Arnon Rosenthal

Insider Reports History

Location
South San Francisco, CA
Signature
/s/ Grace Wong-Sarad, by power of attorney
All insider transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by Arnon Rosenthal:

Company Role Class Num Shares Value Price $ Report Date Ownership
Alector, Inc. Chief Executive Officer, Director Common Stock 2,420,040 $2,709,476 $1.12 03 Dec 2025 Direct
Alector, Inc. Chief Executive Officer, Director Common Stock 652,500 $874,350 $1.34 03 Dec 2025 Indirect
Alector, Inc. Chief Executive Officer, Director Employee Stock Option (right to buy) 522,500 10 Nov 2025 Direct

Insider Reports Filed by Arnon Rosenthal

Symbol Company Period Transactions Value $ Form Type Role Filing Time
ALEC Alector, Inc. 03 Dec 2025 1 -$116,826 4 Chief Executive Officer, Director 03 Dec 2025, 21:06
ALEC Alector, Inc. 10 Nov 2025 2 $0 4 Chief Executive Officer, Director 12 Nov 2025, 16:10
ALEC Alector, Inc. 02 Sep 2025 1 -$128,740 4 Chief Executive Officer, Director 04 Sep 2025, 16:27
ALEC Alector, Inc. 01 Jul 2025 2 $0 4 Chief Executive Officer, Director 01 Jul 2025, 17:00
ALEC Alector, Inc. 02 Jun 2025 1 -$69,713 4 Chief Executive Officer, Director 04 Jun 2025, 16:18
ALEC Alector, Inc. 03 Mar 2025 1 -$59,176 4 Chief Executive Officer, Director 05 Mar 2025, 16:05
ALEC Alector, Inc. 02 Dec 2024 1 -$131,442 4 Chief Executive Officer, Director 03 Dec 2024, 17:40
ALEC Alector, Inc. 01 Oct 2024 1 $0 4 Chief Executive Officer, Director 02 Oct 2024, 16:05
ALEC Alector, Inc. 03 Sep 2024 1 -$129,386 4 Chief Executive Officer, Director 04 Sep 2024, 16:15
ALEC Alector, Inc. 03 Jun 2024 1 -$120,617 4 Chief Executive Officer, Director 04 Jun 2024, 18:05
ALEC Alector, Inc. 04 Mar 2024 1 -$130,385 4 Chief Executive Officer, Director 05 Mar 2024, 18:00
ALEC Alector, Inc. 04 Dec 2023 1 -$132,500 4 Chief Executive Officer, Director 06 Dec 2023, 18:30
ALEC Alector, Inc. 01 Oct 2023 2 $0 4 Chief Executive Officer, Director 03 Oct 2023, 18:10
ALEC Alector, Inc. 05 Sep 2023 1 -$29,333 4 Chief Executive Officer, Director 06 Sep 2023, 19:18
ALEC Alector, Inc. 02 Jun 2023 1 -$36,278 4 Chief Executive Officer, Director 05 Jun 2023, 18:48
ALEC Alector, Inc. 03 Mar 2023 2 -$94,428 4 Chief Executive Officer, Director 21 Mar 2023, 20:35
ALEC Alector, Inc. 02 Mar 2023 1 -$48,650 4 Chief Executive Officer, Director 03 Mar 2023, 19:47
ALEC Alector, Inc. 01 Oct 2022 2 $0 4 Chief Executive Officer, Director 04 Oct 2022, 19:16
ALEC Alector, Inc. 10 Nov 2021 2 -$2,750,000 4 Chief Executive Officer, Director 12 Nov 2021, 17:36
ALEC Alector, Inc. 08 Nov 2021 8 -$5,000,000 4 Chief Executive Officer, Director 10 Nov 2021, 18:07
ALEC Alector, Inc. 04 Nov 2021 8 -$5,000,000 4 Chief Executive Officer, Director 08 Nov 2021, 17:39
ALEC Alector, Inc. 01 Oct 2021 1 $0 4 Chief Executive Officer, Director 04 Oct 2021, 18:53
ALEC Alector, Inc. 22 Sep 2021 3 -$2,774,755 4 Chief Executive Officer, Director 23 Sep 2021, 21:12
ALEC Alector, Inc. 20 Sep 2021 4 -$5,191,827 4 Chief Executive Officer, Director 22 Sep 2021, 16:54
ALEC Alector, Inc. 07 May 2021 1 $0 4 Chief Executive Officer, Director 11 May 2021, 18:22