Alkermes (ALKS) Tax Rate (2010 - 2026)

Alkermes (ALKS) has 17 years of Tax Rate data on file, last reported at 7.43% in Q1 2026.

• Tax Rate for Q1 2026 came in at 7.43%, down 1920.0% year-over-year; the trailing twelve-month figure through Mar 2026 was 25.14% (up 935.0% YoY), and the FY2025 annual result was 17.08%, up 94.0% from the prior year.
• Tax Rate eased to 7.43% in Q1 2026 per ALKS's latest filing, from 18.2% in the prior quarter.
• Over five years, Tax Rate peaked at 20.21% in Q1 2022 and troughed at 8.33% in Q4 2023.
• A 5-year average of 9.47% and a median of 14.22% in 2024 frame the typical range for Tax Rate.
• On a YoY basis, Tax Rate climbed as much as 4040 bps in 2022 and fell as far as 4883 bps in 2022.
• A 5-year view of Tax Rate shows it stood at 15.4% in 2022, then sank by 154 bps to 8.33% in 2023, then surged by 271 bps to 14.22% in 2024, then gained by 28 bps to 18.2% in 2025, then plunged by 141 bps to 7.43% in 2026.
• Business Quant data shows ALKS's Tax Rate at 7.43% in Q1 2026, 18.2% in Q4 2025, and 17.87% in Q3 2025.