Arnon Rosenthal
Chief Executive Officer at Alector Inc.
Sits on 1 board. Last updated September 28, 2026
Time on boards
- Boards served
- 1
- Current seats
- 1
- Board service
- 4 years
- Director since
- 2023
4 years of board service in total across 1 board, counting each seat separately. Longest: Alector Inc., 3 years.
Alector Inc.
Director · Chief Executive Officer
Chief executive roles
Alector Inc.
· Chief Executive Officer
Dates unknown
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.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Dec 4, 2023 | Alector Inc. | Open-market sale | −23,831 | $5.56 | $132,500 |
| Oct 1, 2023 | Alector Inc. | Grant or award | +397,600 | — | — |
| Sep 5, 2023 | Alector Inc. | Open-market sale | −5,647 | $5.19 | $29,308 |
| Jun 2, 2023 | Alector Inc. | Open-market sale | −5,255 | $6.90 | $36,260 |
| Mar 17, 2023 | Alector Inc. | Open-market sale | −15,186 | $6.22 | $94,457 |
| Mar 3, 2023 | Alector Inc. | Grant or award | +42,990 | — | — |
| Mar 2, 2023 | Alector Inc. | Open-market sale | −5,849 | $8.32 | $48,664 |
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