Because he’s done such a fabulous job running the company, reflected by a stock price that has gone absolutely nowhere since he has been CEO.
“ Fiserv president and CEO Frank Bisignano had total compensation of $20.4 million in 2021, up from $12.2 million in 2020”
https://www.bizjournals.com/milwaukee/news/2022/04/06/fiserv-executive-compensation-2021-bisignano.html