CLEARSIGN TECHNOLOGIES CORP

PublicCIK: 1434524
CLIRNASDAQ
Location

TULSA, OK

13F Filings

Institutional Holders

CLEARSIGN TECHNOLOGIES CORPCLIR— Latest position per institution from SEC 13F filings

15

Institutional holders

443.44K

Total shares held

1.48M

Estimated value

22.17K

Avg. position size

1

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

105.43K

Value

386.92K

Filed

Jun 30, 2026

2

SIMON QUICK ADVISORS, LLC

CIK 1692038

Shares

60.31K

Value

221.35K

Filed

Jun 30, 2026

3

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

51.46K

Value

188.89K

Filed

Jun 30, 2026

4

CAMBRIDGE INVESTMENT RESEARCH ADVISORS, INC.

CIK 1419186

Shares

44.30K

Value

163.00

Filed

Jun 30, 2026

5

BEACON POINTE ADVISORS, LLC

CIK 1744317

Shares

27.17K

Value

99.72K

Filed

Jun 30, 2026

6

VANGUARD FIDUCIARY TRUST CO

CIK 933478

Shares

23.46K

Value

86.10K

Filed

Jun 30, 2026

7

HIGHTOWER ADVISORS, LLC

CIK 1462245

Shares

22.66K

Value

83.17K

Filed

Jun 30, 2026

8

CITADEL ADVISORS LLC

CIK 1423053

Shares

20.57K

Value

75.47K

Filed

Jun 30, 2026

9

BLACKROCK, INC.

CIK 2012383

Shares

19.50K

Value

71.58K

Filed

Jun 30, 2026

10

CREATIVE PLANNING

CIK 1540235

Shares

12.36K

Value

53.87K

Filed

Mar 31, 2026

11

DDD PARTNERS, LLC

CIK 1729673

Shares

12K

Value

44.04K

Filed

Jun 30, 2026

12

SUSQUEHANNA INTERNATIONAL GROUP, LLP

CIK 1446194

Shares

10.50K

Value

45.78K

Filed

Mar 31, 2026

13

NORTHERN TRUST CORP

CIK 73124

Shares

10.08K

Value

36.99K

Filed

Jun 30, 2026

14

ROCKEFELLER CAPITAL MANAGEMENT L.P.

CIK 1739439

Shares

8.12K

Value

29.80K

Filed

Jun 30, 2026

15

NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO

CIK 1141802

Shares

7.17K

Value

26.32K

Filed

Jun 30, 2026

16

WELLS FARGO & COMPANY/MN

CIK 72971

Shares

2.13K

Value

7.80K

Filed

Jun 30, 2026

17

GLEASON GROUP, INC.

CIK 1822632

Shares

1.80K

Value

6.61K

Filed

Jun 30, 2026

18

CENTERPOINT ADVISORS, LLC

CIK 1733788

Shares

1.56K

Value

6.00

Filed

Jun 30, 2026

19

TOWER RESEARCH CAPITAL LLC (TRC)

CIK 1533421

Shares

1.52K

Value

5.57K

Filed

Jun 30, 2026

20

VANGUARD GLOBAL ADVISERS, LLC

CIK 1811242

Shares

1.35K

Value

4.96K

Filed

Jun 30, 2026

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