Warburg Pincus Private Equity Ix, L.P., Ten Percent Owner at Builders Firstsource, holds 4.15M shares in Laredo Petroleum (Ticker: LPI), holds 13.26M shares in Builders Firstsource (Ticker: BLDR), holds 0.00 shares in ARAMARK Holdings (Ticker: ARMK). Most recently, Warburg Pincus Private Equity Ix, L.P. Sold ― shares of Laredo Petroleum on Nov 20, 2020 for an estimated value of 5.60M.