Altimmune, Inc. — Director's Dealing 2025

Mar 11, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Altimmune, Inc. (ALT)
CIK: 0001326190
Period of Report: 2025-03-07

Reporting Person: Harris Matthew Scott (Chief Medical Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-03-07	Common Stock, par value $0.0001	G	67787	—	Disposed	14069	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock, par value $0.0001	67787	Indirect

Footnotes

F1: On March 7, 2025, the reporting person transferred 67,787 shares of common stock to the Matthew Scott Harris Trust for no consideration. The reporting person is trustee of the trust, and the reporting person and members of his immediate family are the sole beneficiaries of the trust. The reporting person remains the beneficial owner of the securities held by the trust.