Here's what insiders bought in filings for Jun 23, 2021 — 25 companies and around $72.5 million in total. The biggest was VERV (Verve Therapeutics, Inc.), where Redmile Group, LLC led about $25.2 million of buying.
85 companies had three or more insiders buying in the past 30 days. Four of the buys came from a CEO or CFO. One buy doesn't make a thesis, but it's a good place to start digging.