REG — Hiscox Ltd — TR — 1:Standard form — notification of major holdings

For best results when printing this announcement, please click on link below: RNS Number: 5712V Hiscox Ltd 21 September 2026 TR-1: Standard form for notification of major holdings 1. Issuer Details ISIN BMG4593F1389 Issuer Name HISCOX LTD UK or Non-UK Issuer Non-UK 2. Reason for Notification An acquisition or disposal of voting rights 3. Details of person subject to the notification obligation Name Societe Generale City of registered office (if applicable) London Country of registered office (if applicable) United Kingdom 4. Details of the shareholder Full name of shareholder(s) if different from the person(s) subject to the notification obligation, above City of registered office (if applicable) Country of registered office (if applicable) 5. Date on which the threshold was crossed or reached 16-Sep-2026 6. Date on which Issuer notified 17-Sep-2026 7. Total positions of person(s) subject to the notification obligation % of voting rights attached to shares (total of 8.A) % of voting rights through financial instruments (total of 8.B 1 + 8.B 2) Total of both in % (8.A +.