Company: ARMP
Filing Date: 2025-08-13
Form Type: S-3
Source: 0001104659-25-077648
Chunk: 4

Company: Armata Pharmaceuticals, Inc.
Filing Date: 2025-08-13
Form: S-3
Chunk 4
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TABLE OF CONTENTS</div>

| ABOUT                                     
 THIS PROSPECTUS                           |  1 |
| SUMMARY                                   |  2 |
| RISK                                      
 FACTORS                                   |  8 |
| THE                                       
 SECURITIES WE MAY OFFER                   |  9 |
| SPECIAL                                   
 NOTE REGARDING FORWARD-LOOKING STATEMENTS | 11 |
| USE                                       
 OF PROCEEDS                               | 14 |
| DESCRIPTION                               
 OF CAPITAL STOCK                          | 15 |
| DESCRIPTION                               
 OF THE DEBT SECURITIES                    | 18 |
| DESCRIPTION                               
 OF WARRANTS                               | 20 |
| DESCRIPTION                               
 OF UNITS                                  | 22 |
| LEGAL                                     
 OWNERSHIP OF SECURITIES                   | 23 |
| PLAN                                      
 OF DISTRIBUTION                           | 26 |
| LEGAL                                     
 MATTERS                                   | 28 |
| EXPERTS                                   | 29 |
| WHERE                                     
 YOU CAN FIND MORE INFORMATION             | 30 |
| INCORPORATION                             
 OF CERTAIN INFORMATION BY REFERENCE       | 31 |

We have not authorized anyone
to provide you with information different from the information contained in or incorporated by reference in this prospectus, any applicable
prospectus supplement and any related free writing prospectus that we may authorize to be provided to you. No dealer, salesperson or other
person is authorized to give any information or to represent anything not contained or incorporated by reference in this prospectus, any
applicable prospectus supplement or any related free writing prospectus that we may authorize to be provided to you. This prospectus is
an offer to sell only the securities offered hereby, but only under circumstances and in jurisdictions where it is lawful to do so. You
should assume that the information in this prospectus, any applicable prospectus supplement or any related free writing prospectus is
accurate only as of the date on the front of the document and that any information we have incorporated by reference is accurate only
as of the date of the document incorporated by reference, regardless of the time of delivery of this prospectus, any applicable prospectus
supplement or any related free writing prospectus, or any sale of our securities. Our business, financial condition, results of operations
and prospects may have changed since that date.

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ABOUT THIS PROSPECTUS</div>

This prospectus is part of
a registration statement on Form S-3 that we filed with the U.S.