Transfers anonymous buyer pays $40.6M for stake in Flatiron building where Rockrose has bought stakes March 20, 2020 8:31 am An anonymous buyer either in competition with Rockrose Development or representing it, acquired 16 pTo read an article sign up for a 7-day free trial to a Post subscription, just $10 per month. To access data including daily updated NYC condo files see our Basic or Premium options. If you are a subscriber log in to read the rest of this content. Continue Reading Previous Davis Companies pays $26M to Garfinkel family for property in ChelseaNext Jonathan Rose Companies pays $94M to Starrett Corp. for Tower West in the Upper West Side