Protagonist Therapeutics, Inc. (PTGX)

Protagonist Therapeutics is a clinical-stage biopharmaceutical company developing peptide-based drugs for hematologic and inflammatory diseases. Its pipeline includes rusfertide for polycythemia vera and oral peptide candidates for immune-mediated conditions, some advanced with larger pharma partners. The company focuses on constrained peptides designed for potency, selectivity and convenient dosing.

Market
Nasdaq
Sector
Healthcare
Trend
Strong uptrend
Last close
148.8 (+1.86% on the day)
MA50
140.53
MA200
105.76
52-week range
56.19–158.62
Market cap
9.6B USD
P/E
144.85
Dividend yield
0%
Data as of
2026-09-03
Quarterly revenue and earnings, millions of USD
QuarterRevenueYoY %EarningsYoY %
Q1 202528.3-11.7
Q2 20255.5-34.8
Q3 20254.7-39.3
Q4 20257.4-44.4
Q1 202656.499%3.8
Q2 2026213.53,749.2%162.8

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