Ownership Submission
FORM 4
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Check this box if no longer subject to Section 16, Form 4 or Form 5 obligations may continue. See Instruction 1(b).
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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OMB APPROVAL
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OMB Number:3235-0287Expires:January 31, 2005Estimated average burden hours per response...0.5
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1. Name and Address of Reporting Person *
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McCarthy Sean A.
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2. Issuer Name and Ticker or Trading Symbol
CytomX Therapeutics, Inc. [CTMX]
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5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director
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_____ 10% Owner
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_____ Officer (give title below)
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_____ Other (specify below)
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CEO /
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(Last)
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(First)
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(Middle)
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C/O CYTOMX THERAPEUTICS, INC. , 151 OYSTER POINT BLVD., STE. 400
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3. Date of Earliest Transaction (Month/Day/Year)
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(Street)
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SOUTH SAN FRANCISCO
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CA
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94080
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4. If Amendment, Date Original Filed(Month/Day/Year)
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6. Individual or Join/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
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Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
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1.Title of Security
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2. Transaction Date (Month/Day/Year)
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2A. Deemed Execution Date, if any (Month/Day/Year)
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3. Transaction Code
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4. Securities Acquired (A) or Disposed of (D)
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5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
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6. Ownership Form: Direct (D) or Indirect (I)
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7. Nature of Indirect Beneficial Ownership
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Code
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V
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Amount
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(A) or (D)
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Price
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
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2. Conversion or Exercise Price of Derivative Security
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3. Transaction Date (Month/Day/Year)
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3A. Deemed Execution Date, if any (Month/Day/Year)
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4. Transaction Code
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5. Number of Derivative Securities Acquired (A) or Disposed of (D)
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6. Date Exercisable and Expiration Date
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7. Title and Amount of Securities Underlying Derivative Security
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8. Price of Derivative Security
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9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s)
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10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
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11. Nature of Indirect Beneficial Ownership
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Code
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V
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(A)
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(D)
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Date Exercisable
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Expriation Date
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Title
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Amount or Number of Shares
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Reporting Owners
Reporting Owner Name / Address
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Relationships
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Director
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10% Owner
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Officer
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Other
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McCarthy Sean A.
C/O CYTOMX THERAPEUTICS, INC.
151 OYSTER POINT BLVD., STE. 400
SOUTH SAN FRANCISCO, CA94080
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CEO
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Signatures
/s/ Lloyd Rowland, as Attorney-in-Fact for Sean A. McCarthy
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2024-08-22
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**Signature of Reporting Person
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Date
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Explanation of Responses:
(*)
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If the form is filed by more than one reporting person, see Instruction 5(b)(v).
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(**)
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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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(1)
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Represents vesting of a Performance Stock Unit ("PSU") award initially granted on August 10, 2022.
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(2)
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Includes 197,500 restricted stock units.
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(3)
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The shares were sold solely to satisfy tax or other government withholding obligations in connection with the vesting of PSUs reported herein.
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(4)
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Shares held by Sean A. McCarthy 2018 Trust, of which Reporting Person is trustee.
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(5)
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Each PSU represents a contingent right to receive one share of the Issuer's Common Stock upon vesting. 50% of the PSUs vested on December 17, 2023 upon achievement of a certain performance-based milestone. In connection with the vesting reported herein, the remaining 50% of the PSUs vested upon achievement of a certain performance-based milestone.
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