Growth Metrics

Alkermes (ALKS) Tax Rate (2016 - 2026)

Alkermes has reported Tax Rate over the past 16 years, most recently at 18.28% for Q4 2025.

  • Quarterly Tax Rate rose 2791.0% to 18.28% in Q4 2025 from the year-ago period, while the trailing twelve-month figure was 17.06% through Dec 2025, up 1005.0% year-over-year, with the annual reading at 17.08% for FY2025, 1008.0% up from the prior year.
  • Tax Rate was 18.28% for Q4 2025 at Alkermes, up from 17.85% in the prior quarter.
  • Over five years, Tax Rate peaked at 58.2% in Q2 2021 and troughed at 20.18% in Q1 2021.
  • The 5-year median for Tax Rate is 10.57% (2022), against an average of 8.84%.
  • The largest YoY upside for Tax Rate was 7246bps in 2021 against a maximum downside of -11536bps in 2021.
  • A 5-year view of Tax Rate shows it stood at 1.43% in 2021, then skyrocketed by 1124bps to 17.47% in 2022, then tumbled by -148bps to 8.33% in 2023, then decreased by -16bps to 9.64% in 2024, then soared by 290bps to 18.28% in 2025.
  • Per Business Quant, the three most recent readings for ALKS's Tax Rate are 18.28% (Q4 2025), 17.85% (Q3 2025), and 16.88% (Q2 2025).