Who files each one, when, what it shows and what it does not. Short guides in plain words, each with links to the official rules and forms. Last reviewed October 5, 2026.
The filing in which a company's officers, directors and 10% owners report that they bought or sold its stock, due within two business days.
A notice that a company insider plans to sell shares. It says a sale is planned, not that it happened.
The quarterly report in which large investment managers list the US stocks they held on the last day of the quarter.
A schedule of future trades an insider sets up in advance, which is why a sale under one tells you less than an unplanned sale.
The 2012 US law that makes members of Congress report their stock trades publicly.
When an insider buys their own company's shares on the stock market with their own money.
These guides explain public filings. They are not legal or investment advice.