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Protagonist Therapeutics vs Vir Biotechnology

Vir Biotechnology is the larger business, with $68.6m of revenue in fiscal 2025 against $46.0m for Protagonist Therapeutics (1.5 times as much). Vir Biotechnology grew faster (-7.6% against -89.4%). Protagonist Therapeutics kept more of each dollar of sales as profit: a net margin of -282.8% against -638.9%. Protagonist Therapeutics carries less debt relative to equity (0.0% against 0.0%).

Latest fiscal yearProtagonist TherapeuticsPTGX, 2025Vir BiotechnologyVIR, 2025
Revenue $46.0m $68.6m
Revenue growth -89.4% -7.6%
Net income −$130m −$438m
Operating margin -343.6% -699.2%
Net margin -282.8% -638.9%
Return on equity -20.2% -45.7%
Free cash flow $56.1m −$397m
Cash $128m $232m
Total debt $0 $0
Debt to equity 0.0% 0.0%
Dividend per share — —
Dividend yield — —
Share buybacks — —
Employees 132 367
Market value $9.14bn $1.91bn
Price vs our value range Above our value range —
Moat score 14 (Weak) 27 (Weak)
Insider trades, 12 months 0 buys, 37 sales 0 buys, 35 sales

Each figure is from the company's latest annual report and links to the page it comes from. Fiscal years can end on different dates. Market value and the value verdict use the delayed price shown on the stock pages. Not a recommendation.

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Figures from each company's latest annual report filed with the SEC (10-K or 20-F), as reported, with the fiscal year shown. Not investment advice. How we read filings: methodology.