You can find original article here WealthManagement. Subscribe to our free daily WealthManagement newsletters. (Bloomberg) -- Morgan Stanley agreed to buy a trading platform for shares in private companies, the latest move by Wall Street to expand offerings for fast-growing startups.   The deal for EquityZen will make it easier for clients of Morgan Stanley’s wealth business to invest in private firms or, with the company’s approval, offload the shares they’re awarded as part of their equity compens ...