Research · Living data · Updated 2026-07-17
A living feed of corporate-insider transactions from SEC Form 4 — who inside America's public companies is buying and selling their own stock.
"Insiders know their own company better than anyone" is a market cliché that happens to be backed by decades of research — and every one of their trades is disclosed. NextTrack tracks 14,329 corporate-insider transactions filed so far in 2026, each pulled from an SEC Form 4: executives, directors, and 10%-owners buying and selling their own stock. The count refreshes on every rebuild as new filings hit EDGAR.
| Metric | Live figure |
|---|---|
| NextTrack tracks | 14,329 insider transactions in 2026 |
| Last updated | 2026-07-17 |
When an insider — an officer, director, or 10%-plus owner — trades their company's stock, they must file an **SEC Form 4** within two business days. That filing is public, and it's the raw material for this tracker. Across the 14,329 2026 transactions here, each row carries who traded, the company, the shares, the price, and the transaction type.
The key nuance: not all transactions carry the same signal. Sales are noisy — insiders sell for taxes, diversification, and pre-scheduled 10b5-1 plans. Open-market **buys** are the cleaner signal, because there's really only one reason an insider spends their own money on more shares.
Academic work going back to Lakonishok and Lee found that insider purchases, in aggregate, modestly predict future returns — and that clustered buying (several insiders at one company buying at once) is stronger still. The intuition is simple: an executive buying more of a stock they already own heavily, with after-tax cash, is expressing conviction that's hard to fake. NextTrack surfaces the largest and most clustered buys so the signal isn't buried under routine, pre-planned selling.
With 14,329 transactions logged year-to-date, the tracker is a live read on insider sentiment across the market. The most useful views are the biggest open-market buys and the names where multiple insiders are buying together. The full tracker — filterable by company, insider role, transaction type, and size, with the largest recent buys surfaced — is in the app.
Insider transactions are ingested directly from SEC Form 3/4/5 filings on EDGAR, parsed into structured buy/sell records, and matched to the company and the ticker. Because the pipeline reads EDGAR directly, new trades appear here within a day of filing. For the institutional counterpart to insider activity, see [top 13F institutional ownership changes](/research/13f-institutional-ownership).
Top 13F institutional ownership · Activist investor campaigns 2026 · Short squeeze candidates