Form 8-K Armata Pharmaceuticals, For: Mar 25

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March 25, 2026 4:11 PM EDT

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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of report (Date of earliest event reported): March 25, 2026

ARMATA PHARMACEUTICALS, INC.

(Exact name of Registrant as specified in its charter)


Washington	001-37544	91-1549568
(State or other jurisdiction of incorporation or organization)	(Commission File Number)	(IRS Employer Identification No.)

5005 McConnell Avenue

Los Angeles, California

90066

(Address of principal executive offices)

(Zip Code)

(310) 665-2928

(Registrant’s Telephone number)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the Registrant under any of the following provisions (see General Instruction A.2. below):

☐Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Securities registered pursuant to Section 12(b) of the Act:


Title of Each Class	Trading Symbol(s)	Name of Each Exchange on Which Registered
Common Stock	ARMP	NYSE American

Item 2.02Results of Operations and Financial Condition.

On March 25, 2026, Armata Pharmaceuticals, Inc. announced its financial results for the three months and full fiscal year ended December 31, 2025, in the press release furnished hereto as Exhibit 99.1.

The information in this Item 2.02 and the attached Exhibit 99.1 is being furnished and shall not be deemed “filed” for the purposes of Section 18 of the Securities and Exchange Act of 1934, as amended, or otherwise subject to the liabilities of that Section. The information in this Item 2.02 and the attached Exhibit 99.1 shall not be incorporated by reference into any registration statement or other document pursuant to the Securities Act of 1933, as amended.

Item 9.01Financial Statements and Exhibits.

(d)Exhibits.


Exhibit No.		Description
99.1		Press Release, dated March 25, 2026.
104		Cover Page Interactive Data File (embedded within Inline XBRL document).

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.


Date: March 25, 2026	Armata Pharmaceuticals, Inc.

	By:	/s/ David House
	Name:	David House
	Title:	Senior Vice President, Finance and Principal Financial Officer