Canada Pension Plan Investment Board acquired a 4.4% stake in Advanced Drainage Systems, Inc. (NYSE:WMS) from Joseph A. Chlapaty for $350 million on August 19, 2021. Canada Pension Plan Investment Board acquired 3.1 million shares of Advanced Drainage Systems from a trust controlled by Advanced Drainage Systems' Chairman Emeritus, Joseph A. Chlapaty. Kevin M. Schmidt of Debevoise & Plimpton LLP acted as legal advisor to Canada Pension Plan Investment Board. Matthew S. Bailey of Squire Patton Boggs (US) LLP and Harold Birnbaum of Davis Polk & Wardwell LLP acted as legal advisor to Advanced Drainage Systems. Canada Pension Plan Investment Board completed the acquisition of a 4.4% stake in Advanced Drainage Systems, Inc. (NYSE:WMS) from Joseph A. Chlapaty on August 19, 2021.