1.14M0.26%
IMC-Chicago, LLC16,436$939.2K0.02%
Capital Fund Management S.A.14,861$849.2K0.01%
XTX Topco Ltd12,515$715.1K0.02%
Fox Run Management, L.L.C.9,122$521.2K0.08%
Moran Wealth Management, LLC8,925$510.0K0.02%
Massachusetts Financial Services Co8,902$508.7K0.00%
Freestone Grove Partners LP8,803$503.0K0.00%
Winton Group Ltd8,743$499.6K0.02%
Two Sigma Securities, LLC7,413$423.6K0.06%
Sequent Planning LLC6,163$352.2K0.09%
AlphaGrep UK Ltd5,922$338.4K0.11%
Universal- Beteiligungs- und Servicegesellschaft mbH5,139$299.9K0.00%
Sentinus, LLC5,000$285.7K0.03%
Allianz Asset Management GmbH4,654$265.9K0.00%
Balyasny Asset Management LLC4,555$260.3K0.00%
Integrated Quantitative Investments LLC4,553$260.2K0.06%
Revisor Wealth Management LLC3,432$233.8K0.06%
Sigma Planning Corp4,035$230.6K0.01%
Martingale Asset Management L P3,928$224.4K0.01%
Virginia Retirement Systems Et Al3,850$220.0K0.00%
PharVision Advisers, LLC3,843$219.6K0.11%
Meridian Wealth Management, LLC3,656$208.9K0.01%
Triumph Capital Management3,547$202.7K0.04%
OP Asset Management Ltd3,134$179.1K0.00%
Quest Partners LLC3,113$177.9K0.01%
BNP PARIBAS ASSET MANAGEMENT Holding S.A.1,618$92.0K0.00%
Public Employees Retirement System of Ohio1,343$76.7K0.00%
Indiana Trust & Investment Management CO1,000$57.1K0.02%
State of Wyoming853$48.7K0.01%
Strive Financial Group ,LLC400$22.9K0.01%
Quarry LP283$16.2K0.00%
Financial Freedom, LLC235$13.4K0.01%
The PNC Financial Services Group, Inc.200$11.4K0.00%
Darwin Advisors, LLC150$8.57K0.00%
Sound Income Strategies, LLC100$7.60K0.00%
Sunbelt Securities, Inc.105$6.00K0.00%
Costello Asset Management, INC100$5.71K0.00%
CoreCap Advisors, LLC71$4.06K0.00%
International Assets Investment Management, LLC25$1.43K0.00%
Assetmark, Inc20$1.14K0.00%
Nisa Investment Advisors, LLC7$4000.00%
Central Trust Co2$1150.00%
Massmutual Trust Co FSB2$1140.00%
Pinpoint Asset Management (Singapore) Pte. Ltd.2$1140.00%
EverSource Wealth Advisors, LLC1$570.00%

Sold out (59)

Institutions that held Power Solutions International, Inc. at the end of Q3 2025 and filed for Q4 2025 without it.

Institutions that sold out of PSIX in Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Portolan Capital Management, LLC195,804$19.2M
Gagnon Securities LLC64,770$6.36M
Kadensa Capital Ltd59,710$5.86M
EAM Investors, LLC51,698$5.00M
Mercuria Capital Strategies, LLC46,490$4.57M
Acadian Asset Management LLC41,184$4.04M
Jane Street Group, LLC19,463$1.91M
Two Sigma Advisers, LP17,600$1.73M
Twinbeech Capital LP16,302$1.60M
Westbourne Investments, Inc.18,660$1.60M
Voleon Capital Management LP13,608$1.34M
Militia Capital Partners, LP10,000$982.2K
Schonfeld Strategic Advisors LLC9,954$977.7K
Graham Capital Management, L.P.9,890$971.4K
Sierra Summit Advisors LLC9,752$957.8K
Entropy Technologies, LP8,800$864.3K
Perigon Wealth Management, LLC8,540$838.8K
Omers Administration Corp8,300$815.2K
Scientech Research LLC8,121$797.6K
D.A. Davidson & Co.7,848$770.8K
Occudo Quantitative Strategies LP6,675$655.6K
Squarepoint Ops LLC6,335$622.2K
Independent Financial Group, LLC5,193$510.1K
Aviva PLC5,183$509.1K
Counterpoint Mutual Funds LLC4,677$459.4K
Aviance Capital Partners, LLC4,600$451.8K
Ground Swell Capital, LLC4,581$449.9K
Diametric Capital, LP4,233$415.8K
Benjamin Edwards Inc3,743$367.6K
Rathbone Brothers plc3,695$362.9K
Perbak Capital Partners LLP3,666$360.1K
Prelude Capital Management, LLC3,600$353.6K
Marex Group plc3,253$319.5K
Commerce Bank3,000$294.7K
Intech Investment Management LLC2,963$291.0K
Mutual Advisors, LLC3,577$288.0K
Baron Wealth Management LLC2,909$285.7K
Janus Henderson Group PLC2,903$285.1K
HighTower Advisors, LLC2,881$283.0K
StoneX Group Inc.2,727$267.8K
Quadrature Capital Ltd2,637$259.3K
Cornerstone Wealth Management, LLC2,600$255.4K
Cadence Wealth Management LLC2,500$245.6K
Savvy Advisors, Inc.2,466$242.2K
Thompson Davis & Co., Inc.2,400$235.7K
Arizona State Retirement System2,037$200.1K
National Bank of Canada1,989$195.3K
Comprehensive Financial Planning, Inc.1,899$186.5K
MeadowBrook Investment Advisors LLC1,405$138.0K
Canada Pension Plan Investment Board500$49.1K
Global Retirement Partners, LLC464$45.6K
Wolff Wiese Magana LLC250$24.6K
Larson Financial Group LLC239$23.5K
Federation des caisses Desjardins du Quebec150$14.7K
GPS Wealth Strategies Group, LLC100$9.82K
Bogart Wealth, LLC40$3.93K
Rise Advisors, LLC18$1.77K
Northwestern Mutual Wealth Management Co17$1.67K
SRS Capital Advisors, Inc.5$491

Not filed for Q4 2025 yet (3)

Institutions that held Power Solutions International, Inc. at the end of Q3 2025 and haven't filed a 13F for Q4 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding PSIX in Q3 2025 that haven't filed for Q4 2025
InstitutionShares, Q3 2025Value, Q3 2025
Cubist Systematic Strategies, LLC39,035$3.83M
Point72 Hong Kong Ltd9,982$980.4K
Wolverine Trading, LLC7,625$786.0K