News/Reuters/Okasan Securities Group Inc: Bought Back 1.5 Million Own Shares W…Okasan Securities Group Inc: Bought Back 1.5 Million Own Shares Worth 615 Million Yen In JanuaryFeb 1, 202306:05 UTC88609Okasan Securities Group Inc 88609:OKASAN SECURITIES GROUP INC - BOUGHT BACK 1.5 MILLION OWN SHARES WORTH 615 MILLION YEN IN JANUARY