CAMPBELL REID TARLTON (EVP & Chief Financial Officer) sold 32.4% of their position (5K shares) of WHITE MOUNTAINS INSURANCE GROUP LTD on the open market
Insider sale on the open market — a major position exit. Check remaining position size for full context.
S · 1 sale
Filed: 12/22/2025ACC: 0000776867-25-000030
Officer· EVP & Chief Financial Officer
Since Jan 2019
-5K
Net shares
Net seller
$0.00
Total acquired
1
Open market trades
0B · 1S
1
Total transactions
5K disposed
Non-Derivative Transactions1
Common Shares
Direct
Shares
−5K
Price / share
—
Trade value
—
% of position
32.4%
12/19/2025
15.44K→10.44K
Total
Net shares
−5K
Net value
$0.00
| Security | Date | Type | Shares | Price / Share | Trade Value | % of Position | Held Before | Held After |
|---|---|---|---|---|---|---|---|---|
| Common Shares Direct | 12/19/2025 | S · Sale | −5K | — | — | 32.4% | 15.44K | 10.44K |
| Total | −5K | $0.00 | ||||||
Derivative Transactions0
No derivative transactions reported
Non-Derivative Holdings (Post-Transaction)1
Common Shares
IndirectShares owned119.00
Total
119.00 indirect119.00
| Security Title | Shares Owned | Ownership Type |
|---|---|---|
| Common Shares | 119.00 | Indirect |
| Total | 119.00 | 119.00 indirect |
Derivative Holdings (Post-Transaction)0
No derivative holdings reported