Protagonist Therapeutics PTGX
NASDAQ PTGX
$145.65 -3.15 (-2.12%)
As of: Sep 4, 2026 · 3:59 PM EDT

Protagonist Therapeutics (PTGX) Tax Rate (2018 - 2026)

Protagonist Therapeutics (PTGX) posted Tax Rate of 65.85% for Q1 2026, down 4222.46% sequentially from 1.52% in Q4 2025.

Analysis

Protagonist Therapeutics (PTGX) Tax Rate (2018 - 2026) Analysis & Trends

Protagonist Therapeutics has reported Tax Rate for 7 years, with the latest figure at 65.85% in Q1 2026.

  • Quarterly Tax Rate changed N/A year-over-year to 65.85% in Q1 2026, while the trailing twelve-month figure through Mar 2026 was 0.55% (down 103.0% YoY) and the FY2025 annual result came in at 0.65%, down 216.0% from the prior year.
  • Tax Rate fell to 65.85% in Q1 2026 per PTGX's latest filing, from 1.52% in the prior quarter.
  • Over five years, Tax Rate peaked at 2.24% in Q2 2024 and troughed at 65.85% in Q1 2026.
  • A 4-year average of 15.26% and a median of 0.34% in 2024 frame the typical range for Tax Rate.
  • The sharpest annual moves came in 2024 and 2025: Tax Rate surged 6217 bps in 2024, then slumped 303 bps in 2025.
  • Over 4 years, Tax Rate stood at 60.65% in 2023, then soared by 102 bps to 1.51% in 2024, then plunged by 201 bps to 1.52% in 2025, then plunged by 4222 bps to 65.85% in 2026.
  • According to Business Quant data, Tax Rate over the past three periods registered 65.85%, 1.52%, and 0.58% for Q1 2026, Q4 2025, and Q2 2025 respectively.
Peer Set

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Tax Rate (Qtr)
1 Vertex Pharmaceuticals 138.47 Bn 130.62 Bn 2.84 Bn 20.98%
2 Regeneron Pharmaceuticals 85.18 Bn 77.19 Bn 3.93 Bn 15.11%
3 Argenx Se 63.38 Bn 58.19 Bn 1.37 Bn -10.89%
4 Moderna 58.09 Bn 52.95 Bn 52.00 Mn -1.96%
5 Revolution Medicines 44.33 Bn 44.33 Bn - -
6 BeOne Medicines 40.02 Bn 34.92 Bn 1.53 Bn 24.15%
7 Alnylam Pharmaceuticals 35.57 Bn 32.27 Bn 992.69 Mn 7.49%
8 Royalty Pharma 28.45 Bn 27.61 Bn - -
9 Insmed 27.48 Bn 26.32 Bn 358.27 Mn -16.71%
10 Protagonist Therapeutics 9.61 Bn 9.61 Bn - 1.39%
Historic Data

Historic Data

Download Data
DateValue
Jun 30, 2026 1.39%
Mar 31, 2026 -65.85%
Dec 31, 2025 61.90%
Jun 30, 2025 -0.58%
Dec 31, 2024 42.23%
Sep 30, 2024 1.25%
Jun 30, 2024 2.24%
Mar 31, 2024 1.58%
Dec 31, 2023 -60.65%
Jun 30, 2020 -6.17%
Mar 31, 2020 -1.00%
Dec 31, 2019 -5.09%
Sep 30, 2019 0.62%
Jun 30, 2019 5.29%
Mar 31, 2019 -1.31%
Dec 31, 2018 5.46%