Insiders Buy Waste, Dump Oil and Chips

Insider buying and selling signals are diverging sharply this month. The ORTEX screening data shows a clear pattern: insiders are stepping into beaten-down names while cashing out of big winners.

Biggest Buyers

Republic Services leads all US companies for insider buying in the past month. The waste-management giant is flat year-to-date. That makes the buying more meaningful — insiders are not riding a rally. Lennar Corporation follows closely. The homebuilder is down 21% this year. Directors appear to be betting the housing slump is overdone.

Madison Air Solutions also shows heavy buying. The HVAC distributor listed recently and has no YTD return on record. Insider purchases at newly public companies carry extra weight.

Biggest Sellers

Diamondback Energy tops the sell list. The oil producer is up 24% in 2026. Executives appear to be trimming into strength.

NVIDIA ranks second for insider disposals. The chipmaker is up 21% YTD. Insiders have been steady sellers through its run higher. Dell Technologies shows even more striking selling — the stock is up 337% over the past year. That scale of gains makes executive selling understandable.

Palantir also features among top sellers despite a 16% year-to-date decline. That discretionary selling into weakness is worth watching closely.

This article is for informational purposes only and is not financial advice.