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, Q3 2025
Institutional positions in Power Solutions International, Inc. as of Sep 30, 2025. 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
- 203
- +78 vs. Q2 2025
- Shares held
- 5.45M
- +1.97M (+56.4%) vs. Q2 2025
- Total value
- $533.2M
- +$307.4M (+136.1%) vs. Q2 2025
- New holders
- 91
- 65 more added
- Sold out
- 13
- 32 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: 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 | $533.2M |
| Q2 2025 | 126 | $226.2M |
| 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, Q3 2025
Shares, value and share of portfolio for each institution holding Power Solutions International, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Arrowstreet Capital, Limited Partnership | 325,085 | $31.9M | 0.02% | +251,883+344.1% | Added |
| Vanguard Group Inc | 502,381 | $49.3M | 0.00% | +140,743+38.9% | Added |
| BlackRock, Inc. | 551,584 | $54.2M | 0.00% | +44,617+8.8% | Added |
| Gagnon Advisors, LLC | 0 | $0 | 0.00% | −180,405−100.0% | Sold out |
| S Squared Technology, LLC | 0 | $0 | 0.00% | −39,574−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −16,900−100.0% | Sold out |
| Change Path, LLC | 0 | $0 | 0.00% | −6,548−100.0% | Sold out |
| Cozad Asset Management Inc | 0 | $0 | 0.00% | −5,131−100.0% | Sold out |
| Arete Wealth Advisors, LLC | 0 | $0 | 0.00% | −4,745−100.0% | Sold out |
| State of Wyoming | 0 | $0 | 0.00% | −4,312−100.0% | Sold out |
| DRW Securities, LLC | 0 | $0 | 0.00% | −3,960−100.0% | Sold out |
| Kathmere Capital Management, LLC | 0 | $0 | 0.00% | −3,499−100.0% | Sold out |
| Twin Peaks Wealth Advisors, LLC | 0 | $0 | 0.00% | −800−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −1,045−100.0% | Sold out |
| SJS Investment Consulting Inc. | 0 | $0 | 0.00% | −82−100.0% | Sold out |
| Rothschild Investment LLC | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Avantax Advisory Services, Inc. | – | – | – | – | Not filed |