Executives Buy Big as Silver Lake Dumps Dell

The week's standout insider story is a massive exit at DELL. Silver Lake Group — a board-level 10% owner — filed disclosures showing it sold over $714 million worth of Dell shares between June 2 and June 10. The selling spanned 664 separate transactions across multiple Silver Lake entities. Total proceeds across the fund family topped $815 million.

On the other side of the ledger, one CEO is betting big on his own stock. Bob Duggan, Chairman and CEO of SMMT, filed on June 12 showing he purchased nearly $50 million in Summit Therapeutics shares at $13.12 each — buying 3.81 million shares in a single day. Duggan has a history of large personal purchases, but this filing stands out for its size and timing.

At ASTS, CFO Andrew Johnson filed a $4.3 million sale on June 12. He sold around 45,800 shares at roughly $93.81 each. AST SpaceMobile shares have rallied sharply this year, and the filing suggests the CFO is locking in some gains.

Three insiders at GBTG also filed sales this week. Global Business Travel Group's Chief Strategy Officer sold $3.3 million worth of shares on June 9. Two other executives filed smaller sales around the same time, signalling a cluster of insider selling at the travel tech firm.