X0303 4 2008-10-24 0000073124 NORTHERN TRUST CORP NTRS 0001328600 Schreuder Jana R 50 SOUTH LASALLE STREET CHICAGO IL 60603 0 1 0 0 EVP/President WWOT Common Stock 2008-10-24 4 F 0 1578 48.82 D 16115 D Common Stock 2008-10-24 4 F 0 658 48.82 D 12027 D Common Stock 24378 I By Trust Common Stock 10165 I 401(k) Represents stock units payable automatically on a 1-for-1 basis in shares of the Corporation's common stock. On October 24, 2008, 4,000 already reported and vested stock units, granted on February 18, 2003, were distributed to the reporting person, 2,422 stock units were distributed to the reporting person as shares of common stock (NTRS); and 1,578 stock units were withheld in payment of Federal, State and Medicare taxes. On October 24, 2008, 1,666 already reported and vested stock units, granted February 15, 2005 were distributed to the reporting person. 1008 stock units were distributed to the reporting person as shares of common stock (NTRS); and 658 stock units were withheld in payment of Federal, State, and Medicare taxes. as of 9-30-08 Paul A. Bernacki Attorney-in-Fact for Jana R. Schreuder 2008-10-28