Sec Form 3 Filing - Butler Erin @ Armata Pharmaceuticals, Inc. - 2022-07-01

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Butler Erin 2. Issuer Name and Ticker or Trading Symbol Armata Pharmaceuticals, Inc. [ ARMP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Vice President,Finance & Admin (Last) (First) (Middle) 4503 GLENCOE AVENUE 3. Date of Earliest Transaction (MM/DD/YY) 07/01/2022 (Street) MARINA DEL REY, CA90292 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Stock Option (Right to Buy) $ 14.28 ( 1 ) 09/17/2027 Common Stock 714 D Stock Option (Right to Buy) $ 3.15 ( 2 ) 05/22/2029 Common Stock 15,000 D Stock Option (Right to Buy) $ 5.14 ( 3 ) 03/24/2031 Common Stock 30,000 D Stock Option (Right to Buy) $ 5.11 ( 4 ) 04/12/2032 Common Stock 50,000 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Butler Erin 4503 GLENCOE AVENUE MARINA DEL REY, CA90292 Vice President,Finance & Admin Signatures /s/ Erin Butler 02/07/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Reflects the grant of stock options to purchase shares of common stock of the Issuer under the Issuer's 2016 Equity Incentive Plan (the "2016 EIP"). All 714 stock options are fully vested and exercisable. ( 2 )Reflects the grant of stock options to purchase shares of common stock of the Issuer under the 2016 EIP. 11,250 of the stock options are fully vested and exercisable. 3,750 of the stock options will vest on May 22, 2023. ( 3 )Reflects the grant of stock options to purchase shares of common stock of the Issuer under the 2016 EIP. 7,500 of the stock options are fully vested and exercisable. 7,500 of the stock options will vest on March 25, 2023, 7,500 of the stock options will vest on March 25, 2024, and 7,500 of the stock options will vest on March 25, 2025. ( 4 )Reflects the grant of stock options to purchase shares of common stock of the Issuer under the 2016 EIP. None of the stock options have fully vested and become exercisable. 12,500 of the stock options will vest on April 13, 2023, 12,500 of the stock options will vest on April 13, 2024, 12,500 of the stock options will vest on April 13, 2025, and 12,500 of the stock options will vest on April 13, 2026.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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