POWER OF ATTORNEY
Know all by these presents, that the undersigned hereby constitutes and appoints each of Daniel Luckshire, Kevin Buckley and Larry Miller with full power of substitution and re-substitution, signing singly, as the undersigned’s true and lawful attorney-in-fact to:

(1)
obtain credentials (including codes or passwords) to enable the undersigned to submit and file documents, forms and information required by Section 16(a) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or any rule or regulation of the U.S. Securities and Exchange Commission (“SEC”) via the Electronic Data Gathering and Retrieval (“EDGAR”) system, including: (i) preparing, executing in the undersigned’s name and on the undersigned’s behalf and submitting to the SEC a Form ID (and any amendments thereto) or any other documents necessary or appropriate to obtain such credentials and legally binding the undersigned for purpose of the Form ID or such other documents; and (ii) enrolling the undersigned in EDGAR Next or any successor filing system;

(2)
act as an account administrator, in addition to Alexa Calcagnini, for the undersigned’s EDGAR account, including: (i) appointing, removing and replacing account administrators, technical administrators, account users and delegated entities; (ii) maintaining the security of the undersigned’s EDGAR account, including modification of access codes; (iii) maintaining, modifying and certifying the accuracy of information on the undersigned’s EDGAR account dashboard; and (iv) taking any other actions contemplated by Rule 10 of Regulation S-T;

(3)
cause SIGA Technologies, Inc. (the “Company”) to accept a delegation of authority from the undersigned’s EDGAR account administrators and authorize the Company’s EDGAR account administrators pursuant to that delegated entity designation to appoint, remove or replace users for the undersigned’s EDGAR account;

(4)
execute for, and on behalf of, the undersigned, in the undersigned’s capacity as an officer and/or director of the Company, Form 3, 4 or 5 relating to the Company in accordance with Section 16(a) of the Exchange Act and the rules and regulations promulgated thereunder and Form 144 in accordance with Rule 144 under the Securities Act of 1933, as amended (the “Securities Act”);

(5)
do and perform any and all acts for, and on behalf of, the undersigned that may be necessary or desirable to prepare, complete and execute any such Form 3, 4 or 5 or Form 144 and any amendments thereto or other required reports and timely file such forms or reports with the SEC and any stock exchange or similar authority as considered necessary or advisable under Section 16(a) of the Exchange Act or Rule 144 under the Securities Act; and


(6)
take any other action of any type whatsoever in connection with the foregoing that, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned, pursuant to this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in his or her discretion.
The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact’s substitute or substitutes, shall lawfully do or cause to be done by virtue of this Power of Attorney and the rights and powers herein granted. The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned’s responsibilities to comply with Section 16 of the Securities Exchange Act of 1934.
This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file such documents with respect to holdings of and transactions in securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.
IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 24th day of June, 2025.
 
By:
/s/ Dennis Hruby
 
Name:   
Dennis Hruby