Insider trading on December 4, 2025
57 insiders at 58 companies bought $33M of their own stock on the open market, across 73 transactions. The largest was Fairmount Funds Management LLC, Director, 10% Owner, buying $18.2M of Crescent Biopharma, INC. (CBIO).
20 chief executives bought: Hughes Owen at XOMA, Barber James J. at VSTS, Biglari, Sardar at BH and 17 more.
Insiders sold $443.4M across 352 open-market sales. That is 13.5× 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.
IESCSSELL$15.1M
Gendell Jeffrey L Et Al · Executive ChairmanDec 4, 2025
35,823 sh @ $420.52 · -0.3% own
IESCSSELL$5.3M
Gendell Jeffrey L Et Al · Executive ChairmanDec 4, 2025
12,528 sh @ $423.69 · -0.1% own