Insider buyers were busy on Jun 13, 2022: 40 companies, $62.6 million in open-market purchases all told. The biggest was NGM (NGM BIOPHARMACEUTICALS INC), where Column Group IV GP, LP led about $39.9 million of buying.
Seven of the buys came from a CEO or CFO. 179 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.