INB, History
The following are major historical events for INB, including mergers and acquisitions.
| 1905-01-01 | Institution established: Original name:The First National Bank of Fairmount | |
| 1999-06-21 | Changed name to Illinois National Bank | |
| 1999-08-31 | Change trust powers from TRUST POWERS NOT GRANTED to FULL TRUST POWERS GRANTED | |
| 2000-06-01 | Moved bank headquarters from FAIRMOUNT, IL to SPRINGFIELD, IL | |
| 2000-06-01 | Reorganized. | |
| 2004-10-29 | Acquired Riverton Community Bank (19438) in RIVERTON, IL | |
| 2019-10-01 | Changed name to INB, National Association |