Perhaps the money will be used by Harvard to buy a security he holds or has options on washing his hands clean of SEC oversight.
Then he executes on the predictable market move, makes the money back and writes down the donation for taxes. Meanwhile, Harvard is still holding whatever long term position they opened so they too are happy.
Their cover story is some rather cheap commemorative plaque they put on a wall "thanking" him.
I'm not saying this IS what happened but the facts are a hedge fund guy "donating" lots of money to a tax deductible nonprofit that has a giant investment portfolio with rather lax regulatory oversight.
Also if I was working for Harvard, I'd absolutely think of offering services like this to court donations.