Protagonist Therapeutics (PTGX) Change in Taxes (2017 - 2025)

Protagonist Therapeutics has disclosed Change in Taxes across 8 years of filings, most recently posting -$1.9 million for Q2 2025.

• Change in Taxes for Q2 2025 came in at -$1.9 million, down 179.44% year-over-year; the trailing twelve-month figure through Dec 2025 was -$2.7 million (down 200.0% YoY), and the FY2025 annual result was -$2.7 million, down 200.0% from the prior year.
• Change in Taxes came in at -$1.9 million for Q2 2025 at Protagonist Therapeutics, down from -$800000.0 in the prior quarter.
• In the past five years, Change in Taxes ranged from a high of $3.3 million in Q1 2024 to a low of -$1.9 million in Q2 2025.
• The 4-year median for Change in Taxes is $33000.0 (2022), against an average of $164363.6.
• Peak annual rise in Change in Taxes reached 880.0% in 2021, while the deepest fall reached 446.44% in 2021.
• Protagonist Therapeutics' Change in Taxes stood at $921000.0 in 2021, then tumbled by 96.42% to $33000.0 in 2022, then surged by 4869.7% to $1.6 million in 2024, then plunged by 215.18% to -$1.9 million in 2025.
• The last three Change in Taxes figures came in at -$1.9 million (Q2 2025), -$800000.0 (Q1 2025), and $1.6 million (Q4 2024), per Business Quant data.