Alector, Inc. (ALEC) Insider Trading
Over the last 3 months, ALEC insiders made 0 open-market buys and 1 sale, a net sale of -$5K (SEC Form 4). Over the last 6 months, 86 institutions increased and 81 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
1
Net (3m)
-$4.8K
Insider trades by month Buys Sells
Aug
Sep
Dec
Feb
Mar
Apr
Context3-month price -6.5%Institutions mixed (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Jun 17, 2026 | Hammond Pauladirector | Grant | 9,450 | — |
| Jun 17, 2026 | SCHELLER RICHARD Hdirector | Grant | 28,700 | — |
| Jun 17, 2026 | DESOUZA ERROL Bdirector | Grant | 9,450 | — |
| Jun 17, 2026 | Altmeyer Markdirector | Grant | 9,450 | — |
| Jun 17, 2026 | Hammond Pauladirector | Grant | 28,700 | — |
| Jun 17, 2026 | LAVIGNE LOUIS J JRdirector | Grant | 9,450 | — |
| Jun 17, 2026 | Altmeyer Markdirector | Grant | 28,700 | — |
| Jun 17, 2026 | GAROFALO ELIZABETH A.director | Grant | 28,700 | — |
| Jun 17, 2026 | DESOUZA ERROL Bdirector | Grant | 28,700 | — |
| Jun 17, 2026 | Yaffe Kristinedirector | Grant | 9,450 | — |
| Jun 17, 2026 | LAVIGNE LOUIS J JRdirector | Grant | 28,700 | — |
| Jun 17, 2026 | SCHELLER RICHARD Hdirector | Grant | 9,450 | — |
| Jun 17, 2026 | Yaffe Kristinedirector | Grant | 28,700 | — |
| Jun 17, 2026 | GAROFALO ELIZABETH A.director | Grant | 9,450 | — |
| Jun 3, 2026 | SCHELLER RICHARD Hdirector | Grant | 10,833 | — |
| Apr 17, 2026 | Wong-Sarad Graceofficer: Principal Accounting Officer | Sell | 1,820 | $2.65 |
| Mar 13, 2026 | Rosenthal Arnondirector, officer: Chief Executive Officer | Grant | 116,246 | — |
| Mar 13, 2026 | Berkley Neil Lindsayofficer: CFO & Chief Business Officer | Grant | 54,600 | — |
| Mar 12, 2026 | Wong-Sarad Graceofficer: Principal Accounting Officer | Sell | 1,000 | $2.65 |
| Mar 3, 2026 | Wong-Sarad Graceofficer: Principal Accounting Officer | Sell | 3,367 | $2.08 |
| Feb 26, 2026 | Wong-Sarad Graceofficer: Principal Accounting Officer | Sell | 4,079 | $2.50 |
| Dec 8, 2025 | Wong-Sarad Graceofficer: Principal Accounting Officer | Sell | 4,753 | $1.21 |
| Dec 3, 2025 | Wong-Sarad Graceofficer: Principal Accounting Officer | Sell | 8,056 | $1.12 |
| Dec 3, 2025 | Berkley Neil Lindsayofficer: Chief Bus Ofcr & Interim CFO | Sell | 37,261 | $1.12 |
| Dec 3, 2025 | Kenkare-Mitra Saraofficer: President and Head of R&D | Sell | 41,687 | $1.12 |
| Dec 3, 2025 | Rosenthal Arnondirector, officer: Chief Executive Officer | Sell | 104,347 | $1.12 |
| Nov 12, 2025 | Rosenthal Arnondirector, officer: Chief Executive Officer | Grant | 522,500 | $1.31 |
| Nov 12, 2025 | Wong-Sarad Graceofficer: Principal Accounting Officer | Grant | 32,343 | — |
| Nov 12, 2025 | Rosenthal Arnondirector, officer: Chief Executive Officer | Grant | 174,167 | — |
| Nov 12, 2025 | Berkley Neil Lindsayofficer: Chief Bus Ofcr & Interim CFO | Grant | 195,000 | $1.31 |
Source: ALEC SEC Form 4 filings, latest Jun 17, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their ALEC positions over the last 6 months (SEC Form 13F).
Increased
86
New positions
52
Reduced
81
Sold out
62
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| TCG CROSSOVER MANAGEMENT, LLC | New Position | 10.0M | Feb 17, 2026 |
| TCG CROSSOVER MANAGEMENT, LLC | Unchanged | 10.0M | May 15, 2026 |
| BLACKROCK, INC. | Increased | 7.7M | May 13, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 7.4M | May 15, 2026 |
| BLACKROCK, INC. | Reduced | 7.1M | Feb 12, 2026 |
| VANGUARD GROUP INC | Increased | 6.9M | Jan 29, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 4.0M | May 13, 2026 |
| FORESITE CAPITAL MANAGEMENT IV, LLC | New Position | 3.9M | Feb 17, 2026 |
| FORESITE CAPITAL MANAGEMENT IV, LLC | Unchanged | 3.9M | May 15, 2026 |
| MERCK & CO., INC. | Unchanged | 3.5M | Feb 17, 2026 |
| MERCK & CO., INC. | Unchanged | 3.5M | May 13, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | Increased | 3.4M | Feb 10, 2026 |
| 683 CAPITAL MANAGEMENT, LLC | Increased | 3.4M | Feb 17, 2026 |
| D. E. SHAW & CO., INC. | Increased | 3.3M | May 15, 2026 |
| BALYASNY ASSET MANAGEMENT L.P. | New Position | 3.3M | Feb 17, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.