Mr. Zev Korman reports

ONEX RELEASES CONVEX FOURTH QUARTER AND FISCAL 2025 FULL SUPPLEMENTAL INFORMATION PACKAGE

Onex Corp. today released Convex Group Ltd.'s audited financial results for the fourth quarter and full year 2025. This supplemental information package follows the summary financial information released with Onex's results on Feb. 20 and is available on Onex's website. All amounts are in United States dollars unless otherwise stated

Convex delivered strong performance in 2025, with gross premium written and net premium earned increasing by 14 per cent and 20 per cent, respectively, year over year. Underwriting results remained robust with a combined ratio of 89 per cent and benefited from continued improvement in the expense ratio as Convex scales and captures operating leverage. Net income increased 40 per cent to $711-million in 2025, up from $506-million in 2024.

Onex invested $3.8-billion of capital in Convex on Feb. 6, 2026. Beginning in Q1 2026, Onex will provide an estimate of the fair value of its Convex investment.

About Onex Corp.

Onex invests and manages capital on behalf of its shareholders and clients across the globe. Formed in 1984, the company has a long record of creating value for its clients and shareholders. The company's investors include a broad range of global clients, including public and private pension plans, sovereign wealth funds, banks, insurance companies, family offices, and high-net-worth individuals. In total, Onex has approximately $59.2-billion in assets under management, of which $8.7-billion is Onex's own investing capital. With offices in Toronto, New York, New Jersey and London, Onex and its experienced management teams are collectively the largest investors across Onex's platforms.

Onex is listed on the Toronto Stock Exchange under the symbol ONEX.

We seek Safe Harbor.