Duncan D. McCulloch’s holdings in IDEXX Laboratories (IDXX) are substantial, reflecting his commitment to the company. In recent years, his wealth tied to IDEXX stock has shown impressive growth, especially between 2020 and 2023 where the value of his stock...

Duncan D. McCulloch’s holdings in IDEXX Laboratories (IDXX) are substantial, reflecting his commitment to the company. In recent years, his wealth tied to IDEXX stock has shown impressive growth, especially between 2020 and 2023 where the value of his stock options increased from $13.35 million to over $34 million at their peak. This significant appreciation indicated McCulloch's confidence in his leadership as the company expanded in the diagnostics sector. Many observers noted that his stock holdings rarely dipped below $22 million, exemplifying a strong commitment to the company’s vision. McCulloch's holdings hit a high of around $34.47 million in August 2021 and have generally remained strong, showcasing a stable financial outlook as he continues to lead IDEXX.