WHITE MOUNTAINS INSURANCE GROUP LTD

USFinancialsSIC 6331

Company

WHITE MOUNTAINS INSURANCE GROUP LTD

USFinancialsSIC 6331

Filings

616

Transactions

1,023

Buys / Sells

133/192

Last tx

21 May 2026

Net insider flow

Discretionary BUY minus SELL in USD over rolling windows. Excludes compensation flow.

30 days

Buys—

Sells—

Tx · Insiders0 · 0

90 days

Buys—

Sells—

Tx · Insiders0 · 0

365 days

−$20.8M

Buys

Identifiers

Type	Value
cik	0000776867
ticker	WTM

Recent transactions

Date	Type	Insider	Qty
21 May 2026	GRANT_AWARD	CAMPBELL REID TARLTON	135
21 May 2026	GRANT_AWARD	CHOKSI MARY C	135
21 May 2026	GRANT_AWARD	Carlson Peter M	135
21 May 2026	GRANT_AWARD	Chu John	135
21 May 2026	GRANT_AWARD	Dillon Margaret	135

InsiderLens aggregates public information issued by financial regulators (SEC, AMF, FCA, BaFin, AFM, FI, HKEX, ASX). The service constitutes neither investment advice nor a recommendation to buy or sell. Past performance is no guarantee of future results. Investing in financial instruments carries the risk of capital loss.

Net insider flow

Discretionary BUY minus SELL in USD over rolling windows. Excludes compensation flow.

30 days

Buys—

Sells—

Tx · Insiders0 · 0

90 days

Buys—

Sells—

Tx · Insiders0 · 0

365 days

−$20.8M

Buys

Recent transactions

Date	Type	Insider	Qty
21 May 2026	GRANT_AWARD	CAMPBELL REID TARLTON	135
21 May 2026	GRANT_AWARD	CHOKSI MARY C	135
21 May 2026	GRANT_AWARD	Carlson Peter M	135
21 May 2026	GRANT_AWARD	Chu John	135
21 May 2026	GRANT_AWARD	Dillon Margaret	135