Power Solutions International, Inc. (NASDAQ:PSIX) showed up in the 13F filings of 191 institutional investors as of December 2025.
| Owner Name | Date | Shares Held | Change (QoQ) | Change (%) | Value (USD) |
|---|---|---|---|---|---|
| BlackRock, Inc. | 31 Mar, 2026 | 715,556 | 41,946 | 6.23% | $43,563,049.00 |
| BlackRock, Inc. | 31 Mar, 2026 | 673,610 | 122,026 | 22.12% | $38,490,078.00 |
| VANGUARD GROUP INC | 31 Mar, 2026 | 539,978 | 37,597 | 7.48% | $30,854,344.00 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 31 Mar, 2026 | 466,204 | 23,108 | 5.22% | $28,382,500.00 |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 31 Mar, 2026 | 443,096 | 118,011 | 36.30% | $25,318,505.00 |
| Situational Awareness LP | 31 Mar, 2026 | 432,300 | 0 | 0.00% | $26,318,424.00 |
| Situational Awareness Partners LP | 31 Mar, 2026 | 432,300 | 432,300 | 0.00% | $26,318,424.00 |
| Situational Awareness LP | 31 Mar, 2026 | 432,300 | 432,300 | 0.00% | $24,701,622.00 |
| VANGUARD CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 340,974 | 340,974 | 0.00% | $20,758,497.00 |
| Allspring Global Investments Holdings, LLC | 31 Mar, 2026 | 328,761 | 122,672 | 59.52% | $20,228,665.00 |
| Allspring Global Investments Holdings, LLC | 31 Mar, 2026 | 301,168 | -27,593 | -8.39% | $19,931,299.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 283,241 | 81,350 | 40.29% | $17,239,500.00 |
| Barclays Plc | 31 Mar, 2026 | 239,046 | 212,172 | 789.51% | $14,553,121.00 |
| DRIEHAUS CAPITAL MANAGEMENT LLC | 31 Mar, 2026 | 229,120 | 94,618 | 70.35% | $13,091,917.00 |
| ANTIPODES PARTNERS Ltd | 31 Mar, 2026 | 228,413 | 228,413 | 0.00% | $13,052,497.00 |
| Busey Bank | 31 Mar, 2026 | 220,000 | 0 | 0.00% | $13,393,600.00 |
| Busey Bank | 31 Mar, 2026 | 220,000 | 0 | 0.00% | $12,570,800.00 |
| Goldman Sachs Group Inc | 31 Mar, 2026 | 203,222 | 165,770 | 442.62% | $11,612,104.00 |
| DIMENSIONAL FUND ADVISORS LP | 31 Mar, 2026 | 201,891 | 179,511 | 802.10% | $11,537,862.00 |
| GEODE CAPITAL MANAGEMENT, LLC | 31 Mar, 2026 | 196,297 | 4,626 | 2.41% | $11,952,238.00 |