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PSIX

Power Solutions International, Inc.

Company with tickers: PSIX

CIK
1137091
CUSIP
73933G202
Shares Outstanding
23,050,450
Price History Institutional Holders Short Volume Short Interest Fails to Deliver Financials SEC Filings Earnings Calls Insider Trades Congressional Trades
Holders: 195
Total Value: $415,257,627
Total Shares: 6,820,922
Showing 1–100 of 203 holdings by value · page 1 of 3

Institutional Ownership Trend

25 quarters

Holder Concentration

Across 195 13F filers · Δ vs Dec 31, 2025
Top Holder
10.5%
+0.5 pts
Top 5
34.4%
+3.1 pts
Top 10
52.3%
+5.2 pts
HHI
371
Broadly held +45

Quarterly Activity

vs Dec 31, 2025
New
190
Increased
1
Decreased
3
Sold Out
192
Unchanged
1
Holder count: -2
Institutional value: +8.1%
Shares held: +1.5%

Top Buyers

vs Dec 31, 2025
Institution Added Now Holds
Mid Hennion & Walsh Asset Management, Inc. +7,160 16,150

Top Sellers

vs Dec 31, 2025
Institution Sold Now Holds
Mega GOLDMAN SACHS GROUP INC −57,305 44,306
Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. −1,330 158
Large Rockefeller Capital Management L.P. −652 1,160

Top New Positions

vs Dec 31, 2025
Institution Acquired Value (USD)
Mega BlackRock, Inc. 715,556 $43,563,045
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 466,204 $28,382,499
Large Situational Awareness Partners LP 432,300 $26,318,424
Large Situational Awareness LP 432,300 $26,318,424
Large Allspring Global Investments Holdings, LLC 301,168 $18,335,106

Top Sold-Out Positions

vs Dec 31, 2025
Institution Previously Held Last Value (USD)
Mega BlackRock, Inc. 673,610 $38,490,068
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 443,096 $25,318,505
Mid Situational Awareness LP 432,300 $24,701,622
Large Allspring Global Investments Holdings, LLC 328,761 $18,785,401
Large DRIEHAUS CAPITAL MANAGEMENT LLC 229,120 $13,091,916
100 of 100 shown
All Common Calls Puts
Export CSV
Holder Value (USD) % of 13F Shares Action
Mega BlackRock, Inc. $43,563,045 10.49% 715,556 View
Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP $28,382,499 6.83% 466,204 View
Large Situational Awareness LP $26,318,424 6.34% 432,300 View
Large Situational Awareness Partners LP $26,318,424 6.34% 432,300 View
Large Allspring Global Investments Holdings, LLC $18,335,106 4.42% 301,168 View
Mega DIMENSIONAL FUND ADVISORS LP $17,243,710 4.15% 283,241 View
Mega BARCLAYS PLC $14,553,120 3.50% 239,046 View
Mid Busey Bank $13,393,600 3.23% 220,000 View
Large SG Americas Securities, LLC $13,174,127 3.17% 216,395 View
Mega GEODE CAPITAL MANAGEMENT, LLC $11,950,560 2.88% 196,297 View
Mega STATE STREET CORP $10,395,077 2.50% 170,747 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $10,367,864 2.50% 170,300 View
Mega LPL Financial LLC $9,508,542 2.29% 156,185 View
Small NAVELLIER & ASSOCIATES INC $6,544,721 1.58% 107,502 View
Small Hel Ved Capital Management Ltd $6,141,330 1.48% 100,876 View
Mega MILLENNIUM MANAGEMENT LLC $5,958,934 1.43% 97,880 View
Large Man Group plc $5,398,046 1.30% 88,667 View
Mega FIRST TRUST ADVISORS LP $5,243,168 1.26% 86,123 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $4,852,136 1.17% 79,700 View
Small OnyxPoint Global Management LP $4,743,708 1.14% 77,919 View
Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC $4,550,962 1.10% 74,753 View
Large VOLORIDGE INVESTMENT MANAGEMENT, LLC $4,421,714 1.06% 72,630 View
Mid Valiant Capital Management, L.P. $4,224,341 1.02% 69,388 View
Mega CITADEL ADVISORS LLC $4,097,224 0.99% 67,300 View
Small HUSSMAN STRATEGIC ADVISORS, INC. $3,835,440 0.92% 63,000 View
Small CVFG LLC $3,663,149 0.88% 60,170 View
Large SEI INVESTMENTS CO $3,497,860 0.84% 57,455 View
Mid ANTIPODES PARTNERS Ltd $3,219,151 0.78% 52,877 View
Large CAPITAL FUND MANAGEMENT S.A. $2,880,415 0.69% 47,313 View
Mega TWO SIGMA INVESTMENTS, LP $2,823,066 0.68% 46,371 View
Mega GOLDMAN SACHS GROUP INC $2,697,348 0.65% 44,306 View
Large Cambridge Investment Research Advisors, Inc. $2,695,157 0.65% 44,270 View
Mega WELLS FARGO & COMPANY/MN $2,669,708 0.64% 43,852 View
Mega CITADEL ADVISORS LLC $2,392,584 0.58% 39,300 View
Small Meros Investment Management, LP $2,390,514 0.58% 39,266 View
Mega FRANKLIN RESOURCES INC $2,383,086 0.57% 39,144 View
Mega VICTORY CAPITAL MANAGEMENT INC $2,271,798 0.55% 37,316 View
Mega Bank of New York Mellon Corp $2,110,708 0.51% 34,670 View
Large Cetera Investment Advisers $2,039,967 0.49% 33,508 View
Mega ALLIANCEBERNSTEIN L.P. $2,035,827 0.49% 33,440 View
Mega RAYMOND JAMES FINANCIAL INC $2,000,760 0.48% 32,864 View
Mega JANE STREET GROUP, LLC $1,996,619 0.48% 32,796 View
Small Bridge City Capital, LLC $1,996,437 0.48% 32,793 View
Mega BANK OF AMERICA CORP /DE/ $1,917,414 0.46% 31,495 View
Large Tidal Investments LLC $1,788,593 0.43% 29,379 View
Mid BURNEY CO/ $1,766,737 0.43% 29,020 View
Mega AQR CAPITAL MANAGEMENT LLC $1,712,431 0.41% 28,128 View
Mega CITADEL ADVISORS LLC $1,702,143 0.41% 27,959 View
Mega AMERIPRISE FINANCIAL INC $1,642,785 0.40% 26,984 View
Large FEDERATED HERMES, INC. $1,634,566 0.39% 26,849 View
Mega JANE STREET GROUP, LLC $1,619,408 0.39% 26,600 View
Mega JANE STREET GROUP, LLC $1,564,616 0.38% 25,700 View
Small THOROUGHBRED FINANCIAL SERVICES, LLC $1,464,407 0.35% 24,054 View
Small De Lisle Partners LLP $1,278,480 0.31% 21,000 View
Mid Defiance ETFs, LLC $1,270,443 0.31% 20,868 View
Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC $1,116,113 0.27% 18,333 View
Mega Swiss National Bank $1,108,016 0.27% 18,200 View
Small WORLD EQUITY GROUP, INC. $1,084,151 0.26% 17,808 View
Mega Nuveen, LLC $1,014,869 0.24% 16,670 View
Mid ARGA Investment Management, LP $988,569 0.24% 16,238 View
Mid Hennion & Walsh Asset Management, Inc. $983,212 0.24% 16,150 View
Small Polymer Capital Management (HK) LTD $974,080 0.23% 16,000 View
Mid Moran Wealth Management, LLC $969,635 0.23% 15,927 View
Large Gotham Asset Management, LLC $969,026 0.23% 15,917 View
Small Clear Creek Financial Management, LLC $954,659 0.23% 15,681 View
Large Russell Investments Group, Ltd. $944,491 0.23% 15,514 View
Small Capelight Capital Asset Management LP $913,200 0.22% 15,000 View
Mega D. E. Shaw & Co., Inc. $907,112 0.22% 14,900 View
Mid ALGERT GLOBAL LLC $883,368 0.21% 14,510 View
Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC $836,734 0.20% 13,744 View
Large Squarepoint Ops LLC $827,115 0.20% 13,586 View
Large NEW YORK STATE COMMON RETIREMENT FUND $823,949 0.20% 13,534 View
Mid OAK RIDGE INVESTMENTS LLC $810,130 0.20% 13,307 View
Mega BNP PARIBAS ARBITRAGE, SA $801,241 0.19% 13,161 View
Mid OSAIC HOLDINGS, INC. $778,533 0.19% 12,788 View
Large Qube Research & Technologies Ltd $763,313 0.18% 12,538 View
Mid STEPHENS INC /AR/ $730,560 0.18% 12,000 View
Small Kerrisdale Advisers, LLC $710,165 0.17% 11,665 View
Mid XTX Topco Ltd $703,955 0.17% 11,563 View
Large MML INVESTORS SERVICES, LLC $692,266 0.17% 11,371 View
Mid RITHOLTZ WEALTH MANAGEMENT $645,997 0.16% 10,611 View
Mega MORGAN STANLEY $636,622 0.15% 10,457 View
Mega MASSACHUSETTS FINANCIAL SERVICES CO /MA/ $618,053 0.15% 10,152 View
Mega RHUMBLINE ADVISERS $600,824 0.14% 9,869 View
Micro Kassira Wealth Management LLC $581,343 0.14% 9,549 View
Large CREDIT AGRICOLE S A $578,360 0.14% 9,500 View
Large COMMONWEALTH EQUITY SERVICES, LLC $572,211 0.14% 9,399 View
Small Bay Rivers Group $559,243 0.13% 9,186 View
Mid INDEPENDENT FINANCIAL GROUP, LLC $534,100 0.13% 8,773 View
Large CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM $532,030 0.13% 8,739 View
Large ALPS ADVISORS INC $531,117 0.13% 8,724 View
Small Maxi Investments CY Ltd $526,855 0.13% 8,654 View
Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP $516,688 0.12% 8,487 View
Large Balyasny Asset Management L.P. $511,331 0.12% 8,399 View
Mega Invesco Ltd. $510,965 0.12% 8,393 View
Large Creative Planning $471,880 0.11% 7,751 View
Mid GREAT VALLEY ADVISOR GROUP, INC. $453,251 0.11% 7,445 View
Large DANSKE BANK A/S $423,846 0.10% 6,962 View
Mega DEUTSCHE BANK AG\ $414,775 0.10% 6,813 View
Mid Vestcor Inc $410,392 0.10% 6,741 View
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