Arnon Rosenthal

ALEC

Arnon Rosenthal serves as director, officer: Chief Executive Officer at Alector, Inc. (ALEC). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

0 trades

$0.00

Total Sells

19 trades

$19.12M

Net Position

Net Seller

$19.12M

Companies Traded

ALEC

Active Period

Sep 2021 – Mar 2026

19 total trades

Most Recent

Sell ALEC

Mar 3, 2026 · $173.8K

Arnon Rosenthal's Insider Trading at Alector, Inc. (ALEC)

Buys

0 · $0.00

Sells

19 · $19.12M

Total Shares Bought

Total Shares Sold

1,208,226

ALEC Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Mar 3, 2026	Sell	81,864	$2.12	$173.8K	2,338,176
Dec 3, 2025	Sell	104,347	$1.12	$116.8K	0
Sep 2, 2025	Sell	51,562	$2.50	$128.7K	0
Jun 2, 2025	Sell	52,087	$1.34	$69.7K	0
Mar 3, 2025	Sell	40,330	$1.47	$59.2K	0
Dec 2, 2024	Sell	52,172	$2.52	$131.4K	0
Sep 3, 2024	Sell	26,499	$4.88	$129.4K	0
Jun 3, 2024	Sell	25,135	$4.80	$120.6K	0
Mar 4, 2024	Sell	18,837	$6.92	$130.4K	0
Dec 4, 2023	Sell	23,831	$5.56	$132.5K	0
Sep 5, 2023	Sell	5,647	$5.19	$29.3K	0
Jun 2, 2023	Sell	5,255	$6.90	$36.3K	0
Mar 3, 2023	Sell	15,186	$6.22	$94.4K	0
Mar 2, 2023	Sell	5,849	$8.32	$48.7K	0
Nov 10, 2021	Sell	110,000	$25.00	$2.75M	0
Nov 8, 2021	Sell	140,000	$25.00	$3.50M	0
Nov 4, 2021	Sell	140,000	$25.00	$3.50M	0
Sep 22, 2021	Sell	109,625	$25.31	$2.77M	0
Sep 20, 2021	Sell	200,000	$25.96	$5.19M	0