Altimmune (ALT)
What the price implies
A reverse DCF: instead of guessing a fair value, it asks what growth today's price already assumes. How it works.
Fundamental grade
Five factors scored 1 to 9 from ALT's latest numbers, weighted into one grade. It describes the business, not whether the stock is a buy.
Key numbers
Results from SEC filings
Fiscal years, from Altimmune's 10-K filings. Ten years of the full income statement, balance sheet and cash flow.
| Fiscal year | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|
| Revenue | $4M | -$68,000 | $426,000 | $20,000 | $41,000 |
| Net income | -$97M | -$85M | -$88M | -$95M | -$88M |
| Free cash flow | -$90M | -$63M | -$76M | — | -$68M |
| EPS (diluted) | -$2.35 | -$1.81 | -$1.66 | -$1.34 | -$1.00 |
| Operating margin | -2197.4% | 129029.4% | -22518.5% | -515860.0% | -230461.0% |
Where the revenue comes from
Revenue by products, fiscal 2018. Every breakdown, year by year.
Superinvestors who own ALT
From each investor's latest 13F filing (what a 13F shows). 2 of the investors we track hold it.
| Investor | Last quarter | Value | % of portfolio | Quarter |
|---|---|---|---|---|
| Andreas Halvorsen Viking Global Investors |
New position | $20M | 0.06% | Q2 2026 |
| Cliff Asness AQR Capital Management |
Added | $4M | 0.00% | Q2 2026 |
Insider buying
Open-market purchases by Altimmune's executives and directors in the last 12 months, from SEC Form 4 filings. What insider buying tells you. Every purchase since records began.
| Date | Insider | Shares | Price | Value |
|---|---|---|---|---|
| Mar 6, 2026 | Gregory L Weaver |
5,000 | $3.54 | $17,700 |
| Mar 6, 2026 | Jerome Benedict Durso |
20,000 | $3.54 | $70,800 |
| Jan 8, 2026 | Wayne Pisano |
5,000 | $4.08 | $20,400 |
| Dec 29, 2025 | Diane Jorkasky |
527 | $3.80 | $2,003 |
| Dec 23, 2025 | John Gill |
12,500 | $4.10 | $51,250 |
| Dec 22, 2025 | Jerome Benedict Durso |
12,500 | $4.13 | $51,625 |
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In the full deep dive
Questions
Are Altimmune insiders buying the stock?
6 open-market insider purchases of ALT in the last 12 months, from SEC Form 4 filings.
Which superinvestors own Altimmune?
2 of the superinvestors Investingly tracks hold ALT in their latest 13F, including Andreas Halvorsen, Cliff Asness.
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Prices and ratios as of Oct 11, 2026; statements from SEC filings. Information only, not investment advice. Superinvestor holdings come from 13F filings, which are filed up to 45 days after each quarter ends.