We provide you with 20 years of free, institutional-grade data for MRK stock, allowing you to gain comprehensive visibility into the fundamentals of the company. This in-depth information is essential for making informed investment decisions and understanding the financial health and performance of MRK. Explore the full financial landscape of MRK stock.
Total insider purchase within 3 month on this page: $0
Total insider selling within 3 month on this page: -$2,597,217
| Name | Action | Shares | Avg Price | Amount | Reported Date |
|---|---|---|---|---|---|
| Maraldo David R. | Sale | -159 | $112.16 | $17,833 | 2026-05-05 |
| Maraldo David R. | Derivatives Exercise | 552 | 2026-05-05 | ||
| Maraldo David R. | RSU | 552 | 2026-05-05 | ||
| Smart Dalton E. III | Sale | -132 | $112.16 | $14,805 | 2026-05-05 |
| Smart Dalton E. III | Derivatives Exercise | 383 | 2026-05-05 | ||
| Smart Dalton E. III | RSU | 383 | 2026-05-05 | ||
| Maraldo David R. | Initial | 2026-05-04 | |||
| Chattopadhyay Sanat | Sale | -1,130 | $110.03 | $124,334 | 2026-05-01 |
| Chattopadhyay Sanat | Derivatives Exercise | 2,597 | 2026-05-01 | ||
| Chattopadhyay Sanat | RSU | 2,597 | 2026-05-01 | ||
| DeLuca Richard R. | Sale | -1,241 | $110.03 | $136,547 | 2026-05-01 |
| DeLuca Richard R. | Derivatives Exercise | 2,518 | 2026-05-01 | ||
| DeLuca Richard R. | RSU | 2,518 | 2026-05-01 | ||
| Williams David Michael | Sale | -679 | $110.03 | $74,710 | 2026-05-01 |
| Williams David Michael | Derivatives Exercise | 1,377 | 2026-05-01 | ||
| Williams David Michael | RSU | 1,377 | 2026-05-01 | ||
| Smart Dalton E. III | Sale | -483 | $110.03 | $53,144 | 2026-05-01 |
| Smart Dalton E. III | Derivatives Exercise | 1,408 | 2026-05-01 | ||
| Smart Dalton E. III | RSU | 1,408 | 2026-05-01 | ||
| Li Dean Y | Sale | -2,326 | $110.03 | $255,930 | 2026-05-01 |
| Li Dean Y | Derivatives Exercise | 4,722 | 2026-05-01 | ||
| Li Dean Y | RSU | 4,722 | 2026-05-01 | ||
| Zachary Jennifer | Sale | -1,454 | $110.03 | $159,984 | 2026-05-01 |
| Zachary Jennifer | Derivatives Exercise | 2,951 | 2026-05-01 | ||
| Zachary Jennifer | RSU | 2,951 | 2026-05-01 | ||
| Larson Betty D | Sale | -5,858 | $110.03 | $644,556 | 2026-05-01 |
| Larson Betty D | Derivatives Exercise | 13,435 | 2026-05-01 | ||
| Larson Betty D | RSU | 13,435 | 2026-05-01 | ||
| Litchfield Caroline | Sale | -1,938 | $110.03 | $213,238 | 2026-05-01 |
| Litchfield Caroline | Derivatives Exercise | 3,935 | 2026-05-01 | ||
| Litchfield Caroline | RSU | 3,935 | 2026-05-01 | ||
| Davis Robert M | Sale | -6,551 | $110.03 | $720,807 | 2026-05-01 |
| Davis Robert M | Derivatives Exercise | 13,300 | 2026-05-01 | ||
| Davis Robert M | RSU | 13,300 | 2026-05-01 | ||
| Oosthuizen Johannes Jacobus | Sale | -679 | $110.03 | $74,710 | 2026-05-01 |
| Oosthuizen Johannes Jacobus | Derivatives Exercise | 1,377 | 2026-05-01 | ||
| Oosthuizen Johannes Jacobus | RSU | 1,377 | 2026-05-01 | ||
| Guindo Chirfi | Sale | -969 | $110.03 | $106,619 | 2026-05-01 |
| Guindo Chirfi | Derivatives Exercise | 1,967 | 2026-05-01 | ||
| Guindo Chirfi | RSU | 1,967 | 2026-05-01 | ||
| Guindo Chirfi | Sale | -10,000 | $121.46 | $1,214,562 | 2026-02-12 |
| Li Dean Y | Sale | -10,235 | $117.52 | $1,202,844 | 2026-02-10 |
| Guindo Chirfi | Sale | -10,000 | $118.41 | $1,184,101 | 2026-02-09 |
| Zachary Jennifer | Sale | -121,573 | $119.15 | $14,485,690 | 2026-02-09 |
| Zachary Jennifer | Derivatives Exercise | 121,573 | 2026-02-09 | ||
| Williams David Michael | Sale | -5,000 | $121.91 | $609,525 | 2026-02-06 |
| Williams David Michael | Derivatives Exercise | 5,000 | 2026-02-06 | ||
| Smart Dalton E. III | Sale | -6,400 | $119.67 | $765,920 | 2026-02-06 |
| Smart Dalton E. III | Derivatives Exercise | 4,000 | 2026-02-06 | ||
| Oosthuizen Johannes Jacobus | Sale | -15,000 | $121.87 | $1,827,992 | 2026-02-06 |
| Litchfield Caroline | Sale | -41,997 | $119.61 | $5,023,312 | 2026-02-06 |
| Litchfield Caroline | Derivatives Exercise | 41,997 | 2026-02-06 | ||
| Li Dean Y | Sale | -15,087 | $118.77 | $1,791,824 | 2026-02-06 |
| Li Dean Y | Derivatives Exercise | 15,087 | 2026-02-06 | ||
| Downing Cristal N | Sale | -7,085 | $87 | $616,395 | 2025-11-12 |
| Williams David Michael | Sale | -8,614 | $83.59 | $720,040 | 2025-11-04 |
| Williams David Michael | Sale | -8,432 | $79.29 | $668,573 | 2025-08-05 |
| Williams David Michael | Derivatives Exercise | 17,119 | 2025-08-05 | ||
| Williams David Michael | RSU | 17,119 | 2025-08-05 | ||
| Guindo Chirfi | Sale | -18,175 | $79.29 | $1,441,096 | 2025-08-05 |
| Guindo Chirfi | Derivatives Exercise | 36,903 | 2025-08-05 | ||
| Guindo Chirfi | RSU | 36,903 | 2025-08-05 | ||
| Smart Dalton E. III | Sale | -844 | $83.18 | $70,204 | 2025-05-05 |
| Smart Dalton E. III | Derivatives Exercise | 2,050 | 2025-05-05 | ||
| Smart Dalton E. III | RSU | 2,050 | 2025-05-05 | ||
| Romanelli Joseph | Sale | -2,132 | $84.71 | $180,602 | 2025-05-02 |
| Romanelli Joseph | Derivatives Exercise | 4,325 | 2025-05-02 | ||
| Romanelli Joseph | RSU | 4,325 | 2025-05-02 | ||
| Smart Dalton E. III | Sale | -290 | $84.71 | $24,566 | 2025-05-02 |
| Smart Dalton E. III | Derivatives Exercise | 845 | 2025-05-02 | ||
| Smart Dalton E. III | RSU | 845 | 2025-05-02 | ||
| Larson Betty D | Sale | -5,153 | $84.71 | $436,511 | 2025-05-02 |
| Larson Betty D | Derivatives Exercise | 11,350 | 2025-05-02 | ||
| Larson Betty D | RSU | 11,350 | 2025-05-02 | ||
| Smart Dalton E. III | Sale | -4,262 | $82.76 | $352,723 | 2025-04-29 |
| Smart Dalton E. III | Derivatives Exercise | 5,000 | 2025-04-29 | ||
| Oosthuizen Johannes Jacobus | Sale | -8,500 | $84.09 | $714,745 | 2025-02-20 |
| Williams David Michael | Sale | -6,000 | $85.34 | $512,057 | 2025-02-13 |
| Oosthuizen Johannes Jacobus | Sale | -6,404 | $87.28 | $558,941 | 2025-02-11 |
| Oosthuizen Johannes Jacobus | Derivatives Exercise | 13,002 | 2025-02-11 | ||
| Oosthuizen Johannes Jacobus | RSU | 13,002 | 2025-02-11 | ||
| Downing Cristal N | Sale | -2,361 | $88.76 | $209,551 | 2025-02-07 |
| BAKER DOUGLAS M JR | Open Market Purchase | 15,000 | $88.5 | 2025-02-07 | |
| THULIN INGE G | Open Market Purchase | 2,832 | $88.25 | 2025-02-07 | |
| Li Dean Y | Grant, award...etc | 32,621 | $97.94 | 2025-01-29 | |
| Litchfield Caroline | Grant, award...etc | 23,432 | $97.94 | 2025-01-29 | |
| Downing Cristal N | Grant, award...etc | 9,446 | $97.94 | 2025-01-29 | |
| DeLuca Richard R. | Grant, award...etc | 25,438 | $97.94 | 2025-01-29 | |
| Davis Robert M | Grant, award...etc | 95,275 | $97.94 | 2025-01-29 | |
| Chattopadhyay Sanat | Grant, award...etc | 28,136 | $97.94 | 2025-01-29 | |
| Guindo Chirfi | Grant, award...etc | 28,158 | $97.94 | 2025-01-29 | |
| Smart Dalton | Grant, award...etc | 2,586 | $97.94 | 2025-01-29 | |
| Williams David Michael | Grant, award...etc | 10,246 | $97.94 | 2025-01-29 | |
| Zachary Jennifer | Grant, award...etc | 25,423 | $97.94 | 2025-01-29 | |
| Oosthuizen Johannes Jacobus | Grant, award...etc | 8,664 | $97.94 | 2025-01-29 | |
| Karsanbhai Surendralal Lanca | Initial | 2025-01-03 |
The information provided in this report about MRK stock is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.
Merck & Co.(NYSE:MRK) 
Merck & Co., Inc. operates as a healthcare company worldwide. It operates through two segments, Pharmaceutical and Animal Health segments. The Pharmaceutical segment offers human health pharmaceutical products in the areas of oncology, hospital acute care, immunology, neuroscience, virology, cardiov...
Website: http://www.merck.com
Founded: 1891
Full Time Employees: 71,000
Sector: Healthcare
Industry: Drug Manufacturers-General
