Hamilton Global Specialty announced that Niamh O?Brien has been appointed as chief actuary, effective June 1, 2024. O?Brien reports to Wilfred Chin who was recently promoted to Group Chief Actuary at Hamilton. O?Brien has worked with Hamilton since 2021 leading key actuarial reserving activity and providing advisory support as an actuarial consultant.

She brings broad industry experience and knowledge having spent over 20 years in senior actuarial roles, including with Catlin, Hiscox, W. R. Berkley and Tokio Marine Kiln.