Altimmune, Inc. reports

Company Names, identifiers, and filing context for this profile. 1 identity field
Company location
Gaithersburg, MD
SEC filing record 1 source field available
Fiscal year end
31 December
Altimmune, Inc. has filed 1,446 SEC EDGAR filings since 06 May 2005

SEC filing history

Showing 26-50 of 1,000 matching filings.

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25
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2
4

4 filing

Filing date
01 Apr 2026
Reporting date
01 Apr 2026
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SCHEDULE 13G/A File 005-80900

SCHEDULE 13G/A filing

Filing date
26 Mar 2026
Reporting date
Not listed
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ARS File 001-32587

ARS

Filing date
17 Mar 2026
Reporting date
31 Dec 2025
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DEF 14A File 001-32587

DEF 14A

Filing date
17 Mar 2026
Reporting date
16 Apr 2026
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4

4 filing

Filing date
09 Mar 2026
Reporting date
06 Mar 2026
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4

4 filing

Filing date
09 Mar 2026
Reporting date
06 Mar 2026
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PRE 14A File 001-32587

PRE 14A

Filing date
06 Mar 2026
Reporting date
16 Apr 2026
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4

4 filing

Filing date
27 Feb 2026
Reporting date
26 Feb 2026
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4

4 filing

Filing date
27 Feb 2026
Reporting date
26 Feb 2026
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4

4 filing

Filing date
03 Feb 2026
Reporting date
30 Jan 2026
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4

4 filing

Filing date
02 Feb 2026
Reporting date
30 Jan 2026
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4

4 filing

Filing date
02 Feb 2026
Reporting date
31 Jan 2026
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SCHEDULE 13G/A File 005-80900

SCHEDULE 13G/A filing

Filing date
30 Jan 2026
Reporting date
Not listed
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4

4 filing

Filing date
29 Jan 2026
Reporting date
27 Jan 2026
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4

4 filing

Filing date
29 Jan 2026
Reporting date
27 Jan 2026
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4

4 filing

Filing date
29 Jan 2026
Reporting date
27 Jan 2026
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424B5 File 333-291329

424B5

Filing date
28 Jan 2026
Reporting date
Not listed
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4

4 filing

Filing date
27 Jan 2026
Reporting date
25 Jan 2026
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4

4 filing

Filing date
27 Jan 2026
Reporting date
25 Jan 2026
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4

4 filing

Filing date
27 Jan 2026
Reporting date
25 Jan 2026
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