Filings for Dec 13, 2023 show insider purchases at 40 companies, adding up to roughly $634.9 million. The biggest was OXY (OCCIDENTAL PETROLEUM CORP /DE/), where BUFFETT WARREN E led about $588.7 million of buying.
Cluster buying (3+ insiders) is running at 103 companies this month. Seven of the buys came from a CEO or CFO. As always, a purchase is a data point, not a recommendation.