Insider buyers were busy on Apr 8, 2021: 17 companies, $102.2 million in open-market purchases all told. COMP topped the list with roughly $72 million, led by SB INVESTMENT ADVISERS (UK) LTD.
C-suite buying: two companies. 77 companies had three or more insiders buying in the past 30 days. One buy doesn't make a thesis, but it's a good place to start digging.