Alector, Inc. - ALEC
All tracked SEC files for this issuer. Showing up to 200 latest records.
Need parsed ownership details (13D/13G with shares/percent)?
Open ownership details
Form 4 = insider transactions report. Form 144 = notice of proposed sale (not a completed trade confirmation).
Files summary
Total files loaded: 42
Latest filed: Apr 17, 2026
| Form | Count |
|---|---|
| 4 | 17 |
| 144 | 12 |
| SCHEDULE 13G/A | 7 |
| 8-K | 4 |
| SCHEDULE 13G | 2 |
Latest files
| Filed | Form | Report period | Accession | SEC |
|---|---|---|---|---|
| Apr 17, 2026 | 4 | Apr 16, 2026 | 0001193125-26-161848 | View |
| Apr 16, 2026 | 144 | — | 0001950047-26-003574 | View |
| Mar 26, 2026 | SCHEDULE 13G/A | — | 0000102909-26-000550 | View |
| Mar 13, 2026 | 4 | Mar 13, 2026 | 0001193125-26-106246 | View |
| Mar 13, 2026 | 4 | Mar 13, 2026 | 0001193125-26-106250 | View |
| Mar 12, 2026 | 4 | Mar 10, 2026 | 0001193125-26-104633 | View |
| Mar 10, 2026 | 144 | — | 0001950047-26-002453 | View |
| Mar 03, 2026 | 4 | Mar 03, 2026 | 0002074667-26-000004 | View |
| Mar 03, 2026 | 4 | Mar 02, 2026 | 0002075298-26-000002 | View |
| Mar 03, 2026 | 4 | Mar 02, 2026 | 0001757770-26-000002 | View |
| Mar 03, 2026 | 144 | — | 0001950047-26-002123 | View |
| Mar 03, 2026 | 4 | Mar 02, 2026 | 0002074667-26-000002 | View |
| Feb 27, 2026 | 144 | — | 0001193125-26-083400 | View |
| Feb 27, 2026 | 144 | — | 0001193125-26-083401 | View |
| Feb 27, 2026 | 144 | — | 0001193125-26-083402 | View |
| Feb 26, 2026 | 144 | — | 0001950047-26-001847 | View |
| Feb 26, 2026 | 4 | Feb 26, 2026 | 0001193125-26-077735 | View |
| Feb 25, 2026 | 8-K | Feb 25, 2026 | 0001193125-26-071557 | View |
| Feb 17, 2026 | SCHEDULE 13G/A | — | 0001493215-26-000024 | View |
| Feb 06, 2026 | SCHEDULE 13G/A | — | 0001193125-26-041267 | View |
| Jan 30, 2026 | SCHEDULE 13G/A | — | 0000102909-26-000060 | View |
| Jan 21, 2026 | SCHEDULE 13G/A | — | 0002012383-26-000735 | View |
| Dec 12, 2025 | 8-K | Dec 10, 2025 | 0001193125-25-317554 | View |
| Dec 08, 2025 | 4 | Dec 05, 2025 | 0002074667-25-000008 | View |
| Dec 05, 2025 | 144 | — | 0001950047-25-009833 | View |
| Dec 03, 2025 | 4 | Dec 03, 2025 | 0002075298-25-000006 | View |
| Dec 03, 2025 | 4 | Dec 03, 2025 | 0001895592-25-000005 | View |
| Dec 03, 2025 | 4 | Dec 03, 2025 | 0001757770-25-000007 | View |
| Dec 03, 2025 | 4 | Dec 03, 2025 | 0002074667-25-000006 | View |
| Dec 01, 2025 | 144 | — | 0001193125-25-304239 | View |
| Dec 01, 2025 | 144 | — | 0001193125-25-304241 | View |
| Dec 01, 2025 | 144 | — | 0001193125-25-304242 | View |
| Dec 01, 2025 | 144 | — | 0001193125-25-304243 | View |
| Nov 14, 2025 | SCHEDULE 13G | — | 0001493215-25-000035 | View |
| Nov 14, 2025 | SCHEDULE 13G | — | 0001193125-25-283021 | View |
| Nov 13, 2025 | SCHEDULE 13G/A | — | 0001193125-25-280330 | View |
| Nov 12, 2025 | 4 | Nov 10, 2025 | 0001757770-25-000006 | View |
| Nov 12, 2025 | 4 | Nov 10, 2025 | 0002075298-25-000005 | View |
| Nov 12, 2025 | 4 | Nov 10, 2025 | 0002074667-25-000005 | View |
| Nov 07, 2025 | SCHEDULE 13G/A | — | 0000315066-25-002908 | View |
| Nov 06, 2025 | 8-K | Nov 06, 2025 | 0001193125-25-269537 | View |
| Oct 21, 2025 | 8-K | Oct 20, 2025 | 0001193125-25-245102 | View |