GRAPEVINE, TX
ALPHA COGNITION INC.ACOG— Latest position per institution from SEC 13F filings
15
Institutional holders
12.04M
Total shares held
86.68M
Estimated value
602.10K
Avg. position size
OPALEYE MANAGEMENT INC.
CIK 1595855
Shares
2.90M
Value
20.91M
Filed
Jun 30, 2026
SOLAS CAPITAL MANAGEMENT, LLC
CIK 1604867
Shares
1.92M
Value
13.90M
Filed
Jun 30, 2026
AWM INVESTMENT COMPANY, INC.
CIK 1535264
Shares
1.67M
Value
12.07M
Filed
Jun 30, 2026
CABLE CAR CAPITAL, LP
CIK 1699575
Shares
1.38M
Value
9.98M
Filed
Jun 30, 2026
IKARIAN CAPITAL, LLC
CIK 1778253
Shares
836.26K
Value
6.04M
Filed
Jun 30, 2026
SPHERA FUNDS MANAGEMENT LTD.
CIK 1496201
Shares
545.82K
Value
3.94M
Filed
Jun 30, 2026
SIO CAPITAL MANAGEMENT, LLC
CIK 1482416
Shares
434.70K
Value
2.56M
Filed
Dec 31, 2024
ESSEX INVESTMENT MANAGEMENT CO LLC
CIK 201772
Shares
422.86K
Value
3.81M
Filed
Sep 30, 2026
ALYESKA INVESTMENT GROUP, L.P.
CIK 1453072
Shares
365K
Value
2.64M
Filed
Jun 30, 2026
ARISTIDES CAPITAL LLC
CIK 1595521
Shares
218.51K
Value
1.58M
Filed
Jun 30, 2026
ADAR1 CAPITAL MANAGEMENT, LLC
CIK 1940272
Shares
204.35K
Value
1.20M
Filed
Dec 31, 2024
BOOTHBAY FUND MANAGEMENT, LLC
CIK 1549230
Shares
189.15K
Value
1.37M
Filed
Jun 30, 2026
ALTIUM CAPITAL MANAGEMENT LLC
CIK 1746382
Shares
177.42K
Value
897.73K
Filed
Mar 31, 2025
BLEICHROEDER LP
CIK 1781002
Shares
138.92K
Value
1.30M
Filed
Jun 30, 2025
CORSAIR CAPITAL MANAGEMENT, L.P.
CIK 1276470
Shares
134.90K
Value
878.19K
Filed
Sep 30, 2025
MANATUCK HILL PARTNERS, LLC
CIK 1467902
Shares
117K
Value
1.09M
Filed
Jun 30, 2025
CANTOR FITZGERALD, L. P.
CIK 1024896
Shares
108.92K
Value
786.39K
Filed
Jun 30, 2026
ROSALIND ADVISORS, INC.
CIK 1622627
Shares
104.84K
Value
530.47K
Filed
Mar 31, 2025
CITADEL ADVISORS LLC
CIK 1423053
Shares
97.55K
Value
704.28K
Filed
Jun 30, 2026
VILLERE ST DENIS J & CO LLC
CIK 1113629
Shares
71.16K
Value
513.76K
Filed
Jun 30, 2026
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | OPALEYE MANAGEMENT INC. | 1595855 | 2.90M | 20.91M | Jun 30, 2026 |
| 2 | SOLAS CAPITAL MANAGEMENT, LLC | 1604867 | 1.92M | 13.90M | Jun 30, 2026 |
| 3 | AWM INVESTMENT COMPANY, INC. | 1535264 | 1.67M | 12.07M | Jun 30, 2026 |
| 4 | CABLE CAR CAPITAL, LP | 1699575 | 1.38M | 9.98M | Jun 30, 2026 |
| 5 | IKARIAN CAPITAL, LLC | 1778253 | 836.26K | 6.04M | Jun 30, 2026 |
| 6 | SPHERA FUNDS MANAGEMENT LTD. | 1496201 | 545.82K | 3.94M | Jun 30, 2026 |
| 7 | SIO CAPITAL MANAGEMENT, LLC | 1482416 | 434.70K | 2.56M | Dec 31, 2024 |
| 8 | ESSEX INVESTMENT MANAGEMENT CO LLC | 201772 | 422.86K | 3.81M | Sep 30, 2026 |
| 9 | ALYESKA INVESTMENT GROUP, L.P. | 1453072 | 365K | 2.64M | Jun 30, 2026 |
| 10 | ARISTIDES CAPITAL LLC | 1595521 | 218.51K | 1.58M | Jun 30, 2026 |
| 11 | ADAR1 CAPITAL MANAGEMENT, LLC | 1940272 | 204.35K | 1.20M | Dec 31, 2024 |
| 12 | BOOTHBAY FUND MANAGEMENT, LLC | 1549230 | 189.15K | 1.37M | Jun 30, 2026 |
| 13 | ALTIUM CAPITAL MANAGEMENT LLC | 1746382 | 177.42K | 897.73K | Mar 31, 2025 |
| 14 | BLEICHROEDER LP | 1781002 | 138.92K | 1.30M | Jun 30, 2025 |
| 15 | CORSAIR CAPITAL MANAGEMENT, L.P. | 1276470 | 134.90K | 878.19K | Sep 30, 2025 |
| 16 | MANATUCK HILL PARTNERS, LLC | 1467902 | 117K | 1.09M | Jun 30, 2025 |
| 17 | CANTOR FITZGERALD, L. P. | 1024896 | 108.92K | 786.39K | Jun 30, 2026 |
| 18 | ROSALIND ADVISORS, INC. | 1622627 | 104.84K | 530.47K | Mar 31, 2025 |
| 19 | CITADEL ADVISORS LLC | 1423053 | 97.55K | 704.28K | Jun 30, 2026 |
| 20 | VILLERE ST DENIS J & CO LLC | 1113629 | 71.16K | 513.76K | Jun 30, 2026 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.