Altimmune annual shares outstanding
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2025
Altimmune Shares Outstanding History (ALT)
Altimmune reported 110.9M shares outstanding at the end of fiscal 2025.
View full Altimmune company overviewAltimmune annual shares outstanding history
| Fiscal year | Period ended | Shares outstanding | Change | Growth |
|---|---|---|---|---|
| 2025 | 2025-12-31 | 110.9M | 38.5M | +53.25% |
| 2024 | 2024-12-31 | 72.4M | 1.7M | +2.37% |
| 2023 | 2023-12-31 | 70.7M | 21.5M | +43.65% |
| 2022 | 2022-12-31 | 49.2M | 8.2M | +20.02% |
| 2021 | 2021-12-31 | 41.0M | 3.9M | +10.37% |
| 2020 | 2020-12-31 | 37.1M | 21.8M | +142.57% |
| 2019 | 2019-12-31 | 15.3M | 6.2M | +68.67% |
| 2018 | 2018-12-31 | 9.1M | 8.5M | +1391.91% |
| 2017 | 2017-12-31 | 608,499 | 400,982.88 | +193.23% |
| 2016 | 2016-12-31 | 207,516.12 | −1.7M | −89.26% |
| 2015 | 2015-12-31 | 1.9M | 23,363.49 | +1.22% |
| 2014 | 2014-12-31 | 1.9M | 338,971.71 | +21.60% |
| 2013 | 2013-12-31 | 1.6M | 118,547.85 | +8.17% |
| 2012 | 2012-12-31 | 1.5M | 3,494.37 | +0.24% |
| 2011 | 2011-12-31 | 1.4M | 59,937.84 | +4.32% |
| 2010 | 2010-12-31 | 1.4M | — | — |
Altimmune quarterly shares outstanding
Q4.10
Q2.11
Q3.11
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Q3.12
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Q4.17
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Q2.18
Q3.18
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Q2.19
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Q2.20
Q3.20
Q4.20
Q1.21
Q2.21
Q3.21
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Q3.22
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Q1.23
Q2.23
Q3.23
Q4.23
Q1.24
Q2.24
Q3.24
Q4.24
Q1.25
Q2.25
Q3.25
Q4.25
Q1.26
Q2.26
| Fiscal quarter | Period ended | Shares outstanding | Change | YoY change |
|---|---|---|---|---|
| Q2 2026 | 2026-06-30 | 194.5M | 109.4M | +128.59% |
| Q1 2026 | 2026-03-31 | 130.2M | 52.4M | +67.32% |
| Q4 2025 | 2025-12-31 | 110.9M | 38.5M | +53.25% |
| Q3 2025 | 2025-09-30 | 95.6M | 24.5M | +34.41% |
| Q2 2025 | 2025-06-30 | 85.1M | 14.0M | +19.75% |
| Q1 2025 | 2025-03-31 | 77.8M | 6.9M | +9.77% |
| Q4 2024 | 2024-12-31 | 72.4M | 1.7M | +2.37% |
| Q3 2024 | 2024-09-30 | 71.1M | 18.3M | +34.56% |
| Q2 2024 | 2024-06-30 | 71.0M | 18.4M | +34.92% |
| Q1 2024 | 2024-03-31 | 70.9M | 21.6M | +43.85% |
| Q4 2023 | 2023-12-31 | 70.7M | 21.5M | +43.65% |
| Q3 2023 | 2023-09-30 | 52.9M | 3.7M | +7.52% |
| Q2 2023 | 2023-06-30 | 52.7M | 6.3M | +13.55% |
| Q1 2023 | 2023-03-31 | 49.3M | 6.1M | +14.04% |
| Q4 2022 | 2022-12-31 | 49.2M | 8.2M | +20.02% |
| Q3 2022 | 2022-09-30 | 49.2M | 9.5M | +23.82% |
| Q2 2022 | 2022-06-30 | 46.4M | 6.7M | +16.83% |
| Q1 2022 | 2022-03-31 | 43.2M | 5.0M | +12.97% |
| Q4 2021 | 2021-12-31 | 41.0M | 3.9M | +10.37% |
| Q3 2021 | 2021-09-30 | 39.7M | 6.6M | +20.05% |
| Q2 2021 | 2021-06-30 | 39.7M | 13.1M | +49.48% |
| Q1 2021 | 2021-03-31 | 38.3M | 22.9M | +149.08% |
| Q4 2020 | 2020-12-31 | 37.1M | 21.8M | +142.57% |
| Q3 2020 | 2020-09-30 | 33.1M | 17.7M | +115.63% |
| Q2 2020 | 2020-06-30 | 26.6M | 13.1M | +97.42% |
| Q1 2020 | 2020-03-31 | 15.4M | 1.9M | +14.19% |
| Q4 2019 | 2019-12-31 | 15.3M | 6.2M | +68.67% |
| Q3 2019 | 2019-09-30 | 15.3M | 13.6M | +788.84% |
| Q2 2019 | 2019-06-30 | 13.5M | 12.3M | +1099.98% |
| Q1 2019 | 2019-03-31 | 13.5M | 12.8M | +1915.05% |
| Q4 2018 | 2018-12-31 | 9.1M | 8.5M | +1571.53% |
| Q3 2018 | 2018-09-30 | 1.7M | 1.3M | +268.09% |
| Q2 2018 | 2018-06-30 | 1.1M | 658,172.22 | +142.23% |
| Q1 2018 | 2018-03-31 | 667,510.11 | −1.4M | −67.67% |
| Q4 2017 | 2017-12-31 | 543,110.73 | −1.5M | −73.27% |
| Q3 2017 | 2017-09-30 | 468,812.43 | −1.5M | −76.47% |
| Q2 2017 | 2017-06-30 | 462,746.73 | −1.5M | −76.19% |
| Q1 2017 | 2017-03-31 | 2.1M | 131,114.1 | +6.78% |
| Q4 2016 | 2016-12-31 | 2.0M | 100,331.16 | +5.19% |
| Q3 2016 | 2016-09-30 | 2.0M | 61,925.97 | +3.21% |
| Q2 2016 | 2016-06-30 | 1.9M | 26,209.59 | +1.37% |
| Q1 2016 | 2016-03-31 | 1.9M | 23,111.97 | +1.21% |
| Q4 2015 | 2015-12-31 | 1.9M | 23,363.49 | +1.22% |
| Q3 2015 | 2015-09-30 | 1.9M | 64,285.44 | +3.44% |
| Q2 2015 | 2015-06-30 | 1.9M | 251,594.49 | +15.10% |
| Q1 2015 | 2015-03-31 | 1.9M | 297,018.63 | +18.41% |
| Q4 2014 | 2014-12-31 | 1.9M | 338,966.31 | +21.60% |
| Q3 2014 | 2014-09-30 | 1.9M | 297,552.18 | +18.97% |
| Q2 2014 | 2014-06-30 | 1.7M | 130,553.73 | +8.50% |
| Q1 2014 | 2014-03-31 | 1.6M | 160,716.66 | +11.06% |
| Q4 2013 | 2013-12-31 | 1.6M | 118,553.25 | +8.17% |
| Q3 2013 | 2013-09-30 | 1.6M | 118,547.88 | +8.17% |
| Q2 2013 | 2013-06-30 | 1.5M | 84,838.05 | +5.85% |
| Q1 2013 | 2013-03-31 | 1.5M | 3,059.19 | +0.21% |
| Q4 2012 | 2012-12-31 | 1.5M | 3,494.37 | +0.24% |
| Q3 2012 | 2012-09-30 | 1.5M | 4,558.47 | +0.32% |
| Q2 2012 | 2012-06-30 | 1.5M | 4,558.44 | +0.32% |
| Q1 2012 | 2012-03-31 | 1.4M | 62,287.98 | +4.49% |
| Q4 2011 | 2011-12-31 | 1.4M | — | — |
| Q3 2011 | 2011-09-30 | 1.4M | — | — |
| Q2 2011 | 2011-06-30 | 1.4M | — | — |
| Q4 2010 | 2010-12-31 | 1.4M | — | — |
Altimmune shares outstanding trends
Over the last five reported fiscal years, Altimmune's shares outstanding moved from 37.1M to 110.9M, a change of 73.7M. The latest reported quarter, Q2 2026, shows 194.5M.
About the metric
What shares outstanding means
Shares outstanding is the number of common shares held by investors at a reporting-period end. The count can change because of stock issuance, repurchases, conversions, acquisitions, or stock splits.
Calculation and source
SEC-reported period-end shares
TickerStat displays period-end common shares from SEC filings and adjusts older values to the current share basis when SEC-reported stock-split conversion ratios are available. Values remain as reported when no split ratio is available. Fiscal periods can differ from calendar years, so exact period-end dates are included.
Review Altimmune filings at SEC.gov ↗