Insider buyers were busy on Mar 27, 2023: 40 companies, $254.2 million in open-market purchases all told. OXY topped the list with roughly $216.2 million, led by BERKSHIRE HATHAWAY INC.
136 companies had three or more insiders buying in the past 30 days. Eight 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.