UNITED STATES
                   SECURITIES AND EXCHANGE COMMISSION
                         Washington, D.C. 20549

                                Form 10-C

             REPORT BY ISSUER OF SECURITIES QUOTED ON NASDAQ
                      INTERDEALER QUOTATION SYSTEM

 Filed pursuant to Section 13 or 15(d) of the Securities Exchange Act of
                                  1934
                  and Rule 13a-17 or 15d-17 thereunder

                            XOMA Corporation                            
             (Exact name of issuer as specified in charter)

            2910 Seventh Street, Berkeley, California  94710            
                (Address of principal executive offices)

Issuer's telephone number, including area code        (415) 644-1170     

                I. CHANGE IN NUMBER OF SHARES OUTSTANDING

Indicate any change (increase or decrease) of 5% or more in the number of
shares outstanding:

1.  Title of security:  Common Stock, par value $.0005 per share       
2.  Number of shares outstanding before the change:  28,312,868        
3.  Number of shares outstanding after the change:  31,581,420         
4.  Effective date of change:  April 22, 1996                          
5.  Method of change:
    Specify method (such as merger, acquisition, exchange, distribution,
    stock split, reverse split, acquisition of stock for treasury, etc.):
    Conversions of convertible debentures and private placements of
    Common Stock

    Give brief description of transaction:  conversions of convertible
    debentures previously issued into shares of Common Stock and issuance
    of shares of Common Stock in private placements

                      II. CHANGE IN NAME OF ISSUER

1.  Name prior to change:                                                 
2.  Name after change:                                                    
3.  Effective date of charter amendment changing name:
4.  Date of shareholder approval of change, if required:                  


Date      April 23, 1996                /s/ Christopher J. Margolin 
     -------------------------          --------------------------------
                                        (Officer's signature & title)
                                        Christopher J. Margolin
                                        Vice President, General Counsel
                                          and Secretary