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Associated Bank, History
The following are major historical events for Associated Bank, including mergers and acquisitions.
| 1874-01-01 | Institution established: Original name:Kellogg-Citizens National Bank of Green Bay | |
| 1989-01-01 | Acquired Associated De Pere Bank (15182) in DE PERE, WI | |
| 1993-01-01 | Changed name to Associated Bank Green Bay, National Association | |
| 1993-01-01 | Acquired First National Bank of Sturgeon Bay (19738) in STURGEON BAY, WI | |
| 1993-07-01 | Acquired Farmers State Bank (13061) in POUND, WI | |
| 1998-11-12 | Reorganized. | |
| 1999-06-18 | Acquired Citizens Bank, National Association (15155) in SHAWANO, WI | |
| 2001-04-20 | Acquired Associated Bank, National Association (5311) in NEENAH, WI | |
| 2001-04-20 | Changed name to Associated Bank, National Association | |
| 2001-04-20 | Acquired Associated Bank Milwaukee (1509) in MILWAUKEE, WI | |
| 2001-05-25 | Acquired Associated Bank South Central (13237) in MADISON, WI | |
| 2001-05-25 | Acquired Associated Bank North (12340) in WAUSAU, WI | |
| 2001-05-25 | Acquired Associated Bank Lakeshore, National Association (11619) in MANITOWOC, WI | |
| 2003-09-12 | Acquired Associated Card Services Bank, National Association (34208) in STEVENS POINT, WI | |
| 2003-11-21 | Acquired Associated Bank Illinois, National Association (34916) in ROCKFORD, IL | |
| 2005-02-19 | Acquired First Federal Capital Bank (28981) in LA CROSSE, WI | |
| 2005-07-15 | Acquired Associated Bank Minnesota, National Association (18704) in MINNEAPOLIS, MN | |
| 2005-07-15 | Acquired Associated Bank Chicago (22177) in CHICAGO, IL | |
| 2005-10-21 | Reorganized. | |
| 2005-11-04 | Acquired State Financial Bank, National Association (3753) in HALES CORNERS, WI | |
| 2007-06-29 | Acquired The First National Bank of Hudson (5348) in WOODBURY, MN | |
| 2018-06-24 | Acquired Bank Mutual (30125) in BROWN DEER, WI | |
| 2020-02-14 | Acquired The First National Bank in Staunton (14924) in STAUNTON, IL |