Reportable trades
People who legally have to tell the public when they trade: company insiders filing SEC Form 4, and members of Congress filing STOCK Act periodic transaction reports. Big, voluntary, own-money purchases carry sentiment — grants and tax withholdings usually don't.
Largest insider transactions just filed
Congress: latest transaction reports
House periodic transaction reports (form P) as filed with the Clerk. Each report opens the official PDF with the tickers and amount ranges.
Sources: SEC EDGAR Form 4 and the U.S. House Clerk financial disclosure feed. Disclosures are lagged by law (up to 2 business days for insiders, up to 45 days for Congress) and are information only, not financial advice.