Filings for Jan 22, 2021 show insider purchases at 17 companies, adding up to roughly $780.3 million. The biggest was PRVL (Prevail Therapeutics Inc.), where Tyto Acquisition Corp led about $771.4 million of buying.
51 companies had three or more insiders buying in the past 30 days. CEOs and CFOs show up 3 times in today's list. One buy doesn't make a thesis, but it's a good place to start digging.