Debevoise Advises AIG in Its Strategic Investments in Convex and Onex

31 October 2025

Debevoise & Plimpton LLP is advising American International Group, Inc. (NYSE: AIG) in its strategic investment of approximately $2.1 billion in Convex Group Limited, a global specialty insurer, and approximately $646 million in Onex Corporation, a global asset manager. For more information, please see the company’s press release.

The Debevoise team is led by insurance M&A partners Marilyn Lion and Paulina Stanfel and includes international consultant Clare Swirski, counsel Sergej Bräuer and associates Bethania Berhane, Laura Jackson and Nicholas Vota and law clerk Xuan Yi Lee, tax partner Daniel Priest, associate Sabrina Hsieh and law clerk Travis Long, investment management partner Shawn D’Aguiar and counsel Xiao Luo, and antitrust partner Timothy McIver, counsel Anne-Mette Heemsoth and associate Megan MacDonald.