Alkermes (ALKS) Tax Rate (2010 - 2026)

Alkermes (ALKS) has reported Tax Rate for 17 consecutive years, with 127.93% the latest figure, recorded in Q2 2026.

• On a quarterly basis, Tax Rate rose 11101.0% year-over-year to 127.93% in Q2 2026; TTM through Jun 2026 was 32.04%, a 1686.0% increase from a year earlier, with the FY2025 full-year figure at 17.08%, up 94.0% from the prior year.
• Tax Rate was 127.93% for Q2 2026 at Alkermes, up from 7.43% in the prior quarter.
• Over five years, Tax Rate peaked at 127.93% in Q2 2026 and troughed at 175.32% in Q4 2023.
• A 5-year average of 7.22% and a median of 15.0% in 2024 frame the typical range for Tax Rate.
• Across the five-year window, Tax Rate slumped 19870 bps in 2023 and soared 18951 bps in 2024, its largest moves.
• Over 5 years, Tax Rate stood at 23.38% in 2022, then slumped by 850 bps to 175.32% in 2023, then soared by 108 bps to 14.19% in 2024, then gained by 28 bps to 18.2% in 2025, then surged by 603 bps to 127.93% in 2026.
• The last three Tax Rate figures came in at 127.93% (Q2 2026), 7.43% (Q1 2026), and 18.2% (Q4 2025), per Business Quant data.