FirstBank, History
The following are major historical events for FirstBank, including mergers and acquisitions.
| 1901-01-01 | Institution established: Original name:First National Bank at Antlers | |
| 1991-03-01 | Changed name to First National Bank | |
| 1999-12-28 | Reorganized. | |
| 2000-09-11 | Acquired Farmers Exchange Bank (2322) in ANTLERS, OK | |
| 2001-01-01 | Changed institution class to INSURED COMMERCIAL OR SAVINGS BANKS, STATE, MEMBERS FRS | |
| 2001-01-01 | Changed primary regulatory agency from COMPTROLLER OF THE CURRENCY to FEDERAL RESERVE BOARD | |
| 2001-01-01 | Changed name to FirstBank | |
| 2020-01-01 | Acquired 1st Bank & Trust (16419) in BROKEN BOW, OK |