Shares of real estate technology company Compass (NYSE:COMP) fell 10.5% in the morning session after the company announced an agreement to merge with Anywhere Real Estate in an all-stock transaction.

SoftBank Vision Fund, Compass’ largest investor, sold more than $74.5 million worth of the real estate brokerage’s stock. The sale of 16.9 million shares last week accounted for 18 percent of its ...