Merck & Co., Inc. (MRK)
NYSE: MRK · Real-Time Price · USD
78.56
+0.96 (1.24%)
At close: Sep 26, 2025, 4:00 PM EDT
78.66
+0.10 (0.13%)
After-hours: Sep 26, 2025, 7:59 PM EDT
Merck & Co. Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 26, 2025 | 78.76 | 78.96 | 77.69 | 78.56 | 78.56 | 1.24% | 12,138,701 |
| Sep 25, 2025 | 79.78 | 79.88 | 77.58 | 77.60 | 77.60 | -2.60% | 14,923,785 |
| Sep 24, 2025 | 79.90 | 80.12 | 79.33 | 79.67 | 79.67 | -0.36% | 11,804,176 |
| Sep 23, 2025 | 80.09 | 81.11 | 79.67 | 79.96 | 79.96 | -0.55% | 13,145,294 |
| 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% | 10,458,876 |
| 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% | 10,229,754 |
| Sep 12, 2025 | 84.62 | 85.18 | 82.80 | 82.81 | 81.99 | -2.75% | 9,939,451 |
| Sep 11, 2025 | 84.34 | 85.55 | 84.00 | 85.15 | 84.31 | 1.33% | 9,667,174 |
| Sep 10, 2025 | 84.27 | 84.57 | 83.54 | 84.03 | 83.20 | -0.69% | 13,073,268 |
| Sep 9, 2025 | 84.18 | 84.80 | 84.13 | 84.61 | 83.77 | 0.62% | 9,767,468 |
| Sep 8, 2025 | 84.16 | 84.32 | 82.82 | 84.09 | 83.26 | -0.73% | 13,111,165 |
| Sep 5, 2025 | 83.79 | 85.27 | 83.25 | 84.71 | 83.87 | 0.79% | 13,231,140 |
| Sep 4, 2025 | 84.20 | 84.41 | 83.00 | 84.05 | 83.22 | -0.15% | 12,554,844 |
| Sep 3, 2025 | 85.37 | 85.81 | 84.07 | 84.18 | 83.35 | -1.52% | 12,169,436 |
| Sep 2, 2025 | 84.50 | 85.50 | 84.34 | 85.48 | 84.63 | 1.62% | 11,642,713 |
| Aug 29, 2025 | 83.42 | 84.24 | 83.28 | 84.12 | 83.29 | 1.09% | 10,872,919 |
| Aug 28, 2025 | 84.25 | 84.25 | 82.65 | 83.21 | 82.39 | -1.02% | 14,485,303 |
| Aug 27, 2025 | 85.07 | 85.48 | 83.88 | 84.07 | 83.24 | -1.08% | 10,588,086 |
| Aug 26, 2025 | 85.56 | 85.59 | 84.67 | 84.99 | 84.15 | -0.38% | 14,062,690 |
| Aug 25, 2025 | 87.21 | 87.39 | 84.95 | 85.31 | 84.47 | -2.36% | 9,417,659 |
| Aug 22, 2025 | 87.50 | 87.84 | 86.76 | 87.37 | 86.51 | 1.50% | 11,977,434 |
| Aug 21, 2025 | 84.88 | 87.32 | 84.60 | 86.08 | 85.23 | 1.68% | 13,889,005 |
| Aug 20, 2025 | 85.31 | 86.25 | 84.55 | 84.66 | 83.82 | -0.32% | 8,904,738 |
| Aug 19, 2025 | 84.38 | 85.80 | 84.38 | 84.93 | 84.09 | 0.84% | 14,307,713 |
| Aug 18, 2025 | 84.26 | 85.15 | 84.08 | 84.22 | 83.39 | 0.01% | 8,273,573 |
| Aug 15, 2025 | 83.72 | 84.74 | 83.36 | 84.21 | 83.38 | 1.75% | 10,481,384 |
| Aug 14, 2025 | 82.01 | 83.40 | 81.60 | 82.76 | 81.94 | 0.06% | 10,217,602 |
| Aug 13, 2025 | 80.75 | 82.84 | 80.20 | 82.71 | 81.89 | 3.00% | 11,043,794 |
| Aug 12, 2025 | 80.47 | 80.94 | 79.67 | 80.30 | 79.51 | 0.34% | 7,857,120 |
| Aug 11, 2025 | 80.96 | 81.64 | 79.63 | 80.03 | 79.24 | -0.82% | 8,210,702 |
| Aug 8, 2025 | 80.12 | 81.17 | 80.12 | 80.69 | 79.89 | 0.40% | 6,882,894 |
| Aug 7, 2025 | 79.65 | 80.82 | 78.65 | 80.37 | 79.57 | 1.17% | 10,830,075 |
| Aug 6, 2025 | 80.29 | 81.32 | 79.27 | 79.44 | 78.65 | -1.67% | 13,028,688 |
| Aug 5, 2025 | 79.90 | 81.13 | 79.57 | 80.79 | 79.99 | 1.16% | 9,984,272 |
| Aug 4, 2025 | 79.06 | 79.99 | 78.43 | 79.86 | 79.07 | 0.72% | 13,380,721 |
| Aug 1, 2025 | 78.02 | 79.87 | 77.53 | 79.29 | 78.51 | 1.50% | 11,900,297 |
| Jul 31, 2025 | 80.80 | 81.49 | 77.85 | 78.12 | 77.35 | -4.44% | 19,813,303 |
| Jul 30, 2025 | 82.91 | 83.58 | 81.52 | 81.75 | 80.94 | -1.06% | 13,055,190 |
| Jul 29, 2025 | 79.85 | 82.89 | 76.66 | 82.63 | 81.81 | -1.70% | 27,826,419 |
| Jul 28, 2025 | 84.47 | 84.97 | 83.87 | 84.06 | 83.23 | -0.77% | 12,881,971 |
| Jul 25, 2025 | 84.16 | 85.22 | 83.84 | 84.71 | 83.87 | 0.71% | 10,058,807 |
| Jul 24, 2025 | 84.20 | 84.51 | 83.52 | 84.11 | 83.28 | 0.15% | 8,016,947 |
| Jul 23, 2025 | 82.62 | 84.14 | 82.41 | 83.98 | 83.15 | 2.90% | 11,542,091 |
| Jul 22, 2025 | 79.87 | 81.77 | 79.87 | 81.61 | 80.80 | 2.90% | 10,570,988 |
| Jul 21, 2025 | 80.16 | 80.31 | 78.95 | 79.31 | 78.53 | -0.81% | 11,620,844 |
| Jul 18, 2025 | 81.70 | 81.92 | 79.86 | 79.96 | 79.17 | -1.91% | 11,823,603 |