Power Solutions InternationaPSIX
13F holders, Q1 2025 (March 31)66holders +35
40new positions
5sold out
3famous investors
$25.31avg. 13F price*
At the end of Q1 2025, 66 institutions reported holding Power Solutions Internationa (PSIX) in their 13F filings, up 35 from Q4 2024. 40 opened new positions and 5 sold out. The largest holders were Gagnon Securities LLC ($13.3M), Gagnon Advisors, LLC ($8.2M) and Portolan Capital Management, LLC ($7.5M). 3 famous investors held it, including Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio), Ken Griffin (0.0% of Citadel Advisors's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Power Solutions Internationa
- CUSIP
- 73933G202
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2024 → Q1 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 40 | $27.0M |
| Exits | 5 | $1.2M |
All 13F filers, Q4 2024 → Q1 2025: 1,558,782 shares bought and 702,505 shares sold, net +856,277 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 66 holders
| Gagnon Securities LLC | 2.92% | Reduce -38.2% | 525,291 | $13.3M |
| Gagnon Advisors, LLC | 5.77% | Reduce -31.2% | 323,484 | $8.2M |
| Portolan Capital Management, LLC | 0.57% | Reduce -13.1% | 296,442 | $7.5M |
| Vanguard Group Inc. | 0.00% | New | 274,693 | $6.9M |
| Marshall Wace, LLP | 0.01% | Add +267.6% | 263,124 | $6.7M |
| S Squared Technology, LLC | 2.11% | Reduce -44.4% | 163,034 | $4.1M |
| Susquehanna International Group, LLP | 0.00% | New | 107,427 | $2.7M |
| Citadel Advisors | 0.00% | Add +759.1% | 105,774 | $2.7M |
| BlackRock, Inc. | 0.00% | Add +6248.9% | 96,947 | $2.5M |
| O'shaughnessy Asset Management, LLC | 0.02% | Add +10.6% | 80,570 | $2.0M |
| Geode Capital Management, LLC | 0.00% | New | 76,349 | $1.9M |
| Millennium Management | 0.00% | New | 58,200 | $1.5M |
| Two Sigma Investments, LP | 0.00% | New | 54,261 | $1.4M |
| Navellier & Associates Inc. | 0.15% | New | 39,666 | $1.1M |
| Valiant Capital Management, L.P. | 0.12% | Add +23.0% | 43,605 | $1.1M |
| Independent Advisor Alliance | 0.04% | New | 42,940 | $1.1M |
| Ritholtz Wealth Management | 0.03% | New | 39,855 | $1.0M |
| Corsair Capital Management, L.P. | 0.24% | Add +129.8% | 36,767 | $929K |
| Burney Co./ | 0.03% | New | 33,890 | $857K |
| Charles Schwab Investment Management Inc. | 0.00% | New | 30,945 | $782K |
| Squarepoint Ops LLC | 0.00% | New | 30,713 | $776K |
| Militia Capital Partners, LP | 0.55% | New | 27,000 | $683K |
| Man Group plc | 0.00% | New | 24,835 | $628K |
| Raymond James Financial Inc. | 0.00% | New | 24,729 | $625K |
| Goldman Sachs Group Inc. | 0.00% | New | 24,717 | $625K |
| Osaic Holdings, Inc. | 0.00% | Add +688.7% | 22,122 | $559K |
| Thoroughbred Financial Services, LLC | 0.03% | Add +108.8% | 21,783 | $550K |
| MML Investors Services, LLC | 0.00% | Add +47.8% | 21,081 | $533K |
| LPL Financial LLC | 0.00% | New | 20,900 | $528K |
| Two Sigma Advisers, LP | 0.00% | New | 20,800 | $526K |
| Cetera Investment Advisers | 0.00% | New | 20,403 | $516K |
| Wells Fargo & Company | 0.00% | Add +1731.4% | 20,145 | $509K |
| Morgan Stanley | 0.00% | Add +330.2% | 18,508 | $468K |
| Manatuck Hill Partners, LLC | 0.20% | Reduce -16.3% | 17,449 | $441K |
| Perritt Capital Management Inc | 0.21% | No change | 15,000 | $379K |
| Virtu Financial LLC | 0.02% | New | 14,864 | $376K |
| Tudor Investment Corporation | 0.00% | New | 12,347 | $312K |
| State Street Corp. | 0.00% | New | 12,100 | $306K |
| Northern Trust Corp. | 0.00% | New | 11,133 | $281K |
| Balyasny Asset Management L.P. | 0.00% | New | 10,868 | $275K |
| D.A. Davidson & Co. | 0.00% | New | 10,150 | $257K |
| World Equity Group, Inc. | 0.07% | Reduce -47.2% | 9,395 | $238K |
| Dimensional Fund Advisors LP | 0.00% | New | 9,070 | $229K |
| OMERS ADMINISTRATION Corp | 0.00% | New | 8,800 | $222K |
| EntryPoint Capital, LLC | 0.09% | New | 8,119 | $205K |
| Northwestern Mutual Wealth Management Co. | 0.00% | Add +0.1% | 7,957 | $201K |
| Spire Wealth Management | 0.00% | Add +84.5% | 5,984 | $151K |
| Bank of America Corp. | 0.00% | Add +1243.6% | 4,595 | $116K |
| Acadian Asset Management LLC | 0.00% | New | 4,469 | $112K |
| Royal Bank of Canada | 0.00% | New | 2,336 | $59K |
| JPMorgan Chase & Co. | 0.00% | New | 2,276 | $58K |
| Citigroup Inc. | 0.00% | Reduce -81.7% | 1,217 | $31K |
| Vestcor Inc | 0.00% | New | 1,137 | $29K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +3696.0% | 949 | $24K |
| Farther Finance Advisors, LLC | 0.00% | New | 878 | $23K |
| Principal Securities, Inc. | 0.00% | No change | 705 | $21K |
| CoreCap Advisors, LLC | 0.00% | New | 800 | $20K |
| NewEdge Advisors, LLC | 0.00% | New | 725 | $18K |
| Jones Financial Companies LLLP | 0.00% | New | 275 | $7K |
| Creative Financial Designs Inc. | 0.00% | New | 200 | $5K |
| West Paces Advisors Inc. | 0.00% | New | 85 | $2K |
| Stone House Investment Management, LLC | 0.00% | New | 65 | $2K |
| Larson Financial Group LLC | 0.00% | New | 40 | $1K |
| Quadrant Capital Group LLC | 0.00% | New | 18 | $456 |
| US Bancorp \de | 0.00% | Reduce -97.0% | 2 | $51 |
| Huntington National Bank | 0.00% | No change | 1 | $25 |
"% of holder's portfolio" is PSIX's weight in each manager's 13F, not the share of Power Solutions Internationa the manager owns.