40 companies had officers and board members buying in open-market trades in filings dated Jan 3, 2022, about $106.1 million combined. The biggest was ASAN (Asana, Inc.), where Moskovitz Dustin A. led about $73.7 million of buying.
13 of the buys came from a CEO or CFO. 106 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.