VANGUARD GROUP INC 13D and 13G filings for Alector, Inc.:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Shares have been adjusted for stock splits.
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2026-03-26 3:24 pm Sale | 2026-03-13 | 13G | ALECTOR INC ALEC | VANGUARD GROUP INC | 0 0.000% | -6,908,054![]() (Position Closed) | Filing |
| 2026-01-30 1:26 pm Purchase | 2025-12-31 | 13G | ALECTOR INC ALEC | VANGUARD GROUP INC | 6,908,054 6.320% | 2,521,513![]() (+57.48%) | Filing |
| 2024-02-13 4:59 pm Sale | 2023-12-29 | 13G | ALECTOR INC ALEC | VANGUARD GROUP INC | 4,386,541 5.210% | -1,978,070![]() (-31.08%) | Filing |
| 2023-02-09 10:54 am Purchase | 2022-12-30 | 13G | ALECTOR INC ALEC | VANGUARD GROUP INC | 6,364,611 7.700% | 824,371![]() (+14.88%) | Filing |
| 2022-02-09 3:16 pm Purchase | 2021-12-31 | 13G | ALECTOR INC ALEC | VANGUARD GROUP INC | 5,540,240 6.820% | 537,381![]() (+10.74%) | Filing |

