GlobeNewswire Inc | Jun 29, 2021 04:05PM EDT

June 29, 2021

LITTLE ROCK, Ark., June 29, 2021 (GLOBE NEWSWIRE) -- Bank OZK (the Bank) (Nasdaq: OZK) expects to report second quarter 2021 earnings after the market closes on Thursday, July 22, 2021. Managements comments on the second quarter of 2021 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, July 23, 2021. 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 3462545. The call will be available live or in a recorded version on the Banks investor relations website ir.ozk.com under Q1 Earnings Conference Call Webcast.

GENERAL INFORMATIONBank OZK (Nasdaq: OZK) is a regional bank providing innovative financial solutions delivered by expert bankers with a relentless pursuit of excellence. Established in 1903, Bank OZK conducts banking operations through 250 offices in eight states including Arkansas, Georgia, Florida, North Carolina, Texas, New York, California and Mississippi and had $27.28 billion in total assets as of March 31, 2021. 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 https://ir.ozk.com/other/email-notification/default.aspxto sign up.

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