Prairie Federal Savings and Loan Association
| Status: | Inactive as of 05/31/1982 |
| Merger - Without Assistance | |
| Successor Bank: | AnchorBank, fsb |
| Headquarters: | Prairie Federal Savings and Loan Association 600 East Blackhawk Ave Prairie Du Chien, WI 53821 |
| Established: | 10/23/1935 |
| FDIC Insurance: | 10/23/1935 |
| FDIC Cert: | #29545 |
| Charter Class: |
History
| 1935-10-23 | Institution established: Original name:Prairie Federal Savings and Loan Association | |
| 1982-05-31 | Merged into and subsequently operated as part of Anchor Savings and Loan Association (29979) in MADISON, WI | |
| 1983-06-30 | Acquired First Federal Savings and Loan Association of Walworth Co (31207) in DELAVAN, WI | |
| 1984-09-30 | Acquired The Provident Savings and Loan Association (28743) in MADISON, WI | |
| 1985-10-31 | Acquired Evergreen Savings and Loan Association (30074) in MADISON, WI | |
| 1987-10-31 | Acquired Columbus Federal Savings and Loan Association (29464) in COLUMBUS, WI | |
| 1988-04-30 | Acquired Richland Center Federal Savings and Loan Association (29190) in RICHLAND CENTER, WI | |
| 1990-07-01 | Acquired Viroqua Federal Savings and Loan Association (29010) in VIROQUA, WI | |
| 1992-07-15 | Changed name to AnchorBank, S.S.B. (29979) | |
| 1992-07-15 | Changed organization type to STOCK SAVINGS & LOAN | |
| 1995-06-30 | Acquired American Equity Bank, F.S.B. (30809) in STEVENS POINT, WI | |
| 1999-06-08 | Acquired Fox Cities Bank (28744) in OSHKOSH, WI | |
| 2000-07-01 | Changed name to ANCHORBANK, F.S.B. (29979) | |
| 2000-07-01 | Changed organization type to STOCK SAVINGS BANK | |
| 2000-07-01 | Changed institution class to OCC SUPERVISED SAVINGS BANKS | |
| 2001-11-10 | Acquired Ledger Bank, S.S.B. (29503) in WEST ALLIS, WI | |
| 2003-04-01 | Changed name to AnchorBank, fsb (29979) | |
| 2008-02-15 | Acquired S & C Bank (14800) in NEW RICHMOND, WI | |
| 2011-07-21 | Changed primary regulatory agency from OFFICE OF THRIFT SUPERVISION to COMPTROLLER OF THE CURRENCY | |
| 2016-05-01 | Merged into and subsequently operated as part of Old National Bank (3832) in EVANSVILLE, IN | |
| 2017-11-01 | Acquired Anchor Bank, National Association (8868) in SAINT PAUL, MN | |
| 2018-11-01 | Acquired KleinBank (1414) in CHASKA, MN |