Amylyx Pharmaceuticals (AMLX) Tax Rate (2022 - 2025)

Amylyx Pharmaceuticals (AMLX) has 4 years of Tax Rate data on record, last reported at 0.04% in Q4 2025.

  • For Q4 2025, Tax Rate fell 223.0% year-over-year to 0.04%; the TTM value through Dec 2025 reached 41.07%, down 4128.0%, while the annual FY2025 figure was 41.07%, 4128.0% down from the prior year.
  • Tax Rate reached 0.04% in Q4 2025 per AMLX's latest filing, down from 2.27% in the prior quarter.
  • Across five years, Tax Rate topped out at 44.33% in Q4 2023 and bottomed at 12.12% in Q1 2023.
  • Average Tax Rate over 4 years is 4.3%, with a median of 0.04% recorded in 2025.
  • Peak YoY movement for Tax Rate: soared 4567bps in 2023, then plummeted -4205bps in 2024.
  • A 4-year view of Tax Rate shows it stood at 1.34% in 2022, then soared by 3409bps to 44.33% in 2023, then crashed by -95bps to 2.27% in 2024, then tumbled by -98bps to 0.04% in 2025.
  • Per Business Quant database, its latest 3 readings for Tax Rate were 0.04% in Q4 2025, 2.27% in Q4 2024, and 0.2% in Q1 2024.