Waste Industries Announces New Ownership Structure RALEIGH, N. Car., August 18, 2017-- Waste Industries announced today that it has executed a binding Stock Purchase Agreement with a newly-formed investor group, including the Poole family and members of senior management, and funds controlled by HPS Investment Partners, LLC ("HPS") and Equity Group Investments ("EGI"), who will acquire 100% of the stock of the company, replacing Macquarie Infrastructure Partners ("MIP") as the primary shareholder. MIP has been a shareholder of Waste Industries since 2008.