Insider Radar — Week of September 21, 2026

Reported insider buying was $381.2 million in the week of September 21 and selling was $2.06 billion, a ratio of 5.4 to 1 against a median of 11.7 over the preceding twenty-six weeks. Almost half of the buying is one holder: Berkshire Hathaway added $188.2 million of Lennar in its second week of Form 4 filings on the company. Purchases by officers and directors came to $79.7 million, led by the chief executives of Grab and GameStop.