MERCK & CO. INC. (MRK) Stock Ownership
USA • New York Stock Exchange • NYSE:MRK • US58933Y1055
110.27 USD
+1.93 (+1.78%)
At close: Jan 30, 2026
110.6 USD
+0.33 (+0.3%)
Pre-Market: 2/2/2026, 4:41:55 AM
| Shares Outstanding | 2.48B |
| Float | 2.48B |
| Float Short Interest Percentage | 1.31% |
| Owners (insider) | 0.05% |
| Owners (institutional) | 80.32% |
| Owners (insider) change | 4.53% |
| Owners (institutional) change | -2.27% |
Insider Transactions
Top Institutional Holders
Insider Owners
| Date | Name | Type | Shares | Price | Amount |
|---|---|---|---|---|---|
| Jan 26, 2026 | Davis Robert M | Grant | 47434 | 107.40 | $ 5,094,411.60 |
| Jan 26, 2026 | Chattopadhyay Sanat | Grant | 13880 | 107.40 | $ 1,490,712.00 |
| Jan 26, 2026 | Williams David Michael | Grant | 6112 | 107.40 | $ 656,428.80 |
| Jan 26, 2026 | Smart Dalton | Grant | 1066 | 107.40 | $ 114,488.40 |
| Jan 26, 2026 | Romanelli Joseph | Grant | 5703 | 107.40 | $ 612,502.20 |
| Jan 26, 2026 | Oosthuizen Johannes Jacobus | Grant | 5026 | 107.40 | $ 539,792.40 |
| Jan 26, 2026 | Litchfield Caroline | Grant | 15852 | 107.40 | $ 1,702,504.80 |
| Jan 26, 2026 | Li Dean Y | Grant | 20469 | 107.40 | $ 2,198,370.60 |
| Jan 26, 2026 | Guindo Chirfi | Grant | 9865 | 107.40 | $ 1,059,501.00 |
| Jan 26, 2026 | DeLuca Richard R. | Grant | 12264 | 107.40 | $ 1,317,153.60 |
| Jan 26, 2026 | Zachary Jennifer | Grant | 11583 | 107.40 | $ 1,244,014.20 |
| Nov 10, 2025 | Downing Cristal N | Open Market Sale | 7085 | 87.00 | $ 616,395.00 |
| Nov 3, 2025 | Williams David Michael | Open Market Sale | 8614 | 83.59 | $ 720,039.95 |
| May 3, 2025 | Smart Dalton | Option Excercise | 2050 | 83.18 | $ 170,519.00 |
| May 3, 2025 | Smart Dalton | Option Excercise | 844 | 83.18 | $ 70,203.92 |
| Apr 30, 2025 | Smart Dalton | Option Excercise | 845 | 84.06 | $ 71,027.50 |
| Apr 30, 2025 | Smart Dalton | Option Excercise | 290 | 84.06 | $ 24,375.95 |
| Apr 30, 2025 | Romanelli Joseph | Option Excercise | 4325 | 83.95 | $ 363,090.85 |
| Apr 30, 2025 | Romanelli Joseph | Option Excercise | 2132 | 83.95 | $ 178,984.97 |
| Apr 30, 2025 | Larson Betty D | Option Excercise | 11350 | 84.71 | $ 961,458.50 |
| Apr 30, 2025 | Larson Betty D | Option Excercise | 5153 | 84.71 | $ 436,510.63 |
| Apr 25, 2025 | Smart Dalton | Option Excercise | 5000 | 58.08 | $ 290,400.00 |
| Apr 25, 2025 | Smart Dalton | Open Market Sale | 4262 | 82.76 | $ 352,723.12 |
| Feb 19, 2025 | Oosthuizen Johannes Jacobus | Open Market Sale | 8500 | 84.09 | $ 714,744.60 |
| Feb 13, 2025 | Williams David Michael | Open Market Sale | 6000 | 85.34 | $ 512,056.80 |
| Feb 8, 2025 | Oosthuizen Johannes Jacobus | Option Excercise | 13002 | 87.28 | $ 1,134,814.56 |
| Feb 8, 2025 | Oosthuizen Johannes Jacobus | Option Excercise | 6404 | 87.28 | $ 558,941.12 |
| Feb 6, 2025 | Downing Cristal N | Open Market Sale | 2361 | 88.76 | $ 209,550.79 |
| Feb 6, 2025 | THULIN INGE G | Open Market Purchase | 2833 | 88.25 | $ 250,012.25 |
| Feb 5, 2025 | BAKER DOUGLAS M JR | Open Market Purchase | 15000 | 88.50 | $ 1,327,500.00 |