Alnylam Pharmaceuticals, Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2026-10-23 | 227.28 | 231.48 | 220.06 | 226.55 | 226.55 | 652 |
| 2026-10-22 | 225.15 | 229.60 | 221.24 | 228.55 | 228.55 | 871 |
| 2026-10-21 | 228.36 | 230.99 | 225.22 | 226.60 | 226.60 | 219 |
| 2026-10-20 | 235.96 | 239.98 | 230.29 | 231.90 | 231.90 | 1,007 |
| 2026-10-19 | 234.54 | 235.83 | 227.83 | 235.08 | 235.08 | 881 |
| 2026-10-16 | 235.50 | 237.91 | 230.96 | 233.25 | 233.25 | 646 |
| 2026-10-15 | 222.49 | 234.22 | 221.38 | 231.41 | 231.41 | 566 |
| 2026-10-14 | 220.00 | 229.14 | 219.50 | 224.59 | 224.59 | 140 |
| 2026-10-13 | 227.47 | 229.60 | 222.21 | 222.79 | 222.79 | 430 |
| 2026-10-12 | 233.03 | 237.52 | 228.26 | 228.26 | 228.26 | 94 |
| 2026-10-09 | 227.27 | 232.85 | 219.98 | 231.65 | 231.65 | 482 |
| 2026-10-08 | 227.15 | 228.98 | 218.85 | 222.44 | 222.44 | 654 |
| 2026-10-07 | 226.70 | 230.08 | 222.40 | 226.07 | 226.07 | 246 |
| 2026-10-06 | 220.00 | 228.90 | 217.18 | 225.29 | 225.29 | 422 |
| 2026-10-05 | 224.33 | 225.00 | 215.73 | 219.11 | 219.11 | 581 |
| 2026-10-02 | 231.54 | 236.00 | 221.53 | 221.67 | 221.67 | 449 |
| 2026-10-01 | 253.14 | 253.14 | 233.52 | 233.52 | 233.52 | 1,170 |
| 2026-09-30 | 254.07 | 257.04 | 250.59 | 251.09 | 251.09 | 311 |
| 2026-09-29 | 252.62 | 257.00 | 251.76 | 253.43 | 253.43 | 259 |
| 2026-09-28 | 255.50 | 260.09 | 249.07 | 254.59 | 254.59 | 5,608 |
| 2026-09-25 | 253.00 | 254.98 | 248.00 | 252.19 | 252.19 | 217 |
| 2026-09-24 | 246.00 | 253.00 | 245.52 | 247.90 | 247.90 | 383 |
| 2026-09-23 | 251.03 | 257.40 | 247.35 | 247.85 | 247.85 | 143 |
| 2026-09-22 | 243.78 | 254.85 | 243.78 | 252.81 | 252.81 | 189 |
| 2026-09-21 | 246.00 | 246.56 | 238.50 | 245.99 | 245.99 | 39 |
| 2026-09-18 | 248.92 | 248.92 | 238.92 | 241.43 | 241.43 | 926 |
| 2026-09-17 | 248.37 | 248.37 | 239.86 | 240.82 | 240.82 | 38 |
| 2026-09-16 | 239.98 | 242.61 | 236.00 | 239.90 | 239.90 | 153 |
| 2026-09-15 | 247.01 | 252.50 | 240.40 | 240.49 | 240.49 | 1,942 |
| 2026-09-14 | 248.67 | 253.00 | 240.50 | 248.48 | 248.48 | 259 |
| 2026-09-11 | 241.00 | 254.24 | 241.00 | 252.94 | 252.94 | 806 |
| 2026-09-10 | 265.00 | 265.00 | 247.85 | 249.61 | 249.61 | 1,160 |
| 2026-09-09 | 255.00 | 266.30 | 253.54 | 255.11 | 255.11 | 1,372 |
| 2026-09-08 | 266.11 | 271.01 | 248.20 | 262.23 | 262.23 | 4,034 |
| 2026-09-04 | 266.00 | 266.44 | 258.02 | 264.00 | 264.00 | 327 |
| 2026-09-03 | 264.03 | 271.79 | 261.53 | 264.24 | 264.24 | 228 |
| 2026-09-02 | 250.00 | 268.03 | 242.66 | 264.51 | 264.51 | 1,023 |
| 2026-09-01 | 236.30 | 246.00 | 236.30 | 241.19 | 241.19 | 246 |
| 2026-08-31 | 240.00 | 242.25 | 234.61 | 240.14 | 240.14 | 518 |
| 2026-08-28 | 240.00 | 240.00 | 220.80 | 235.93 | 235.93 | 916 |
| 2026-08-27 | 237.94 | 241.94 | 231.01 | 234.01 | 234.01 | 778 |
| 2026-08-26 | 241.89 | 249.57 | 236.21 | 241.82 | 241.82 | 377 |
| 2026-08-25 | 236.02 | 247.92 | 235.20 | 240.20 | 240.20 | 605 |
| 2026-08-24 | 236.50 | 248.20 | 229.35 | 232.96 | 232.96 | 386 |
| 2026-08-21 | 240.00 | 240.00 | 226.00 | 236.70 | 236.70 | 541 |
| 2026-08-20 | 240.05 | 249.99 | 232.62 | 232.86 | 232.86 | 749 |
| 2026-08-19 | 230.00 | 241.62 | 220.02 | 241.40 | 241.40 | 602 |
| 2026-08-18 | 224.60 | 230.38 | 218.80 | 230.14 | 230.14 | 834 |
| 2026-08-17 | 225.17 | 234.10 | 222.50 | 223.80 | 223.80 | 853 |
| 2026-08-14 | 227.18 | 229.99 | 220.23 | 227.71 | 227.71 | 925 |
| 2026-08-13 | 223.38 | 227.16 | 223.03 | 226.56 | 226.56 | 441 |
| 2026-08-12 | 224.68 | 224.76 | 218.80 | 223.44 | 223.44 | 339 |
| 2026-08-11 | 213.99 | 223.45 | 213.99 | 218.97 | 218.97 | 631 |
| 2026-08-10 | 225.60 | 225.68 | 217.70 | 217.84 | 217.84 | 773 |
| 2026-08-07 | 219.76 | 221.94 | 210.92 | 215.17 | 215.17 | 896 |
| 2026-08-06 | 227.00 | 233.60 | 219.68 | 220.16 | 220.16 | 7,386 |
| 2026-08-05 | 219.11 | 229.16 | 219.11 | 228.00 | 228.00 | 277 |
| 2026-08-04 | 222.06 | 223.00 | 215.69 | 218.14 | 218.14 | 1,135 |
| 2026-08-03 | 210.00 | 220.41 | 205.74 | 216.70 | 216.70 | 3,230 |
| 2026-07-31 | 206.74 | 209.00 | 200.64 | 202.64 | 202.64 | 4,861 |
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Stock splits
No stock splits on record.
Dividends
No dividends on record.
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.