12 insiders reported 58 Form 4 transactions for Alector, Inc. (ALEC) over the past 18 months (most recent 2026-09-04). Recent activity: Rosenthal Arnon (Chief Executive Officer) Sell 72,606 shares, Wong-Sarad Grace (Principal Accounting Officer) Sell 656 shares, Berkley Neil Lindsay (CFO & Chief Business Officer) Sell 29,251 shares, Wong-Sarad Grace (Principal Accounting Officer) Sell 5,165 shares, Wong-Sarad Grace (Principal Accounting Officer) Sell 3,625 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-04 | Rosenthal Arnon | Chief Executive Officer | Sell | 72,606 | $193,473 |
| 2026-09-04 | Wong-Sarad Grace | Principal Accounting Officer | Sell | 656 | $1,804 |
| 2026-09-04 | Berkley Neil Lindsay | CFO & Chief Business Officer | Sell | 29,251 | $77,948 |
| 2026-09-04 | Wong-Sarad Grace | Principal Accounting Officer | Sell | 5,165 | $13,767 |
| 2026-09-04 | Wong-Sarad Grace | Principal Accounting Officer | Sell | 3,625 | $9,094 |
| 2026-08-21 | Rosenthal Arnon | Chief Executive Officer | Sell | 1.1M | $0 |
| 2026-08-21 | Rosenthal Arnon | Chief Executive Officer | Buy | 350,000 | $0 |
| 2026-08-21 | Rosenthal Arnon | Chief Executive Officer | Buy | 350,000 | $0 |
| 2026-08-21 | Rosenthal Arnon | Chief Executive Officer | Buy | 350,000 | $0 |
| 2026-07-09 | Wong-Sarad Grace | Principal Accounting Officer | Buy | 20,000 | $0 |
| 2026-06-17 | Altmeyer Mark | Director | Buy | 28,700 | $0 |
| 2026-06-17 | LAVIGNE LOUIS J JR | Director | Buy | 28,700 | $0 |
| 2026-06-17 | Hammond Paula | Director | Buy | 28,700 | $0 |
| 2026-06-17 | SCHELLER RICHARD H | Director | Buy | 28,700 | $0 |
| 2026-06-17 | Yaffe Kristine | Director | Buy | 28,700 | $0 |
| 2026-06-17 | DESOUZA ERROL B | Director | Buy | 28,700 | $0 |
| 2026-06-17 | GAROFALO ELIZABETH A. | Director | Buy | 28,700 | $0 |
| 2026-06-03 | Berkley Neil Lindsay | CFO & Chief Business Officer | Sell | 19,360 | $38,139 |
| 2026-06-03 | SCHELLER RICHARD H | Director | Buy | 10,833 | $0 |
| 2026-06-03 | Rosenthal Arnon | Chief Executive Officer | Sell | 87,216 | $171,816 |
| 2026-06-03 | Wong-Sarad Grace | Principal Accounting Officer | Sell | 5,709 | $11,247 |
| 2026-06-03 | Wong-Sarad Grace | Principal Accounting Officer | Sell | 3,475 | $6,533 |
| 2026-04-17 | Wong-Sarad Grace | Principal Accounting Officer | Sell | 1,820 | $4,823 |
| 2026-03-13 | Rosenthal Arnon | Chief Executive Officer | Buy | 116,246 | $0 |
| 2026-03-13 | Berkley Neil Lindsay | CFO & Chief Business Officer | Buy | 54,600 | $0 |
来源：SEC Form 4 申报文件 · 截至 2026-09-04