Ackman had a good year in 2019, so the greedy bastard loaded with cash and is wanting for businesses to go bankrupt so that he can buy them for dime on a dollar.
Looks like your people are full of shit. PSH is down -6% for the year. And that's his levered fund, the non levered one is down less https://pershingsquareholdings.com/company-reports/weekly-navs/