Omb Bank, History
The following are major historical events for Omb Bank, including mergers and acquisitions.
| 1883-04-13 | Institution established: Original name:Bank of Ash Grove | |
| 2014-10-23 | Changed institution class to INSURED COMMERCIAL OR SAVINGS BANKS, STATE, MEMBERS FRS | |
| 2014-10-23 | Changed primary regulatory agency from FEDERAL DEPOSIT INSURANCE CORPORATION to FEDERAL RESERVE BOARD | |
| 2014-12-13 | Changed name to Old Missouri Bank | |
| 2014-12-13 | Moved bank headquarters from ASH GROVE, MO to SPRINGFIELD, MO | |
| 2014-12-13 | Acquired Old Missouri Bank (35213) in SPRINGFIELD, MO |