Arkolith/Insider Trading/KMX/Form 4

ONeil Mark F

DirectorCARMAX INC (KMX) · full profile →Form 4 · filed Oct 6, 2025
Net Buying
Open-Market Buys
$500K
Open-Market Sells
$0
Net Open-Market Flow
$500K
Transactions
1
1 non-derivative · 0 derivative

Non-Derivative Transactions (Table I)

DateActionSharesPriceValueOwned After
Oct 2, 2025Buy(P)11K$46.21$500K25K

Transaction Codes

P
Open-market purchase

Data Source & Provenance

Parsed from a single SEC EDGAR Form 4 filing (accession 0001170010-25-000123) 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 CARMAX INC

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