X0303 4 2009-10-23 0000073124 NORTHERN TRUST CORP NTRS 0001328600 Schreuder Jana R 50 SOUTH LASALLE STREET CHICAGO IL 60603 0 1 0 0 EVP/President O&T Common Stock 2009-10-23 4 F 0 1178 53.385 D 23072 D Common Stock 2009-10-23 4 F 0 491 53.385 D 21405 D Common Stock 2009-10-23 4 F 0 549 53.385 D 19569 D Common Stock 29331 I By Trust Common Stock 10194 I 401(k) Represents stock units payable automatically on a 1-for-1 basis in shares of the Corporation's common stock On October 23, 2009, 4,000 already reported and vested stock units, granted on February 17, 2004, were distributed to the reporting person; 2,822 stock units were distributed to the reporting person as common stock of NTRS, and 1,178 stock units were withheld in payment of Federal, State and Medicare taxes. On October 23, 2009, 1,667 already reported and vested stock units, granted on February 15, 2005, were distributed to the reporting person, 1,176 stock units were distributed to the reporting person as common stock of NTRS, and 491 stock units were withheld in payment of Federal, State and Medicare taxes. On October 23, 2009, 2,346 already reported and vested stock units, granted on February 21, 2006, were distributed to the reporting person; 1,287 stock units were distributed to the reporting person as common stock of NTRS; 549 stock units were withheld in payment of Federal, State and Medicare taxes, and 510 stock units were deferred. as of 9/30/2009 Paul A. Bernacki Attorney-in-Fact for Jana R. Schreuder 2009-10-27