GlobeNewswire Inc | Sep 30, 2020 04:01PM EDT

September 30, 2020

LITTLE ROCK, Ark., Sept. 30, 2020 (GLOBE NEWSWIRE) -- Bank OZK (the Bank) (Nasdaq: OZK) expects to report third quarter 2020 earnings after the market closes on Thursday, October 22, 2020. Managements comments on the third quarter of 2020 will be released simultaneously with the earnings press release and will be available on the Banks investor relations website.

Management will conduct a conference call to take questions at 10:00 a.m. CT (11:00 a.m. ET) on Friday, October 23, 2020. Interested parties may listen to this call by dialing 1-844-818-5110 (U.S. and Canada) or 210-229-8841 (international) and asking for the Bank OZK conference call. A recorded playback of the call will be available for one week following the call at 1-855-859-2056 (U.S. and Canada) or 404-537-3406 (international). The passcode for this playback is 4644917. The call will be available live or in a recorded version on the Banks investor relations website ir.ozk.com under Company News/Webcasts.

GENERAL INFORMATIONBank OZK (Nasdaq: OZK) is a regional bank providing innovative financial solutions delivered by expert bankers with a relentless pursuit of excellence. Bank OZK was named Best Bank in the South for 2019-2020 by Money, the personal finance news and advice brand. Established in 1903, Bank OZK conducts banking operations through more than 250 offices in ten states including Arkansas, Georgia, Florida, North Carolina, Texas, Alabama, South Carolina, New York, California and Mississippi and had $26.38 billion in total assets as of June 30, 2020. Bank OZK can be found atwww.ozk.comand onFacebook,TwitterandLinkedInor contacted at (501) 978-2265 or P.O. Box 8811, Little Rock, Arkansas 72231-8811.

The Bank files annual, quarterly and current reports, proxy materials, and other information required by the Securities Exchange Act of 1934 with the Federal Deposit Insurance Corporation (FDIC), copies of which are available electronically at the FDICs website at https://efr.fdic.gov/fcxweb/efr/index.htmland are also available on the Banks investor relations website atir.ozk.com. To receive automated email alerts for these materials please visit http://ir.ozk.com/EmailNotificationto sign up.

Investor Relations Contact: Tim Hicks, (501) 978-2336Media Contact: Susan Blair, (501) 978-2217