The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Keson-brookes Maiken since 2021.
This trader's CIK number is 1693805.
At the time of last reporting, Keson-brookes Maiken was the See Remarks of Mural Oncology Plc. (stock ticker symbol MURA).
Also see all insider trading activities at Mural Oncology Plc.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | MURA | 0 | $0 | 7,461 | $21,037 | 0 | $0 |
| 2024 | MURA | 0 | $0 | 2,157 | $7,355 | 0 | $0 |
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2022 | RUBY | 0 | $0 | 2,732 | $17,957 | 8,075 | $0 |
| 2021 | RUBY | 0 | $0 | 25,000 | $505,975 | 25,000 | $192,500 |
2. Rubius Therapeutics, Inc. (RUBY)
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-07-22 | MURA | Sale | 2,572 | 2.48 | 6,378 |
| 2025-07-18 | MURA | Sale | 2,158 | 2.48 | 5,351 |
| 2025-03-05 | MURA | Sale | 1,469 | 3.45 | 5,068 |
| 2025-03-04 | MURA | Sale | 1,262 | 3.36 | 4,240 |
| 2024-07-18 | MURA | Sale | 2,157 | 3.41 | 7,355 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2022-02-01 | RUBY | Sale | 2,732 | 6.57 | 17,957 |
| 2022-01-29 | RUBY | Option Ex | 8,075 | .00 | 0 |
| 2021-03-15 | RUBY | Sale | 25,000 | 20.24 | 505,975 |
| 2021-03-15 | RUBY | Option Ex | 25,000 | 7.70 | 192,500 |
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 Keson-brookes Maiken (See Remarks of Mural Oncology Plc at the time of this reporting) see the Securities and Exchange Commission (SEC) website.