ALPHA COGNITION INC (ACOG)
Institutional ownership reported to the SEC as of Q2 2026, across 7 quarters.
Institutions report 10,695,471 shares against 21,777,868 outstanding. Shares only - option lines are excluded, which is why this can be compared with the company at all. The count comes from the cover page of the company's own most recent report, so it is dated when that was filed rather than at quarter end.
Calls and puts are the parts of reported value carried in derivative lines rather than shares, and they point in opposite directions: a manager holding calls is positioned for the security, one holding puts against it - or hedging shares they already own, which is why index funds carry so many. Most sites add the two together and report one figure, which averages away the only interesting part.
Holders
| Filer | Value | Shares | Their book | Held | Change |
|---|---|---|---|---|---|
| Opaleye Management Inc. | $20.9M | 2,895,467 | 1.89% | 4q | +13.0%+$2.4M |
| Solas Capital Management, LLC | $13.9M | 1,924,617 | 7.45% | 7q | HELD |
| AWM Investment Company, Inc. | $12.1M | 1,672,168 | 1.05% | 6q | HELD |
| Cable Car Capital, LP | $10.0M | 1,382,339 | 0.21% | 7q | HELD |
| Ikarian Capital, LLC | $6.0M | 836,259 | 0.65% | 7q | -20.8%-$1.6M |
| SPHERA FUNDS MANAGEMENT LTD. | $3.9M | 545,816 | 0.51% | 7q | -3.8%-$157.4K |
| Alyeska Investment Group, L.P. | $2.6M | 365,000 | 0.01% | 3q | HELD |
| Aristides Capital LLC | $1.6M | 218,510 | 0.31% | 7q | HELD |
| CANTOR FITZGERALD, L. P. | $1.6M | 217,836 | 0.01% | 3q | +15.5%+$210.9K |
| CITADEL ADVISORS LLC | $1.4M | 195,092 | 0.00% | 3q | +117.8%+$761.7K |
| BOOTHBAY FUND MANAGEMENT, LLC | $1.4M | 189,148 | 0.02% | 7q | -26.2%-$485.5K |
| VILLERE ST DENIS J & CO LLC | $513.8K | 71,158 | 0.06% | 7q | HELD |
| TUDOR INVESTMENT CORP ET AL | $444.7K | 61,596 | 0.00% | 7q | HELD |
| ACT CAPITAL MANAGEMENT, LLC | $371.8K | 51,500 | 0.24% | 3q | HELD |
| BERKSHIRE ASSET MANAGEMENT LLC/PA | $143.1K | 19,824 | 0.01% | 5q | HELD |
| TWO SIGMA INVESTMENTS, LP | $136.0K | 18,832 | 0.00% | 4q | +18.5%+$21.3K |
| GEODE CAPITAL MANAGEMENT, LLC | $86.6K | 11,992 | 0.00% | 5q | HELD |
| RAYMOND JAMES FINANCIAL INC | $72.2K | 10,000 | 0.00% | 2q | HELD |
| NATIONAL BANK OF CANADA /FI/ | $37.7K | 5,292 | 0.00% | 7q | HELD |
| UBS Group AG | $10.5K | 1,456 | 0.00% | 5q | +232.4%+$7.3K |
| Allworth Financial LP | $5.4K | 750 | 0.00% | 3q | HELD |
| JONES FINANCIAL COMPANIES LLLP | $1.6K | 250 | 0.00% | 2q | +150.0% |
| MORGAN STANLEY | $1.4K | 200 | 0.00% | new | NEW |
| Steward Partners Investment Advisory, LLC | $1.4K | 200 | 0.00% | 7q | HELD |
| ROYAL BANK OF CANADA | $1.0K | 122 | 0.00% | 7q | -82.0%-$4.6K |
| HARBOUR INVESTMENTS, INC. | $336 | 47 | 0.00% | 2q | +1075.0% |
Five percent filings
Anyone crossing 5% of a company must say so within days - far sooner than the next quarterly holdings report. A 13D declares an intent to influence the company; a 13G is the passive version. See all activist filings →
| Filed | Form | Filer | % of class |
|---|---|---|---|
| 2026-09-23 | 13G | James E. Besser INDIVIDUALwith 4 co-filers | 7.4% |
| 2026-07-24 | 13G/A | Opaleye Management Inc.with 2 co-filers | 14.2% |
What the insiders did
Open market purchases and sales reported on Form 4 in the last 180 days. Grants, option exercises and shares surrendered to cover tax are left out: they are compensation rather than a decision to buy or sell. Where a broker filled one order in tranches the lines are summed, because it was one decision.
Ten percent owners and entities
Usually an institution that crossed a reporting threshold, or a company taking a strategic stake, rather than an individual with a view.
| Date | Insider | Role | Side | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-22 | Opaleye Management Inc. | 10% owner | Bought | 150,237 | $1.2M ×2 |
| 2026-06-26 | Opaleye Management Inc. | 10% owner | Bought | 152,336 | $975.2K |
| 2026-09-16 | Opaleye Management Inc. | 10% owner | Bought | 80,170 | $682.6K ×2 |
| 2026-05-29 | Opaleye Management Inc. | 10% owner | Bought | 70,577 | $416.4K |
| 2026-08-03 | Opaleye Management Inc. | 10% owner | Bought | 50,000 | $400.0K |
| 2026-07-23 | Opaleye Management Inc. | 10% owner | Bought | 49,849 | $388.6K |
Quarter by quarter
Coverage begins with the quarter ending 2018-12-31. Earlier filings exist only as occasional late amendments, too sparse to describe a market, so they are not shown.
| Quarter | Holders | Value | Shares | New | Added | Trimmed | Options |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 26 | $77.2M | 10,695,471 | 1 | 7 | 4 | 0.0% |
| Q1 2026 | 25 | $57.8M | 10,532,491 | 3 | 5 | 5 | 0.0% |
| Q4 2025 | 27 | $64.4M | 9,909,100 | 7 | 11 | 3 | 0.0% |
| Q3 2025 | 28 | $36.7M | 5,643,121 | 7 | 6 | 5 | 0.0% |
| Q2 2025 | 26 | $53.4M | 5,719,161 | 9 | 4 | 8 | 0.0% |
| Q1 2025 | 22 | $32.4M | 6,338,463 | 2 | 4 | 7 | 0.0% |
| Q4 2024 | 23 | $34.9M | 5,943,397 | 23 | 0 | 0 | 0.0% |