David Duane House - 09 Mar 2026 Form 4 Insider Report for Armata Pharmaceuticals, Inc. (ARMP)

Role: SVP, Finance, and PFO
Signature: /s/ David Duane House
Issuer symbol: ARMP
Transactions as of: 09 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 11 Mar 2026, 21:17:29 UTC
Previous filing: 07 Feb 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
House David Duane	SVP, Finance, and PFO	5005 MCCONNELL AVENUE, LOS ANGELES	/s/ David Duane House	11 Mar 2026	0002034219

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ARMP	Stock Options (Right to Buy)	Award		+109,885		$0.000000^*	109,885	09 Mar 2026	Common Stock	109,885	$11.61	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Twenty-five percent (25%) of the Stock Options shall vest on March 9th of each of 2027, 2028, 2029, and 2030, in each case subject to continuous service through the applicable vesting date.