ETON PHARMACEUTICALS, INC.

PublicCIK: 1710340
ETONNASDAQ
Location

DEER PARK, IL

13F Filings

Institutional Holders

ETON PHARMACEUTICALS, INC.ETON— Latest position per institution from SEC 13F filings

15

Institutional holders

16.70M

Total shares held

539.13M

Estimated value

834.96K

Avg. position size

1

OPALEYE MANAGEMENT INC.

CIK 1595855

Shares

2.86M

Value

103.53M

Filed

Jun 30, 2026

2

ECOR1 CAPITAL, LLC

CIK 1587114

Shares

2.17M

Value

78.62M

Filed

Jun 30, 2026

3

BLACKROCK, INC.

CIK 2012383

Shares

1.90M

Value

68.63M

Filed

Jun 30, 2026

4

VANGUARD GROUP INC

CIK 102909

Shares

1.35M

Value

22.81M

Filed

Dec 31, 2025

5

NANTAHALA CAPITAL MANAGEMENT, LLC

CIK 1472322

Shares

1.18M

Value

42.57M

Filed

Jun 30, 2026

6

VANGUARD CAPITAL MANAGEMENT LLC

CIK 2100119

Shares

976.57K

Value

35.35M

Filed

Jun 30, 2026

7

MORGAN STANLEY

CIK 895421

Shares

767.97K

Value

27.80M

Filed

Jun 30, 2026

8

STATE STREET CORP

CIK 93751

Shares

701.79K

Value

25.40M

Filed

Jun 30, 2026

9

GEODE CAPITAL MANAGEMENT, LLC

CIK 1214717

Shares

652.30K

Value

23.62M

Filed

Jun 30, 2026

10

OBERWEIS ASSET MANAGEMENT INC/

CIK 937886

Shares

501.60K

Value

18.16M

Filed

Jun 30, 2026

11

NATIONAL PHILANTHROPIC TRUST

CIK 1785342

Shares

492.11K

Value

17.81M

Filed

Jun 30, 2026

12

ROUMELL ASSET MANAGEMENT, LLC

CIK 1331693

Shares

449.44K

Value

1.26M

Filed

Dec 31, 2022

13

WESTSIDE INVESTMENT MANAGEMENT, INC.

CIK 1538383

Shares

431.16K

Value

15.61M

Filed

Jun 30, 2026

14

PILLSBURY LAKE CAPITAL LLC

CIK 2111915

Shares

387.16K

Value

14.02M

Filed

Jun 30, 2026

15

NUVEEN, LLC

CIK 1871926

Shares

375.71K

Value

13.60M

Filed

Jun 30, 2026

16

BNP PARIBAS FINANCIAL MARKETS

CIK 1166588

Shares

322.47K

Value

11.67M

Filed

Jun 30, 2026

17

WOODLINE PARTNERS LP

CIK 1784547

Shares

310.88K

Value

11.25M

Filed

Jun 30, 2026

18

DIVISADERO STREET CAPITAL MANAGEMENT, LP

CIK 1901865

Shares

298K

Value

6.48M

Filed

Sep 30, 2025

19

THOMPSON SIEGEL & WALMSLEY LLC

CIK 1008322

Shares

297.23K

Value

10.76K

Filed

Jun 30, 2026

20

BLACKROCK FINANCE, INC.

CIK 1364742

Shares

282.39K

Value

929.06K

Filed

Jun 30, 2024

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