During his time as CEO, Yabuki's stock holdings at Fiserv underwent considerable changes. His holdings dramatically increased, rising from $35.94 million in September 2019 to an astonishing $619.84 million by September 2024, showcasing the success and growth of Fiserv under...

During his time as CEO, Yabuki's stock holdings at Fiserv underwent considerable changes. His holdings dramatically increased, rising from $35.94 million in September 2019 to an astonishing $619.84 million by September 2024, showcasing the success and growth of Fiserv under his leadership. These fluctuations highlight how intertwined his wealth was with the company’s performance. In March 2021, his wealth peaked when he held $49.42 million in Fiserv shares. His trading activity indicated strong confidence in the company's direction, as he regularly bought and sold significant amounts of stock, especially from late 2019 to mid-2023, indicating his optimistic view of Fiserv’s growth trajectory.