An affiliate files Form 144 when they intend to sell restricted or control securities under Rule 144. A Form 4 reports a trade that already happened. A Form 144 is filed no later than the sell order, so it is the closest thing EDGAR has to advance notice. The approximate sale date on the notice is the filer's own estimate, and filing does not commit anyone to sell. Some announced sales never happen.
A notice on its own can mislead. A Rule 10b5-1 sale planned months ago tells you little. A discretionary sale filed the week after a run-up in the price tells you more. What you want to know next is whether the sale went through, at what price, and whether it was part of a plan, which means matching each notice to the Form 4 that follows. That matched view is part of the Advanced plan.
More on the difference between the two forms: Form 4 vs Form 144. For completed sales, see the insider selling feed.
Coverage: notices collected from EDGAR since April 2026. Filer and size details are parsed reliably from August 2026, and notices without them are left out rather than shown blank. Every row links to its source document on SEC.gov.