Arkolith/Insider Trading/WTM/Form 4

Carlson Peter M

DirectorWHITE MOUNTAINS INSURANCE GROUP LTD (WTM) · full profile →Form 4 · filed Sep 22, 2022
Net Selling
Open-Market Buys
$0
Open-Market Sells
$280K
Net Open-Market Flow
-$280K
Transactions
1
1 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Sep 20, 2022Sell(S)200$1400.00$280K788

Transaction Codes

S
Open-market sale

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001062993-22-019881) within minutes of acceptance. Every field above traces to the original document. Verify it directly:

View original filing on SEC.govRaw Form 4 XML

Keep exploring

Connected pages for WHITE MOUNTAINS INSURANCE GROUP LTD

Build

Build on these Form 4 transactions

The public view is the crawlable proof. The same sourced dataset is available through REST and MCP for agents, research scripts, and back-office tools.

Form 4 insider API

Open-market buys and sells, cluster scans, company flows.

insider.transactions

13F holdings API

Owners, holdings, deltas, point-in-time portfolios.

stock.owners

MCP quickstart

Connect an agent, mint a key, make the first call.

/api/mcp