X0305 4 2012-04-02 0 0001011064 SUNRISE SENIOR LIVING INC [SRZ] 0001056973 CARLSON CAPITAL L P 2100 MCKINNEY AVE STE 1800 DALLAS TX 75201 0 0 1 0 0001452364 Black Diamond Offshore Ltd. 2100 MCKINNEY AVENUE SUITE 1800 DALLAS TX 75201 0 0 1 0 0001404976 Double Black Diamond Offshore Ltd 2100 MCKINNEY AVENUE SUITE 1800 DALLAS TX 75201 0 0 1 0 0001449554 Black Diamond Relative Value Offshore Ltd. 2100 MCKINNEY AVENUE SUITE 1800 DALLAS TX 75201 0 0 1 0 0001404557 Asgard Investment Corp. 2100 MCKINNEY AVENUE SUITE 1800 DALLAS TX 75201 0 0 1 0 0001404625 Carlson Clint Duane 2100 MCKINNEY AVENUE SUITE 1800 DALLAS TX 75201 0 0 1 0 Common Stock, par value $0.01 per share (the "Common Stock") 2012-04-02 4 P 0 77600 6.476 A 7896435 I See footnotes (1)(2) Common Stock 2012-04-04 4 P 0 10300 5.998 A 7906735 I See footnotes Common Stock 2012-04-04 4 P 0 21622 5.999 A 7928357 I See footnotes Common Stock 2012-04-04 4 P 0 960 6.0 A 7929317 I See footnotes The shares of Common Stock to which this relates are held directly by Black Diamond Offshore Ltd., a Cayman Islands exempted company ("Offshore"), Double Black Diamond Offshore Ltd., a Cayman Islands exempted company ("Double Offshore"), Black Diamond Relative Value Offshore Ltd., a Cayman Islands exempted company ("Relative Value Offshore" and together with Offshore and Double Offshore, the "Funds") and three managed accounts (collectively, the "Accounts"). Carlson Capital, L.P., a Delaware limited partnership ("Carlson Capital") serves as the investment manager to, and has the power to direct the affairs of, the Funds. Asgard Investment Corp., a Delaware corporation ("Asgard") serves as the indirect general partner of, and has the power to direct the affairs of, Carlson Capital. Mr. Clint D. Carlson, a U.S. citizen, serves as the president of, and has the power to direct the affairs of, Asgard and Carlson Capital. Each of the reporting persons disclaims beneficial ownership of the securities to which this Form 4 relates for the purposes of Section 16 of the Securities and Exchange Act of 1934, as amended, except as to such extent of the reporting person's pecuniary interest in the securities. Carlson Capital, L.P., /s/ Clint D. Carlson, President 2012-04-04