Merck & Co. Inc. (MRK)
NYSE: MRK
· Real-Time Price · USD
89.17
-0.34 (-0.38%)
At close: Oct 03, 2025, 3:59 PM
89.20
0.03%
After-hours: Oct 03, 2025, 07:57 PM EDT
MRK Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj Close | % Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 3, 2025 | 89.63 | 90.70 | 88.10 | 89.19 | 89.19 | -0.36% | 12,937,849 |
| Oct 2, 2025 | 89.95 | 91.00 | 88.22 | 89.51 | 89.51 | -0.69% | 14,575,400 |
| Oct 1, 2025 | 85.19 | 90.75 | 85.19 | 90.13 | 90.13 | 7.39% | 33,460,900 |
| Sep 30, 2025 | 78.42 | 84.00 | 78.40 | 83.93 | 83.93 | 6.81% | 21,636,633 |
| Sep 29, 2025 | 78.60 | 78.80 | 78.03 | 78.58 | 78.58 | 0.03% | 12,739,025 |
| Sep 26, 2025 | 78.76 | 78.96 | 77.69 | 78.56 | 78.56 | 1.24% | 12,205,423 |
| Sep 25, 2025 | 79.78 | 79.88 | 77.58 | 77.60 | 77.60 | -2.60% | 14,923,800 |
| Sep 24, 2025 | 79.90 | 80.11 | 79.33 | 79.67 | 79.67 | -0.36% | 11,804,200 |
| Sep 23, 2025 | 80.09 | 81.11 | 79.67 | 79.96 | 79.96 | -0.55% | 13,145,300 |
| Sep 22, 2025 | 81.76 | 81.94 | 80.26 | 80.40 | 80.40 | -1.36% | 11,986,448 |
| Sep 19, 2025 | 81.81 | 82.40 | 81.00 | 81.51 | 81.51 | -0.02% | 25,627,814 |
| Sep 18, 2025 | 81.22 | 81.69 | 80.82 | 81.53 | 81.53 | 0.48% | 10,458,900 |
| Sep 17, 2025 | 80.98 | 82.25 | 80.80 | 81.14 | 81.14 | 0.06% | 12,642,100 |
| Sep 16, 2025 | 81.01 | 81.48 | 80.54 | 81.09 | 81.09 | 0.09% | 10,065,901 |
| Sep 15, 2025 | 82.11 | 82.75 | 80.92 | 81.02 | 81.02 | -2.16% | 10,229,800 |
| Sep 12, 2025 | 84.62 | 85.18 | 82.80 | 82.81 | 82.00 | -2.75% | 9,939,500 |
| Sep 11, 2025 | 84.34 | 85.55 | 84.00 | 85.15 | 84.32 | 1.33% | 9,667,200 |
| Sep 10, 2025 | 84.27 | 84.57 | 83.54 | 84.03 | 83.21 | -0.69% | 13,073,300 |
| Sep 9, 2025 | 84.18 | 84.80 | 84.13 | 84.61 | 83.78 | 0.62% | 9,767,500 |
| Sep 8, 2025 | 84.16 | 84.32 | 82.82 | 84.09 | 83.27 | -0.73% | 13,111,200 |
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