A group led by Chairman/CEO Joseph Neubauer has offered $32 a share to take Aramark Corp. private in a deal valued at $5.77 billion. Besides Neubauer, the group includes private equity firms Thomas H. Lee Partners and Warburg Pincus LLC, as well as GS Capital Partners and J.P. Morgan Partners, the private equity arms of Goldman Sachs Group Inc., and JPMorgan Chase & Co..