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Company

Altimmune, Inc.

ALT · CIK 0001326190

SEC FORM 4
$0.00

Altimmune, Inc. (ALT)

Acquisition (code M) of 24,000 shares at $0 per share.

Reporting Person Richardson Linda M · Officer Title Chief Commercial Officer · Transaction Code M

Traded Sep 16, 2026 · Disclosed Sep 17, 2026

Source: SEC Form 4 · 0001595064-26-000002 · filed 2026-09-17 · View filing →

SEC FORM 4
$22,116.24

Altimmune, Inc. (ALT)

Disposition (code F) of 6,826 shares at $3.24 per share.

Reporting Person Richardson Linda M · Officer Title Chief Commercial Officer · Transaction Code F

Traded Sep 16, 2026 · Disclosed Sep 17, 2026

Source: SEC Form 4 · 0001595064-26-000002 · filed 2026-09-17 · View filing →

SEC FORM 4
$44,250.00

Altimmune, Inc. (ALT)

Purchase of 15,000 shares at $2.95 per share.

Reporting Person Durso Jerome Benedict · Officer Title President and CEO · Transaction Code P

Traded Aug 13, 2026 · Disclosed Aug 13, 2026

Source: SEC Form 4 · 0001698665-26-000007 · filed 2026-08-13 · View filing →