ACOG Alpha Cognition Inc.
Alpha Cognition Inc. (ACOG) Institutional Ownership
What the institutions did with ACOG last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| Opaleye Management Inc. | 2.9M | 27.3% |
| Solas Capital Management, LLC | 1.9M | 18.2% |
| AWM Investment Company, Inc. | 1.7M | 15.8% |
| Cable Car Capital, LP | 1.4M | 13.0% |
| Ikarian Capital, LLC | 836.3K | 7.9% |
| SPHERA FUNDS MANAGEMENT LTD. | 545.8K | 5.2% |
| Alyeska Investment Group, L.P. | 365.0K | 3.4% |
| Aristides Capital LLC | 218.5K | 2.1% |
| CANTOR FITZGERALD, L. P. | 217.8K | 2.1% |
| BOOTHBAY FUND MANAGEMENT, LLC | 189.1K | 1.8% |
| CITADEL ADVISORS LLC | 97.5K | 0.9% |
| VILLERE ST DENIS J & CO LLC | 71.2K | 0.7% |
| TUDOR INVESTMENT CORP ET AL | 61.6K | 0.6% |
| ACT CAPITAL MANAGEMENT, LLC | 51.5K | 0.5% |
| BERKSHIRE ASSET MANAGEMENT LLC/PA | 19.8K | 0.2% |
| TWO SIGMA INVESTMENTS, LP | 18.8K | 0.2% |
| GEODE CAPITAL MANAGEMENT, LLC | 12.0K | 0.1% |
| RAYMOND JAMES FINANCIAL INC | 10.0K | 0.1% |
| NATIONAL BANK OF CANADA /FI/ | 5.3K | 0.0% |
| UBS Group AG | 1.5K | 0.0% |
| Allworth Financial LP | 750 | 0.0% |
| JONES FINANCIAL COMPANIES LLLP | 250 | 0.0% |
| MORGAN STANLEY | 200 | 0.0% |
| Steward Partners Investment Advisory, LLC | 200 | 0.0% |
| ROYAL BANK OF CANADA | 122 | 0.0% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Opaleye Management Inc. | Increased | 2.6M | 2.9M | +333.5K |
| Ikarian Capital, LLC | Reduced | 1.1M | 836.3K | -220.0K |
| BOOTHBAY FUND MANAGEMENT, LLC | Reduced | 256.4K | 189.1K | -67.2K |
| CANTOR FITZGERALD, L. P. | Increased | 188.6K | 217.8K | +29.2K |
| SPHERA FUNDS MANAGEMENT LTD. | Reduced | 567.6K | 545.8K | -21.8K |
| CITADEL ADVISORS LLC | Increased | 89.6K | 97.5K | +8.0K |
| TWO SIGMA INVESTMENTS, LP | Increased | 15.9K | 18.8K | +2.9K |
| UBS Group AG | Increased | 438 | 1.5K | +1.0K |
| ROYAL BANK OF CANADA | Reduced | 679 | 122 | -557 |
| MORGAN STANLEY | New | 0 | 200 | +200 |
| JONES FINANCIAL COMPANIES LLLP | Increased | 100 | 250 | +150 |
| HARBOUR INVESTMENTS, INC. | Increased | 4 | 47 | +43 |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.