The residents of 740 Park make a respectable showing on this year’s new Forbes 400. New neighbor David Koch clocks in at #9, Steve Schwarzman at #40, Ronald Lauder at #108 and Israel Englander at #317. Ex-residents on the list include #28 Ronald O. Perelman, #57 Henry Kravis, Edgar Bronfman Sr. tied with Lauder at #108, and David Rockefeller at #149. Leonard Blavatnick would have been the third richest tenant of 740 (#45) had he not been spurned by the building’s co-op board, which recruited Koch to buy an apartment Blavatnick was eyeing. Don’t cry for him, though. He bought a $27 million Fifth Avenue apartment, instead.