Bill Ackman engaged to Brad Pitt’s MIT crush

Billionaire hedge funder Bill Ackman and brilliant MIT professor Neri Oxman are engaged — after we revealed earlier this year that the couple was dating.

Fast Company reported that Ackman mentioned the engagement at the Grant’s investor conference at the Plaza last week. Page Six reported in June that Oxman made a trip to Paris to see her activist investor beau Ackman compete in the Finance Cup tennis tournament. A pal told us at the time that they would not be surprised if Ackman popped the question.

We also reported in April that Oxman was being wooed by Brad Pitt, but sources said they were just friends, and Oxman said in a New York Times profile this month that she did not date Pitt but wants to work on a project with him. (Oxman’s also collaborated with Björk.)

A rep for Ackman confirmed the engagement but did not comment further.

Ackman and Oxman were both previously married.