These insiders are dip-buyers as the market pummels their stocks this week

Daniel Ek, chief executive officer and co-founder of Spotify AB, stands for a photograph after a news conference in Tokyo, Japan, on Thursday, Sept. 29, 2016.
Akio Kon | Bloomberg | Getty Images

This week's market rout created a buying opportunity for many insiders, as they picked up beaten-down shares of their companies.