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.

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.

#	Company	Market Cap	Enterprise Value	Gross Profit (Qtr)	Tax Rate (Qtr)
1	Vertex Pharmaceuticals	128.13 Bn	120.28 Bn	2.84 Bn	20.98%
2	Regeneron Pharmaceuticals	112.33 Bn	104.33 Bn	3.93 Bn	15.11%
3	Argenx Se	53.24 Bn	48.05 Bn	1.41 Bn	10.91%
4	Revolution Medicines	43.64 Bn	43.64 Bn	-	-
5	BeOne Medicines	39.27 Bn	34.17 Bn	1.53 Bn	24.15%
6	MindWalk Holdings	35.32 Bn	35.31 Bn	1.82 Bn	-9.47%
7	Royalty Pharma	33.72 Bn	35.84 Bn	-	-
8	Alnylam Pharmaceuticals	30.58 Bn	27.27 Bn	992.69 Mn	7.49%
9	Insmed	27.01 Bn	25.85 Bn	358.27 Mn	-16.71%
10	Protagonist Therapeutics	10.03 Bn	10.03 Bn	-	1.39%

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