Alnylam Pharmaceuticals, Inc. (ALNY)
NASDAQ: ALNY · Real-Time Price · USD
432.52
+2.59 (0.60%)
At close: Aug 13, 2025, 4:00 PM
435.00
+2.48 (0.57%)
After-hours: Aug 13, 2025, 7:41 PM EDT
Alnylam Pharmaceuticals Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 13, 2025 | 428.43 | 438.23 | 421.81 | 432.52 | 432.52 | 0.60% | 2,094,449 |
| Aug 12, 2025 | 434.58 | 437.00 | 428.30 | 429.93 | 429.93 | -1.17% | 1,508,236 |
| Aug 11, 2025 | 433.65 | 445.20 | 426.19 | 435.00 | 435.00 | -0.90% | 988,644 |
| Aug 8, 2025 | 435.10 | 439.36 | 427.66 | 438.93 | 438.93 | 0.88% | 901,275 |
| Aug 7, 2025 | 429.33 | 436.77 | 425.81 | 435.10 | 435.10 | 1.63% | 1,152,674 |
| Aug 6, 2025 | 418.76 | 428.69 | 415.00 | 428.14 | 428.14 | 2.20% | 1,181,810 |
| Aug 5, 2025 | 416.64 | 426.76 | 410.49 | 418.91 | 418.91 | -0.15% | 1,807,615 |
| Aug 4, 2025 | 406.65 | 422.64 | 398.91 | 419.56 | 419.56 | 4.42% | 1,455,503 |
| Aug 1, 2025 | 388.68 | 401.80 | 382.19 | 401.80 | 401.80 | 2.44% | 1,781,357 |
| Jul 31, 2025 | 350.00 | 402.43 | 350.00 | 392.24 | 392.24 | 15.43% | 3,353,586 |
| Jul 30, 2025 | 335.00 | 345.98 | 333.03 | 339.80 | 339.80 | 2.80% | 2,058,263 |
| Jul 29, 2025 | 328.92 | 331.06 | 323.74 | 330.55 | 330.55 | 1.77% | 862,482 |
| Jul 28, 2025 | 329.00 | 331.43 | 324.78 | 324.79 | 324.79 | -1.22% | 1,032,041 |
| Jul 25, 2025 | 331.50 | 331.50 | 324.55 | 328.81 | 328.81 | 0.25% | 666,676 |
| Jul 24, 2025 | 326.35 | 332.19 | 324.30 | 328.00 | 328.00 | 0.72% | 677,122 |
| Jul 23, 2025 | 325.28 | 329.34 | 322.30 | 325.64 | 325.64 | 0.11% | 912,188 |
| Jul 22, 2025 | 321.57 | 326.30 | 320.18 | 325.28 | 325.28 | 1.49% | 1,273,708 |
| Jul 21, 2025 | 324.98 | 328.70 | 320.26 | 320.52 | 320.52 | - | 744,530 |
| Jul 18, 2025 | 325.62 | 325.62 | 317.88 | 320.53 | 320.53 | -1.28% | 581,322 |
| Jul 17, 2025 | 321.20 | 329.87 | 321.06 | 324.69 | 324.69 | 0.58% | 744,566 |
| Jul 16, 2025 | 314.52 | 323.41 | 311.26 | 322.81 | 322.81 | 3.76% | 1,234,188 |
| Jul 15, 2025 | 316.90 | 316.90 | 309.57 | 311.12 | 311.12 | -1.47% | 927,335 |
| Jul 14, 2025 | 314.94 | 319.18 | 313.76 | 315.75 | 315.75 | 0.26% | 629,609 |
| Jul 11, 2025 | 321.12 | 321.12 | 312.96 | 314.94 | 314.94 | -2.39% | 1,081,910 |
| Jul 10, 2025 | 322.47 | 324.82 | 319.15 | 322.64 | 322.64 | 0.55% | 489,398 |
| Jul 9, 2025 | 316.87 | 322.68 | 313.74 | 320.87 | 320.87 | 1.06% | 1,039,484 |
| Jul 8, 2025 | 324.13 | 328.99 | 315.81 | 317.50 | 317.50 | -2.05% | 972,969 |
| Jul 7, 2025 | 328.24 | 328.24 | 314.10 | 324.13 | 324.13 | -2.34% | 1,294,593 |
| Jul 3, 2025 | 330.00 | 333.70 | 327.88 | 331.91 | 331.91 | 0.65% | 431,157 |
| Jul 2, 2025 | 319.62 | 330.00 | 319.40 | 329.77 | 329.77 | 2.39% | 967,743 |
| Jul 1, 2025 | 324.77 | 326.64 | 315.03 | 322.06 | 322.06 | -1.24% | 1,240,081 |
| Jun 30, 2025 | 324.77 | 327.21 | 320.57 | 326.09 | 326.09 | 1.01% | 943,623 |
| Jun 27, 2025 | 317.33 | 323.20 | 315.14 | 322.83 | 322.83 | 1.44% | 2,052,212 |
| Jun 26, 2025 | 324.93 | 325.00 | 315.00 | 318.25 | 318.25 | -1.15% | 663,904 |
| Jun 25, 2025 | 323.51 | 324.32 | 320.71 | 321.94 | 321.94 | -0.94% | 632,571 |
| Jun 24, 2025 | 316.51 | 326.03 | 309.96 | 325.00 | 325.00 | 3.79% | 1,000,030 |
| Jun 23, 2025 | 310.60 | 314.78 | 308.46 | 313.13 | 313.13 | 1.11% | 503,130 |
| Jun 20, 2025 | 313.00 | 314.50 | 308.78 | 309.70 | 309.70 | -0.84% | 1,336,971 |
| Jun 18, 2025 | 309.17 | 317.54 | 306.70 | 312.32 | 312.32 | 1.17% | 981,185 |
| Jun 17, 2025 | 305.12 | 309.06 | 303.31 | 308.71 | 308.71 | -0.02% | 570,558 |
| Jun 16, 2025 | 306.45 | 309.63 | 302.32 | 308.78 | 308.78 | 0.26% | 520,205 |
| Jun 13, 2025 | 300.97 | 308.02 | 300.97 | 307.99 | 307.99 | 1.09% | 571,872 |
| Jun 12, 2025 | 300.48 | 307.48 | 295.82 | 304.67 | 304.67 | 2.04% | 874,902 |
| Jun 11, 2025 | 303.18 | 303.85 | 298.25 | 298.58 | 298.58 | -1.28% | 456,351 |
| Jun 10, 2025 | 303.81 | 308.89 | 301.34 | 302.46 | 302.46 | -0.51% | 515,086 |
| Jun 9, 2025 | 303.80 | 306.17 | 297.67 | 304.00 | 304.00 | 1.05% | 609,653 |
| Jun 6, 2025 | 309.00 | 310.22 | 300.27 | 300.83 | 300.83 | -2.33% | 954,848 |
| Jun 5, 2025 | 304.55 | 308.53 | 300.75 | 308.00 | 308.00 | 0.88% | 762,007 |
| Jun 4, 2025 | 303.22 | 308.93 | 302.34 | 305.31 | 305.31 | 0.51% | 563,089 |
| Jun 3, 2025 | 306.00 | 307.85 | 301.52 | 303.77 | 303.77 | -0.76% | 965,349 |