WALGREEN CO C. 332317 3,057.32 BROKERAGE 2.76 92000 33.262 (3,060.06) • 2/3 NOMURA SECURITIES INTERNATIONAL (ID: 931422-10-9) 1/31 Purchase WALGREEN CO@ 33.2297 66.46 BROKERAGE 0.04 2.000 33.25 0 6.50 • 2/3 BLOOMBERO TRADEBOOK LLC (ID: 931422-10-9) 2/1 Purchase WALGREEN CO (a 33.3115 366.4

5/8 Purchase CONOCOPHILUPS Q 53.2679 692.48 BROKERAGE 0.26 13.000 53.288 (692.74) 501 BARCLAYS CAPITAL LE (ID: 20825C-10-4) 5/16 Purchase WALGREEN COQ 32.8277 853.52 BROKERAGE 078 26.000 32.858 (854.3D) 5/21 CITIGROUP GLOBAL MKTS INC (ID: 931422-10-9) 5116 Purchase WALGREEN COQ 328389 16

NC (li 12.893 24,728.77 BROKERAGE 38.38 1,918.000 12.913 (24,767.13) 4/25 SANFORD C. BERNSTEIN & CO.INC.(SCB (ID: 855030-10-2) 4/22 Purchase WALGREEN COQ 49.5668 28,798.31 BROKERAGE 11.62 581.000 49.587 (28,809.93) 4/25 SANFORD C. BERNSTEIN & CO.INC.(SCB (ID: 931422-10-9) 4/22 Purchase CHE