Institutional Ownership
Power Solutions Intl Inc
CUSIP 73933G202COM NEWPSIXQ1 2026
13D / 13G Filings
18
Schedule 13D/13G on record
Beneficial Filers
5
Distinct reporting persons
Largest Stake
49.8%
Max % of class reported
Institutional Holders
195
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
18 filings · latest Sep 22, 2025
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Sep 22, 2025 | Gary S. Winemaster | 13D/A | 6.3% | — | SEC |
| 2 | Aug 28, 2025 | Weichai America Corp. | 13D/A | 46.5% | — | SEC |
| 3 | Aug 25, 2025 | Weichai America Corp. | 13D/A | 47.5% | — | SEC |
| 4 | Aug 19, 2025 | Weichai America Corp. | 13D/A | 48.7% | — | SEC |
| 5 | Aug 15, 2025 | Weichai America Corp. | 13D/A | 49.8% | — | SEC |
| 6 | Aug 7, 2025 | Gary S. Winemaster | 13D/A | 8.4% | — | SEC |
| 7 | Apr 23, 2025 | Gary S. Winemaster | 13D/A | 9.5% | — | SEC |
| 8 | Feb 14, 2025 | Neil Gagnon | 13G/A | 5.0% | — | SEC |
| 9 | Jan 23, 2025 | Neil Gagnon | 13G/A | 7.3% | — | SEC |
| 10 | Jan 23, 2025 | Neil Gagnon | 13G/A | 7.3% | — | SEC |
8 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Power Solutions Intl Inc.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 715.6K | $43.56M |
| 2 | Arrowstreet Capital, Limited Partnership | 466.2K | $28.38M |
| 3 | Situational Awareness Partners LP | 432.3K | $26.32M |
| 4 | Situational Awareness LP | 432.3K | $26.32M |
| 5 | Allspring Global Investments Holdings, LLC | 301.2K | $19.93M |
| 6 | Dimensional Fund Advisors LP | 283.2K | $17.24M |
| 7 | Barclays PLC | 239.0K | $14.55M |
| 8 | Busey Bank | 220.0K | $13.39M |
| 9 | Geode Capital Management, LLC | 196.3K | $11.95M |
| 10 | State Street Corp | 170.7K | $10.40M |