The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Porter Derrell since 2018.
This trader's CIK number is 1706400.
At the time of last reporting, Porter Derrell was the Director of Acumen Pharmaceuticals, Inc.. (stock ticker symbol ABOS).
Also see all insider trading activities at Acumen Pharmaceuticals, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2026 | ABOS | 0 | $0 | 32,300 | $75,238 | 19,500 | $20,864 |
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2019 | ATRA | 0 | $0 | 5,909 | $236,360 | 4,000 | $57,200 |
| 2018 | ATRA | 0 | $0 | 17,878 | $797,347 | 16,334 | $233,576 |
1. Acumen Pharmaceuticals, Inc. (ABOS)
2. Atara Biotherapeutics, Inc. (ATRA)
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2026-06-17 | ABOS | Sale | 13,040 | 2.33 | 30,318 |
| 2026-06-15 | ABOS | Option Ex | 6,460 | 1.07 | 6,912 |
| 2026-06-15 | ABOS | Sale | 6,460 | 2.35 | 15,148 |
| 2026-06-17 | ABOS | Option Ex | 13,040 | 1.07 | 13,952 |
| 2026-06-16 | ABOS | Sale | 12,800 | 2.33 | 29,772 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2019-02-15 | ATRA | Sale | 5,909 | 40.00 | 236,360 |
| 2019-02-15 | ATRA | Option Ex | 4,000 | 14.30 | 57,200 |
| 2018-05-15 | ATRA | Sale | 16,334 | 45.02 | 735,356 |
| 2018-05-15 | ATRA | Option Ex | 16,334 | 14.30 | 233,576 |
| 2018-05-08 | ATRA | Sale | 1,544 | 40.15 | 61,991 |
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 Porter Derrell (Director of Acumen Pharmaceuticals, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.