38% buyers of institutions opening or closing positions this quarter
2 more exits than new buyers, ownership fell 6.71 percentage points vs the prior quarter, and 2 well-known fund managers in the top 25.
38% buyers of institutions opening or closing positions this quarter
59.0% institutional ownership
Solas Capital Management, portfolio allocation
Institutional ownership vs Financial - Conglomerates peers
No Form 4 insider transactions on file
Latest positioning in ACOG across 13F flow, ownership shift, marquee holders, and holder-count growth.
Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in ACOG held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | Opaleye Management Inc. | 2.6M | $14.1M | +23.7% | 16.495% | 1.85% |
| 2 | Solas Capital Management, LLC | 1.9M | $10.6M | -2.2% | 12.392% | 6.08% |
| 3 | AWM Investment Company, Inc. | 1.7M | $9.2M | 0.0% | 10.766% | 1.02% |
| 4 | Cable Car Capital, LP | 1.4M | $7.6M | +30.4% | 8.900% | 2.62% |
| 5 | Ikarian Capital, LLC | 1.1M | $5.8M | 0.0% | 6.801% | 0.47% |
| 6 | SPHERA FUNDS MANAGEMENT LTD. | 568K | $3.1M | 0.0% | 3.655% | 0.49% |
| 7 | Alyeska Investment Group, L.P. | 365K | $2.0M | 0.0% | 2.350% | 0.01% |
| 8 | BOOTHBAY FUND MANAGEMENT, LLC | 256K | $1.4M | 0.0% | 1.651% | 0.02% |
| 9 | Aristides Capital LLC | 219K | $1.2M | +1.4% | 1.407% | 0.26% |
| 10 | CANTOR FITZGERALD, L. P. | 189K | $1.0M | +15.4% | 1.214% | 0.02% |
| 11 | CITADEL ADVISORS LLC | 90K | $492K | -24.3% | 0.577% | 0.00% |
| 12 | VILLERE ST DENIS J & CO LLC | 71K | $391K | -3.7% | 0.458% | 0.04% |
| 13 | TUDOR INVESTMENT CORP ET AL | 62K | $338K | 0.0% | 0.397% | 0.00% |
| 14 | ACT Capital Management, LLC | 52K | $283K | 0.0% | 0.332% | 0.22% |
| 15 | TWO SIGMA INVESTMENTS, LP | 16K | $87K | -72.4% | 0.102% | 0.00% |
| 16 | GEODE CAPITAL MANAGEMENT, LLC | 12K | $66K | 0.0% | 0.077% | 0.00% |
| 17 | RAYMOND JAMES FINANCIAL INC | 10K | $55K | — | 0.064% | 0.00% |
| 18 | NATIONAL BANK OF CANADA /FI/ | 5K | $28K | 0.0% | 0.034% | 0.00% |
| 19 | Allworth Financial LP | 750 | $4K | 0.0% | 0.005% | 0.00% |
| 20 | ROYAL BANK OF CANADA | 679 | $4K | +456.6% | 0.004% | 0.00% |
| 21 | UBS Group AG | 438 | $2K | -52.8% | 0.003% | 0.00% |
| 22 | Steward Partners Investment Advisory, LLC | 200 | $1K | 0.0% | 0.001% | 0.00% |
| 23 | JONES FINANCIAL COMPANIES LLLP | 100 | $508 | — | 0.001% | 0.00% |
| 24 | HARBOUR INVESTMENTS, INC. | 4 | $25 | — | 0.000% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in ACOG — a direct measure of their conviction.
Filings activity in ACOG during Q1 2026, grouped by how each filer changed its position.
6 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 24 | 7.7% | 58.98% | 6.71 pp | $58M | 10% |
| Q4 2025 | 26 | 7.1% | 65.69% | +28.15 pp | $64M | +75% |
| Q3 2025 | 28 | +3.7% | 37.54% | 16.99 pp | $37M | 31% |
| Q2 2025 | 27 | +17% | 54.53% | +21.38 pp | $53M | +64% |
| Q1 2025 | 23 | 4.2% | 33.15% | 2.51 pp | $32M | 7.0% |
| Q4 2024 | 24 | — | 35.66% | — | $35M | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
No recent Form 4 insider transactions on file for ACOG.
Quick answers to the most common questions about buying ACOG stock.
Based on Q1 2026 13F filings, institutional ownership of Alpha Cognition Inc. Common Stock stands at 59.0%, held across 24 reporting institutions.
Opaleye Management Inc. is the largest reported institutional holder of ACOG, with approximately 2,561,950 shares worth $0.01B as of Q1 2026.
Yes — 2 widely-followed marquee investors appear among the top 25 institutional holders of ACOG, including CITADEL ADVISORS LLC, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for ACOG is 37 out of 100 (Bearish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
3 institutions opened new positions in ACOG during Q1 2026, while 5 fully exited. 3 added to existing positions and 18 trimmed.
ACOG institutional ownership fell by 6.71 percentage points quarter-over-quarter, with a net change of -2 holders.
The top 10 institutions account for 97.0% of all reported 13F value in ACOG, and the top 25 account for 100.0%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.