CERRITOS, Calif., June 03, 2026 (GLOBE NEWSWIRE) -- GEN Restaurant Group, Inc. ("GEN" or the "Company") (NASDAQ:GENK), owner and operator of GEN Korean BBQ, today announced the appointment of Luke A. Hewko, CPA, as Chief Financial Officer, principal financial officer, and principal accounting officer, effective June 1, 2026. Mr. Hewko succeeds Thomas V. Croal, who is retiring following a planned CFO succession process. "This was a planned leader…