Alnylam Pharmaceuticals, Inc. (ALNY)
NASDAQ: ALNY · Real-Time Price · USD
330.34
+11.49 (3.60%)
At close: Apr 6, 2026, 4:00 PM EDT
320.61
-9.73 (-2.95%)
After-hours: Apr 6, 2026, 7:56 PM EDT
Alnylam Pharmaceuticals Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Apr 6, 2026 | 320.10 | 335.58 | 320.10 | 330.34 | 330.34 | 3.60% | 1,219,881 |
| Apr 2, 2026 | 323.03 | 325.49 | 315.90 | 318.85 | 318.85 | -3.01% | 872,426 |
| Apr 1, 2026 | 332.69 | 335.48 | 327.59 | 328.73 | 328.73 | -0.65% | 673,073 |
| Mar 31, 2026 | 319.06 | 332.48 | 318.37 | 330.87 | 330.87 | 4.68% | 1,352,267 |
| Mar 30, 2026 | 319.32 | 321.76 | 314.21 | 316.09 | 316.09 | -0.40% | 1,223,904 |
| Mar 27, 2026 | 327.10 | 329.69 | 316.85 | 317.36 | 317.36 | -3.29% | 815,901 |
| Mar 26, 2026 | 328.90 | 332.81 | 327.69 | 328.16 | 328.16 | -0.16% | 1,119,781 |
| Mar 25, 2026 | 313.34 | 329.48 | 311.71 | 328.70 | 328.70 | 6.70% | 1,139,647 |
| Mar 24, 2026 | 303.42 | 308.91 | 299.62 | 308.05 | 308.05 | 0.45% | 1,497,337 |
| Mar 23, 2026 | 320.77 | 323.23 | 304.38 | 306.66 | 306.66 | -1.77% | 1,378,963 |
| Mar 20, 2026 | 311.05 | 322.43 | 311.05 | 312.17 | 312.17 | 0.34% | 2,050,765 |
| Mar 19, 2026 | 316.42 | 317.61 | 309.73 | 311.10 | 311.10 | -1.18% | 663,587 |
| Mar 18, 2026 | 317.50 | 319.27 | 312.58 | 314.80 | 314.80 | -1.75% | 1,077,650 |
| Mar 17, 2026 | 319.63 | 326.96 | 317.53 | 320.42 | 320.42 | 0.47% | 1,796,943 |
| Mar 16, 2026 | 311.22 | 319.55 | 311.22 | 318.91 | 318.91 | 1.75% | 1,247,482 |
| Mar 13, 2026 | 319.00 | 319.50 | 309.92 | 313.41 | 313.41 | -1.20% | 829,276 |
| Mar 12, 2026 | 320.53 | 321.00 | 309.61 | 317.23 | 317.23 | -1.00% | 1,247,315 |
| Mar 11, 2026 | 322.00 | 323.71 | 317.75 | 320.43 | 320.43 | -0.60% | 906,626 |
| Mar 10, 2026 | 325.60 | 326.18 | 317.03 | 322.38 | 322.38 | -0.37% | 1,169,417 |
| Mar 9, 2026 | 317.25 | 323.68 | 313.12 | 323.59 | 323.59 | 0.91% | 1,081,127 |
| Mar 6, 2026 | 317.73 | 321.17 | 312.09 | 320.66 | 320.66 | 0.05% | 996,497 |
| Mar 5, 2026 | 323.69 | 328.28 | 319.51 | 320.51 | 320.51 | -2.07% | 1,215,172 |
| Mar 4, 2026 | 319.20 | 328.00 | 317.25 | 327.30 | 327.30 | 2.71% | 931,151 |
| Mar 3, 2026 | 321.37 | 324.06 | 315.20 | 318.65 | 318.65 | -1.97% | 947,625 |
| Mar 2, 2026 | 329.41 | 334.42 | 323.16 | 325.07 | 325.07 | -2.36% | 1,302,332 |
| Feb 27, 2026 | 331.24 | 334.80 | 328.39 | 332.92 | 332.92 | 0.51% | 1,569,839 |
| Feb 26, 2026 | 328.67 | 333.47 | 322.00 | 331.24 | 331.24 | 1.19% | 880,311 |
| Feb 25, 2026 | 332.76 | 334.42 | 325.24 | 327.36 | 327.36 | -1.65% | 751,722 |
| Feb 24, 2026 | 328.22 | 333.07 | 324.48 | 332.85 | 332.85 | 1.06% | 791,573 |
| Feb 23, 2026 | 335.73 | 341.39 | 326.76 | 329.35 | 329.35 | -2.03% | 792,033 |
| Feb 20, 2026 | 336.58 | 345.90 | 335.83 | 336.19 | 336.19 | -0.94% | 1,375,285 |
| Feb 19, 2026 | 332.24 | 339.61 | 326.33 | 339.37 | 339.37 | 2.01% | 1,152,962 |
| Feb 18, 2026 | 328.86 | 335.80 | 324.53 | 332.68 | 332.68 | 0.02% | 1,151,205 |
| Feb 17, 2026 | 316.80 | 336.21 | 315.63 | 332.61 | 332.61 | 5.79% | 1,516,389 |
| Feb 13, 2026 | 302.55 | 318.44 | 302.55 | 314.40 | 314.40 | 1.92% | 1,476,326 |
| Feb 12, 2026 | 314.42 | 315.51 | 298.00 | 308.48 | 308.48 | -4.28% | 2,897,726 |
| Feb 11, 2026 | 322.14 | 325.04 | 317.80 | 322.28 | 322.28 | -0.22% | 1,582,249 |
| Feb 10, 2026 | 322.68 | 325.98 | 317.89 | 322.98 | 322.98 | 0.93% | 1,865,664 |
| Feb 9, 2026 | 325.49 | 329.92 | 319.26 | 320.00 | 320.00 | -2.49% | 1,392,019 |
| Feb 6, 2026 | 331.61 | 340.07 | 326.51 | 328.16 | 328.16 | -0.93% | 1,476,914 |
| Feb 5, 2026 | 350.50 | 350.50 | 327.27 | 331.24 | 331.24 | -5.89% | 2,620,979 |
| Feb 4, 2026 | 354.00 | 355.49 | 347.08 | 351.96 | 351.96 | 0.05% | 1,779,461 |
| Feb 3, 2026 | 338.49 | 352.82 | 337.59 | 351.80 | 351.80 | 3.74% | 2,152,860 |
| Feb 2, 2026 | 337.42 | 342.33 | 333.00 | 339.11 | 339.11 | 0.31% | 1,911,150 |
| Jan 30, 2026 | 343.10 | 346.50 | 336.39 | 338.06 | 338.06 | -2.52% | 1,648,568 |
| Jan 29, 2026 | 349.37 | 350.34 | 345.01 | 346.79 | 346.79 | -0.80% | 1,682,030 |
| Jan 28, 2026 | 353.66 | 356.84 | 348.00 | 349.58 | 349.58 | -1.46% | 1,099,190 |
| Jan 27, 2026 | 361.55 | 368.07 | 354.69 | 354.75 | 354.75 | -1.83% | 988,087 |
| Jan 26, 2026 | 357.98 | 364.07 | 352.50 | 361.35 | 361.35 | 0.94% | 936,370 |
| Jan 23, 2026 | 368.20 | 371.33 | 356.72 | 357.98 | 357.98 | -3.25% | 1,636,801 |