Alector Inc.
Last updated September 27, 2026
Organization details
- Legal name
- Alector Inc.
- Ownership
- Public
- Status
- Active
- SIC code
- 2836 — Biological Products, (No Diagnostic Substances)
- Headquarters city
- South SAN Francisco
- Headquarters state / province
- California
- Headquarters country
- United States
- Fiscal year end
- December
- Ticker symbol
- ALEC
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0001653087
- EIN
- 82-2933343
Board of directors
-
Arnon Rosenthal · Director · Chief Executive OfficerSince 2023
-
David M. Wehner · DirectorSince 2023
-
Elizabeth A. Garofalo · DirectorSince 2023
-
Errol B. Desouza · DirectorSince 2024
-
Kristine Yaffe · DirectorSince 2023
-
Louis J. Lavigne Jr. · DirectorSince 2023
-
Mark Altmeyer · DirectorSince 2024
-
Paula Hammond · DirectorSince 2023
-
Richard H. Scheller · DirectorSince 2023
- Since 2023
-
Tillman U. Gerngross · DirectorSince 2023
Chief executives
Arnon Rosenthal
· Chief Executive Officer
Dates unknown
Director election results
Annual meeting of June 17, 2026. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
74.8%
-
98.5%
Board connections
5 of this board's directors also sit on 10 other boards.
- via Errol B. Desouza and Terrance Mcguire
- via Elizabeth A. Garofalo
- via David M. Wehner
- via Richard H. Scheller
- via Terrance Mcguire
- via Richard H. Scheller
- via Errol B. Desouza
- via Terrance Mcguire
- via Terrance Mcguire
- via Elizabeth A. Garofalo
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $1,022,078
- 21 sales by 4 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 4, 2026 | Wong-Sarad Grace Officer (Principal Accounting Officer) | Open-market sale | −3,625 | $2.51 | $9,094 |
| Sep 3, 2026 | Berkley Neil Lindsay Officer (CFO & Chief Business Officer) | Open-market sale | −29,251 | $2.66 | $77,948 |
| Sep 3, 2026 | Arnon Rosenthal Director, Officer (Chief Executive Officer) | Open-market sale | −72,606 | $2.66 | $193,473 |
| Sep 3, 2026 | Wong-Sarad Grace Officer (Principal Accounting Officer) | Open-market sale | −5,165 | $2.67 | $13,767 |
| Sep 2, 2026 | Wong-Sarad Grace Officer (Principal Accounting Officer) | Open-market sale | −656 | $2.75 | $1,804 |
| Aug 19, 2026 | Arnon Rosenthal Director, Officer (Chief Executive Officer) | Gift | −1,050,000 | — | — |
| Aug 19, 2026 | Arnon Rosenthal Director, Officer (Chief Executive Officer) | Gift | +350,000 | — | — |
| Aug 19, 2026 | Arnon Rosenthal Director, Officer (Chief Executive Officer) | Gift | +350,000 | — | — |
| Aug 19, 2026 | Arnon Rosenthal Director, Officer (Chief Executive Officer) | Gift | +350,000 | — | — |
| Jul 9, 2026 | Wong-Sarad Grace Officer (Principal Accounting Officer) | Grant or award | +20,000 | — | — |
| Jun 17, 2026 | Kristine Yaffe Director | Grant or award | +28,700 | — | — |
| Jun 17, 2026 | Elizabeth A. Garofalo Director | Grant or award | +28,700 | — | — |
| Jun 17, 2026 | Richard H. Scheller Director | Grant or award | +28,700 | — | — |
| Jun 17, 2026 | Paula Hammond Director | Grant or award | +28,700 | — | — |
| Jun 17, 2026 | Mark Altmeyer Director | Grant or award | +28,700 | — | — |
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