IDEXX Laboratories Officer Files Form 144 to Sell $6.13M in Common Stock

Executive Summary

On November 4, 2026, Sharon E. Underberg, an Officer of IDEXX Laboratories, Inc. ($IDXX), filed SEC Form 144 indicating an intention to sell 8,906 shares of Common Stock with an estimated aggregate market value of $6,132,605.70 (approx. $688.59 per share).

Transaction Details

• Security: Common Stock
• Broker: Morgan Stanley Smith Barney LLC Executive Financial Services
• Approximate Date of Sale: November 4, 2026
• Acquisition History: The 8,906 shares were acquired on November 4, 2026, through a cash exercise of stock options granted by the issuer.
• Shares Outstanding Context: The proposed sale represents approximately 0.011% of the issuer's 78,786,265 shares outstanding.

Market Impact & Significance

This transaction is categorized as Medium Significance primarily due to the dollar value exceeding $6.1 million. However, because the shares are originating directly from a concurrent stock option exercise, it reflects typical executive equity compensation realization rather than an outright liquidation of long-held core shares.