The board of directors of AXIS Capital Holdings Limited (AXS) authorized a share buyback program to return more value to investors. The latest authorization will allow the company to spend up to $300 million to repurchase its common stock.The new program is in addition to the previously approved $100 million share repurchase program. After buying back $76 million worth of shares in the first quarter of 2024 and another $2 million worth in April, the insurer had $36 million remaining under its previous autho ...