SuperworthAltimmune shares outstanding ALT
Diluted shares outstanding, averaged over each quarter, from 2010.
- Latest quarter, to Jun 30, 2026
- 185.4M
- On a year earlier
- +127.6%
- more shares
Altimmune had 185.4M diluted shares outstanding on average in Q2 FY26, the quarter to Jun 30, 2026.
That is 127.6% more than a year earlier, so each share owns a little less of the company.
Shares outstanding over time
Fiscal year by fiscal year
| Fiscal year | Shares, fourth quarter | Change |
|---|---|---|
| FY2025 | 105.6M | +48% |
| FY2024 | 71.2M | +22% |
| FY2023 | 58.4M | +17% |
| FY2022 | 50M | +17% |
| FY2021 | 42.6M | +17% |
| FY2020 | 36.3M | +141% |
| FY2019 | 15M | +83% |
| FY2018 | 8.2M | +1347% |
| FY2017 | 566.5K | +146% |
| FY2016 | 230.4K | −99% |
| FY2015 | 21.5M | +2% |
| FY2014 | 21.1M | +21% |
| FY2013 | 17.4M | +8% |
| FY2012 | 16.1M | +0% |
| FY2011 | 16.1M | +22% |
Each fiscal year is the twelve months to its fourth quarter, shown as the fourth quarter's average share count.
Quarter by quarter
| Quarter | Ended | Shares outstanding | On a year earlier |
|---|---|---|---|
| Q2 FY26 | 185.4M | +128% | |
| Q1 FY26 | 124.5M | +65% | |
| Q4 FY25 | 105.6M | +48% | |
| Q3 FY25 | 89.4M | +26% | |
| Q2 FY25 | 81.5M | +15% | |
| Q1 FY25 | 75.5M | +7% | |
| Q4 FY24 | 71.2M | +22% | |
| Q3 FY24 | 71.1M | +33% | |
| Q2 FY24 | 70.9M | +40% | |
| Q1 FY24 | 70.8M | +41% | |
| Q4 FY23 | 58.4M | +17% | |
| Q3 FY23 | 53.6M | +9% |
What the shares outstanding tells you
Diluted shares outstanding, averaged over the period. Fewer shares means each one owns more of the company.
A falling count usually means buybacks. A rising one means stock pay, acquisitions paid in shares or new shares sold.
More on Altimmune
Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.