Spero Therapeutics (SPRO) Change in Taxes (2023 - 2026)

Spero Therapeutics (SPRO) has 4 years of Change in Taxes data on file, last reported at -$220000.0 in Q1 2026.

• For the quarter ending Q1 2026, Change in Taxes changed N/A year-over-year to -$220000.0; the trailing twelve-month figure through Mar 2026 stood at -$11000.0 (up 99.46% YoY), and the FY2025 full-year result was $209000.0, up 198.12% from the prior year.
• Change in Taxes for Q1 2026 stood at -$220000.0, down from $220000.0 in the prior quarter.
• Across five years, Change in Taxes topped out at $220000.0 in Q4 2025 and bottomed at -$1.8 million in Q4 2023.
• The 4-year median for Change in Taxes is -$115500.0 (2025), against an average of -$341333.3.
• The widest annual swing landed in 2024, when Change in Taxes soared 104.22%; it then surged 185.71% in 2025.
• A 4-year view of Change in Taxes shows it stood at -$1.8 million in 2023, then soared by 104.22% to $77000.0 in 2024, then soared by 185.71% to $220000.0 in 2025, then sank by 200.0% to -$220000.0 in 2026.
• The last three Change in Taxes figures came in at -$220000.0 (Q1 2026), $220000.0 (Q4 2025), and -$11000.0 (Q2 2025), per Business Quant data.

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