| SC 13G/A | 2024-02-13 | VANGUARD GROUP INC | Alector, Inc. | 4,386,541 | 5.2% | EDGAR |
| SC 13G | 2024-02-12 | MORGAN STANLEY | Alector, Inc. | 4,605,044 | 5.5% | EDGAR |
| SC 13G/A | 2024-02-09 | FMR LLC | Alector, Inc. | 12,620,404 | 15.0% | EDGAR |
| SC 13G/A | 2024-02-09 | Polaris Venture Partners VI, L.P. | Alector, Inc. | 498,468 | 0.5% | EDGAR |
| SC 13G | 2024-02-08 | Rosenthal Arnon | Alector, Inc. | 7,285,773 | - | EDGAR |
| SC 13G/A | 2024-01-24 | BlackRock Inc. | Alector, Inc. | 8,068,553 | 9.6% | EDGAR |
| SC 13G/A | 2023-10-13 | FMR LLC | Alector, Inc. | 12,172,045 | 14.5% | EDGAR |
| SC 13G/A | 2023-02-10 | EcoR1 Capital, LLC | Alector, Inc. | 4,056,548 | 4.9% | EDGAR |
| SC 13G/A | 2023-02-10 | Rosenthal Arnon | Alector, Inc. | 6,884,362 | - | EDGAR |
| SC 13G/A | 2023-02-09 | FMR LLC | Alector, Inc. | 4,711,940 | 5.7% | EDGAR |
| SC 13G/A | 2023-02-09 | VANGUARD GROUP INC | Alector, Inc. | 6,364,611 | 7.7% | EDGAR |
| SC 13G/A | 2023-02-09 | FEDERATED HERMES, INC. | Alector, Inc. | 2,824,387 | 3.4% | EDGAR |
| SC 13G/A | 2023-02-07 | Polaris Venture Partners VI, L.P. | Alector, Inc. | 498,468 | 0.6% | EDGAR |
| SC 13G/A | 2023-02-01 | FEDERATED HERMES, INC. | Alector, Inc. | 4,571,660 | 5.5% | EDGAR |
| SC 13G/A | 2023-01-25 | BlackRock Inc. | Alector, Inc. | 7,368,620 | 8.9% | EDGAR |
| SC 13G/A | 2022-02-14 | EcoR1 Capital, LLC | Alector, Inc. | 4,994,970 | 6.1% | EDGAR |
| SC 13G/A | 2022-02-14 | FEDERATED HERMES, INC. | Alector, Inc. | 5,280,847 | 6.5% | EDGAR |
| SC 13G | 2022-02-14 | Rosenthal Arnon | Alector, Inc. | 6,560,509 | 8.0% | EDGAR |
| SC 13G/A | 2022-02-11 | Polaris Venture Partners VI, L.P. | Alector, Inc. | 498,468 | 0.6% | EDGAR |
| SC 13G/A | 2022-02-09 | VANGUARD GROUP INC | Alector, Inc. | 5,540,240 | 6.8% | EDGAR |