X0306 4 2013-04-26 0 0000085408 ROWAN COMPANIES PLC RDC 0001183348 MOYNIHAN COLIN B 2800 POST OAK BLVD SUITE 5450 HOUSTON TX 77056 1 0 0 0 Restricted Share Units 2013-04-26 4 A 0 6281 0.00 A Class A Ordinary Shares 6281 37251 D Each restricted share unit represents a contingent right to receive one Class A Ordinary Share of Rowan Companies plc. The restricted share units vest on the earlier of April 26, 2014 or the date of the next annual meeting of shareholders. Settlement of the restricted share units (including dividends) occurs upon termination of the reporting person's service on the Board of Directors. At the election of the Compensation Committee, such settlement may be made in cash, shares or a combination. /s/ Melanie M. Trent, attorney-in-fact 2013-04-30