Company · CIK 0001653087 · SIC 2836 — Biological Products, (No Diagnostic Substances) · Nasdaq
Alector, Inc. · ALEC
Insider activity reported against this company. All insider holders · On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 3, 2026 SForm 4 → | Sep 4, 5:45 pm EDT | Neil Lindsay BerkleyCFO & Chief Business Officer | 29,251 | $2.66 | $77,948 | 350,649 | −7.70% | |
| Sep 3, 2026 SForm 4 → | Sep 4, 5:45 pm EDT | Arnon RosenthalChief Executive Officer, Director | 72,606 | $2.66 | $193,473 | 2,294,600 | −3.07% | |
| Sep 2, 2026 SForm 4 → | Sep 4, 5:45 pm EDT | Grace Wong-SaradPrincipal Accounting Officer | 9,446 | $2.61 | $24,666 | 106,015 | −8.18% | |
| Aug 19, 2026 GForm 4 → | Aug 21, 6:00 pm EDT | Arnon RosenthalChief Executive Officer, Director | 2,100,000 | — | — | 1,002,500 | — | |
| Jul 9, 2026 AForm 4 → | Jul 9, 4:05 pm EDT | Grace Wong-SaradPrincipal Accounting Officer | 20,000 | — | — | 115,461 | — | |
| Jun 17, 2026 AForm 4 → | Jun 17, 4:05 pm EDT | Kristine YaffeDirector | 28,700 | — | — | 124,109 | — | |
| Jun 17, 2026 AForm 4 → | Jun 17, 4:05 pm EDT | Richard H SchellerDirector | 28,700 | — | — | 134,899 | — | |
| Jun 17, 2026 AForm 4 → | Jun 17, 4:05 pm EDT | Paula HammondDirector | 28,700 | — | — | 103,609 | — | |
| Jun 17, 2026 AForm 4 → | Jun 17, 4:05 pm EDT | Elizabeth A. GarofaloDirector | 28,700 | — | — | 118,650 | — | |
| Jun 17, 2026 AForm 4 → | Jun 17, 4:05 pm EDT | Mark AltmeyerDirector | 28,700 | — | — | 98,650 | — | |
| Jun 17, 2026 AForm 4 → | Jun 17, 4:05 pm EDT | Errol B DesouzaDirector | 28,700 | — | — | 98,650 | — | |
| Jun 17, 2026 AForm 4 → | Jun 17, 4:05 pm EDT | Louis J Lavigne Jr.Director | 28,700 | — | — | 128,109 | — | |
| Jun 2, 2026 SForm 4 → | Jun 3, 5:30 pm EDT | Arnon RosenthalChief Executive Officer, Director | 87,216 | $1.97 | $172,191 | 2,367,206 | −3.55% | |
| Jun 2, 2026 SForm 4 → | Jun 3, 5:30 pm EDT | Grace Wong-SaradPrincipal Accounting Officer | 9,184 | $1.94 | $17,813 | 95,461 | −8.78% | |
| Jun 2, 2026 SForm 4 → | Jun 3, 5:30 pm EDT | Neil Lindsay BerkleyCFO & Chief Business Officer | 19,360 | $1.97 | $38,221 | 379,900 | −4.85% | |
| Jun 1, 2026 AForm 4 → | Jun 3, 7:08 pm EDT | Richard H SchellerDirector | 10,833 | — | — | 106,199 | — | |
| Feb 11, 2019 CForm 4 → | Feb 13, 5:35 pm EST | Terrance McGuireDirector | 12,858,194 | — | — | 12,858,194 | — | plan? |
| Feb 11, 2019 CForm 4 → | Feb 13, 5:33 pm EST | Polaris Venture Management Co. VI, L.L.C. +410% Owner | 12,858,194 | — | — | 12,858,194 | — | plan? |
| Feb 11, 2019 CForm 4 → | Feb 11, 7:12 pm EST | Tillman U. GerngrossDirector | 427,292 | — | — | 2,608,610 | — | plan? |
| Feb 11, 2019 PForm 4 → | Feb 11, 7:11 pm EST | ORBIMED ADVISORS LLC +2Director, 10% Owner | 411,700 | $19.00 | $7,822,300 | 203,200 | — | plan? |
| Feb 11, 2019 CForm 4 → | Feb 11, 7:11 pm EST | ORBIMED ADVISORS LLC +2Director, 10% Owner | 12,682,329 | — | — | 2,405,292 | — | plan? |
| Feb 11, 2019 CForm 4 → | Feb 11, 7:09 pm EST | Louis J Lavigne Jr.Director | 10,552 | — | — | 10,552 | — | plan? |
| Feb 11, 2019 CForm 4 → | Feb 11, 7:08 pm EST | David M. WehnerDirector | 24,621 | — | — | 24,621 | — | plan? |
| Feb 11, 2019 PForm 4 → | Feb 11, 7:06 pm EST | Carl L GordonDirector, 10% Owner | 411,700 | $19.00 | $7,822,300 | 203,200 | — | plan? |
| Feb 11, 2019 CForm 4 → | Feb 11, 7:06 pm EST | Carl L GordonDirector, 10% Owner | 12,682,329 | — | — | 2,405,292 | — | plan? |