X0206 3 2015-06-24 0 0000777491 CH2M HILL COMPANIES LTD NONE 0001566491 Apollo Principal Holdings III GP Ltd C/O INTERTRUST CORPORATE SERVICES (CAYMAN) LIMITED, 190 ELGIN STREET GEORGE TOWN E9 KY1-9005 CAYMAN ISLANDS 0 0 1 0 0001648671 APH Holdings, L.P. ONE MANHATTANVILLE ROAD, SUITE 201 PURCHASE NY 10577 0 0 1 0 0001600223 Apollo Capital Management VIII, LLC ONE MANHATTANVILLE ROAD, SUITE 201 PURCHASE NY 10577 0 0 1 0 0001600221 Apollo Advisors VIII, L.P. ONE MANHATTANVILLE ROAD, SUITE 201 PURCHASE NY 10577 0 0 1 0 0001648674 AP VIII CH2 Holdings, L.P. ONE MANHATTANVILLE ROAD, SUITE 201 PURCHASE NY 10577 0 0 1 0 Series A preferred stock, par value $0.01 62.22 2015-06-24 Common stock, par value $0.01 3214400 I See footnote Series A preferred stock, par value $0.01 62.22 2016-06-24 Common stock, par value $0.01 1607200 I See footnote See Exhibit 99.1. See Exhibit 99.1 See signatures attached as Exhibit 99.2 2015-07-23