ACOG Alpha Cognition Inc.: institutional ownership and insider trading
27 funds reported holding $79.5M of Alpha Cognition Inc. in their latest 13F filings; in Q2 2026 funds net sold $314K, with 1 new positions and 0 funds selling out; over the last 12 months insiders bought $8.08M and sold $0 on the open market.
Famous investors holding ACOG
- Ken Griffin (Citadel Advisors): $704K, 0.0% of the portfolio
- Two Sigma (Two Sigma Investments): $136K, 0.0% of the portfolio
Largest institutional holders of ACOG
- Opaleye Management Inc. — $20.9M
- Solas Capital Management, LLC — $13.9M
- AWM Investment Company, Inc. — $12.1M
- Cable Car Capital, LP — $9.98M
- Ikarian Capital, LLC — $6.04M
- SPHERA FUNDS MANAGEMENT LTD. — $3.94M
- ESSEX INVESTMENT MANAGEMENT CO LLC — $3.81M
- Alyeska Investment Group, L.P. — $2.64M
- Aristides Capital LLC — $1.58M
- BOOTHBAY FUND MANAGEMENT, LLC — $1.37M
Recent ACOG insider trades
- Oct 16, 2026: Opaleye Management Inc. bought 36,940 shares ($309K)
- Oct 1, 2026: Opaleye Management Inc. bought 19,050 shares ($166K)
- Sep 25, 2026: Opaleye Management Inc. bought 31,763 shares ($271K)
- Sep 16, 2026: Opaleye Management Inc. bought 123,918 shares ($1.06M)
5%+ owners
- Opaleye Management Inc.: 14.2% (Schedule 13G/A, filed Jul 24, 2026)
- James E. Besser: 7.4% (Schedule 13G, filed Sep 23, 2026)