Company: ARMP
Filing Date: 2025-08-13
Form Type: S-8
Source: 0001104659-25-077650
Chunk: 4

Company: Armata Pharmaceuticals, Inc.
Filing Date: 2025-08-13
Form: S-8
Chunk 4
---
 on the signature pages of this Registration Statement)                                                       |
| 99.1    |     | Armata                                                                                                                             
 Pharmaceuticals, Inc. 2016 Equity Incentive Plan, as amended incorporated by reference to Exhibit 99.1 to the registrant’s         
 Registration Statement on Form S-8, filed with the SEC on June 10, 2019).                                                          |
| 99.2    |     | Armata                                                                                                                             
 Pharmaceuticals, Inc. 2016 Employee Stock Purchase Plan (incorporated herein by reference to Exhibit 10.10 to the Quarterly        
 Report on Form 10-Q, filed with the SEC on August 14, 2019).                                                                       |
| 107     |     | Filing                                                                                                                             
 Fee Table                                                                                                                          |

<div align='center'>- 4 -

SIGNATURES</div>

Pursuant to the requirements
of the Securities Act, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing
on Form S-8 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized,
in the City of Los Angeles, State of California on August 13, 2025.

| Armata Pharmaceuticals, Inc. |                         |
| By:                          | /s/                     
 Deborah L. Birx         |
|                              | Deborah L. Birx         |
|                              | Chief Executive Officer |

<div align='center'>POWER OF ATTORNEY</div>

Know All Persons By These Presents, that each person whose signature appears below constitutes and appoints each of Deborah L.
Birx and David D. House as his or her true and lawful attorney-in-fact and agent, with full power of substitution and resubstitution,
for him or her and in his or her name, place and stead, in any and all capacities, to sign any and all amendments to this Registration
Statement, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the Securities and Exchange
Commission, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every
act and thing requisite and necessary to be done in connection therewith, as fully to all intents and purposes as he or she might or
could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or either of them, or their or his substitute