X0609 4 2026-03-18 0 0001997350 Accelerant Holdings ARX 0001241965 RADKE JEFFREY L true UNIT 106, WINDWARD 3 REGATTA OFFICE PARK, WEST BAY ROAD GRAND CAYMAN E9 KY1-1108 1 1 1 0 Co-Founder, CEO 0 Class A Common Shares 2026-03-18 4 A 0 300171 0 A 333652 D Class A Common Shares 28261939 I By LLC Class A Common Shares 249951 I By Trust Represents an award of Restricted Stock Units granted on March 18, 2026. The RSUs are scheduled to vest as to twenty-five percent (25%) of the RSUs on the one-year anniversary of the Grant Date and as to six and one-quarter percent (6-1/4%) of the RSUs on the first day of each of the twelve (12) calendar quarters beginning after such anniversary. 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 spouse, 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/ David Pelsue, Attorney-in-Fact 2026-03-20