Alnylam Pharmaceuticals, Inc. (ALNY)
NASDAQ: ALNY · Real-Time Price · USD
230.18
+6.15 (2.75%)
Oct 26, 2026, 10:32 AM EDT - Market open
Alnylam Pharmaceuticals Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 26, 2026 | 226.24 | 231.75 | 224.10 | 230.18 | 230.18 | 2.75% | 194,224 |
| Oct 23, 2026 | 227.28 | 229.39 | 222.00 | 224.03 | 224.03 | -1.43% | 1,000,977 |
| Oct 22, 2026 | 224.92 | 229.82 | 223.76 | 227.28 | 227.28 | 0.97% | 2,211,683 |
| Oct 21, 2026 | 227.86 | 230.84 | 224.88 | 225.10 | 225.10 | -2.43% | 1,177,323 |
| Oct 20, 2026 | 237.73 | 238.96 | 229.54 | 230.71 | 230.71 | -1.11% | 1,457,888 |
| 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 |
| Sep 3, 2026 | 265.94 | 271.19 | 261.54 | 264.50 | 264.50 | -1.08% | 1,710,078 |
| Sep 2, 2026 | 246.48 | 269.94 | 246.48 | 267.40 | 267.40 | 8.65% | 3,286,329 |
| Sep 1, 2026 | 242.40 | 248.13 | 238.00 | 246.11 | 246.11 | 2.25% | 1,941,271 |
| Aug 31, 2026 | 235.94 | 243.02 | 233.33 | 240.69 | 240.69 | 1.51% | 1,636,349 |
| Aug 28, 2026 | 224.47 | 239.08 | 223.61 | 237.10 | 237.10 | 0.23% | 1,847,139 |
| Aug 27, 2026 | 236.56 | 238.00 | 230.46 | 236.56 | 236.56 | -1.02% | 1,293,542 |
| Aug 26, 2026 | 238.54 | 242.89 | 236.60 | 239.00 | 239.00 | -0.45% | 1,116,266 |
| Aug 25, 2026 | 236.56 | 240.67 | 235.41 | 240.08 | 240.08 | 1.72% | 1,576,352 |
| Aug 24, 2026 | 235.83 | 237.91 | 228.59 | 236.01 | 236.01 | -0.09% | 2,137,241 |
| Aug 21, 2026 | 228.88 | 238.97 | 228.34 | 236.22 | 236.22 | 3.02% | 1,906,404 |
| Aug 20, 2026 | 239.00 | 240.88 | 228.74 | 229.30 | 229.30 | -5.49% | 1,701,704 |
| Aug 19, 2026 | 234.36 | 244.03 | 233.40 | 242.61 | 242.61 | 6.12% | 1,879,215 |
| Aug 18, 2026 | 226.27 | 230.91 | 222.01 | 228.61 | 228.61 | 1.79% | 1,600,400 |
| Aug 17, 2026 | 225.76 | 227.99 | 222.12 | 224.60 | 224.60 | -1.77% | 1,539,238 |