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.
13F holders, Q4 2024
Institutional positions in Power Solutions International, Inc. as of Dec 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 31
- +27 vs. Q3 2024
- Shares held
- 2.31M
- +31.5K (+1.4%) vs. Q3 2024
- Total value
- $68.7M
- +$21.9M (+46.9%) vs. Q3 2024
- New holders
- 27
- 0 more added
- Sold out
- 0
- 3 more reduced
Compare with Q3 2024: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting PSIX on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 157 | $328.5M |
| Q1 2026 | 204 | $445.5M |
| Q4 2025 | 195 | $393.2M |
| Q3 2025 | 203 | $535.2M |
| Q2 2025 | 126 | $226.4M |
| Q1 2025 | 66 | $80.1M |
| Q4 2024 | 31 | $68.7M |
| Q3 2024 | 4 | $46.8M |
| Q2 2024 | 4 | $17.4M |
| Q1 2024 | 4 | $6.14M |
| Q4 2023 | 4 | $5.40M |
| Q3 2023 | 4 | $8.66M |
| Q2 2023 | 4 | $7.47M |
| Q1 2023 | 4 | $6.87M |
| Q4 2022 | 4 | $8.10M |
| Q3 2022 | 4 | $4.47M |
| Q2 2022 | 4 | $4.37M |
| Q1 2022 | 4 | $7.87M |
| Q4 2021 | 4 | $7.49M |
| Q3 2021 | 4 | $9.95M |
| Q2 2021 | 4 | $15.2M |
| Q1 2021 | 4 | $18.3M |
Institutions, Q4 2024
Shares, value and share of portfolio for each institution holding Power Solutions International, Inc.; share changes are against Q3 2024.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Gagnon Securities LLC | 850,146 | $25.3M | 5.10% | −169,481−16.6% | Reduced |
| Gagnon Advisors, LLC | 470,165 | $14.0M | 8.96% | −287,579−38.0% | Reduced |
| Portolan Capital Management, LLC | 341,287 | $10.2M | 0.68% | +341,287 | New |
| S Squared Technology, LLC | 293,034 | $8.72M | 3.62% | −206,840−41.4% | Reduced |
| O'Shaughnessy Asset Management, LLC | 72,868 | $2.17M | 0.02% | +72,868 | New |
| Marshall Wace, LLP | 71,588 | $2.13M | 0.00% | +71,588 | New |
| Valiant Capital Management, L.P. | 35,450 | $1.05M | 0.14% | +35,450 | New |
| Manatuck Hill Partners, LLC | 20,850 | $620.3K | 0.25% | +20,850 | New |
| World Equity Group, Inc. | 17,794 | $529.4K | 0.11% | +17,794 | New |
| Corsair Capital Management, L.P. | 16,000 | $476.0K | 0.10% | +16,000 | New |
| Schonfeld Strategic Advisors LLC | 15,300 | $455.2K | 0.00% | +15,300 | New |
| Perritt Capital Management Inc | 15,000 | $446.3K | 0.23% | +15,000 | New |
| MML Investors Services, LLC | 14,262 | $424.0K | 0.00% | +14,262 | New |
| Citadel Advisors LLC | 12,312 | $366.3K | 0.00% | +12,312 | New |
| Thoroughbred Financial Services, LLC | 10,433 | $310.0K | 0.02% | +10,433 | New |
| Astoria Portfolio Advisors LLC. | 7,277 | $263.4K | 0.09% | +7,277 | New |
| Thompson Davis & Co., Inc. | 8,450 | $251.4K | 0.16% | +8,450 | New |
| Northwestern Mutual Wealth Management Co | 7,950 | $236.5K | 0.00% | +7,950 | New |
| Evernest Financial Advisors, LLC | 7,500 | $223.1K | 0.06% | +7,500 | New |
| Citigroup Inc | 6,650 | $197.8K | 0.00% | +6,650 | New |
| Morgan Stanley | 4,302 | $128.0K | 0.00% | +4,302 | New |
| Spire Wealth Management | 3,243 | $96.5K | 0.00% | +3,243 | New |
| Advisor Group Holdings, Inc. | 2,805 | $83.4K | 0.00% | +2,805 | New |
| BlackRock, Inc. | 1,527 | $45.4K | 0.00% | +1,527 | New |
| Wells Fargo & Company | 1,100 | $32.7K | 0.00% | +1,100 | New |
| Principal Securities, Inc. | 705 | $21.0K | 0.00% | +705 | New |
| Bank of America Corp | 342 | $10.2K | 0.00% | +342 | New |
| MAI Capital Management | 300 | $8.93K | 0.00% | +300 | New |
| US Bancorp | 66 | $1.96K | 0.00% | +66 | New |
| Tower Research Capital LLC (TRC) | 25 | $744 | 0.00% | +25 | New |
| Huntington National Bank | 1 | $30 | 0.00% | 00.0% | Unchanged |