Exhibit
32.1
Certification
Pursuant
to Section 906 Of The Sarbanes-Oxley Act Of 2002
(Chapter
63, Title 18 U.S.C. Section 1350(A) And (B))
Pursuant
to Section 906 of the Sarbanes-Oxley Act of 2002 (Chapter 63, Title 18 U.S.C.
Section 1350(a) and (b)), the undersigned hereby certifies in his capacity as an
officer of XOMA Ltd. (the “Company”) that the quarterly report of the Company on
Form 10-Q for the period ended June 30, 2008, fully complies with the
requirements of Section 13(a) of the Securities Exchange Act of 1934, as
amended, and that the information contained in such report fairly presents, in
all material respects, the financial condition and results of operations of the
Company at the end of and for the periods covered by such report.
|
|
|
|
|
|
|
|
Date:
March 5, 2010
|
|
|
|
/s/ STEVEN
B. ENGLE
|
|
|
|
|
Steven
B. Engle
|
|
|
|
|
Chairman,
Chief Executive Officer and
President
|
This
certification will not be deemed filed for purposes of Section 18 of the
Exchange Act (15 U.S.C. 78), or otherwise subject to the liability of that
section. Such certification will not be deemed to be incorporated by reference
into any filing under the Securities Act or the Exchange Act, except to the
extent that the registrant specifically incorporates it by
reference.