<SEC-DOCUMENT>0001013536-17-000011-index.html : 20170210
<SEC-HEADER>0001013536-17-000011.hdr.sgml : 20170210
<ACCEPTANCE-DATETIME>20170210093900
ACCESSION NUMBER:		0001013536-17-000011
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20170210
DATE AS OF CHANGE:		20170210

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ROWAN COMPANIES PLC
		CENTRAL INDEX KEY:			0000085408
		STANDARD INDUSTRIAL CLASSIFICATION:	DRILLING OIL & GAS WELLS [1381]
		IRS NUMBER:				981023315
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-30728
		FILM NUMBER:		17589999

	BUSINESS ADDRESS:	
		STREET 1:		MITRE HOUSE 160
		STREET 2:		ALDERSGATE STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC1A 4DD
		BUSINESS PHONE:		7139607640

	MAIL ADDRESS:	
		STREET 1:		MITRE HOUSE 160
		STREET 2:		ALDERSGATE STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC1A 4DD

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ROWAN COMPANIES INC
		DATE OF NAME CHANGE:	19920703

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ROWAN DRILLING CO INC
		DATE OF NAME CHANGE:	19711110

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ROWAN DRILLING CO
		DATE OF NAME CHANGE:	19671112

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AJO, LP
		CENTRAL INDEX KEY:			0001013536
		IRS NUMBER:				232312104
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		230 S BROAD STREET
		STREET 2:		20THFL
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19102
		BUSINESS PHONE:		2155467500

	MAIL ADDRESS:	
		STREET 1:		230 S BROAD STREET
		STREET 2:		20TH FLOOR
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19102

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ARONSON & JOHNSON & ORTIZ, LP
		DATE OF NAME CHANGE:	20050307

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ARONSON & PARTNERS/PA
		DATE OF NAME CHANGE:	19990402
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>ajordc.txt
<TEXT>
Document 1 - file: ajordc.txt

</DOCUMENT>
</SEC-DOCUMENT>