ALNY Alnylam Pharmaceuticals, Inc.
Stock · NasdaqGS · United States · Healthcare · US02043Q1076
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Price history
Daily prices in USD.
Updated 06 Nov 2026 14:13. Information, not advice.
Prices by day, week and month
| Period | Opening price | High | Low | Closing price | Change | Volume | Dividend |
|---|---|---|---|---|---|---|---|
| 27 Aug 2025 | 449.05 | 455.45 | 447.63 | 454.18 | +0.66% | 906,700 | |
| 26 Aug 2025 | 451.50 | 451.50 | 444.25 | 451.20 | +1.70% | 1,183,700 | |
| 25 Aug 2025 | 453.37 | 458.75 | 442.38 | 443.64 | -2.36% | 1,200,000 | |
| 22 Aug 2025 | 469.17 | 469.81 | 454.20 | 454.38 | -2.82% | 1,075,500 | |
| 21 Aug 2025 | 459.62 | 467.71 | 454.68 | 467.55 | +2.02% | 760,100 | |
| 20 Aug 2025 | 459.34 | 466.31 | 456.06 | 458.31 | +0.01% | 1,223,500 | |
| 19 Aug 2025 | 457.00 | 462.88 | 450.88 | 458.28 | +0.31% | 1,322,100 | |
| 18 Aug 2025 | 450.00 | 457.92 | 447.10 | 456.87 | +1.77% | 1,608,800 | |
| 15 Aug 2025 | 440.66 | 449.52 | 438.22 | 448.91 | +1.40% | 713,400 | |
| 14 Aug 2025 | 433.59 | 443.98 | 428.99 | 442.73 | +2.36% | 1,263,500 | |
| 13 Aug 2025 | 428.43 | 438.23 | 421.81 | 432.52 | +0.60% | 2,094,400 | |
| 12 Aug 2025 | 434.58 | 437.00 | 428.30 | 429.93 | -1.17% | 1,507,700 | |
| 11 Aug 2025 | 433.65 | 445.20 | 426.19 | 435.00 | -0.90% | 988,600 | |
| 08 Aug 2025 | 435.10 | 439.36 | 427.66 | 438.93 | +0.88% | 901,300 | |
| 07 Aug 2025 | 429.33 | 436.77 | 425.81 | 435.10 | +1.63% | 1,152,700 | |
| 06 Aug 2025 | 418.76 | 428.69 | 415.00 | 428.14 | +2.20% | 1,181,800 | |
| 05 Aug 2025 | 416.64 | 426.76 | 410.49 | 418.91 | -0.15% | 1,807,600 | |
| 04 Aug 2025 | 406.65 | 422.64 | 398.91 | 419.56 | +4.42% | 1,455,500 | |
| 01 Aug 2025 | 388.68 | 401.80 | 382.19 | 401.80 | +2.44% | 1,781,300 | |
| 31 Jul 2025 | 350.00 | 402.43 | 350.00 | 392.24 | +15.43% | 3,353,500 | |
| 30 Jul 2025 | 335.00 | 345.98 | 333.03 | 339.80 | +2.80% | 2,058,300 | |
| 29 Jul 2025 | 328.92 | 331.06 | 323.74 | 330.55 | +1.77% | 862,500 | |
| 28 Jul 2025 | 329.00 | 331.43 | 324.78 | 324.79 | -1.22% | 1,032,000 | |
| 25 Jul 2025 | 331.50 | 331.50 | 324.55 | 328.81 | +0.25% | 666,700 | |
| 24 Jul 2025 | 326.35 | 332.19 | 324.30 | 328.00 | +0.72% | 677,100 |
Prices in USD, adjusted for splits but not for dividends. Weeks run Monday to Friday and months follow the calendar; the change compares each close with the previous period's. Dividends are those whose ex-dividend date falls in the period, per share. Information, not advice.
Key data
- Previous close
- 161.08 USD
- Market cap
- 21.0B
- Exchange
- NasdaqGS
- Country
- United States
- Sector
- Healthcare
- Industry
- Biotechnology
- Currency
- USD
Dividends
No dividends on record.
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