Private company
Who owns Convex Group Limited
One company in the researched set discloses a stake in Convex Group Limited, worth $2.19bn between them. Convex Group Limited is private, so no 13F reports it: a 13F covers exchange listed positions only. These figures exist because each holder disclosed the stake in its own filings.
Convex Group Limited - Profile
- Type
- private company
- Based in
- Bermuda
- Founded
- 2019
Convex Group Limited is the Bermuda based non operating holding company of the Convex specialty insurance and reinsurance group, founded in 2019 by Stephen Catlin and Paul Brand with 1.7 billion dollars of committed capital and no legacy reserves from prior underwriting years. Its operating subsidiaries underwrite insurance and reinsurance for complex specialty risks written for large commercial clients, across lines that include property, marine, energy, aviation, cyber, casualty and credit, from platforms in Bermuda, London, Guernsey and Luxembourg. The group reported gross written premium of 5.2 billion dollars in 2024 with a combined ratio of 88 percent, having recorded its first annual net profit of 503 million dollars in 2023.
Source
Convex Group Limited files nothing with the SEC, so none of this comes from a filer record. The description was written for this site in August 2026 from Convex Insurance: About Us, Convex Insurance: Locations and Onex Invests in Convex (PSP Investments news hub). The ownership figures below come from the holders' filings instead, and are sourced row by row.
The disclosed stakes
One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.
Where each figure comes from
A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.
- American International Group, Inc. (AIG), as of 30 Jun 2026. AIG's Q2 2026 10-Q, Strategic Investments note: on 6 Feb 2026 AIG closed its acquisition of a 35 percent equity interest in Convex Group Limited, a global specialty (re)insurer, for $2.1 billion, alongside Onex Corporation's simultaneous acquisition of a majority stake, taking Onex to approximately 63 percent. AIG accounts for the stake as an equity-method investment within Other invested assets and records its proportionate share of Convex's net income, less amortization of acquisition-basis differences, in Net investment income. The 10-Q's Other Invested Assets table shows 'Investment in Convex' at a carrying value of $2,188 million as of 30 Jun 2026 (nil at 31 Dec 2025, since the deal had not yet closed). Convex is private, so no share count or per-share price is disclosed or derivable. source
What this page is not
It is not a complete register. It lists the holders who happen to be inside the researched set and disclosed the stake themselves. A private company can have many other shareholders, and nothing here rules them out: venture investors, founders and employees usually appear in no public filing at all. Percentages are of Convex Group Limited where a holder stated one, and are missing where no holder did.