The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Berkman Charles S since 2015.
This trader's CIK number is 1392266.
At the time of last reporting, Berkman Charles S was the Chief Legal Officer of Omniab, Inc.. (stock ticker symbol OABI).
Also see all insider trading activities at Omniab, Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2021 | LGND | 0 | $0 | 18,097 | $3,230,368 | 0 | $0 |
| 2020 | LGND | 0 | $0 | 11,146 | $1,321,770 | 0 | $0 |
| 2019 | LGND | 0 | $0 | 0 | $0 | 3,943 | $222,600 |
| 2018 | LGND | 0 | $0 | 22,230 | $5,656,245 | 31,530 | $1,614,010 |
| 2017 | LGND | 0 | $0 | 18,625 | $2,364,667 | 0 | $0 |
| 2015 | LGND | 126 | $5,698 | 25,331 | $2,233,329 | 20,331 | $321,339 |
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | OABI | 0 | $0 | 56,209 | $169,618 | 58,319 | $0 |
| 2024 | OABI | 0 | $0 | 14,976 | $69,777 | 68,040 | $0 |
| 2023 | OABI | 0 | $0 | 0 | $0 | 15,622 | $0 |
1. Ligand Pharmaceuticals Inc (LGND)
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2021-02-04 | LGND | Sale | 18,097 | 178.50 | 3,230,368 |
| 2020-06-04 | LGND | Sale | 11,146 | 118.59 | 1,321,770 |
| 2019-08-05 | LGND | Option Ex | 1,093 | 71.03 | 77,630 |
| 2019-01-10 | LGND | Option Ex | 2,850 | 50.87 | 144,970 |
| 2018-12-17 | LGND | Option Ex | 3,400 | 21.92 | 74,528 |
| 2018-10-24 | LGND | Option Ex | 3,900 | 18.20 | 70,960 |
| 2018-10-11 | LGND | Option Ex | 2,000 | 14.47 | 28,940 |
| 2018-09-17 | LGND | Option Ex | 2,813 | 100.38 | 282,368 |
| 2018-09-17 | LGND | Sale | 2,813 | 250.69 | 705,182 |
| 2018-09-04 | LGND | Sale | 19,417 | 254.99 | 4,951,063 |
| 2018-09-04 | LGND | Option Ex | 19,417 | 59.60 | 1,157,214 |
| 2017-08-09 | LGND | Sale | 18,625 | 126.96 | 2,364,667 |
| 2015-07-10 | LGND | Sale | 14,067 | 99.06 | 1,393,519 |
| 2015-07-13 | LGND | Option Ex | 1,000 | 53.10 | 53,100 |
| 2015-07-10 | LGND | Option Ex | 14,067 | 12.26 | 172,461 |
| 2015-03-16 | LGND | Option Ex | 5,264 | 18.20 | 95,778 |
| 2015-03-16 | LGND | Sale | 11,264 | 74.56 | 839,810 |
| 2014-12-31 | LGND | Buy | 126 | 45.23 | 5,698 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-12-08 | OABI | Sale | 8,044 | 1.96 | 15,766 |
| 2025-12-07 | OABI | Option Ex | 15,621 | .00 | 0 |
| 2025-04-07 | OABI | Sale | 7,206 | 2.00 | 14,412 |
| 2025-04-07 | OABI | Option Ex | 13,542 | .00 | 0 |
| 2025-02-16 | OABI | Option Ex | 13,541 | .00 | 0 |
| 2025-02-18 | OABI | Sale | 8,215 | 3.68 | 30,231 |
| 2025-02-19 | OABI | Sale | 7,255 | 3.67 | 26,625 |
| 2025-02-15 | OABI | Option Ex | 15,615 | .00 | 0 |
| 2025-01-21 | OABI | Sale | 25,489 | 3.24 | 82,584 |
| 2024-12-09 | OABI | Sale | 8,022 | 4.13 | 33,130 |
| 2024-12-07 | OABI | Option Ex | 15,621 | .00 | 0 |
| 2024-04-07 | OABI | Option Ex | 13,541 | .00 | 0 |
| 2024-04-08 | OABI | Sale | 6,954 | 5.27 | 36,647 |
| 2024-02-15 | OABI | Option Ex | 21,322 | .00 | 0 |
| 2024-01-02 | OABI | Option Ex | 17,556 | .00 | 0 |
| 2023-12-07 | OABI | Option Ex | 15,622 | .00 | 0 |
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 Berkman Charles S (Chief Legal Officer of Omniab, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.