Alnylam Pharmaceuticals, Inc. (ALNY)
NASDAQ: ALNY · Real-Time Price · USD
453.97
-5.61 (-1.22%)
Oct 8, 2025, 10:28 AM EDT - Market open
Alnylam Pharmaceuticals Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 7, 2025 | 456.94 | 462.63 | 448.95 | 459.58 | 459.58 | 1.68% | 791,895 |
| Oct 6, 2025 | 458.69 | 458.69 | 449.92 | 452.00 | 452.00 | -0.95% | 918,501 |
| Oct 3, 2025 | 465.01 | 465.01 | 448.47 | 456.35 | 456.35 | -1.01% | 969,089 |
| Oct 2, 2025 | 457.64 | 461.53 | 446.18 | 460.99 | 460.99 | 0.07% | 1,269,237 |
| Oct 1, 2025 | 456.00 | 467.42 | 453.31 | 460.65 | 460.65 | 1.02% | 1,370,050 |
| Sep 30, 2025 | 445.22 | 459.30 | 445.22 | 456.00 | 456.00 | 1.90% | 1,379,551 |
| Sep 29, 2025 | 448.00 | 451.63 | 446.30 | 447.49 | 447.49 | 0.24% | 719,079 |
| Sep 26, 2025 | 453.05 | 453.05 | 442.51 | 446.40 | 446.40 | -0.71% | 812,999 |
| Sep 25, 2025 | 457.03 | 459.00 | 446.42 | 449.58 | 449.58 | -1.92% | 685,313 |
| Sep 24, 2025 | 454.35 | 462.69 | 450.97 | 458.37 | 458.37 | 0.87% | 975,991 |
| Sep 23, 2025 | 452.83 | 457.47 | 450.50 | 454.41 | 454.41 | -0.98% | 1,024,608 |
| Sep 22, 2025 | 453.56 | 462.88 | 450.23 | 458.92 | 458.92 | 1.18% | 971,763 |
| Sep 19, 2025 | 457.68 | 457.68 | 450.72 | 453.56 | 453.56 | 0.31% | 1,713,315 |
| Sep 18, 2025 | 454.00 | 456.94 | 443.75 | 452.17 | 452.17 | 0.10% | 1,061,008 |
| Sep 17, 2025 | 455.76 | 463.88 | 450.70 | 451.73 | 451.73 | -2.06% | 1,445,600 |
| Sep 16, 2025 | 465.14 | 467.28 | 457.99 | 461.24 | 461.24 | 0.02% | 773,501 |
| Sep 15, 2025 | 464.80 | 466.24 | 454.51 | 461.14 | 461.14 | -1.02% | 910,067 |
| Sep 12, 2025 | 468.29 | 475.69 | 465.48 | 465.89 | 465.89 | -0.57% | 630,781 |
| Sep 11, 2025 | 474.34 | 474.34 | 465.16 | 468.58 | 468.58 | -0.16% | 1,005,306 |
| Sep 10, 2025 | 478.50 | 480.05 | 461.47 | 469.31 | 469.31 | -2.66% | 1,817,375 |
| Sep 9, 2025 | 461.12 | 484.21 | 455.30 | 482.13 | 482.13 | 5.96% | 3,217,762 |
| Sep 8, 2025 | 457.31 | 463.00 | 452.85 | 455.03 | 455.03 | 0.67% | 925,993 |
| Sep 5, 2025 | 453.45 | 455.28 | 444.66 | 452.00 | 452.00 | -0.34% | 751,500 |
| Sep 4, 2025 | 449.43 | 458.30 | 447.11 | 453.54 | 453.54 | 1.37% | 714,264 |
| Sep 3, 2025 | 444.77 | 456.18 | 442.73 | 447.43 | 447.43 | 0.10% | 1,271,559 |
| Sep 2, 2025 | 445.84 | 454.50 | 441.50 | 447.00 | 447.00 | 0.11% | 1,072,194 |
| Aug 29, 2025 | 452.22 | 453.96 | 444.79 | 446.51 | 446.51 | -1.29% | 827,614 |
| Aug 28, 2025 | 452.01 | 457.29 | 451.12 | 452.33 | 452.33 | -0.41% | 641,007 |
| Aug 27, 2025 | 449.05 | 455.45 | 447.63 | 454.18 | 454.18 | 0.66% | 906,745 |
| Aug 26, 2025 | 451.50 | 451.50 | 444.25 | 451.20 | 451.20 | 1.70% | 1,183,717 |
| Aug 25, 2025 | 453.37 | 458.75 | 442.38 | 443.64 | 443.64 | -2.36% | 1,200,028 |
| Aug 22, 2025 | 469.17 | 469.81 | 454.20 | 454.38 | 454.38 | -2.82% | 1,075,672 |
| Aug 21, 2025 | 459.62 | 467.71 | 454.68 | 467.55 | 467.55 | 2.02% | 760,122 |
| Aug 20, 2025 | 459.34 | 466.31 | 456.06 | 458.31 | 458.31 | 0.01% | 1,223,522 |
| Aug 19, 2025 | 457.00 | 462.88 | 450.88 | 458.28 | 458.28 | 0.31% | 1,322,098 |
| Aug 18, 2025 | 450.00 | 457.92 | 447.10 | 456.87 | 456.87 | 1.77% | 1,608,844 |
| Aug 15, 2025 | 440.66 | 449.52 | 438.22 | 448.91 | 448.91 | 1.40% | 713,356 |
| Aug 14, 2025 | 433.59 | 443.98 | 428.99 | 442.73 | 442.73 | 2.36% | 1,263,485 |
| 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 |