Altimmune, Inc. (ALT): Shares Outstanding

Annual figures by period end, from SEC filings.

110.88M
As of 2025-12-31
194.47M
As of 2026-06-30
2010-12-31: 46.24M2011-12-31: 48.24M2012-12-31: 48.35M2013-12-31: 52.30M2014-12-31: 63.60M2015-12-31: 64.38M2016-12-31: 6.92M2017-12-31: 608.5K2018-12-31: 9.08M2019-12-31: 15.31M2020-12-31: 37.14M2021-12-31: 40.99M2022-12-31: 49.20M2023-12-31: 70.68M2024-12-31: 72.35M2025-12-31: 110.88M110.88M
2010-12-31 Shares Outstanding (shares) 2025-12-31
Period endedShares OutstandingChange YoYSource filing
2025-12-31110.88M+53.3%2026-03-06, Balance as of period end
2024-12-3172.35M+2.4%2026-03-06, Balance as of period end
2023-12-3170.68Mn/c2025-02-27, Balance as of period end
2022-12-3149.20M+20.0%2024-03-27, Balance as of period end
2021-12-3140.99M+10.4%2023-02-28, Balance as of period end
2020-12-3137.14M+142.6%2022-03-15, Balance as of period end
2019-12-3115.31M+68.7%2021-02-25, Balance as of period end
2018-12-319.08Mn/m2020-03-27, Balance as of period end
2017-12-31608.5K-91.2%2019-04-01, Balance as of period end
2016-12-316.92M-89.3%2018-04-02, Balance as of period end
2015-12-3164.38M+1.2%2017-03-14, Balance as of period end
2014-12-3163.60M+21.6%2016-03-11, Balance as of period end
2013-12-3152.30M+8.2%2015-03-11, Balance as of period end
2012-12-3148.35M+0.2%2014-03-11, Balance as of period end
2011-12-3148.24M+4.3%2013-03-14, Balance as of period end
2010-12-3146.24Mn/a2012-03-08, Balance as of period end