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Pinnacle Bank, History
The following are major historical events for Pinnacle Bank, including mergers and acquisitions.
| 1927-05-05 | Institution established: Original name:Tama State Bank | |
| 1996-08-19 | Moved bank headquarters from TAMA, IA to MARSHALLTOWN, IA | |
| 1997-11-06 | Changed primary regulatory agency from FEDERAL DEPOSIT INSURANCE CORPORATION to FEDERAL RESERVE BOARD | |
| 2002-06-17 | Changed name to TSB Bank | |
| 2005-06-01 | Changed name to Pinnacle Bank |