Merck & Co., Inc. (MRK)
NYSE: MRK · Real-Time Price · USD
99.72
-1.17 (-1.16%)
At close: Dec 5, 2025, 4:00 PM EST
99.80
+0.08 (0.08%)
After-hours: Dec 5, 2025, 7:59 PM EST
Merck & Co. Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Dec 5, 2025 | 101.40 | 102.09 | 99.19 | 99.72 | 99.72 | -1.16% | 15,902,635 |
| Dec 4, 2025 | 102.10 | 102.60 | 100.54 | 100.89 | 100.89 | -1.35% | 12,744,044 |
| Dec 3, 2025 | 101.90 | 103.09 | 101.52 | 102.27 | 102.27 | 1.23% | 12,533,742 |
| Dec 2, 2025 | 101.53 | 101.80 | 100.31 | 101.03 | 101.03 | -0.79% | 11,788,092 |
| Dec 1, 2025 | 104.72 | 105.68 | 101.71 | 101.83 | 101.83 | -2.86% | 14,171,099 |
| Nov 28, 2025 | 104.84 | 105.41 | 104.12 | 104.83 | 104.83 | 0.19% | 5,956,900 |
| Nov 26, 2025 | 104.60 | 105.75 | 104.20 | 104.63 | 104.63 | -0.97% | 12,231,679 |
| Nov 25, 2025 | 100.73 | 105.84 | 100.71 | 105.66 | 105.66 | 5.24% | 21,990,439 |
| Nov 24, 2025 | 99.12 | 102.36 | 99.12 | 100.40 | 100.40 | 2.70% | 27,932,754 |
| Nov 21, 2025 | 95.48 | 100.27 | 95.36 | 97.76 | 97.76 | 2.94% | 23,036,665 |
| Nov 20, 2025 | 94.97 | 96.00 | 93.90 | 94.97 | 94.97 | -0.08% | 12,546,084 |
| Nov 19, 2025 | 96.00 | 97.14 | 94.09 | 95.05 | 95.05 | -1.43% | 14,641,308 |
| Nov 18, 2025 | 94.11 | 97.66 | 92.11 | 96.43 | 96.43 | 3.84% | 28,153,549 |
| Nov 17, 2025 | 93.23 | 94.75 | 92.68 | 92.86 | 92.86 | -0.06% | 14,345,822 |
| Nov 14, 2025 | 92.20 | 95.08 | 91.49 | 92.92 | 92.92 | -0.01% | 19,632,021 |
| Nov 13, 2025 | 91.31 | 94.26 | 90.90 | 92.93 | 92.93 | 1.62% | 16,086,082 |
| Nov 12, 2025 | 91.41 | 92.91 | 91.16 | 91.45 | 91.45 | 0.55% | 13,218,933 |
| Nov 11, 2025 | 87.35 | 91.07 | 87.26 | 90.95 | 90.95 | 4.84% | 15,436,039 |
| Nov 10, 2025 | 86.69 | 87.37 | 85.80 | 86.75 | 86.75 | 0.54% | 8,319,573 |
| Nov 7, 2025 | 85.95 | 86.59 | 85.24 | 86.28 | 86.28 | 0.58% | 9,214,301 |
| Nov 6, 2025 | 84.48 | 86.17 | 84.35 | 85.78 | 85.78 | 1.65% | 10,601,445 |
| Nov 5, 2025 | 84.03 | 85.38 | 82.91 | 84.39 | 84.39 | 0.63% | 9,440,157 |
| Nov 4, 2025 | 82.70 | 84.96 | 82.01 | 83.86 | 83.86 | 1.66% | 12,846,087 |
| Nov 3, 2025 | 85.77 | 86.10 | 82.34 | 82.49 | 82.49 | -4.06% | 13,875,806 |
| Oct 31, 2025 | 85.42 | 86.46 | 84.56 | 85.98 | 85.98 | -0.35% | 12,384,986 |
| Oct 30, 2025 | 84.62 | 87.30 | 83.30 | 86.28 | 86.28 | -0.35% | 16,678,844 |
| Oct 29, 2025 | 86.95 | 87.84 | 86.07 | 86.58 | 86.58 | -0.52% | 10,921,908 |
| Oct 28, 2025 | 88.11 | 88.11 | 86.93 | 87.03 | 87.03 | -1.10% | 8,345,943 |
| Oct 27, 2025 | 87.51 | 88.30 | 87.03 | 88.00 | 88.00 | 0.58% | 7,226,555 |
| Oct 24, 2025 | 87.33 | 88.06 | 87.11 | 87.49 | 87.49 | 0.36% | 7,902,072 |
| Oct 23, 2025 | 87.56 | 88.11 | 86.91 | 87.18 | 87.18 | -0.49% | 7,687,450 |
| Oct 22, 2025 | 87.68 | 88.79 | 87.01 | 87.61 | 87.61 | -0.01% | 10,926,343 |
| Oct 21, 2025 | 86.96 | 87.67 | 86.23 | 87.62 | 87.62 | 1.51% | 9,852,403 |
| Oct 20, 2025 | 85.25 | 87.00 | 85.03 | 86.32 | 86.32 | 1.80% | 8,611,782 |
| Oct 17, 2025 | 83.28 | 84.89 | 83.16 | 84.79 | 84.79 | 1.04% | 10,758,923 |
| Oct 16, 2025 | 84.41 | 85.50 | 83.60 | 83.92 | 83.92 | -0.23% | 11,709,057 |
| Oct 15, 2025 | 84.19 | 84.69 | 83.61 | 84.11 | 84.11 | -0.70% | 9,168,705 |
| Oct 14, 2025 | 85.38 | 85.68 | 84.15 | 84.70 | 84.70 | -1.17% | 9,675,036 |
| Oct 13, 2025 | 85.66 | 86.46 | 85.24 | 85.70 | 85.70 | -0.34% | 6,553,942 |
| Oct 10, 2025 | 87.94 | 88.24 | 85.92 | 85.99 | 85.99 | -1.73% | 11,230,694 |
| Oct 9, 2025 | 86.96 | 87.80 | 86.64 | 87.50 | 87.50 | 1.27% | 10,938,196 |
| Oct 8, 2025 | 87.93 | 87.93 | 86.20 | 86.40 | 86.40 | -1.38% | 9,696,200 |
| Oct 7, 2025 | 88.67 | 88.94 | 87.14 | 87.61 | 87.61 | -1.34% | 9,449,085 |
| Oct 6, 2025 | 88.83 | 90.31 | 88.55 | 88.80 | 88.80 | -0.44% | 11,648,298 |
| Oct 3, 2025 | 89.63 | 90.70 | 88.10 | 89.19 | 89.19 | -0.36% | 12,970,576 |
| Oct 2, 2025 | 89.95 | 91.00 | 88.22 | 89.51 | 89.51 | -0.69% | 14,575,377 |
| Oct 1, 2025 | 85.19 | 90.75 | 85.19 | 90.13 | 90.13 | 7.39% | 33,460,875 |
| 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% | 14,923,785 |
| 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 | 82.00 | -2.75% | 9,939,451 |
| Sep 11, 2025 | 84.34 | 85.55 | 84.00 | 85.15 | 84.32 | 1.33% | 9,667,174 |
| Sep 10, 2025 | 84.27 | 84.57 | 83.54 | 84.03 | 83.21 | -0.69% | 13,073,268 |
| Sep 9, 2025 | 84.18 | 84.80 | 84.13 | 84.61 | 83.78 | 0.62% | 9,767,468 |
| Sep 8, 2025 | 84.16 | 84.32 | 82.82 | 84.09 | 83.27 | -0.73% | 13,111,165 |
| Sep 5, 2025 | 83.79 | 85.27 | 83.25 | 84.71 | 83.88 | 0.79% | 13,231,140 |
| Sep 4, 2025 | 84.20 | 84.41 | 83.00 | 84.05 | 83.23 | -0.15% | 12,554,844 |
| Sep 3, 2025 | 85.37 | 85.81 | 84.07 | 84.18 | 83.36 | -1.52% | 12,714,392 |
| Sep 2, 2025 | 84.50 | 85.50 | 84.34 | 85.48 | 84.64 | 1.62% | 11,642,713 |
| Aug 29, 2025 | 83.42 | 84.24 | 83.28 | 84.12 | 83.30 | 1.09% | 10,872,919 |
| Aug 28, 2025 | 84.25 | 84.25 | 82.65 | 83.21 | 82.40 | -1.02% | 14,485,303 |
| Aug 27, 2025 | 85.07 | 85.48 | 83.88 | 84.07 | 83.25 | -1.08% | 10,588,086 |
| Aug 26, 2025 | 85.56 | 85.59 | 84.67 | 84.99 | 84.16 | -0.38% | 14,062,690 |
| Aug 25, 2025 | 87.21 | 87.39 | 84.95 | 85.31 | 84.48 | -2.36% | 9,417,659 |
| Aug 22, 2025 | 87.50 | 87.84 | 86.76 | 87.37 | 86.52 | 1.50% | 11,977,434 |
| Aug 21, 2025 | 84.88 | 87.32 | 84.60 | 86.08 | 85.24 | 1.68% | 13,889,005 |
| Aug 20, 2025 | 85.31 | 86.25 | 84.55 | 84.66 | 83.83 | -0.32% | 8,904,738 |
| Aug 19, 2025 | 84.38 | 85.80 | 84.38 | 84.93 | 84.10 | 0.84% | 14,307,713 |
| Aug 18, 2025 | 84.26 | 85.15 | 84.08 | 84.22 | 83.40 | 0.01% | 8,273,573 |
| Aug 15, 2025 | 83.72 | 84.74 | 83.36 | 84.21 | 83.39 | 1.75% | 10,481,384 |
| Aug 14, 2025 | 82.01 | 83.40 | 81.60 | 82.76 | 81.95 | 0.06% | 10,217,602 |
| Aug 13, 2025 | 80.75 | 82.84 | 80.20 | 82.71 | 81.90 | 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 | 79.25 | -0.82% | 8,210,702 |
| Aug 8, 2025 | 80.12 | 81.17 | 80.12 | 80.69 | 79.90 | 0.40% | 6,882,894 |
| Aug 7, 2025 | 79.65 | 80.82 | 78.65 | 80.37 | 79.58 | 1.17% | 10,830,075 |
| Aug 6, 2025 | 80.29 | 81.32 | 79.27 | 79.44 | 78.66 | -1.67% | 13,028,688 |
| Aug 5, 2025 | 79.90 | 81.13 | 79.57 | 80.79 | 80.00 | 1.16% | 9,984,272 |
| Aug 4, 2025 | 79.06 | 79.99 | 78.43 | 79.86 | 79.08 | 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 | 77.36 | -4.44% | 19,813,303 |
| Jul 30, 2025 | 82.91 | 83.58 | 81.52 | 81.75 | 80.95 | -1.06% | 13,055,190 |
| Jul 29, 2025 | 79.85 | 82.89 | 76.66 | 82.63 | 81.82 | -1.70% | 27,826,419 |
| Jul 28, 2025 | 84.47 | 84.97 | 83.87 | 84.06 | 83.24 | -0.77% | 12,881,971 |
| Jul 25, 2025 | 84.16 | 85.22 | 83.84 | 84.71 | 83.88 | 0.71% | 10,058,807 |
| Jul 24, 2025 | 84.20 | 84.51 | 83.52 | 84.11 | 83.29 | 0.15% | 8,016,947 |
| Jul 23, 2025 | 82.62 | 84.14 | 82.41 | 83.98 | 83.16 | 2.90% | 11,542,091 |
| Jul 22, 2025 | 79.87 | 81.77 | 79.87 | 81.61 | 80.81 | 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 | 79.18 | -1.91% | 11,823,603 |
| Jul 17, 2025 | 81.98 | 82.66 | 81.34 | 81.52 | 80.72 | -1.10% | 8,984,797 |