Alnylam Pharmaceuticals, Inc. (ALNY)
NASDAQ: ALNY · Real-Time Price · USD
165.04
+8.39 (5.36%)
At close: Nov 13, 2026, 4:00 PM EST
165.91
+0.87 (0.53%)
After-hours: Nov 13, 2026, 7:59 PM EST
Alnylam Pharmaceuticals Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Nov 13, 2026 | 159.17 | 168.35 | 158.83 | 165.04 | 165.04 | 5.36% | 3,589,970 |
| Nov 12, 2026 | 160.16 | 162.77 | 156.59 | 156.65 | 156.65 | -2.00% | 3,516,264 |
| Nov 11, 2026 | 152.22 | 159.92 | 151.85 | 159.85 | 159.85 | 5.41% | 3,360,761 |
| Nov 10, 2026 | 155.02 | 158.82 | 149.18 | 151.64 | 151.64 | -3.17% | 2,455,636 |
| Nov 9, 2026 | 156.13 | 158.70 | 152.17 | 156.61 | 156.61 | 0.43% | 3,303,357 |
| Nov 6, 2026 | 155.22 | 159.45 | 154.30 | 155.94 | 155.94 | -0.46% | 2,829,865 |
| Nov 5, 2026 | 167.12 | 168.50 | 156.37 | 156.66 | 156.66 | -2.74% | 3,314,550 |
| Nov 4, 2026 | 166.73 | 170.49 | 160.29 | 161.08 | 161.08 | 0.74% | 3,637,828 |
| Nov 3, 2026 | 158.94 | 161.58 | 156.72 | 159.89 | 159.89 | 1.20% | 3,790,862 |
| Nov 2, 2026 | 163.10 | 163.90 | 156.00 | 158.00 | 158.00 | -4.24% | 4,763,525 |
| Oct 30, 2026 | 172.70 | 180.61 | 163.30 | 165.00 | 165.00 | -5.17% | 7,056,827 |
| Oct 29, 2026 | 185.59 | 202.37 | 172.31 | 174.00 | 174.00 | -25.13% | 11,802,855 |
| Oct 28, 2026 | 222.72 | 232.88 | 220.00 | 232.40 | 232.40 | 2.47% | 1,944,031 |
| Oct 27, 2026 | 225.00 | 228.49 | 222.82 | 226.79 | 226.79 | -0.38% | 1,603,484 |
| Oct 26, 2026 | 226.24 | 232.48 | 224.10 | 227.66 | 227.66 | 1.62% | 1,436,998 |
| Oct 23, 2026 | 227.28 | 229.39 | 222.00 | 224.03 | 224.03 | -1.43% | 1,055,960 |
| Oct 22, 2026 | 224.92 | 229.82 | 223.76 | 227.28 | 227.28 | 0.97% | 2,212,201 |
| Oct 21, 2026 | 227.86 | 230.84 | 224.88 | 225.10 | 225.10 | -2.43% | 1,181,021 |
| Oct 20, 2026 | 237.73 | 238.96 | 229.54 | 230.71 | 230.71 | -1.11% | 1,505,185 |
| Oct 19, 2026 | 232.65 | 236.54 | 231.26 | 233.29 | 233.29 | 0.63% | 1,344,122 |
| Oct 16, 2026 | 235.18 | 237.98 | 231.29 | 231.83 | 231.83 | -0.94% | 1,404,860 |
| Oct 15, 2026 | 230.00 | 234.30 | 228.12 | 234.03 | 234.03 | 4.26% | 1,257,474 |
| Oct 14, 2026 | 224.49 | 229.56 | 222.25 | 224.47 | 224.47 | 0.29% | 1,105,653 |
| Oct 13, 2026 | 228.93 | 229.53 | 221.56 | 223.82 | 223.82 | -1.41% | 1,119,026 |
| Oct 12, 2026 | 233.13 | 233.60 | 226.35 | 227.02 | 227.02 | -2.43% | 916,918 |
| Oct 9, 2026 | 224.74 | 232.94 | 222.71 | 232.68 | 232.68 | 3.63% | 959,450 |
| Oct 8, 2026 | 222.03 | 225.90 | 218.39 | 224.53 | 224.53 | 0.05% | 1,771,700 |
| Oct 7, 2026 | 224.39 | 230.42 | 222.46 | 224.41 | 224.41 | 0.21% | 1,064,112 |
| Oct 6, 2026 | 221.02 | 229.18 | 217.18 | 223.94 | 223.94 | 1.84% | 1,356,362 |
| Oct 5, 2026 | 218.36 | 222.08 | 215.46 | 219.89 | 219.89 | 0.08% | 1,281,104 |
| Oct 2, 2026 | 231.31 | 231.36 | 219.40 | 219.72 | 219.72 | -4.96% | 1,661,854 |
| Oct 1, 2026 | 248.21 | 251.71 | 230.06 | 231.18 | 231.18 | -6.31% | 2,017,406 |
| Sep 30, 2026 | 253.68 | 254.44 | 246.66 | 246.74 | 246.74 | -2.89% | 1,044,414 |
| Sep 29, 2026 | 254.86 | 257.27 | 251.02 | 254.07 | 254.07 | -0.51% | 787,081 |
| Sep 28, 2026 | 256.28 | 256.60 | 248.12 | 255.36 | 255.36 | -0.23% | 1,147,872 |
| Sep 25, 2026 | 248.39 | 256.66 | 247.51 | 255.96 | 255.96 | 2.55% | 1,084,529 |
| Sep 24, 2026 | 246.51 | 251.81 | 245.52 | 249.59 | 249.59 | 1.25% | 933,737 |
| Sep 23, 2026 | 249.99 | 253.81 | 245.34 | 246.51 | 246.51 | -2.04% | 1,481,713 |
| Sep 22, 2026 | 246.86 | 255.51 | 244.13 | 251.65 | 251.65 | 3.00% | 1,131,952 |
| Sep 21, 2026 | 240.37 | 247.10 | 237.97 | 244.32 | 244.32 | 1.99% | 1,152,874 |
| Sep 18, 2026 | 246.41 | 246.49 | 238.51 | 239.56 | 239.56 | -2.42% | 2,756,178 |
| Sep 17, 2026 | 242.60 | 245.63 | 239.50 | 245.51 | 245.51 | 2.57% | 1,006,573 |
| Sep 16, 2026 | 239.50 | 242.24 | 236.00 | 239.36 | 239.36 | 0.46% | 853,903 |
| Sep 15, 2026 | 246.99 | 247.43 | 237.44 | 238.27 | 238.27 | -4.69% | 2,175,150 |
| Sep 14, 2026 | 250.17 | 252.79 | 244.18 | 249.99 | 249.99 | 0.53% | 997,229 |
| Sep 11, 2026 | 248.05 | 254.08 | 246.01 | 248.68 | 248.68 | 0.47% | 1,177,421 |
| Sep 10, 2026 | 256.68 | 256.68 | 246.42 | 247.51 | 247.51 | -4.07% | 1,626,331 |
| Sep 9, 2026 | 257.07 | 261.98 | 253.28 | 258.00 | 258.00 | -0.81% | 1,426,414 |
| Sep 8, 2026 | 259.00 | 272.08 | 254.01 | 260.10 | 260.10 | -2.26% | 2,008,633 |
| Sep 4, 2026 | 258.58 | 266.85 | 258.02 | 266.11 | 266.11 | 0.61% | 1,431,221 |