Sec Form 4 Filing - Innoviva, Inc. @ Armata Pharmaceuticals, Inc. - 2021-10-29

FORM 4 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 Innoviva, Inc. 2. Issuer Name and Ticker or Trading Symbol Armata Pharmaceuticals, Inc. [ ARMP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 1350 OLD BAYSHORE HIGHWAY SUITE 400 3. Date of Earliest Transaction (MM/DD/YY) 10/29/2021 (Street) BURLINGAME, CA94010 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ 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 Common Stock 10/29/2021 P 1,212,122 A $ 3.3 7,365,969 I See footnotes ( 1 ) ( 2 ) Common Stock 8,710,800 ( 1 ) D ( 1 )

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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Innoviva, Inc. 1350 OLD BAYSHORE HIGHWAY SUITE 400 BURLINGAME, CA94010 X X Innoviva Strategic Opportunities LLC 1350 OLD BAYSHORE HIGHWAY SUITE 400 BURLINGAME, CA94010 X X Signatures INNOVIVA, INC., by /s/ Pavel Raifeld 11/01/2021 Signature of Reporting Person Date INNOVIVA STRATEGIC OPPORTUNITIES LLC, by Innoviva, Inc., its managing member, /s/ Pavel Raifeld 11/01/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )On October 28, 2021, Innoviva Strategic Opportunities LLC ("Innoviva Sub"), a Delaware limited liability company and a wholly-owned subsidiary of Innoviva, Inc. ("Innoviva" and, together with Innoviva Sub, the "Reporting Persons"), entered into that certain Securities Purchase Agreement (the "Purchase Agreement") with Armata Pharmaceuticals, Inc., a Washington corporation (the "Issuer") and another purchaser, pursuant to which, on October 29, 2021 Innoviva Sub acquired 1,212,122 newly issued shares of common stock, $0.01 par value per share, of the Issuer ("Common Stock"). In addition, pursuant to previous transactions, (i) Innoviva Sub is the direct beneficial owner, and Innoviva is the indirect beneficial owner, of an additional 6,153,847 shares of Common Stock and (ii) Innoviva is the direct beneficial owner of 8,710,800 shares of Common Stock. ( 2 )In 2020, Innoviva designated Odysseas Kostas, M.D. and in 2021, Innoviva designated Jules Haimovitz, two of the members of the board of directors of Innoviva, to serve on the board of directors of the Issuer. As such, solely for purposes of Section 16 of the Exchange Act, the Reporting Persons may be deemed to be directors by deputization. For purposes of the exemption under Rule 16b-3 promulgated under the Exchange Act, the board of directors of the Issuer approved the acquisition of any direct or indirect pecuniary interest in any shares of Common Stock, as a result of or in connection with the transactions reported on this Form 4.

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