Power Solutions International, Inc
Ownership
Ownership Structure
Who owns Power Solutions International, Inc (PSIX)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 30.4% of the shares are freely tradable; institutional investors hold 30.6%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Point72 Asset Management, L.P. | 6.49 | 1,497,155 | +27,884.2 | 06/30/2026 |
| BlackRock Inc | 3.55 | 818,968 | +14.5 | 06/30/2026 |
| Newtyn Management LLC | 2.61 | 600,890 | +0.0 | 06/30/2026 |
| Situational Awareness Partners LP | 1.87 | 432,300 | +0.0 | 03/31/2026 |
| Vanguard Capital Management, LLC | 1.48 | 340,634 | -0.1 | 06/30/2026 |
| Yunqi Capital Ltd | 1.47 | 339,000 | +0.0 | 06/30/2026 |
| Barclays PLC | 1.35 | 311,110 | +30.1 | 06/30/2026 |
| Dimensional Fund Advisors, Inc. | 1.29 | 296,812 | +4.8 | 06/30/2026 |
| OCEANLINK MANAGEMENT LTD. | 1.23 | 283,940 | +0.0 | 06/30/2026 |
Funds
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| Vanguard MStar Total Stk Mkt Idx Invest | 1.11 | 256,749 | +0.0 | 09/30/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: October 30, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.