Alnylam Pharmaceuticals - 21 Year Stock Price History | ALNY

The latest closing stock price for Alnylam Pharmaceuticals as of May 29, 2025 is 292.90.

  • An investor who bought $1,000 worth of Alnylam Pharmaceuticals stock at the IPO in 2004 would have $47,735 today, roughly 48 times their original investment - a 20.33% compound annual growth rate over 21 years.
  • The all-time high Alnylam Pharmaceuticals stock closing price was 300.55 on October 16, 2024.
  • The Alnylam Pharmaceuticals 52-week high stock price is 304.39, which is 3.9% above the current share price.
  • The Alnylam Pharmaceuticals 52-week low stock price is 147.25, which is 49.7% below the current share price.
  • The average Alnylam Pharmaceuticals stock price for the last 52 weeks is 253.34.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.

Alnylam Pharmaceuticals - 21 Year Stock Price History | ALNY

  • An investor who bought $1,000 worth of Alnylam Pharmaceuticals stock at the IPO in 2004 would have $47,735 today, roughly 48 times their original investment - a 20.33% compound annual growth rate over 21 years.
  • The all-time high Alnylam Pharmaceuticals stock closing price was 300.55 on October 16, 2024.
  • The Alnylam Pharmaceuticals 52-week high stock price is 304.39, which is 3.9% above the current share price.
  • The Alnylam Pharmaceuticals 52-week low stock price is 147.25, which is 49.7% below the current share price.
  • The average Alnylam Pharmaceuticals stock price for the last 52 weeks is 253.34.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.