During his tenure as CEO of GMS Inc., Callahan’s holdings in the company peaked at approximately $32 million in November 2021. This peak demonstrates his confidence and heavy investment in GMS, reflecting his belief in the potential growth of the...

During his tenure as CEO of GMS Inc., Callahan’s holdings in the company peaked at approximately $32 million in November 2021. This peak demonstrates his confidence and heavy investment in GMS, reflecting his belief in the potential growth of the company. Post-retirement, his holdings fluctuated, reaching $28 million by early 2022 and gradually declining to about $24 million in the following months. Interestingly, the highest value he achieved was during a period when the company's market performance was strong, showcasing how executive confidence can translate into substantial personal wealth tied to company performance. Overall, his holdings have shown resilience, indicating his ongoing connection to GMS's success even after his retirement.