Insider trading on June 12, 2026
84 insiders at 77 companies bought $125M of their own stock on the open market, across 107 transactions. The largest was Zanganeh Mahkam, Co-Chief Executive Officer, buying $50M of Summit Therapeutics Inc. (SMMT).
19 chief executives bought: Zanganeh Mahkam at SMMT, Duggan Robert W at SMMT, Huang Jack Jiajia at COE and 16 more.
Insiders sold $617.6M across 526 open-market sales. That is 4.9× the value bought. Selling routinely outweighs buying, because most executive pay is delivered in stock.
Open-market purchases
Code P only — insiders spending their own money, largest first.
Open-market sales
Pre-arranged 10b5-1 trades are marked.