Rountree George Manning
Chief Executive Officer
Rountree George Manning has filed 1 SEC Form 4 filing (1 transaction rows) across 1 company, with disclosures dating back to 2025. 1 of those filings fall inside the rolling window. Most recent filing: Dec 22, 2025.
On the most recent filing, Rountree George Manning is listed as Chief Executive Officer at WHITE MOUNTAINS INSURANCE GROUP LTD. Inside the rolling window, Rountree George Manning reported no open-market purchases and 1 open-market sale totaling $10.3M in WTM.
Companies traded
Other insiders at WTM
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$10.3M
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Rountree George Manning made?
Rountree George Manning has filed 1 SEC Form 4 filing (1 transaction rows) across 1 company since 2025.
Which companies does Rountree George Manning trade?
Rountree George Manning has filed SEC Form 4 disclosures for 1 company, including WTM.
When was Rountree George Manning's most recent SEC Form 4 filing?
Rountree George Manning's most recent SEC Form 4 filing on Tracefour is dated Dec 22, 2025.
What is Rountree George Manning's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Rountree George Manning is listed as Chief Executive Officer.
What is Rountree George Manning's total buy and sell value in the current window?
Inside the rolling retention window, Rountree George Manning bought $0 and sold $10.3M based on SEC Form 4 filings.
What was Rountree George Manning's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 5,000 WTM shares on 2025-12-19, worth $10.3M, per SEC Form 4 filings.