Insider Trading Tracker: Executive Buys & Sells
Corporate insiders — officers, directors, and 10% shareholders — are required to disclose their trades in the companies they work for via SEC Form 4 within two business days. We aggregate every Form 4 filing across the U.S. large cap public-company universe and surface the companies seeing the heaviest insider conviction, as measured by dollar-volume of open-market buys. Insider buying has historically been a more informative signal than selling (which can be driven by liquidity, tax, or diversification), so the default view below ranks issuers by insider-buy dollars.
Top 15 Companies by Insider Buying Last 90 days
Aggregate dollar-volume of open-market purchases by named insiders (Form 4, transaction type Buy). Sorted by buy $.
| # | Ticker | Company | Industry | Insider Buys ($) |
|---|---|---|---|---|
| 1 | WRB | BERKLEY W R CORP | Fire, Marine & Casualty Insurance | $243.46M |
| 2 | TTD | Trade Desk, Inc. | Services-Computer Programming, Data Processing, Etc. | $148.10M |
| 3 | KKR | KKR & Co. Inc. | Investment Advice | $50.93M |
| 4 | MGM | MGM Resorts International | Hotels & Motels | $37.22M |
| 5 | PSA | Public Storage | Real Estate Investment Trusts | $30.00M |
| 6 | LW | Lamb Weston Holdings, Inc. | Canned, Frozen & Preservd Fruit, Veg & Food Specialties | $18.81M |
| 7 | NDAQ | NASDAQ, INC. | Security & Commodity Brokers, Dealers, Exchanges & Services | $16.79M |
| 8 | BRK.A | BERKSHIRE HATHAWAY INC | Fire, Marine & Casualty Insurance | $15.31M |
| 9 | IFF | INTERNATIONAL FLAVORS & FRAGRANCES INC | Industrial Organic Chemicals | $11.96M |
| 10 | FOX | Fox Corp | Television Broadcasting Stations | $10.63M |
| 11 | PANW | Palo Alto Networks Inc | Computer Peripheral Equipment, NEC | $10.00M |
| 12 | MSCI | MSCI Inc. | Services-Business Services, NEC | $5.56M |
| 13 | BLDR | Builders FirstSource, Inc. | Retail-Lumber & Other Building Materials Dealers | $4.39M |
| 14 | IP | INTERNATIONAL PAPER CO /NEW/ | Paper Mills | $4.01M |
| 15 | POOL | POOL CORP | Wholesale-Misc Durable Goods | $3.63M |
Insider Flow Charts
Industry buy/sell dollar volume and company treemaps for the last 90 days — click any company cell to open its institutional-holders page.
Highest Insider Buying: Top 10 Industries by Dollar Amount
40 industries totalTop 50 Companies by Insider Buying
50 issuersTop 50 Insiders by Dollar Amount
50 insidersTransaction Drilldown
Search by company ticker or industry to load every individual Form 4 filing row. Filter by timeframe and transaction type, then sort any column. Click a ticker to jump to its institutional-ownership page.
Methodology & FAQ
Methodology: SEC Form 4 Insider Trading Coverage
Data is extracted from Form 4 filings submitted to the SEC EDGAR system. Each row reflects a disclosed transaction by a named corporate insider.
- Who files: Officers, directors, and beneficial owners of more than 10% of any class of the issuer's voting equity must report on Form 4, generally within two business days.
- Transaction types: We classify lines as Buy, Sell, Grant, Exercise, or Other according to the filing. The Transaction Drilldown supports filtering these types independently of the chart bundle.
- Top-15 leaderboard: The static table ranks issuers by aggregate open-market buy dollar volume over the last 90 days so large-dollar conviction is not drowned out by tiny share-count trades.
- Transaction Drilldown: Pick a ticker or industry to load individual Form 4 rows for your timeframe and type filters; sort columns and follow tickers to institutional-ownership pages for 13F context.
What is SEC Form 4 and who must disclose insider trades?
Corporate insiders—officers, directors, and beneficial owners of more than 10% of any class of voting equity—must report changes in their company stock holdings on SEC Form 4, generally within two business days of the transaction. Filings are published on EDGAR; we aggregate those disclosures into issuer-level summaries and row-level transaction tables.
How are insider transactions classified on this page?
Each reported line is mapped to a transaction type: Buy (open-market purchase), Sell (open-market sale), Grant (equity compensation award), Exercise (option exercise), or Other. The Transaction Drilldown lets you choose which types appear in the detailed table; charts and KPIs use a broader default set unless noted.
How is the Top 15 Companies by Insider Buying table ranked?
The static leaderboard ranks issuers by aggregate dollar value of open-market insider purchases (Buy) over the last 90 days in our database. We use dollar volume rather than raw share count so a large-dollar purchase is not dominated by low-price, small-dollar trades.
How does the Transaction Drilldown work?
Select a company (ticker) or an industry to load individual Form 4 transaction rows from our API for the timeframe and transaction-type filters you choose. Sort any column and use “Show more” to page through results. Ticker cells link to the corresponding institutional-ownership page for 13F holder context.
Why does the default leaderboard emphasize insider buying?
Open-market insider selling is common for liquidity, tax, diversification, and compensation-related reasons and is often a weaker directional signal than discretionary buying. The top-issuer ranking therefore highlights buy dollar volume; selling and other activity remain visible in charts and in the drilldown when you include those transaction types.
Data source: Aggregated from public SEC Form 4 filings via the EDGAR database.