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Altimmune, Inc. (ALT) stock

ALTNasdaqPharmaceutical PreparationsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 12, 2026Score 4/30
$1.61−0.32 (-16.58%)

Close on Nov 12, 2026Market cap $313.17MP/E –Yield –

Altimmune operating margin

Operating margin is operating income as a percentage of revenue.

Altimmune's operating margin for the twelve months ending Dec 31, 2025 was -230461.0%. For fiscal 2025 it was -230461.0%, against -515860.0% the year before. The highest annual figure on record is -48.3% in fiscal 2011.

Annual operating margin

PeriodPeriod endValueChange (pts)
FY2025Dec 31, 2025-230461.0%+285399.0
FY2024Dec 31, 2024-515860.0%−493341.5
FY2023Dec 31, 2023-22518.5%−20320.9
FY2021Dec 31, 2021-2197.6%−1528.1
FY2020Dec 31, 2020-669.5%−299.5
FY2019Dec 31, 2019-370.0%+44.6
FY2018Dec 31, 2018-414.6%+70.1
FY2017Dec 31, 2017-484.7%−141.9
FY2016Dec 31, 2016-342.7%−294.4
FY2011Dec 31, 2011-48.3%+63.9
FY2010Dec 31, 2010-112.2%–

Quarterly operating margin

Change is against the same quarter a year earlier.

PeriodPeriod endValueChange (pts)
Q4 FY2025Dec 31, 2025-111126.9%+386193.1
Q3 FY2025Sep 30, 2025-417180.0%+78160.0
Q2 FY2025Jun 30, 2025-458440.0%+76460.0
Q1 FY2025Mar 31, 2025-436300.0%+99580.0
Q4 FY2024Dec 31, 2024-497320.0%−406447.0
Q3 FY2024Sep 30, 2024-495340.0%−489113.5
Q2 FY2024Jun 30, 2024-534900.0%−234783.3
Q1 FY2024Mar 31, 2024-535880.0%−432265.7
Q4 FY2023Dec 31, 2023-90873.0%+1146727.0
Q3 FY2023Sep 30, 2023-6226.5%+248711.0
Q2 FY2023Jun 30, 2023-300116.7%−239182.3
Q1 FY2023Mar 31, 2023-103614.3%−102882.4
Q3 FY2022Sep 30, 2022-1237600.0%−1216584.8
Q2 FY2022Jun 30, 2022-254937.5%−236788.6
Q1 FY2022Mar 31, 2022-60934.4%−59161.0
Q4 FY2021Dec 31, 2021-731.9%−267.1
Q3 FY2021Sep 30, 2021-21015.2%−20391.5
Q2 FY2021Jun 30, 2021-18148.9%−15596.7
Q1 FY2021Mar 31, 2021-1773.4%−1443.2
Q4 FY2020Dec 31, 2020-464.8%+284.1
Q3 FY2020Sep 30, 2020-623.7%+1126.9
Q2 FY2020Jun 30, 2020-2552.3%−2333.9
Q1 FY2020Mar 31, 2020-330.2%−251.4
Q4 FY2019Dec 31, 2019-748.9%+307.5
Q3 FY2019Sep 30, 2019-1750.6%−1596.5
Q2 FY2019Jun 30, 2019-218.4%+6.5
Q1 FY2019Mar 31, 2019-78.8%+144.0
Q4 FY2018Dec 31, 2018-1056.4%−609.1
Q3 FY2018Sep 30, 2018-154.0%+520.0
Q2 FY2018Jun 30, 2018-224.9%−92.8
Q1 FY2018Mar 31, 2018-222.8%+1285.1
Q4 FY2017Dec 31, 2017-447.3%+61.1
Q3 FY2017Sep 30, 2017-674.1%–
Q2 FY2017Jun 30, 2017-132.0%–
Q1 FY2017Mar 31, 2017-1507.8%–
Q4 FY2016Dec 31, 2016-508.4%–

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