Filings for May 3, 2023 show insider purchases at 40 companies, adding up to roughly $14.8 million. The biggest was AAT (American Assets Trust, Inc.), where RADY ERNEST S led about $5.7 million of buying.
72 companies had three or more insiders buying in the past 30 days. 12 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.