X0508 4 2025-07-25 0001997350 Accelerant Holdings ARX 0001241965 RADKE JEFFREY L UNIT 106, WINDWARD 3 REGATTA OFFICE PARK, WEST BAY ROAD GRAND CAYMAN E9 KY1-1108 CAYMAN ISLANDS true true true Co-Founder, CEO false Class A Common Shares 2025-07-25 4 C 0 33464 A 33464 D Class A Common Shares 2025-07-25 4 C 0 27945395 A 27945395 I By LLC Class A Common Shares 2025-07-25 4 C 0 249828 A 249828 I By Trust LP Interests of Accelerant Holdings LP 2025-07-25 4 C 0 3265 0 D Class A Common Shares 33464 0 D LP Interests of Accelerant Holdings LP 2025-07-25 4 C 0 204207109 0 D Class A Common Shares 27945395 0 I By LLC LP Interests of Accelerant Holdings LP 2025-07-25 4 C 0 24372 0 D Class A Common Shares 249828 0 I By Trust In connection with the Issuer's initial public offering, these limited partnership interests of Accelerant Holdings LP were exchanged for Class A Common Shares of the Issuer in proportion to the economic interests represented by the limited partnership interests. These securities are held directly by Badly Bent LLC. The Reporting Person is the manager of the sole member of Badly Bent LLC. The Reporting Person disclaims beneficial ownership over these securities, except to the extent of his pecuniary interest therein. These securities are held in trust for the benefit of the Reporting Person's spousal equivalent, who is the trustee of the trust. The Reporting Person disclaims beneficial ownership over these securities, except to the extent of his pecuniary interest therein. /s/ Robert Hardy, Attorney-in-Fact 2025-07-29