Sellers Circle Arista, Buyers Back Simon Property

Tech insiders are cashing out. Arista Networks tops the list of stocks where insiders have sold the most over the past month. Executives filed sales as analysts trimmed price targets ahead of the company's Q3 results. The stock is up 31.5% year-to-date, giving sellers a natural exit point at elevated prices.

Snowflake and CrowdStrike sit alongside Arista in the high-selling cohort. Both carry low insider momentum scores for October. Dell Technologies also appears in the same group, notable given its extraordinary 263% gain this year.

On the buying side, Simon Property Group registers among the strongest insider buying momentum in the US over the past month. Directors at the $68B mall REIT have been adding shares. Quest Diagnostics shows a similar pattern. Its stock is up nearly 40% year-to-date, yet insiders continued to buy rather than take profits.

H.B. Fuller stands out among mid-caps. The chemicals maker, down 17% this year, attracted buying from directors, a sign management may view the pullback as overdone.

Lennar recorded the largest single block of insider buying among homebuilders in the past month. That is notable given the stock is down 17% year-to-date and carries a short interest DTC of 7.4 days, meaning short sellers remain a meaningful force against the name.