Paydirt
WTM
Ticker

WHITE MOUNTAINS INSURANCE GROUP LTD

WTM

White Mountains Insurance Group Ltd (WTM) has 4 disclosed filings on Paydirt over the trailing twelve months from 3 corporate insiders: 0 purchases and 4 sales. Filers took a median of 3 days from execution to disclosure, and the most recent trade was executed Dec 19 2025 and filed Dec 22 2025. The most active filer was Reid Tarlton Campbell with 2 filings. Data as of Nov 8 2026.

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Filings, ttm
4
0 buys · 4 sells
Traders, ttm
3
3 insiders
Volume, ttmiDollar value disclosed in the window
$31.0M
estimated for Congress, as filed for insiders
Median delay
3d
execution to disclosure
Last traded
Dec 19 2025
Filed Dec 22 2025
ADViAverage daily dollar volume
–
not on file
Share price · 12M
$2,122 (+11.6%)
$2,319$2,100$1,881Nov 10 2025Mar 25Aug 5

Adjusted for splits and dividends.

Volume by month
$31.0M$15.5M$0Dec 2024Jun 2025Dec 2025Jun 2026Jul 2025 · buys $75KDec 2025 · sells $31.0M
Buys $75K Sells $31.0M

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed · past 24 months
RC Reid Tarlton Campbell Director 2 filings · 0 buys, 2 sales PG Philip A Gelston Director 1 filing · 0 buys, 1 sale JH James French Hill Representative (Spouse) 1 filing · 1 buy, 0 sales GR George Manning Rountree Chief Executive Officer 1 filing · 0 buys, 1 sale
Recent filings
George Manning RountreeSALE Chief Executive Officer $10.2M
5,000 sh × $2,050.00
Exec Dec 19 2025
Filed Dec 22 2025 · 5:30 PM ET Reid Tarlton CampbellSALE Director $10.2M
as filed
Exec Dec 19 2025
Filed Dec 22 2025 · 5:30 PM ET Reid Tarlton CampbellSALE Director $10.2M
5,000 sh × $2,050.00
Exec Dec 19 2025
Filed Dec 22 2025 · 5:30 PM ET Philip A GelstonSALE Director $338K
165 sh × $2,048.51
Exec Dec 16 2025
Filed Dec 16 2025 · 5:30 PM ET James French HillPURCHASE Representative $75K
$50K–100K bracket
Exec Jun 23 2025
Filed Jul 24 2025