Weighted Average Number of Shares Outstanding, Basic of Altimmune, Inc. from 31 Mar 2014 to 31 Dec 2025

Taxonomy & unit
us-gaap: shares
Description
Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.
Summary
Altimmune, Inc. quarterly and annual Weighted Average Number of Shares Outstanding, Basic in shares history and change rate from 31 Mar 2014 to 31 Dec 2025.
  • Altimmune, Inc. Weighted Average Number of Shares Outstanding, Basic for the quarter ending 31 Dec 2025 was 88,104,132, a 24% increase year-over-year.
  • Altimmune, Inc. annual Weighted Average Number of Shares Outstanding, Basic for 2025 was 88,104,132, a 24% increase from 2024.
  • Altimmune, Inc. annual Weighted Average Number of Shares Outstanding, Basic for 2024 was 71,003,399, a 33% increase from 2023.
  • Altimmune, Inc. annual Weighted Average Number of Shares Outstanding, Basic for 2023 was 53,246,937, a 13% increase from 2022.
Source SEC data
View on sec.gov
Weighted Average Number of Shares Outstanding, Basic, Quarterly (shares)
Weighted Average Number of Shares Outstanding, Basic, YoY Quarterly Change (%)
Weighted Average Number of Shares Outstanding, Basic, Annual (shares)
Weighted Average Number of Shares Outstanding, Basic, YoY Annual Change (%)

Altimmune, Inc. Quarterly Weighted Average Number of Shares Outstanding, Basic (shares)

Period TTM Value Value YoY Chg Change % Start Date End Date Report Filed Fiscal Year Fiscal Period
Q4 2025 88,104,132 +17,100,733 +24% 01 Oct 2025 31 Dec 2025 10-K 06 Mar 2026 2025 FY
Q3 2025 89,418,028 +18,333,241 +26% 01 Jul 2025 30 Sep 2025 10-Q 06 Nov 2025 2025 Q3
Q2 2025 81,477,548 +10,553,177 +15% 01 Apr 2025 30 Jun 2025 10-Q 12 Aug 2025 2025 Q2
Q1 2025 75,547,746 +4,746,033 +6.7% 01 Jan 2025 31 Mar 2025 10-Q 13 May 2025 2025 Q1
Q4 2024 71,003,399 +17,756,462 +33% 01 Oct 2024 31 Dec 2024 10-K 06 Mar 2026 2025 FY
Q3 2024 71,084,787 +17,451,433 +33% 01 Jul 2024 30 Sep 2024 10-Q 06 Nov 2025 2025 Q3
Q2 2024 70,924,371 +20,232,813 +40% 01 Apr 2024 30 Jun 2024 10-Q 12 Aug 2025 2025 Q2
Q1 2024 70,801,713 +20,676,028 +41% 01 Jan 2024 31 Mar 2024 10-Q 13 May 2025 2025 Q1
Q4 2023 53,246,937 +6,320,588 +13% 01 Oct 2023 31 Dec 2023 10-K 27 Feb 2025 2024 FY
Q3 2023 53,633,354 +4,346,819 +8.8% 01 Jul 2023 30 Sep 2023 10-Q 12 Nov 2024 2024 Q3
Q2 2023 50,691,558 +3,188,959 +6.7% 01 Apr 2023 30 Jun 2023 10-Q 08 Aug 2024 2024 Q2
Q1 2023 50,125,685 +6,156,204 +14% 01 Jan 2023 31 Mar 2023 10-Q 09 May 2024 2024 Q1
Q4 2022 46,926,349 +5,642,851 +14% 01 Oct 2022 31 Dec 2022 10-K 27 Mar 2024 2023 FY
Q3 2022 49,286,535 +7,915,767 +19% 01 Jul 2022 30 Sep 2022 10-Q 07 Nov 2023 2023 Q3
Q2 2022 47,502,599 +6,145,956 +15% 01 Apr 2022 30 Jun 2022 10-Q 10 Aug 2023 2023 Q2
Q1 2022 43,969,481 +5,054,491 +13% 01 Jan 2022 31 Mar 2022 10-Q 11 May 2023 2023 Q1
Q4 2021 41,283,498 01 Oct 2021 31 Dec 2021 10-K 28 Feb 2023 2022 FY
Q3 2021 41,370,768 01 Jul 2021 30 Sep 2021 10-Q 10 Nov 2022 2022 Q3
Q2 2021 41,356,643 01 Apr 2021 30 Jun 2021 10-Q 11 Aug 2022 2022 Q2
Q1 2021 38,914,990 01 Jan 2021 31 Mar 2021 10-Q 12 May 2022 2022 Q1
Q4 2016 65,306,962 +1,320,949 +2.1% 01 Oct 2016 31 Dec 2016 10-K 14 Mar 2017 2016 FY
Q3 2016 65,001,584 +813,966 +1.3% 01 Jul 2016 30 Sep 2016 10-Q 04 Nov 2016 2016 Q3
Q2 2016 64,737,820 +991,986 +1.6% 01 Apr 2016 30 Jun 2016 10-Q 04 Aug 2016 2016 Q2
Q1 2016 64,404,396 +771,106 +1.2% 01 Jan 2016 31 Mar 2016 10-Q 09 May 2016 2016 Q1
Q4 2015 63,986,013 01 Oct 2015 31 Dec 2015 10-K 14 Mar 2017 2016 FY
Q3 2015 64,187,618 01 Jul 2015 30 Sep 2015 10-Q 04 Nov 2016 2016 Q3
Q2 2015 63,745,834 01 Apr 2015 30 Jun 2015 10-Q 04 Aug 2016 2016 Q2
Q1 2015 63,633,290 +10,589,171 +20% 01 Jan 2015 31 Mar 2015 10-Q 09 May 2016 2016 Q1
Q1 2014 53,044,119 01 Jan 2014 31 Mar 2014 10-Q 07 May 2015 2015 Q1

Altimmune, Inc. Annual Weighted Average Number of Shares Outstanding, Basic (shares)

Period Value YoY Chg Change % Start Date End Date Report Filed Fiscal Year Fiscal Period
2025 88,104,132 +17,100,733 +24% 01 Jan 2025 31 Dec 2025 10-K 06 Mar 2026 2025 FY
2024 71,003,399 +17,756,462 +33% 01 Jan 2024 31 Dec 2024 10-K 06 Mar 2026 2025 FY
2023 53,246,937 +6,320,588 +13% 01 Jan 2023 31 Dec 2023 10-K 27 Feb 2025 2024 FY
2022 46,926,349 +5,642,851 +14% 01 Jan 2022 31 Dec 2022 10-K 27 Mar 2024 2023 FY
2021 41,283,498 +15,646,475 +61% 01 Jan 2021 31 Dec 2021 10-K 28 Feb 2023 2022 FY
2020 25,637,023 01 Jan 2020 31 Dec 2020 10-K 15 Mar 2022 2021 FY
2016 65,306,962 +1,320,949 +2.1% 01 Jan 2016 31 Dec 2016 10-K 14 Mar 2017 2016 FY
2015 63,986,013 +6,450,688 +11% 01 Jan 2015 31 Dec 2015 10-K 14 Mar 2017 2016 FY
2014 57,535,325 01 Jan 2014 31 Dec 2014 10-K 14 Mar 2017 2016 FY
* An asterisk sign (*) next to the value indicates that the value is likely invalid.