ALEC
Alector, Inc.
NASDAQ · Healthcare · Biotechnology · US
$1.91
+3.24%0
Insider buys (3m)
5
Insider sells (3m)
-$296.1K
Net value (3m)
+3.9%
Price return (3m)
Form 4 filings
| Date | Insider | Activity | Shares | Price |
|---|---|---|---|---|
| Sep 4, 2026 | Wong-Sarad Grace · officer: Principal Accounting Officer | Sale | 3,625 | $2.51 |
| Sep 4, 2026 | Wong-Sarad Grace · officer: Principal Accounting Officer | Sale | 656 | $2.75 |
| Sep 4, 2026 | Rosenthal Arnon · director, officer: Chief Executive Officer | Sale | 72,606 | $2.66 |
| Sep 4, 2026 | Wong-Sarad Grace · officer: Principal Accounting Officer | Sale | 5,165 | $2.67 |
| Sep 4, 2026 | Berkley Neil Lindsay · officer: CFO & Chief Business Officer | Sale | 29,251 | $2.66 |
| Jul 9, 2026 | Wong-Sarad Grace · officer: Principal Accounting Officer | A-Award | 20,000 | $0.00 |
| Jun 17, 2026 | Yaffe Kristine · director | A-Award | 28,700 | $0.00 |
| Jun 17, 2026 | DESOUZA ERROL B · director | A-Award | 28,700 | $0.00 |
| Jun 17, 2026 | Hammond Paula · director | A-Award | 28,700 | $0.00 |
| Jun 17, 2026 | Altmeyer Mark · director | A-Award | 9,450 | $0.00 |
| Jun 17, 2026 | LAVIGNE LOUIS J JR · director | A-Award | 28,700 | $0.00 |
| Jun 17, 2026 | GAROFALO ELIZABETH A. · director | A-Award | 9,450 | $0.00 |
| Jun 17, 2026 | LAVIGNE LOUIS J JR · director | A-Award | 9,450 | $0.00 |
| Jun 17, 2026 | SCHELLER RICHARD H · director | A-Award | 9,450 | $0.00 |
| Jun 17, 2026 | Yaffe Kristine · director | A-Award | 9,450 | $0.00 |
| Jun 17, 2026 | Altmeyer Mark · director | A-Award | 28,700 | $0.00 |
| Jun 17, 2026 | GAROFALO ELIZABETH A. · director | A-Award | 28,700 | $0.00 |
| Jun 17, 2026 | DESOUZA ERROL B · director | A-Award | 9,450 | $0.00 |
| Jun 17, 2026 | SCHELLER RICHARD H · director | A-Award | 28,700 | $0.00 |
| Jun 17, 2026 | Hammond Paula · director | A-Award | 9,450 | $0.00 |
| Jun 3, 2026 | SCHELLER RICHARD H · director | A-Award | 10,833 | $0.00 |
| Apr 17, 2026 | Wong-Sarad Grace · officer: Principal Accounting Officer | Sale | 1,820 | $2.65 |
| Mar 13, 2026 | Berkley Neil Lindsay · officer: CFO & Chief Business Officer | A-Award | 54,600 | $0.00 |
| Mar 13, 2026 | Rosenthal Arnon · director, officer: Chief Executive Officer | A-Award | 116,246 | $0.00 |
| Mar 12, 2026 | Wong-Sarad Grace · officer: Principal Accounting Officer | Sale | 1,000 | $2.65 |
| Mar 3, 2026 | Wong-Sarad Grace · officer: Principal Accounting Officer | Sale | 3,367 | $2.08 |
| Feb 26, 2026 | Wong-Sarad Grace · officer: Principal Accounting Officer | Sale | 4,079 | $2.50 |
| Dec 8, 2025 | Wong-Sarad Grace · officer: Principal Accounting Officer | Sale | 4,753 | $1.21 |
| Dec 3, 2025 | Wong-Sarad Grace · officer: Principal Accounting Officer | Sale | 8,056 | $1.12 |
| Dec 3, 2025 | Berkley Neil Lindsay · officer: Chief Bus Ofcr & Interim CFO | Sale | 37,261 | $1.12 |
Institutional positioning
13F filings over the trailing two quarters
New 43Increased 100Reduced 77Sold out 8
| Filer | Action | Shares | Filed |
|---|---|---|---|
| TCG Crossover Management, LLC | Unchanged | 10,000,000 | Aug 14, 2026 |
| TCG CROSSOVER MANAGEMENT, LLC | Unchanged | 10,000,000 | May 15, 2026 |
| BlackRock, Inc. | Increased | 7,847,879 | Aug 7, 2026 |
| BLACKROCK, INC. | Increased | 7,741,245 | May 13, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 4,414,345 | Aug 13, 2026 |
| Nantahala Capital Management, LLC | Increased | 4,318,109 | Aug 19, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 4,038,785 | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Increased | 4,009,340 | Aug 13, 2026 |
| FORESITE CAPITAL MANAGEMENT IV, LLC | Unchanged | 3,887,200 | May 15, 2026 |
| Kynam Capital Management, LP | Increased | 3,808,494 | Aug 14, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | Increased | 3,751,326 | Aug 14, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 3,678,722 | May 15, 2026 |
| MERCK & CO., INC. | Unchanged | 3,545,719 | May 13, 2026 |
| Merck & Co., Inc. | Unchanged | 3,545,719 | Aug 7, 2026 |
| D. E. SHAW & CO., INC. | Increased | 3,332,835 | May 15, 2026 |
Insider activity from SEC Form 4; institutional positioning from 13F filings · Latest filing Sep 4, 2026