Real time Form 13D and 13G transaction reports:
- 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.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares have beem adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Transaction Date | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | View |
| 2025-11-14 4:18 pm Purchase | 2025-10-22 | 13G | Alector, Inc. ALEC | TCG Crossover GP II, LLC | 10,000,000 9.200% | 10,000,000 (New Position) | Filing History |
| 2025-11-14 08:18 am Purchase | 2025-09-30 | 13G | Alector, Inc. ALEC | RTW Investments, LP | 6,990,806 6.900% | 6,990,806 (New Position) | Filing History |
| 2025-11-13 4:41 pm Sale | 2025-09-30 | 13G | Alector, Inc. ALEC | Polaris Venture Partners VI, L.P. | 7,095,251 6.500% | -2,882,626 (-28.89%) | Filing History |
| 2025-11-07 11:13 am Sale | 2025-10-31 | 13G | Alector, Inc. ALEC | FMR LLC | 3,599,820 3.600% | -9,020,584 (-71.48%) | Filing History |
| 2025-10-17 6:40 pm Sale | 2025-09-30 | 13G | Alector, Inc. ALEC | BlackRock Inc. BLK | 5,201,092 5.100% | -915,472 (-14.97%) | Filing History |
| 2025-08-14 5:54 pm Sale | 2025-06-30 | 13G | Alector, Inc. ALEC | RA Capital Management, L.P. | 0 0.000% | -9,695,228 (Position Closed) | Filing History |
| 2025-04-17 09:35 am Sale | 2025-03-31 | 13G | Alector, Inc. ALEC | BlackRock Inc. BLK | 6,116,564 6.200% | -1,951,989 (-24.19%) | Filing History |
| 2024-12-06 5:30 pm Purchase | 2024-11-29 | 13G | Alector, Inc. ALEC | RA Capital Management, L.P. | 9,695,228 9.900% | 9,695,228 (New Position) | Filing History |
| 2024-11-12 7:21 pm Sale | 2024-09-30 | 13G | Alector, Inc. ALEC | Polaris Venture Partners VI, L.P. | 9,977,877 10.200% | -997,857 (-9.09%) | Filing History |
| 2024-11-07 12:41 pm Sale | 2024-09-30 | 13G | Alector, Inc. ALEC | MORGAN STANLEY MS | 4,331,322 4.500% | -273,722 (-5.94%) | Filing History |
| 2024-02-13 4:59 pm Sale | 2023-12-29 | 13G | Alector, Inc. ALEC | The Vanguard Group | 4,386,541 5.210% | -1,978,070 (-31.08%) | Filing History |
| 2024-02-12 10:03 am Purchase | 2023-12-31 | 13G | Alector, Inc. ALEC | MORGAN STANLEY MS | 4,605,044 5.500% | 4,605,044 (New Position) | Filing History |
| 2024-02-09 4:48 pm Sale | 2023-12-31 | 13G | Alector, Inc. ALEC | Polaris Venture Partners VI, L.P. | 10,975,734 11.500% | -968,536 (-8.11%) | Filing History |
| 2024-02-09 08:35 am Purchase | 2024-02-08 | 13G | Alector, Inc. ALEC | FMR LLC | 12,620,404 14.999% | 448,359 (+3.68%) | Filing History |
| 2024-02-08 6:59 pm Purchase | 2023-12-31 | 13G | Alector, Inc. ALEC | Rosenthal Arnon | 7,285,773 8.500% | 401,411 (+5.83%) | Filing History |
| 2024-01-24 2:27 pm Purchase | 2023-12-31 | 13G | Alector, Inc. ALEC | BlackRock Inc. BLK | 8,068,553 9.600% | 699,933 (+9.50%) | Filing History |
| 2023-10-13 4:01 pm Purchase | 2023-10-09 | 13G | Alector, Inc. ALEC | FMR LLC | 12,172,045 14.519% | 7,460,105 (+158.32%) | Filing History |
| 2023-10-10 09:09 am Purchase | 2023-10-09 | 13G | Alector, Inc. ALEC | FIL Limited | 12,172,045 14.519% | 12,172,045 (New Position) | Filing History |
| 2023-02-10 5:16 pm Purchase | 2022-12-31 | 13G | Alector, Inc. ALEC | Rosenthal Arnon | 6,884,362 8.300% | 323,853 (+4.94%) | Filing History |
| 2023-02-10 1:13 pm Sale | 2022-12-31 | 13G | Alector, Inc. ALEC | EcoR1 Capital LLC | 4,056,548 4.900% | -938,422 (-18.79%) | Filing History |