WOOD DALE, IL
POWER SOLUTIONS INTERNATIONAL, INC.PSIX— Latest position per institution from SEC 13F filings
15
Institutional holders
8.35M
Total shares held
349.72M
Estimated value
417.50K
Avg. position size
POINT72 ASSET MANAGEMENT, L.P.
CIK 1603466
Shares
1.50M
Value
58.22M
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
818.97K
Value
31.85M
Filed
Jun 30, 2026
NEWTYN MANAGEMENT, LLC
CIK 1569241
Shares
600.89K
Value
23.37M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
539.98K
Value
30.85M
Filed
Dec 31, 2025
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 1164508
Shares
466.20K
Value
28.38M
Filed
Mar 31, 2026
SITUATIONAL AWARENESS LP
CIK 2045724
Shares
432.30K
Value
26.32M
Filed
Mar 31, 2026
SITUATIONAL AWARENESS PARTNERS LP
CIK 2038540
Shares
432.30K
Value
26.32M
Filed
Mar 31, 2026
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
378.94K
Value
9.74K
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
340.63K
Value
13.25M
Filed
Jun 30, 2026
YUNQI CAPITAL LTD
CIK 1912273
Shares
339K
Value
13.18M
Filed
Jun 30, 2026
BARCLAYS PLC
CIK 312069
Shares
311.11K
Value
12.10M
Filed
Jun 30, 2026
DIMENSIONAL FUND ADVISORS LP
CIK 354204
Shares
296.81K
Value
11.54M
Filed
Jun 30, 2026
OLP CAPITAL MANAGEMENT LTD
CIK 1738126
Shares
283.94K
Value
11.04M
Filed
Jun 30, 2026
MARSHALL WACE, LLP
CIK 1318757
Shares
263.12K
Value
6.65M
Filed
Mar 31, 2025
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
248.31K
Value
9.66M
Filed
Jun 30, 2026
DRIEHAUS CAPITAL MANAGEMENT LLC
CIK 938206
Shares
229.12K
Value
13.09M
Filed
Dec 31, 2025
CITADEL ADVISORS LLC
CIK 1423053
Shares
228.02K
Value
8.87M
Filed
Jun 30, 2026
BUSEY BANK
CIK 1427202
Shares
220K
Value
8.56M
Filed
Jun 30, 2026
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
216.24K
Value
8.41M
Filed
Jun 30, 2026
MILLENNIUM MANAGEMENT LLC
CIK 1273087
Shares
206.94K
Value
8.05M
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | POINT72 ASSET MANAGEMENT, L.P. | 1603466 | 1.50M | 58.22M | Jun 30, 2026 |
| 2 | BLACKROCK, INC. | 2012383 | 818.97K | 31.85M | Jun 30, 2026 |
| 3 | NEWTYN MANAGEMENT, LLC | 1569241 | 600.89K | 23.37M | Jun 30, 2026 |
| 4 | VANGUARD GROUP INC | 102909 | 539.98K | 30.85M | Dec 31, 2025 |
| 5 | ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 1164508 | 466.20K | 28.38M | Mar 31, 2026 |
| 6 | SITUATIONAL AWARENESS LP | 2045724 | 432.30K | 26.32M | Mar 31, 2026 |
| 7 | SITUATIONAL AWARENESS PARTNERS LP | 2038540 | 432.30K | 26.32M | Mar 31, 2026 |
| 8 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 378.94K | 9.74K | Jun 30, 2026 |
| 9 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 340.63K | 13.25M | Jun 30, 2026 |
| 10 | YUNQI CAPITAL LTD | 1912273 | 339K | 13.18M | Jun 30, 2026 |
| 11 | BARCLAYS PLC | 312069 | 311.11K | 12.10M | Jun 30, 2026 |
| 12 | DIMENSIONAL FUND ADVISORS LP | 354204 | 296.81K | 11.54M | Jun 30, 2026 |
| 13 | OLP CAPITAL MANAGEMENT LTD | 1738126 | 283.94K | 11.04M | Jun 30, 2026 |
| 14 | MARSHALL WACE, LLP | 1318757 | 263.12K | 6.65M | Mar 31, 2025 |
| 15 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 248.31K | 9.66M | Jun 30, 2026 |
| 16 | DRIEHAUS CAPITAL MANAGEMENT LLC | 938206 | 229.12K | 13.09M | Dec 31, 2025 |
| 17 | CITADEL ADVISORS LLC | 1423053 | 228.02K | 8.87M | Jun 30, 2026 |
| 18 | BUSEY BANK | 1427202 | 220K | 8.56M | Jun 30, 2026 |
| 19 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 216.24K | 8.41M | Jun 30, 2026 |
| 20 | MILLENNIUM MANAGEMENT LLC | 1273087 | 206.94K | 8.05M | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.