CAMPBELL REID TARLTON
SEC Form 4 insider trading activity
CAMPBELL REID TARLTON has filed 4 SEC Form 4 filings (4 transaction rows) across 1 company, with disclosures dating back to 2025. 4 of those filings fall inside the rolling window. Most recent filing: May 22, 2026.
On the most recent filing, CAMPBELL REID TARLTON is listed as Director at WHITE MOUNTAINS INSURANCE GROUP LTD. Inside the rolling window, CAMPBELL REID TARLTON 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 CAMPBELL REID TARLTON made?
CAMPBELL REID TARLTON has filed 4 SEC Form 4 filings (4 transaction rows) across 1 company since 2025.
Which companies does CAMPBELL REID TARLTON trade?
CAMPBELL REID TARLTON has filed SEC Form 4 disclosures for 1 company, including WTM.
When was CAMPBELL REID TARLTON's most recent SEC Form 4 filing?
CAMPBELL REID TARLTON's most recent SEC Form 4 filing on Tracefour is dated May 22, 2026.
What is CAMPBELL REID TARLTON's total buy and sell value in the current window?
Inside the rolling retention window, CAMPBELL REID TARLTON bought $0 and sold $10.3M based on SEC Form 4 filings.
What was CAMPBELL REID TARLTON's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 10,000 WTM shares on 2025-12-19, worth $10.3M, per SEC Form 4 filings.