The insider network

Most people who file a Form 4 file at one company. Some file at a dozen. This page starts from those, and draws the companies their filings connect — a fund holding stakes across a sector, a director sitting on several boards, a bank appearing wherever it is a 10% holder.

Every line is a Form 4 that exists. Two owners filing at the same company are drawn as two lines to that company and never as a line to each other, because filing at the same place is not a relationship — what this does and does not claim.