 BOSTON--BUSINESS WIRE--BrightSphere Investment Group Inc. NYSE: BSIG today announced that it has entered into a definitive agreement to sell its 75.1 ownership interest in Thompson, Siegel Walmsley LLC TSW to Pendal Group Limited Pendal for 240 million. As part of the transaction, Pendal will additionally acquire the 24.9 ownership interest in TSW held by the TSW management team, resulting in Pendal acquiring 100 of TSW for total consideration of approximately 320 million. In a 