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 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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(Print or Type Responses)
1. Name and Address of Reporting Person *
VAN NESS W DENMAN
   2. Issuer Name and Ticker or Trading Symbol
XOMA Corp [XOMA] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
C/O XOMA CORPORATION, 2200 POWELL STREET, SUITE 310		 3. Date of Earliest Transaction (Month/Day/Year)
11/15/2018
(Street)

EMERYVILLE, CA 94608		 4. If Amendment, Date Original Filed(Month/Day/Year)
 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 Shares 11/15/2018   M   4,667 A $ 4.03 11,646 D  
Common Shares 11/15/2018   M   3,026 A $ 11.20 14,672 D  
Common Shares 11/15/2018   S   5,528 (1) D $ 12.67 9,144 D  
Common Shares               1 I by IRA (2)
Common Shares               130 I by Trust (3)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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
(Month/Day/Year)		 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
Non-Qualified Share Option (right to buy) $ 4.03 11/15/2018   M     4,667   (4) 02/10/2027 Common Shares 4,667 $ 0 3,333 D  
Non-Qualified Share Option (right to buy) $ 11.20 11/15/2018   M     3,026   (5) 07/21/2026 Common Shares 3,026 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
VAN NESS W DENMAN
C/O XOMA CORPORATION
2200 POWELL STREET, SUITE 310
EMERYVILLE, CA 94608		   X      

Signatures

 /s/ W. Denman Van Ness   11/16/2018
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) Reflects the number of shares sold in connection with the cashless exercise.
(2) Owned directly through W. D. Van Ness IRA.
(3) Shares owned directly by The Van Ness 1983 Revocable Trust.
(4) Shares subject to this option shall vest in equal monthly installments over three years from the grant date.
(5) This option is exercisable in twelve equal monthly installments, beginning one month from the vest start date, which is the same as the grant date.

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