Sidley Advises Aspen on Its US$397.5 Million Upsized Initial Public Offering

Sidley represented Aspen Insurance Holdings Limited as issuer’s counsel in its pricing of its upsized initial public offering of 13,250,000 of its Class A ordinary shares, par value US$0.001 per share (ordinary shares), at a price to the public of US$30 per ordinary share. The ordinary shares were sold by certain entities managed by affiliates of Apollo Global Management, Inc. and began trading under the ticker symbol “AHL” on the New York Stock Exchange on May 8, 2025.

The deal team was led by Sam Gandhi, Rob Ryan, and Adam Gross, and included Demetrius Watson, Jennifer Lin, and Amy Jang (all Capital Markets).