ETON Eton Pharmaceuticals, Inc.: institutional ownership and insider trading
179 funds reported holding $761M of Eton Pharmaceuticals, Inc. in their latest 13F filings; in Q2 2026 funds net bought $78.1M, with 54 new positions and 5 funds selling out; over the last 12 months insiders bought $0 and sold $25.4M on the open market.
Famous investors holding ETON
- D. E. Shaw (D. E. Shaw & Co.): $6.82M, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $4.21M, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $3.09M, 0.0% of the portfolio
- Renaissance Technologies (Renaissance Technologies): $1.89M, 0.0% of the portfolio
Largest institutional holders of ETON
- Opaleye Management Inc. — $104M
- EcoR1 Capital, LLC — $78.6M
- BlackRock, Inc. (BLK) — $68.6M
- Nantahala Capital Management, LLC — $42.6M
- VANGUARD CAPITAL MANAGEMENT LLC — $35.4M
- MORGAN STANLEY (MS, MS-PA, MS-PE, MS-PF, MS-PI, MS-PK, MS-PL, MS-PO, MS-PP, MS-PQ) — $27.8M
- STATE STREET CORP (STT, STT-PG) — $25.4M
- GEODE CAPITAL MANAGEMENT, LLC — $23.6M
- VANGUARD GROUP INC — $22.8M
- OBERWEIS ASSET MANAGEMENT INC/ — $18.2M
Recent ETON insider trades
- Oct 6, 2026: Krempa David sold 4,166 shares ($229K)
- Aug 28, 2026: Maier Paul V sold 50,000 shares ($2.95M)
- Aug 24, 2026: Krempa David sold 25,000 shares ($1.63M)
- Aug 20, 2026: Brynjelsen Sean sold 100,000 shares ($6.09M)
5%+ owners
- BlackRock, Inc.: 6.9% (Schedule 13G/A, filed Jul 28, 2026)