Alpha CognitionACOG
13F holders, Q4 2025 (December 31)At the end of Q4 2025, 27 institutions reported holding Alpha Cognition Inc. (ACOG) in their 13F filings, down 1 from Q3 2025. 6 opened new positions and 8 sold out. The largest holders were Opaleye Management Inc. ($13.5M), Solas Capital Management, LLC ($12.8M) and AWM Investment Company, Inc. ($10.9M). 2 famous investors held it, including Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Alpha Cognition Inc.
- CUSIP
- 02074J501
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 6 | $4.5M |
| Exits | 8 | $1.7M |
All 13F filers, Q3 2025 → Q4 2025: 4,537,773 shares bought and 323,294 shares sold, net +4,214,479 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 27 holders
| Opaleye Management Inc. | 1.78% | Add +1698.5% | 2,070,784 | $13.5M |
| Solas Capital Management, LLC | 7.26% | Add +53.5% | 1,968,052 | $12.8M |
| AWM Investment Company, Inc. | 1.05% | Add +52.6% | 1,672,168 | $10.9M |
| Cable Car Capital, LP | 0.44% | Add +22.0% | 1,060,212 | $6.9M |
| Ikarian Capital, LLC | 0.89% | Add +11.6% | 1,056,259 | $6.9M |
| Sphera Funds Management LTD. | 0.77% | Add +67.6% | 567,616 | $3.7M |
| Alyeska Investment Group, L.P. | 0.01% | New | 365,000 | $2.4M |
| Boothbay Fund Management, LLC | 0.04% | Reduce -12.2% | 256,393 | $1.7M |
| Aristides Capital LLC | 0.49% | Add +30.2% | 215,458 | $1.4M |
| Cantor Fitzgerald, L. P. | 0.03% | New | 163,431 | $1.1M |
| Citadel Advisors | 0.00% | New | 118,421 | $770K |
| Villere St Denis J & Co. LLC | 0.05% | Add +13.2% | 73,875 | $480K |
| Tudor Investment Corporation | 0.00% | No change | 61,596 | $400K |
| Two Sigma Investments, LP | 0.00% | Add +153.3% | 57,572 | $374K |
| Marshall Wace, LLP | 0.00% | Reduce -26.3% | 53,203 | $346K |
| Act Capital Management, LLC | 0.27% | — | 51,500 | $335K |
| Susquehanna International Group, LLP | 0.00% | New | 34,706 | $226K |
| Berkshire Asset Management LLC | 0.01% | Add +11.2% | 19,824 | $129K |
| Quadrature Capital Ltd | 0.00% | Reduce -8.4% | 12,501 | $81K |
| Geode Capital Management, LLC | 0.00% | No change | 11,992 | $78K |
| Green Alpha Advisors, LLC | 0.07% | New | 11,126 | $72K |
| National Bank of Canada | 0.00% | No change | 5,292 | $34K |
| UBS Group AG | 0.00% | Add +557.5% | 927 | $6K |
| Allworth Financial LP | 0.00% | New | 750 | $5K |
| Steward Partners Investment Advisory, LLC | 0.00% | No change | 200 | $1K |
| Royal Bank of Canada | 0.00% | No change | 122 | $1K |
| PNC Financial Services Group, Inc. | 0.00% | No change | 120 | $780 |
"% of holder's portfolio" is ACOG's weight in each manager's 13F, not the share of Alpha Cognition Inc. the manager owns.