Edited by Peter Hillerberg1 min readStories are generated from ORTEX data and reviewed by the ORTEX team. How we publish
Insiders at several large US companies have been filing notable sales over the past month. Diamondback Energy leads the selling list among large caps. The oil and gas producer is up 31% year to date, giving executives ample gains to take off the table. Dell Technologies follows, with the stock more than tripling in 2026. That kind of run typically brings heavier planned-sale activity.
The pattern extends across the technology sector. Insiders at CrowdStrike, NVIDIA, Broadcom, and Arista Networks all rank among the top US names by insider value sold in the past month. CrowdStrike is down 47% year to date despite the selling, which narrows the signal. NVIDIA and Broadcom remain near all-time highs. Selling from executives at stocks sitting near peaks carries more weight than selling into weakness.
On the buying side, Lennar stands out. The homebuilder is down 28% in 2026 and ranks as the top large-cap name by insider buying value over the past month. Insiders buying into a falling stock is a stronger signal than routine selling near highs. Lennar reports Q3 2026 results shortly.
Tyra Biosciences also shows elevated insider buying for its size. The biotech is down 29% year to date, and the ORTEX Insider Momentum score points to fresh accumulation at current levels. Corebridge Financial and Kodiak Sciences round out the notable buyers in recent weeks.
ORTEX Market Intelligence content is generated by AI from a snapshot of ORTEX's proprietary data and reviewed by the ORTEX team. Content is informational only and does not constitute investment advice.
