Other Information
−Removed: During the three months ended June 30, 2025, none of our officers or directors adopted , modified , or terminated a "Rule 10b5-1 trading arrangement" or "non-Rule 10b5-1 trading arrangement" as defined in Item 408(c) of Regulation S-K.
+Added: During the three months ended September 30, 2025, none of our officers or directors adopted , modified , or terminated a "Rule 10b5-1 trading arrangement" or "non-Rule 10b5-1 trading arrangement" as defined in Item 408(c) of Regulation S-K.
Exhibit Index
4 unchanged sentences
(incorporated by reference to Exhibit 3.2 to the Registrant’s Form 8-K filed on October 18, 2017)
−Removed: Loan and Security Agreement, dated May 13, 2025, by and between Altimmune, Inc.
+Added: Amendment to Loan and Security Agreement, dated November 5, 2025, by and between Altimmune, Inc.
and Hercules Capital, Inc.
−Removed: ( incorporated by reference to Exhibit 10.3 to the Registrant’s Form 10-Q filed on May 13, 2025)
+Added: ( incorporated by reference to Exhibit 10.1 to the Registrant’s Form 8-K filed on November 6, 2025)
+Added: Transitional Services and Release Agreement, dated September 30, 2025, by and between Altimmune, Inc.
Certification of Principal Executive Officer Pursuant to SEC Rule 13a-14(a)/15d-14(a)
11 unchanged sentences
Such certification will not be deemed to be incorporated by reference into any filing under the Securities Act of 1933, as amended, or the Exchange Act, except to the extent specifically incorporated by reference into such filing.
+Added: Filed herewith
Certain portions of this exhibit have been omitted in accordance with Item 601(b)(10)(iv) of Regulation S-K.
1 unchanged sentence
ALTIMMUNE, INC.
−Removed: August 12, 2025
+Added: November 6, 2025
President and Chief Executive Officer (Principal Executive Officer)
−Removed: August 12, 2025
+Added: November 6, 2025
/s/ Gregory Weaver
2 unchanged sentences
Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.