The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Oosthuizen Johannes Jacobus since 2022.
This trader's CIK number is 1916310.
At the time of last reporting, Oosthuizen Johannes Jacobus was the President, U.S. Market of Merck & Co., Inc.. (stock ticker symbol MRK).
Also see all insider trading activities at Merck & Co., Inc..
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | MRK | 0 | $0 | 8,500 | $714,748 | 13,002 | $1,134,814 |
| 2024 | MRK | 0 | $0 | 18,959 | $2,411,110 | 21,849 | $1,764,659 |
| 2023 | MRK | 0 | $0 | 2,081 | $213,061 | 2,688 | $301,302 |
| 2022 | MRK | 0 | $0 | 47,356 | $4,717,259 | 55,289 | $223,557 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-02-19 | MRK | Sale | 8,500 | 84.09 | 714,748 |
| 2025-02-08 | MRK | Option Ex | 13,002 | 87.28 | 1,134,814 |
| 2024-05-04 | MRK | Option Ex | 912 | 127.51 | 116,289 |
| 2024-02-02 | MRK | Option Ex | 20,937 | 78.73 | 1,648,370 |
| 2024-02-02 | MRK | Sale | 18,959 | 127.17 | 2,411,110 |
| 2023-11-09 | MRK | Sale | 2,081 | 102.38 | 213,061 |
| 2023-10-30 | MRK | Option Ex | 915 | 102.82 | 94,080 |
| 2023-05-04 | MRK | Option Ex | 907 | 118.22 | 107,225 |
| 2023-05-01 | MRK | Option Ex | 866 | 115.47 | 99,997 |
| 2022-11-09 | MRK | Sale | 1,795 | 103.21 | 185,261 |
| 2022-11-07 | MRK | Option Ex | 52,743 | .00 | 0 |
| 2022-11-07 | MRK | Sale | 45,561 | 99.47 | 4,531,998 |
| 2022-05-04 | MRK | Option Ex | 907 | 87.10 | 78,999 |
| 2022-05-03 | MRK | Option Ex | 773 | 87.65 | 67,753 |
| 2022-05-01 | MRK | Option Ex | 866 | 88.69 | 76,805 |
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 Oosthuizen Johannes Jacobus (President, U.S. Market of Merck & Co., Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.