Filings for Jan 27, 2021 show insider purchases at 22 companies, adding up to roughly $80.5 million. The biggest was FRG (Franchise Group, Inc.), where Vintage Capital Management LLC led about $26.5 million of buying.
57 companies had three or more insiders buying in the past 30 days. C-suite buying: five companies. One buy doesn't make a thesis, but it's a good place to start digging.