State Street To Acquire Investor Services Business Of Brown … "State Street is the ideal partner - a firm that shares our core values of unmatched client service, integrity, trust, and a long-term commitment to sustainability." Upon the closing of the transaction, BBHIS employees will move to State Street. 07/09/2021 - 2:35pm State Street Corporation and Brown Brothers Harriman & Co. (BBH) have announced that they have entered into a definitive agreement for State Street to … State Street to buy Brown Brothers Harriman's unit for $3.5 billion State Street has entered into a definitive agreement to buy investor services business of Brown Brothers Harriman & Co. (BBH) in a cash deal valued at $3.5bn. State Street to buy Brown Brothers Harriman's unit for $3.5 bln State Street acquires BBH Investor Services for $3.5bn | Citywire