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Alnylam Pharmaceuticals (ALNY) Tax Rate (2019 - 2025)

Historic Tax Rate for Alnylam Pharmaceuticals (ALNY) over the last 10 years, with Q4 2025 value amounting to 29.31%.

  • Alnylam Pharmaceuticals' Tax Rate fell 861200.0% to 29.31% in Q4 2025 from the same period last year, while for Dec 2025 it was 3.27%, marking a year-over-year decrease of 230200.0%. This contributed to the annual value of 2.91% for FY2025, which is 233800.0% down from last year.
  • According to the latest figures from Q4 2025, Alnylam Pharmaceuticals' Tax Rate is 29.31%, which was down 861200.0% from 5.07% recorded in Q3 2025.
  • Alnylam Pharmaceuticals' 5-year Tax Rate high stood at 56.81% for Q4 2024, and its period low was 670.73% during Q1 2025.
  • In the last 5 years, Alnylam Pharmaceuticals' Tax Rate had a median value of 0.66% in 2021 and averaged 39.77%.
  • As far as peak fluctuations go, Alnylam Pharmaceuticals' Tax Rate soared by 569500bps in 2024, and later plummeted by -6670400bps in 2025.
  • Alnylam Pharmaceuticals' Tax Rate (Quarter) stood at 0.71% in 2021, then plummeted by -132bps to 0.23% in 2022, then skyrocketed by 42bps to 0.13% in 2023, then skyrocketed by 42846bps to 56.81% in 2024, then tumbled by -152bps to 29.31% in 2025.
  • Its Tax Rate stands at 29.31% for Q4 2025, versus 5.07% for Q3 2025 and 87.45% for Q2 2025.