Company filings profile · CIK 0001653087
Alector, Inc. — SEC filings & insider activity.
Real, source-linked SEC EDGAR activity for Alector, Inc. (ALEC): 20 filings in the last 90 days vs 29 in the prior 90 (filing-velocity cooling ↓ · 0.69×). Latest material 8-K events, insider Form-4 transactions, and periodic reports — monitored for change.
✔ Verified against the public SEC EDGAR filing record as of Oct 17, 2026. Source-linked, daily-refreshed.
Material 8-K events — Alector, Inc.
8-K disclosures decoded by item code (the material events: agreements, results, control/management changes, impairments, restatements).
| Filed | Event | |
|---|---|---|
| Oct 16, 2026 | Entry into a Material Agreement; Other Events; Financial Statements and Exhibits | ↗ |
| Oct 14, 2026 | Departure/Election of Directors or Officers | ↗ |
| Oct 5, 2026 | Entry into a Material Agreement; Results of Operations (earnings); Regulation FD Disclosure; Other Events; Financial Statements and Exhibits | ↗ |
| Aug 6, 2026 | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Jul 8, 2026 | Termination of a Material Agreement | ↗ |
| Jun 17, 2026 | Item 5.07 | ↗ |
| May 7, 2026 | Entry into a Material Agreement; Financial Statements and Exhibits | ↗ |
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Insider transactions (Form 4 / 3 / 5)
Recent filings
| Filed | Form | Detail | |
|---|---|---|---|
| Oct 16, 2026 | 424B5 | 424B5 | ↗ |
| Oct 16, 2026 | 8-K | Entry into a Material Agreement; Other Events; Financial Statements and Exhibits | ↗ |
| Oct 16, 2026 | FWP | FWP | ↗ |
| Oct 15, 2026 | 4 | 4 | ↗ |
| Oct 15, 2026 | 4 | 4 | ↗ |
| Oct 15, 2026 | 4 | 4 | ↗ |
| Oct 14, 2026 | 8-K | Departure/Election of Directors or Officers | ↗ |
| Oct 5, 2026 | 8-K | Entry into a Material Agreement; Results of Operations (earnings); Regulation FD Disclosure; Other Events; Financial Statements and Exhibits | ↗ |
| Sep 18, 2026 | SCHEDULE 13G | ↗ | |
| Sep 4, 2026 | 4 | 4 | ↗ |
| Sep 4, 2026 | 4 | 4 | ↗ |
| Sep 4, 2026 | 4 | 4 | ↗ |
| Sep 4, 2026 | 144 | ↗ | |
| Sep 2, 2026 | 144 | ↗ | |
| Sep 1, 2026 | 144 | ↗ | |
| Sep 1, 2026 | 144 | ↗ | |
| Sep 1, 2026 | 144 | ↗ | |
| Aug 21, 2026 | 4 | 4 | ↗ |
| Aug 6, 2026 | 10-Q | 10-Q | ↗ |
| Aug 6, 2026 | 8-K | Results of Operations (earnings); Financial Statements and Exhibits | ↗ |
| Jul 9, 2026 | 4 | 4 | ↗ |
| Jul 8, 2026 | 8-K | Termination of a Material Agreement | ↗ |
| Jun 17, 2026 | 4 | 4 | ↗ |
| Jun 17, 2026 | 4 | 4 | ↗ |
| Jun 17, 2026 | 4 | 4 | ↗ |
| Jun 17, 2026 | 8-K | Item 5.07 | ↗ |
| Jun 17, 2026 | 4 | 4 | ↗ |
| Jun 17, 2026 | 4 | 4 | ↗ |
| Jun 17, 2026 | 4 | 4 | ↗ |
| Jun 17, 2026 | 4 | 4 | ↗ |
| Jun 3, 2026 | 4 | 4 | ↗ |
| Jun 3, 2026 | 4 | 4 | ↗ |
| Jun 3, 2026 | 4 | 4 | ↗ |
| Jun 3, 2026 | 4 | 4 | ↗ |
| Jun 3, 2026 | 144 | ↗ | |
| Jun 1, 2026 | 144 | ↗ | |
| Jun 1, 2026 | 144 | ↗ | |
| Jun 1, 2026 | 144 | ↗ | |
| May 14, 2026 | SCHEDULE 13G/A | ↗ | |
| May 7, 2026 | 8-K | Entry into a Material Agreement; Financial Statements and Exhibits | ↗ |