Dudediligence.

Alector, Inc

ALECNASDAQ · Biological Products, (No Diagnostic Substances)
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Last 12 months

Sales planned on beside the trades reported on , and whether each names a .

Planned ·

$962,380

21 notices · 497,713 sh

Oct 2025 to Oct 2026

Reported ·

$725,991

16 sales · 0 buys

Oct 2025 to Jun 2026

The two figures cover different periods.

4 of 16 reported sales carry the 10b5-1 box. Together they are 0.40% of the shares on issue.

PLANNED · FORM 144Oct 2025 to Oct 2026REPORTED · FORM 4Oct 2025 to Jun 2026N2025DJ2026FMAMJJASO2026-09-04: GRACE WONG-SARAD, Form 1442026-09-02: GRACE WONG-SARAD, Form 1442026-09-02: Grace Wong-Sarad, Form 1442026-09-02: Arnon Rosenthal, Form 1442026-09-02: Neil L. Berkley, Form 1442026-06-03: GRACE WONG-SARAD, Form 1442026-06-02: Neil L. Berkley, Form 1442026-06-02: Grace Wong-Sarad, Form 1442026-06-02: Arnon Rosenthal, Form 1442026-04-16: GRACE WONG-SARAD, Form 1442026-03-10: GRACE WONG-SARAD, Form 1442026-03-03: GRACE WONG-SARAD, Form 1442026-03-02: Neil L. Berkley, Form 1442026-03-02: Arnon Rosenthal, Form 1442026-03-02: Grace Wong-Sarad, Form 1442026-02-26: GRACE WONG-SARAD, Form 1442025-12-05: GRACE WONG-SARAD, Form 1442025-12-01: Arnon Rosenthal, Form 1442025-12-01: Neil L. Berkley, Form 1442025-12-01: Grace Wong-Sarad, Form 1442025-12-01: Sara Kenkare-Mitra, Form 1442025-12-03: Rosenthal Arnon, sold2025-12-03: Kenkare-Mitra Sara, sold2025-12-03: Wong-Sarad Grace, sold2025-12-03: Berkley Neil Lindsay, sold2025-12-05: Wong-Sarad Grace, sold2026-02-26: Wong-Sarad Grace, sold2026-03-02: Rosenthal Arnon, sold2026-03-02: Wong-Sarad Grace, sold2026-03-02: Berkley Neil Lindsay, sold2026-03-03: Wong-Sarad Grace, sold2026-03-10: Wong-Sarad Grace, sold2026-04-16: Wong-Sarad Grace, sold2026-06-02: Berkley Neil Lindsay, sold2026-06-02: Wong-Sarad Grace, sold2026-06-02: Rosenthal Arnon, sold
under a no plan named▼ salesize is dollars

Form 144 notices, newest first

2026-09-04GRACE WONG-SARAD, Principal Accounting Officer$9,094
3,625 shplan 2025-09-05Form 4s on file end Jun 23144 ↗
2026-09-02GRACE WONG-SARAD, Principal Accounting Officer$1,804
656 shplan 2025-09-05Form 4s on file end Jun 23144 ↗
2026-09-02Grace Wong-Sarad, Principal Accounting Officer$13,589
5,662 shplan 2025-09-05Form 4s on file end Jun 23144 ↗
2026-09-02Arnon Rosenthal, Chief Executive Officer$191,285
79,702 shno plan dateForm 4s on file end Jun 23144 ↗
2026-09-02Neil L. Berkley, CFO & Chief Business Officer$77,047
32,103 shno plan dateForm 4s on file end Jun 23144 ↗
2026-06-03GRACE WONG-SARAD, Principal Accounting Officer$6,543
3,475 shplan 2025-09-05Form 4s on file end Jun 23144 ↗
2026-06-02Neil L. Berkley, CFO & Chief Business Officer$37,701
18,213 shno plan date144 ↗
Form 4, 2026-06-03: sold 19,360 at $1.97 Form 4 ↗
2026-06-02Grace Wong-Sarad, Principal Accounting Officer$10,845
5,239 shplan 2025-09-05144 ↗
Form 4, 2026-06-03: sold 9,184 at $1.94 Form 4 ↗
2026-06-02Arnon Rosenthal, Chief Executive Officer$139,874
67,572 shno plan date144 ↗
Form 4, 2026-06-03: sold 87,216 at $1.97 Form 4 ↗
2026-04-16GRACE WONG-SARAD, Principal Accounting Officer$4,823
1,820 shplan 2025-09-05144 ↗
Form 4, 2026-04-17: sold 1,820 at $2.65 Form 4 ↗
2026-03-10GRACE WONG-SARAD, Principal Accounting Officer$2,650
1,000 shplan 2025-09-05144 ↗
Form 4, 2026-03-12: sold 1,000 at $2.65 Form 4 ↗
2026-03-03GRACE WONG-SARAD, Principal Accounting Officer$7,012
3,367 shplan 2025-09-05144 ↗
Form 4, 2026-03-03: sold 3,367 at $2.08 Form 4 ↗
2026-03-02Neil L. Berkley, CFO & Chief Business Officer$56,281
23,161 shno plan date144 ↗
Form 4, 2026-03-03: sold 29,649 at $2.12 Form 4 ↗
2026-03-02Arnon Rosenthal, Chief Executive Officer$164,198
67,571 shno plan date144 ↗
Form 4, 2026-03-03: sold 81,864 at $2.12 Form 4 ↗
2026-03-02Grace Wong-Sarad, Principal Accounting Officer$15,302
6,297 shplan 2025-09-05144 ↗
Form 4, 2026-03-03: sold 8,071 at $2.12 Form 4 ↗
2026-02-26GRACE WONG-SARAD, Principal Accounting Officer$10,198
4,079 shplan 2025-09-05144 ↗
Form 4, 2026-02-26: sold 4,079 at $2.50 Form 4 ↗
2025-12-05GRACE WONG-SARAD, Principal Accounting Officer$5,751
4,753 shplan 2025-09-05144 ↗
Form 4, 2025-12-08: sold 4,753 at $1.21 Form 4 ↗
2025-12-01Arnon Rosenthal, Chief Executive Officer$113,685
92,427 shno plan date144 ↗
Form 4, 2025-12-03: sold 104,347 at $1.12 Form 4 ↗
2025-12-01Neil L. Berkley, CFO & Chief Business Officer$40,580
32,992 shno plan date144 ↗
Form 4, 2025-12-03: sold 37,261 at $1.12 Form 4 ↗
2025-12-01Grace Wong-Sarad, Principal Accounting Officer$8,715
7,085 shplan 2025-09-05144 ↗
Form 4, 2025-12-03: sold 8,056 at $1.12 Form 4 ↗
2025-12-01Sara Kenkare-Mitra, President and Head of R&D$45,404
36,914 shno plan date144 ↗
Form 4, 2025-12-03: sold 41,687 at $1.12 Form 4 ↗