Bank Branches › Closed and merged banks › Illinois › First Oak Brook Bank/Addison
What happened to First Oak Brook Bank/Addison?
First Oak Brook Bank/Addison in Addison, IL (earlier called Heritage Bank of Addison and 2 other names) merged into 1st Oak Brook Bank of Glenview, IL on Aug 16, 1991. After 3 more changes of hands, what was First Oak Brook Bank/Addison is today part of Fifth Third Bank, National Association (Cincinnati, OH).
The chain, step by step
From the day it opened to the bank at the end of the chain today. Each step is one entry in the FDIC's record.
- 1971Heritage Bank of Addison opens in Addison, IL
- Jan 27, 1977renamed Metropolitan Trust & Savings Bank of Addison
- Sep 30, 1983renamed Metropolitan Bank of Addison
- Aug 14, 1985renamed First Oak Brook Bank/Addison
- Aug 16, 1991MERGEDFirst Oak Brook Bank/Addison merged into 1st Oak Brook Bank of Glenview, IL.FDIC certificate 20439 ends; its business continues under certificate 17316.
- Aug 29, 1994MERGED1st Oak Brook Bank of Glenview, IL merged into Oak Brook Bank of Oak Brook, IL.FDIC certificate 17316 ends; its business continues under certificate 18498.
- Nov 2, 2006MERGEDOak Brook Bank of Oak Brook, IL merged into MB Financial Bank, National Association of Chicago, IL.FDIC certificate 18498 ends; its business continues under certificate 3628.
- May 4, 2019MERGEDMB Financial Bank, National Association of Chicago, IL merged into Fifth Third Bank of Cincinnati, OH.FDIC certificate 3628 ends; its business continues under certificate 6672.
- TodayOPEN
Fifth Third Bank, National AssociationMain office Cincinnati, OH · FDIC certificate 6672 · 1,513 offices in 15 states on June 30, 2026Every Fifth Third Bank, National Association office → Website on file with the FDIC: www.53.com
If you still have something from First Oak Brook Bank/Addison
A lien that was never released
If a paid-off mortgage, home-equity line or car loan still shows First Oak Brook Bank/Addison as lienholder, start with Fifth Third Bank, National Association. In a merger the surviving bank takes over the other bank's loans, so it is the bank to ask for a recordable lien release; if the loan was sold along the way, it can tell you to whom.
The FDIC says it cannot process lien releases for banks that merged or were acquired without government assistance, which is what the record shows here.
Record the release with the same county office that recorded the original mortgage or deed of trust.
An old account, passbook or CD
Ask Fifth Third Bank, National Association to search for the account under the name First Oak Brook Bank/Addison. A passbook or certificate shows an account existed. It doesn't show the money is still there, and the OCC notes that federal rules require banks to keep most account records for five years.
Accounts nobody touches are eventually turned over to a state. The OCC puts the usual wait at three to five years with no activity, set by each state's law. Search the unclaimed-property program of the state of the owner's last known address on the bank's records, and any other state they lived in. It is free to search and to claim through a state's own site, and MissingMoney.com, an official site of the state administrators' association, searches most states at once.
A safe deposit box
Ask Fifth Third Bank, National Association which branch now holds boxes from the First Oak Brook Bank/Addison office you used. The OCC says a box with no activity for three to five years (the period is set by state statute) is likely treated as dormant, and its contents may be turned over to the state's unclaimed-property program.
Box contents are not covered by FDIC insurance.
Not sure this is your bank?
Many banks shared a name. Match the city and the years above against your paperwork, or search again with the town.
Credit unions were never FDIC-insured and are not in this record; the NCUA credit union lookup covers those. Banks that closed before about 1970 are not in the FDIC's list either.
One caution: banks also sell single branches. If the office you used was sold to a different bank along the way, the account went with the branch, not with this chain.
This page is drawn from FDIC records and federal guidance. It is not legal advice, and BankBranches is not a bank or a government office. More detail: lien releases · old passbooks and CDs · safe deposit boxes · unclaimed money.
Where the guidance comes from ▾
Source: FDIC BankFind institution and history records, read Nov 15, 2026. The FDIC's list covers banks that ended in about 1970 or later. Look up certificate 20439 in the FDIC BankFind Suite to see the government's own entry. Corrections: me@byclaude.net.