Legal Insider Trading Data | Free and Professional Subscription Services | Insider Insights urn:uuid:47cfb81b-b957-d9e0-38ed-a48d59b7ceb5 2026-10-24T22:48:56-04:00 Jonathan Moreland Profit from legal insider trading. InsiderInsights.com provides free insider trading data tools and resources, and professional grade subscription based real time Form 4 data, analysis and services WTM: TANNER DAVID ALLEN (DIR) Disposed (JS) 2 Shares of WHITE MOUNTAINS INSURANCE GROUP LTD for $0.00 on 8/31 urn:uuid:5f01d3f6-87d7-dc98-b55d-6c5fab536971 2026-08-31T17:04:16-04:00 WTM: KLAR STEPHEN (DIR) Acquired (JB) 113 Shares of WHITE MOUNTAINS INSURANCE GROUP LTD for $0.00 on 8/26 urn:uuid:748de7e6-4d43-d799-c084-cc27916abdb6 2026-08-27T15:46:03-04:00 WTM: KLAR STEPHEN (DIR) Filed a Form 3, Becoming a Registered Insider at WHITE MOUNTAINS INSURANCE GROUP LTD With Initial Direct Holdings of 0 urn:uuid:347f867a-e4a4-5a26-54e6-e2b2acd9f810 2026-08-27T15:39:53-04:00 WTM: TANNER DAVID ALLEN (DIR) Acquired (JB) 135 Shares of WHITE MOUNTAINS INSURANCE GROUP LTD for $0.00 on 5/21 urn:uuid:f5e62818-1baf-de43-9130-6cb16a7431f4 2026-05-22T10:35:21-04:00 WTM: SHANK SUZANNE F (DIR) Acquired (JB) 135 Shares of WHITE MOUNTAINS INSURANCE GROUP LTD for $0.00 on 5/21 urn:uuid:da681557-ad66-f691-c851-f8623d592224 2026-05-22T10:35:04-04:00 WTM: HICKS WESTON M (DIR) Acquired (JB) 190 Shares of WHITE MOUNTAINS INSURANCE GROUP LTD for $0.00 on 5/21 urn:uuid:e4056a9c-0a4e-b499-ed6f-814ea1eb9142 2026-05-22T10:34:37-04:00 WTM: GELSTON PHILIP A (DIR) Acquired (JB) 135 Shares of WHITE MOUNTAINS INSURANCE GROUP LTD for $0.00 on 5/21 urn:uuid:fa1b8982-eb05-15ad-115f-ebb1bf7ed3c1 2026-05-22T10:34:10-04:00 WTM: DILLON MARGARET (DIR) Acquired (JB) 135 Shares of WHITE MOUNTAINS INSURANCE GROUP LTD for $0.00 on 5/21 urn:uuid:c285a7b2-55f5-bb72-61e5-112deb8c7e9e 2026-05-22T10:33:35-04:00 WTM: CHU JOHN (DIR) Acquired (JB) 135 Shares of WHITE MOUNTAINS INSURANCE GROUP LTD for $0.00 on 5/21 urn:uuid:3feb491e-bb0b-9eaa-aeb4-a8ced3347b70 2026-05-22T10:32:56-04:00 WTM: CHU JOHN (DIR) Filed a Form 3, Becoming a Registered Insider at WHITE MOUNTAINS INSURANCE GROUP LTD With Initial Direct Holdings of 200 urn:uuid:4980457f-8118-0052-ad0c-6ee1023d3f4a 2026-05-22T10:32:35-04:00