POWER SOLUTIONS INTERNATIONAL, INC.

PublicCIK: 1137091
PSIXNASDAQ
Location

WOOD DALE, IL

13F Filings

Institutional Holders

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

1

POINT72 ASSET MANAGEMENT, L.P.

CIK 1603466

Shares

1.50M

Value

58.22M

Filed

Jun 30, 2026

2

BLACKROCK, INC.

CIK 2012383

Shares

818.97K

Value

31.85M

Filed

Jun 30, 2026

3

NEWTYN MANAGEMENT, LLC

CIK 1569241

Shares

600.89K

Value

23.37M

Filed

Jun 30, 2026

4

VANGUARD GROUP INC

CIK 102909

Shares

539.98K

Value

30.85M

Filed

Dec 31, 2025

5

ARROWSTREET CAPITAL, LIMITED PARTNERSHIP

CIK 1164508

Shares

466.20K

Value

28.38M

Filed

Mar 31, 2026

6

SITUATIONAL AWARENESS LP

CIK 2045724

Shares

432.30K

Value

26.32M

Filed

Mar 31, 2026

7

SITUATIONAL AWARENESS PARTNERS LP

CIK 2038540

Shares

432.30K

Value

26.32M

Filed

Mar 31, 2026

8

CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM

CIK 1081019

Shares

378.94K

Value

9.74K

Filed

Jun 30, 2026

9

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

340.63K

Value

13.25M

Filed

Jun 30, 2026

10

YUNQI CAPITAL LTD

CIK 1912273

Shares

339K

Value

13.18M

Filed

Jun 30, 2026

11

BARCLAYS PLC

CIK 312069

Shares

311.11K

Value

12.10M

Filed

Jun 30, 2026

12

DIMENSIONAL FUND ADVISORS LP

CIK 354204

Shares

296.81K

Value

11.54M

Filed

Jun 30, 2026

13

OLP CAPITAL MANAGEMENT LTD

CIK 1738126

Shares

283.94K

Value

11.04M

Filed

Jun 30, 2026

14

MARSHALL WACE, LLP

CIK 1318757

Shares

263.12K

Value

6.65M

Filed

Mar 31, 2025

15

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 1446194

Shares

248.31K

Value

9.66M

Filed

Jun 30, 2026

16

DRIEHAUS CAPITAL MANAGEMENT LLC

CIK 938206

Shares

229.12K

Value

13.09M

Filed

Dec 31, 2025

17

CITADEL ADVISORS LLC

CIK 1423053

Shares

228.02K

Value

8.87M

Filed

Jun 30, 2026

18

BUSEY BANK

CIK 1427202

Shares

220K

Value

8.56M

Filed

Jun 30, 2026

19

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

216.24K

Value

8.41M

Filed

Jun 30, 2026

20

MILLENNIUM MANAGEMENT LLC

CIK 1273087

Shares

206.94K

Value

8.05M

Filed

Jun 30, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.