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Alkermes (ALKS) Tax Rate: 2010-2025

Historic Tax Rate for Alkermes (ALKS) over the last 4 years, with Sep 2025 value amounting to 17.87%.

  • Alkermes' Tax Rate rose 205.00% to 17.87% in Q3 2025 from the same period last year, while for Sep 2025 it was 15.68%, marking a year-over-year change of. This contributed to the annual value of 16.14% for FY2024, which is N/A change from last year.
  • According to the latest figures from Q3 2025, Alkermes' Tax Rate is 17.87%, which was up 5.58% from 16.92% recorded in Q2 2025.
  • Alkermes' Tax Rate's 5-year high stood at 58.20% during Q2 2021, with a 5-year trough of 0.97% in Q2 2023.
  • In the last 3 years, Alkermes' Tax Rate had a median value of 15.82% in 2024 and averaged 12.77%.
  • Over the last 5 years, Alkermes' Tax Rate had its largest YoY gain of 2,196bps in 2022, and its largest YoY loss of 4,883bps in 2022.
  • Quarterly analysis of 5 years shows Alkermes' Tax Rate stood at 1.43% in 2021, then surged by 2,196bps to 23.38% in 2022, then plummeted by 374bps to 1.29% in 2023, then spiked by 1,452bps to 14.19% in 2024, then skyrocketed by 205bps to 17.87% in 2025.
  • Its Tax Rate was 17.87% in Q3 2025, compared to 16.92% in Q2 2025 and 11.87% in Q1 2025.