The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Rosenthal Arnon since 2021.
This trader's CIK number is 1757770.
At the time of last reporting, Rosenthal Arnon was the Chief Executive Officer of Alector, Inc.. (stock ticker symbol ALEC).
Also see all insider trading activities at Alector, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | ALEC | 0 | $0 | 143,979 | $257,606 | 0 | $0 |
| 2024 | ALEC | 0 | $0 | 122,643 | $511,826 | 0 | $0 |
| 2023 | ALEC | 0 | $0 | 55,768 | $341,193 | 0 | $0 |
| 2021 | ALEC | 0 | $0 | 819,625 | $20,797,068 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-09-02 | ALEC | Sale | 51,562 | 2.50 | 128,750 |
| 2025-06-02 | ALEC | Sale | 52,087 | 1.34 | 69,692 |
| 2025-03-03 | ALEC | Sale | 40,330 | 1.47 | 59,164 |
| 2024-12-02 | ALEC | Sale | 52,172 | 2.52 | 131,421 |
| 2024-09-03 | ALEC | Sale | 26,499 | 4.88 | 129,394 |
| 2024-06-03 | ALEC | Sale | 25,135 | 4.80 | 120,622 |
| 2024-03-04 | ALEC | Sale | 18,837 | 6.92 | 130,389 |
| 2023-12-04 | ALEC | Sale | 23,831 | 5.56 | 132,500 |
| 2023-09-05 | ALEC | Sale | 5,647 | 5.20 | 29,336 |
| 2023-06-02 | ALEC | Sale | 5,255 | 6.90 | 36,280 |
| 2023-03-17 | ALEC | Sale | 15,186 | 6.22 | 94,426 |
| 2023-03-02 | ALEC | Sale | 5,849 | 8.32 | 48,651 |
| 2021-11-10 | ALEC | Sale | 55,000 | 25.00 | 1,375,000 |
| 2021-11-11 | ALEC | Sale | 55,000 | 25.00 | 1,375,000 |
| 2021-11-08 | ALEC | Sale | 100,000 | 25.00 | 2,500,000 |
| 2021-11-09 | ALEC | Sale | 100,000 | 25.00 | 2,500,000 |
| 2021-11-05 | ALEC | Sale | 100,000 | 25.00 | 2,500,000 |
| 2021-11-04 | ALEC | Sale | 100,000 | 25.00 | 2,500,000 |
| 2021-09-22 | ALEC | Sale | 100,000 | 25.70 | 2,569,500 |
| 2021-09-23 | ALEC | Sale | 9,625 | 25.10 | 241,568 |
| 2021-09-20 | ALEC | Sale | 100,000 | 26.04 | 2,604,400 |
| 2021-09-21 | ALEC | Sale | 100,000 | 26.32 | 2,631,600 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Rosenthal Arnon (Chief Executive Officer of Alector, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.