Rosenthal Arnon (CIK 1757770) reported 13 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-09-04). Recent activity: Sell ALEC (72,606 shares), Sell ALEC (1.1M shares), Buy ALEC (350,000 shares), Buy ALEC (350,000 shares), Buy ALEC (350,000 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-09-04 | Alector, Inc. (ALEC) | Chief Executive Officer | Sell | 72,606 | $193,473 |
| 2026-08-21 | Alector, Inc. (ALEC) | Chief Executive Officer | Sell | 1.1M | $0 |
| 2026-08-21 | Alector, Inc. (ALEC) | Chief Executive Officer | Buy | 350,000 | $0 |
| 2026-08-21 | Alector, Inc. (ALEC) | Chief Executive Officer | Buy | 350,000 | $0 |
| 2026-08-21 | Alector, Inc. (ALEC) | Chief Executive Officer | Buy | 350,000 | $0 |
| 2026-06-03 | Alector, Inc. (ALEC) | Chief Executive Officer | Sell | 87,216 | $171,816 |
| 2026-03-13 | Alector, Inc. (ALEC) | Chief Executive Officer | Buy | 116,246 | $0 |
| 2026-03-03 | Alector, Inc. (ALEC) | Chief Executive Officer | Sell | 81,864 | $173,552 |
| 2025-12-03 | Alector, Inc. (ALEC) | Chief Executive Officer | Sell | 104,347 | $116,869 |
| 2025-11-12 | Alector, Inc. (ALEC) | Chief Executive Officer | Buy | 174,167 | $0 |
| 2025-09-04 | Alector, Inc. (ALEC) | Chief Executive Officer | Sell | 51,562 | $128,905 |
| 2025-07-01 | Alector, Inc. (ALEC) | Chief Executive Officer | Buy | 137,125 | $0 |
| 2025-06-04 | Alector, Inc. (ALEC) | Chief Executive Officer | Sell | 52,087 | $69,797 |
来源：SEC Form 4 申报文件 · 截至 2026-09-04