American Superconductor (AMSC) Tax Rate (2009 - 2025)

American Superconductor's Tax Rate history runs 17 years deep, the most recent figure standing at 2068.84% for Q4 2025.

• Quarterly Tax Rate fell 206465.0% year-over-year to 2068.84% in Q4 2025, while the trailing twelve-month figure through Dec 2025 was 579.16% (down 88352.0% YoY) and the FY2025 annual result came in at 194.85%, down 19199.0% from the prior year.
• Tax Rate was 2068.84% for Q4 2025 at American Superconductor, down from 2.05% in the prior quarter.
• Across five years, Tax Rate topped out at 4844.66% in Q3 2024 and bottomed at 2068.84% in Q4 2025.
• A 5-year average of 142.45% and a median of 0.47% in 2024 frame the typical range for Tax Rate.
• Annual changes were most pronounced in 2024 — Tax Rate surged 484886 bps — and 2025, when it sank 484261 bps.
• American Superconductor's Tax Rate stood at 0.02% in 2021, then tumbled by 5707 bps to 1.34% in 2022, then sank by 369 bps to 6.31% in 2023, then jumped by 34 bps to 4.19% in 2024, then slumped by 49325 bps to 2068.84% in 2025.
• Business Quant data shows AMSC's Tax Rate at 2068.84% in Q4 2025, 2.05% in Q3 2025, and 2.87% in Q2 2025.