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309.49
2.76%
8.30
After Hours:
313.83
4.34
+1.40%
Alnylam Pharmaceuticals Inc Stock (ALNY) Price History
The historical daily chart and data for Alnylam Pharmaceuticals Inc stock (ALNY), show that the latest closing stock price as of April 30, 2026, is $309.49.
- Alnylam Pharmaceuticals Inc all-time high stock price is $495.55, occurred on October 20, 2025.
- The lowest Alnylam Pharmaceuticals Inc stock price recorded was $31.38 on November 03, 2016. Since then, Alnylam Pharmaceuticals Inc's stock price has risen over 886.27% to $309.49 now.
- The 52-week high stock price for ALNY is $495.55, representing a 60.12% increase from the current share price, occurred on October 20, 2025.
- The 52-week low stock price for ALNY is $245.96, indicating a -20.53% decrease from the current share price, occurred on May 08, 2025.
- The closing price of Alnylam Pharmaceuticals Inc (ALNY) stock in the beginning of 2025 was $173.91. The stock closed the year at $237.65, a gain of over 36.65% for the year.
The table below shows more information about ALNY historical price data:
Daily
Weekly
Monthly
7D
30D
60D
YTD
1Y
| Date | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Apr 30, 2026 | $317.6 | $287.0 | $30.55 | 2,191,927.0 | +2.76% |
| Apr 29, 2026 | $304.2 | $294.1 | $10.16 | 1,561,683.0 | -0.30% |
| Apr 28, 2026 | $314.2 | $301.8 | $12.37 | 995,976.0 | -2.07% |
| Apr 27, 2026 | $314.7 | $303.7 | $11.04 | 1,093,346.0 | +0.97% |
| Apr 24, 2026 | $311.1 | $302.9 | $8.21 | 817,204.0 | -2.63% |
| Apr 23, 2026 | $315.8 | $310.8 | $5.04 | 590,424.0 | +1.03% |
| Apr 22, 2026 | $312.7 | $307.9 | $4.84 | 1,003,652.0 | +0.70% |
| Apr 21, 2026 | $310.5 | $301.6 | $8.87 | 1,510,718.0 | -0.81% |
| Apr 20, 2026 | $312.2 | $305.0 | $7.25 | 966,310.0 | +0.41% |
| Apr 17, 2026 | $326.5 | $306.0 | $20.53 | 1,495,057.0 | -3.27% |
| Apr 16, 2026 | $333.4 | $318.9 | $14.46 | 1,022,362.0 | -3.98% |
| Apr 15, 2026 | $342.2 | $331.0 | $11.21 | 799,050.0 | -1.77% |
| Apr 14, 2026 | $343.4 | $330.5 | $12.82 | 1,176,549.0 | +1.92% |
| Apr 13, 2026 | $333.6 | $319.0 | $14.56 | 967,589.0 | +3.38% |
| Apr 10, 2026 | $328.9 | $317.5 | $11.40 | 698,550.0 | +0.26% |
| Apr 09, 2026 | $326.9 | $318.8 | $8.13 | 1,119,200.0 | -1.82% |
| Apr 08, 2026 | $330.3 | $324.4 | $5.86 | 973,170.0 | +2.42% |
| Apr 07, 2026 | $322.4 | $313.5 | $8.81 | 1,305,076.0 | -3.28% |
| Apr 06, 2026 | $335.6 | $320.1 | $15.48 | 1,253,536.0 | +3.60% |
| Apr 02, 2026 | $325.5 | $315.9 | $9.59 | 872,417.0 | -3.01% |
| Apr 01, 2026 | $335.5 | $327.6 | $7.89 | 672,944.0 | -0.65% |
Alnylam Pharmaceuticals Inc Stock (ALNY) Year by Year Price History
In this detailed analysis, we present a comprehensive overview of the price movements of Alnylam Pharmaceuticals Inc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of ALNY shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Alnylam Pharmaceuticals Inc stock price history provides a foundation for understanding how the company's stock has evolved over time.
Alnylam Pharmaceuticals Inc Stock (ALNY) Price History 2026
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Apr, 2026 | $343.4 | $287.0 | $56.36 | 25,278,667.0 | -6.46% |
| Mar, 2026 | $334.4 | $299.6 | $34.80 | 25,808,101.0 | -0.62% |
| Feb, 2026 | $355.5 | $298.0 | $57.49 | 28,978,478.0 | -1.52% |
| Jan, 2026 | $427.1 | $336.4 | $90.66 | 29,780,233.0 | -14.99% |
Alnylam Pharmaceuticals Inc Stock (ALNY) Price History 2025
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2025 | $479.8 | $387.0 | $92.76 | 34,525,555.0 | -11.96% |
| Nov, 2025 | $469.1 | $417.0 | $52.11 | 18,376,257.0 | -1.05% |
| Oct, 2025 | $495.6 | $436.5 | $59.04 | 26,421,550.0 | +0.01% |
| Sep, 2025 | $484.2 | $441.5 | $42.71 | 23,991,302.0 | +2.13% |
| Aug, 2025 | $469.8 | $382.2 | $87.62 | 25,383,318.0 | +13.84% |
| Jul, 2025 | $402.4 | $309.6 | $92.86 | 22,976,718.0 | +20.29% |
| Jun, 2025 | $327.2 | $295.8 | $31.39 | 16,608,369.0 | +7.07% |
| May, 2025 | $306.0 | $246.0 | $60.04 | 22,863,244.0 | +15.70% |
| Apr, 2025 | $273.6 | $205.9 | $67.74 | 22,379,369.0 | -2.51% |
| Mar, 2025 | $300.9 | $230.8 | $70.11 | 18,091,424.0 | +9.43% |
| Feb, 2025 | $279.2 | $236.5 | $42.74 | 14,255,538.0 | -9.05% |
| Jan, 2025 | $287.2 | $231.0 | $56.22 | 13,337,362.0 | +15.30% |
Alnylam Pharmaceuticals Inc Stock (ALNY) Price History 2024
| Month | High | Low | High - Low | Volume | % Change |
|---|---|---|---|---|---|
| Dec, 2024 | $258.1 | $233.0 | $25.12 | 10,684,548.0 | -6.74% |
| Nov, 2024 | $286.6 | $229.9 | $56.72 | 17,840,081.0 | -5.07% |
| Oct, 2024 | $304.4 | $263.6 | $40.74 | 18,022,421.0 | -3.07% |
| Sep, 2024 | $279.9 | $244.9 | $34.97 | 13,627,547.0 | +4.70% |
| Aug, 2024 | $287.5 | $245.2 | $42.38 | 23,179,017.0 | +10.62% |
| Jul, 2024 | $263.7 | $231.0 | $32.72 | 18,737,273.0 | -2.28% |
| Jun, 2024 | $252.9 | $147.2 | $105.6 | 32,495,091.0 | +63.71% |
| May, 2024 | $155.5 | $144.0 | $11.53 | 11,687,531.0 | +3.11% |
| Apr, 2024 | $159.3 | $142.0 | $17.37 | 10,373,533.0 | -3.68% |
| Mar, 2024 | $155.9 | $143.7 | $12.25 | 12,831,939.0 | -1.09% |
| Feb, 2024 | $176.3 | $143.5 | $32.83 | 28,112,069.0 | -12.62% |
| Jan, 2024 | $199.4 | $172.4 | $27.01 | 12,142,449.0 | -9.67% |
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