https://seekingalpha.com/news/4467405-unitedhealth-q4-earnings-beat-driven-stealth-sales
"The transactions, which involved companies such as private equity firms Warburg Pincus and KKR (KKR), included deals that required the managed care giant to buy back the divestments at a higher price after several years, the people noted.
Amid UnitedHealth’s (NYSE:UNH) insistence that those deals should be completed by Dec. 31 and shouldn’t be publicized even after they are closed, those conditions implied to people familiar with the transactions that the company is leveraging the sales to meet its earnings targets."