40 companies had insiders buying on the open market in filings dated Mar 15, 2023, about $549.2 million combined. At the top: OXY, $466.7 million bought, with BERKSHIRE HATHAWAY INC as the largest buyer.
Cluster buying (3+ insiders) is running at 109 companies this month. Ten of the buys came from a CEO or CFO. As always, a purchase is a data point, not a recommendation.