EX-FILING FEES

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Calculation of Filing Fee Tables
S-3
Altimmune, Inc.

Table 1: Newly Registered and Carry Forward Securities	☐Not Applicable

		Security Type	Security Class Title	Fee Calculation or Carry Forward Rule	Amount Registered	Proposed Maximum Offering Price Per Unit	Maximum Aggregate Offering Price	Fee Rate	Amount of Registration Fee	Carry Forward Form Type	Carry Forward File Number	Carry Forward Initial Effective Date	Filing Fee Previously Paid in Connection with Unsold Securities to be Carried Forward
Newly Registered Securities
		Equity	Common Stock, par value $0.0001 per share	457(o)
		Other	Warrants	457(o)
		Other	Units	457(o)
Fees to be Paid	1	Unallocated (Universal) Shelf		457(o)			$ 65,000,000.00	0.0001381	$ 8,976.50
Fees Previously Paid
Carry Forward Securities
Carry Forward Securities
			Total Offering Amounts:				$ 65,000,000.00		$ 8,976.50
			Total Fees Previously Paid:						$ 0.00
			Total Fee Offsets:						$ 0.00
			Net Fee Due:						$ 8,976.50

Offering Note

¹	The Registrant previously registered the offer and sale of certain securities, including its common stock, par value $0.0001 per share, having a proposed maximum aggregate offering price of $400,000,000 pursuant to Registration Statement on Form S-3 (File No. 333-291329), which the Registrant initially filed with the Commission on November 6, 2026, and which the Commission declared effective on December 5, 2026 (the "Prior Registration Statement"). As of the date hereof, a balance of $325,000,000 of such securities remains unsold under the Prior Registration Statement. In accordance with Rule 462(b) under the Securities Act of 1933, as amended, and General Instruction IV(A) of Form S-3, the Registrant is hereby registering the offer and sale of an additional $65,000,000 of its shares of common stock and warrants to purchase common stock to be offered as a unit. The additional securities that are being registered for issuance and sale are in an amount and at a price that together represent no more than 20% of the maximum aggregate offering price of unsold securities under the Prior Registration Statement.

Table 2: Fee Offset Claims and Sources	☑Not Applicable

		Registrant or Filer Name	Form or Filing Type	File Number	Initial Filing Date	Filing Date	Fee Offset Claimed	Security Type Associated with Fee Offset Claimed	Security Title Associated with Fee Offset Claimed	Unsold Securities Associated with Fee Offset Claimed	Unsold Aggregate Offering Amount Associated with Fee Offset Claimed	Fee Paid with Fee Offset Source
Rules 457(b) and 0-11(a)(2)
Fee Offset Claims
Fee Offset Sources
Rule 457(p)
Fee Offset Claims
Fee Offset Sources

Table 3: Combined Prospectuses	☑Not Applicable

	Security Type	Security Class Title	Amount of Securities Previously Registered	Maximum Aggregate Offering Price of Securities Previously Registered	Form Type	File Number	Initial Effective Date