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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 October 30, 2025, is $447.89.
  • 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 1,327% to $447.89 now.
  • The 52-week high stock price for ALNY is $495.55, representing a 10.64% increase from the current share price, occurred on October 20, 2025.
  • The 52-week low stock price for ALNY is $205.87, indicating a -54.04% decrease from the current share price, occurred on April 09, 2025.
  • The closing price of Alnylam Pharmaceuticals Inc (ALNY) stock in the beginning of 2024 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:
Date High Low High - Low Volume % Change
Oct 30, 2025 $472.4 $441.0 $31.34 751,756.0 -6.92%
Oct 29, 2025 $482.7 $467.1 $15.64 1,360,002.0 +1.19%
Oct 28, 2025 $484.6 $473.3 $11.32 836,264.0 -0.56%
Oct 27, 2025 $485.4 $465.6 $19.81 1,174,459.0 +3.27%
Oct 24, 2025 $469.3 $459.4 $9.91 771,271.0 -0.12%
Oct 23, 2025 $468.9 $456.9 $11.96 683,281.0 -0.19%
Oct 22, 2025 $480.5 $461.2 $19.32 949,876.0 -1.92%
Oct 21, 2025 $490.1 $471.4 $18.65 826,104.0 -3.51%
Oct 20, 2025 $495.6 $476.8 $18.73 949,160.0 +1.98%
Oct 17, 2025 $492.6 $476.4 $16.18 1,029,156.0 +0.12%
Oct 16, 2025 $488.4 $470.5 $17.93 966,037.0 +2.30%
Oct 15, 2025 $485.3 $467.5 $17.78 1,475,353.0 +0.19%
Oct 14, 2025 $479.7 $457.7 $21.96 1,435,660.0 +0.95%
Oct 13, 2025 $473.6 $453.8 $19.82 1,578,842.0 +0.98%
Oct 10, 2025 $460.6 $451.0 $9.60 936,959.0 +0.77%
Oct 09, 2025 $459.6 $448.8 $10.74 1,051,941.0 +1.39%
Oct 08, 2025 $464.5 $449.7 $14.74 929,842.0 -1.94%
Oct 07, 2025 $462.6 $448.9 $13.68 791,843.0 +1.68%
Oct 06, 2025 $458.7 $449.9 $8.77 935,668.0 -0.95%
Oct 03, 2025 $465.0 $448.5 $16.53 969,070.0 -1.01%
Oct 02, 2025 $461.5 $446.2 $15.35 1,268,884.0 +0.07%
Oct 01, 2025 $467.4 $453.3 $14.11 1,371,034.0 +1.02%
Sep 30, 2025 $459.3 $445.2 $14.08 1,379,433.0 +1.90%

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 2025

Month High Low High - Low Volume % Change
Oct, 2025 $495.6 $441.0 $54.53 23,042,462.0 -1.69%
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%

Alnylam Pharmaceuticals Inc Stock (ALNY) Price History 2023

Month High Low High - Low Volume % Change
Dec, 2023 $198.0 $166.0 $31.98 11,565,915.0 +13.77%
Nov, 2023 $174.0 $148.7 $25.27 12,495,105.0 +10.84%
Oct, 2023 $181.0 $148.1 $32.89 15,452,201.0 -14.29%
Sep, 2023 $212.1 $168.7 $43.43 14,218,968.0 -10.47%
Aug, 2023 $200.8 $178.6 $22.13 10,581,389.0 +1.24%
Jul, 2023 $218.9 $187.6 $31.23 10,303,521.0 +2.87%
Jun, 2023 $205.2 $184.1 $21.18 11,028,052.0 +2.66%
May, 2023 $212.5 $183.0 $29.47 13,002,606.0 -7.12%
Apr, 2023 $211.3 $192.4 $18.89 15,714,452.0 -0.56%
Mar, 2023 $205.1 $179.2 $25.95 19,322,896.0 +4.63%
Feb, 2023 $234.7 $187.5 $47.18 16,243,988.0 -15.44%
Jan, 2023 $242.4 $212.6 $29.75 15,310,313.0 -4.73%
$817.04
price down icon 0.78%
$653.60
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$184.34
price up icon 11.20%
biotechnology ONC
$311.25
price down icon 0.73%
$103.27
price down icon 0.08%
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