News + Filings Transactions Holdings
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Rosenthal Arnon
| Date | Name | Symbol | Type | Security | Shares | Price | Value | Ownership | Reported |
| 10/01/2023 | Alector, Inc. | ALEC | Grant | Employee Stock Option (right to buy) | 132.5k | $6.48 | $858.6k | | 10/01/2023 |
| 10/01/2023 | Alector, Inc. | ALEC | Grant | Common Stock | 397.6k | $0.00 | $0 | | 10/01/2023 |
| 06/02/2023 | Alector, Inc. | ALEC | Sale | Common Stock | 5.3k | $6.90 | $36.3k | | 06/02/2023 |
| 03/17/2023 | Alector, Inc. | ALEC | Sale | Common Stock | 15.2k | $6.22 | $94.4k | | 03/03/2023 |
| 03/03/2023 | Alector, Inc. | ALEC | Grant | Common Stock | 43k | $0.00 | $0 | | 03/03/2023 |
| 03/02/2023 | Alector, Inc. | ALEC | Sale | Common Stock | 5.8k | $8.32 | $48.7k | | 03/02/2023 |
| 10/01/2022 | Alector, Inc. | ALEC | Grant | Common Stock | 179.2k | $0.00 | $0 | | 10/01/2022 |
| 10/01/2022 | Alector, Inc. | ALEC | Grant | Employee Stock Option (right to buy) | 119.4k | $9.46 | $1.1M | | 10/01/2022 |
| 11/11/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 55k | $25.00 | $1.4M | See footnote | 11/10/2021 |
| 11/10/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 55k | $25.00 | $1.4M | See footnote | 11/10/2021 |
| 11/09/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/08/2021 |
| 11/09/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/08/2021 |
| 11/09/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/08/2021 |
| 11/09/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 55k | $25.00 | $1.4M | See footnote | 11/08/2021 |
| 11/08/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/08/2021 |
| 11/08/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/08/2021 |
| 11/08/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/08/2021 |
| 11/08/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 55k | $25.00 | $1.4M | See footnote | 11/08/2021 |
| 11/05/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 55k | $25.00 | $1.4M | See footnote | 11/04/2021 |
| 11/05/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/04/2021 |
| 11/05/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/04/2021 |
| 11/05/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/04/2021 |
| 11/04/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 55k | $25.00 | $1.4M | See footnote | 11/04/2021 |
| 11/04/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/04/2021 |
| 11/04/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/04/2021 |
| 11/04/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 15k | $25.00 | $375k | See footnote | 11/04/2021 |
| 10/01/2021 | Alector, Inc. | ALEC | Grant | Employee Stock Option (right to buy) | 417.2k | $23.70 | $9.9M | | 10/01/2021 |
| 09/23/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 9.6k | $25.10 | $241.6k | See footnote | 09/22/2021 |
| 09/22/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 5.3k | $26.10 | $137.9k | See footnote | 09/22/2021 |
| 09/22/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 94.7k | $25.29 | $2.4M | See footnote | 09/22/2021 |
| 09/21/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 91.5k | $26.07 | $2.4M | See footnote | 09/20/2021 |
| 09/21/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 8.5k | $26.56 | $224.7k | See footnote | 09/20/2021 |
| 09/20/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 92k | $25.76 | $2.4M | See footnote | 09/20/2021 |
| 09/20/2021 | Alector, Inc. | ALEC | Sale | Common Stock | 8k | $26.33 | $211.8k | See footnote | 09/20/2021 |
| 05/07/2021 | Alector, Inc. | ALEC | Grant | Common Stock | 150k | $0.00 | $0 | | 05/07/2021 |
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