Brief: Sompo Holdings Inc - To Buy Back Up To 3.53% Of Own Shares Worth 105 Billion Yen
May 20 (Reuters) - Sompo Holdings Inc 8630.T: SOMPO HOLDINGS INC - TO BUY BACK UP TO 3.53% OF OWN SHARES WORTH 105 BILLION YEN SOMPO HOLDINGS INC - TO RETIRE TREASURY SHARES WORTH 5.68% OF OUTSTANDING STOCK ON MAY 30 Source text: ID:nTSqt8841a Further company coverage: 8630.T