CUSIP 014442107COMALECQ4 2025
47 filings · latest Feb 17, 2026
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Tcg Crossover Management, LLC | 10.00M | $15.60M |
| 2 | Blackrock, Inc. | 7.15M | $11.15M |
| 3 | Vanguard Group Inc | 6.91M | $10.78M |
| 4 | Foresite Capital Management IV, LLC | 3.89M | $6.06M |
| 5 | Merck & Co., Inc. | 3.55M | $5.53M |
| 6 | 683 Capital Management, LLC | 3.35M | $5.23M |
| 7 | Balyasny Asset Management L.P. | 3.27M | $5.09M |
| 8 | D. E. Shaw & Co., Inc. | 2.37M | $3.69M |
| 9 |
| 4 | Jan 21, 2026 | Blackrock, Inc. | 13G/A | 4.7% | 5.18M | SEC |
| 5 | Nov 14, 2025 | Rtw Investments, LP | 13G | 6.9% | 6.99M | SEC |
| 6 | Nov 14, 2025 | Tcg Crossover Gp II, LLC | 13G | 9.2% | 10.00M | SEC |
| 7 | Nov 13, 2025 | Polaris Venture Partners Vi, L.P. | 13G/A | 11.0% | 7.10M | SEC |
| 8 | Nov 7, 2025 | Fmr LLC | 13G/A | 3.6% | 3.60M | SEC |
| 9 | Oct 17, 2025 | Blackrock, Inc. | 13G/A | 5.1% | 5.20M | SEC |
| 10 | Aug 14, 2025 | Ra Capital Management, L.P. | 13G/A | — | 913.30M | SEC |
See the full Schedule 13D/13G history for Alector Inc.
Unlock full history| Fmr LLC |
| 2.23M |
| $3.48M |
| 10 | Jacobs Levy Equity Management, Inc | 2.17M | $3.39M |