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Altimmune vs Lyell Immunopharma

Altimmune and Lyell Immunopharma are similar in size: $41,000 and $36,000 of revenue in their latest fiscal years. Altimmune grew faster (105.0% against -41.0%). Altimmune kept more of each dollar of sales as profit: a net margin of -214861.0% against -762355.6%.

Latest fiscal yearAltimmuneALT, 2025Lyell ImmunopharmaLYEL, 2025
Revenue $41,000 $36,000
Revenue growth 105.0% -41.0%
Net income −$88.1m −$274m
Operating margin — -748344.4%
Net margin -214861.0% -762355.6%
Return on equity -50.6% -87.0%
Free cash flow −$67.5m −$151m
Cash $43.8m $60.2m
Total debt $35.0m $0
Debt to equity — 0.0%
Dividend per share — —
Dividend yield — —
Share buybacks — —
Employees 57 161
Market value $398m $252m
Price vs our value range — —
Moat score 9 (Weak) 12 (Weak)
Insider trades, 12 months 11 buys, 0 sales 2 buys, 29 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.