Other Information
−Removed: On March 26, 2025 , Dr.
−Removed: Vipin Garg , adopted a trading plan intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) under the Exchange Act.
−Removed: The plan provides for the sale of up to 80,000 shares of our common stock acquired pursuant to vesting of restricted awards granted to Dr.
−Removed: Garg’s plan will commence on the later of June 24, 2025 or two business days following the filing of our financial results on Form 10-Q, and expires on June 24, 2026 .
−Removed: Other than the trading arrangement disclosed above, 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 during the three months ended March 31, 2025.
+Added: 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.
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: Equity Distribution Agreement, dated February 27, 2025 among the Registrant and Leerink Partners LLC, Piper Sandler & Co.
−Removed: and Stifel, Nicolaus & Company, Incorporated (incorporated by reference to Exhibit 1.2 to the Registrant’s Form S-3 filed on February 27, 2025)
−Removed: Consulting Agreement, dated February 6, 2025, by and between Altimmune, Inc.
−Removed: and Catherine Sohn (incorporated by reference to Exhibit 10.15 to the Registrant’s Form 10-K filed on February 27, 2025)
Loan and Security Agreement, dated May 13, 2025, by and between Altimmune, Inc.
and Hercules Capital, Inc.
+Added: ( incorporated by reference to Exhibit 10.3 to the Registrant’s Form 10-Q filed on May 13, 2025)
Certification of Principal Executive Officer Pursuant to SEC Rule 13a-14(a)/15d-14(a)
9 unchanged sentences
Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)
−Removed: Filed herewith.
This certification will not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section.
3 unchanged sentences
ALTIMMUNE, INC.
+Added: August 12, 2025
President and Chief Executive Officer (Principal Executive Officer)
+Added: August 12, 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.