X0303 4/A 2010-04-19 2009-09-08 1 0001441848 FACET BIOTECH CORP FACT 0001061768 BAUPOST GROUP LLC/MA 10 ST JAMES AVE SUITE 1700 BOSTON MA 02116 0 0 1 0 0001061088 SAK CORP 10 ST JAMES AVENUE STE 1700 BOSTON MA 02116 0 0 1 0 0000899869 KLARMAN SETH A 10 ST. JAMES AVE. SUITE 1700 BOSTON MA 02116 0 0 1 0 Common Stock, $0.01 par value per share 2010-04-19 4 U 0 1500000 27.00 D 0 I See Footnote This statement on Form 4 is being jointly filed by The Baupost Group, L.L.C. (Baupost), SAK Corporation and Seth A. Klarman. Baupost is a registered investment adviser under the Investment Advisers Act of 1940, as amended, and acts as an investment adviser to certain investment limited partnerships. Securities reported on this Form 4 as being beneficially owned by Baupost include securities held by such investment limited partnerships, for which Baupost is the general partner and investment adviser. SAK Corporation is the manager of Baupost. Mr. Klarman is the sole director and sole officer of SAK Corporation and a controlling person of Baupost. The reporting persons disclaim beneficial ownership of the securities except to the extent of their pecuniary interests therein. The Baupost Group, LLC, by /s/ Seth A. Klarman 2010-04-21 SAK Corporation, by /s/ Seth A. Klarman 2010-04-21 /s/ Seth A. Klarman 2010-04-21