CTSO Cytosorbents Corp: institutional ownership and insider trading
48 funds reported holding $7.05M of Cytosorbents Corp in their latest 13F filings; in Q2 2026 funds net sold $120K, with 6 new positions and 6 funds selling out; over the last 12 months insiders bought $269K and sold $0 on the open market.
Famous investors holding CTSO
- Renaissance Technologies (Renaissance Technologies): $37.4K, 0.0% of the portfolio
- Ken Griffin (Citadel Advisors): $5.39K, 0.0% of the portfolio
Largest institutional holders of CTSO
- AVENIR CORP — $1.94M
- VANGUARD GROUP INC — $1.41M
- Neuberger Berman Group LLC — $741K
- VANGUARD CAPITAL MANAGEMENT LLC — $716K
- CM Management, LLC — $552K
- BlackRock, Inc. (BLK) — $235K
- GEODE CAPITAL MANAGEMENT, LLC — $225K
- Sargent Investment Group, LLC — $208K
- Pathstone Holdings, LLC — $187K
- VANGUARD FIDUCIARY TRUST CO — $118K
Recent CTSO insider trades
- Sep 15, 2026: Sobel Alan D. bought 2,500 shares ($15.3K)
- Sep 15, 2026: Chan Phillip P. bought 3,774 shares ($22.6K)
- Sep 14, 2026: Capponi Vincent bought 2,073 shares ($12.5K)
- Sep 4, 2026: Chan Phillip P. bought 200,000 shares ($70.0K)
5%+ owners
- AVENIR CORP: 8.3% (Schedule 13G/A, filed Feb 13, 2026)
- Thomas A. Satterfield, Jr.: 6.6% (Schedule 13G, filed Jan 17, 2025)
- Avenue Capital Management II, L.P.: 5.7% (Schedule 13G, filed May 28, 2025)