Alpha Cognition Inc. - ACOG
Ownership (Schedule 13D / 13G) · latest 50 filings
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| Filed | Form | Reporting person | Percent | Shares | SEC |
|---|---|---|---|---|---|
| Jul 24, 2026 | SCHEDULE 13G/A | Opaleye Management Inc. | 14.22% | 3,095,193 | View |
| Jul 24, 2026 | SCHEDULE 13G/A | Opaleye, L.P. | 13.76% | 2,995,193 | View |
| Jul 24, 2026 | SCHEDULE 13G/A | James Silverman | 14.22% | 3,095,193 | View |
| Jun 29, 2026 | SCHEDULE 13G/A | Opaleye Management Inc. | 13.3% | 2,895,107 | View |
| Jun 29, 2026 | SCHEDULE 13G/A | Opaleye, L.P. | 12.88% | 2,805,107 | View |
| Jun 29, 2026 | SCHEDULE 13G/A | James Silverman | 13.3% | 2,895,107 | View |
| May 22, 2026 | SCHEDULE 13G/A | Opaleye Management Inc. | 12.03% | 2,620,369 | View |
| May 22, 2026 | SCHEDULE 13G/A | Opaleye, L.P. | 11.62% | 2,530,369 | View |
| May 22, 2026 | SCHEDULE 13G/A | James Silverman | 12.03% | 2,620,369 | View |
| May 12, 2026 | SCHEDULE 13G/A | Manchester Management Company, LLC | 4.2% | 919,935 | View |
| May 12, 2026 | SCHEDULE 13G/A | Manchester Management PR, LLC | 4.2% | 919,935 | View |
| May 12, 2026 | SCHEDULE 13G/A | James E. Besser | 4.9% | 1,076,935 | View |
| May 12, 2026 | SCHEDULE 13G/A | Morgan C. Frank | 4.0% | 888,935 | View |
| May 11, 2026 | SCHEDULE 13G/A | Opaleye Management Inc. | 11.77% | 2,561,950 | View |
| May 11, 2026 | SCHEDULE 13G/A | Opaleye, L.P. | 11.35% | 2,471,950 | View |
| May 11, 2026 | SCHEDULE 13G/A | James Silverman | 11.77% | 2,561,950 | View |
Percent = "% of class represented by amount beneficially owned" for this reporting person in the filed 13D/13G.
Shares = reported beneficial ownership amount for the same row (not portfolio shares from 13F).
Amendments (/A) can repeat the same holder over time, so rows should not be summed.
Extraction is best-effort from filing text and can be missing or noisy; verify exact figures via the SEC link in each row.