W.W. GRAINGER, INC. — Director's Dealing 2010

Mar 10, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GRAINGER W W INC (GWW)
CIK: 0000277135
Period of Report: 2010-03-10

Reporting Person: IRVING GREGORY S (Vice President and Controller)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-03-10	Common Stock	M	330	$37.50	Acquired	14381	Direct
2010-03-10	Common Stock	M	3900	$52.29	Acquired	18281	Direct
2010-03-10	Common Stock	S	100	$108.09	Disposed	18181	Direct
2010-03-10	Common Stock	S	1100	$108.093	Disposed	17081	Direct
2010-03-10	Common Stock	S	2230	$108.12	Disposed	14851	Direct
2010-03-10	Common Stock	S	100	$108.1218	Disposed	14751	Direct
2010-03-10	Common Stock	S	400	$108.13	Disposed	14351	Direct
2010-03-10	Common Stock	S	300	$108.14	Disposed	14051	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-03-10	Option	$37.50	M	330	Disposed	2011-04-24	Common Stock (330)	Direct
2010-03-10	Option	$52.29	M	3900	Disposed	2015-04-26	Common Stock (3900)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Option	$83.08	2017-04-24	Common Stock (2700)	2700	Direct
Option	$85.82	2018-04-29	Common Stock (3200)	3200	Direct
Option	$81.49	2019-04-28	Common Stock (7000)	7000	Direct