W.W. GRAINGER, INC. — Director's Dealing 2013

May 9, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: GRAINGER W W INC (GWW)
CIK: 0000277135
Period of Report: 2013-05-08

Reporting Person: Brown Laura D (Sr. VP, Comm. & Inv. Rel.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-05-08	Common Stock	M	2700	$85.82	Acquired	13553	Direct
2013-05-08	Common Stock	S	932	$252.1117	Disposed	12621	Direct
2013-05-08	Common Stock	S	91	$252.12	Disposed	12530	Direct
2013-05-08	Common Stock	S	100	$252.13	Disposed	12430	Direct
2013-05-08	Common Stock	S	100	$252.14	Disposed	12330	Direct
2013-05-08	Common Stock	S	9	$252.16	Disposed	12321	Direct
2013-05-08	Common Stock	S	100	$252.17	Disposed	12221	Direct
2013-05-08	Common Stock	S	207	$252.18	Disposed	12014	Direct
2013-05-08	Common Stock	S	227	$252.19	Disposed	11787	Direct
2013-05-08	Common Stock	S	107	$252.20	Disposed	11680	Direct
2013-05-08	Common Stock	S	84	$252.21	Disposed	11596	Direct
2013-05-08	Common Stock	S	300	$252.22	Disposed	11296	Direct
2013-05-08	Common Stock	S	139	$252.23	Disposed	11157	Direct
2013-05-08	Common Stock	S	100	$252.24	Disposed	11057	Direct
2013-05-08	Common Stock	S	4	$252.25	Disposed	11053	Direct
2013-05-08	Common Stock	S	100	$252.33	Disposed	10953	Direct
2013-05-08	Common Stock	S	100	$252.38	Disposed	10853	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-05-08	Stock Option	$85.82	M	2700	Disposed	2018-04-29	Common Stock (2700)	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Stock Option	$81.49	2019-04-28	Common Stock (5000)	5000	Direct
Stock Option	$108.15	2020-04-27	Common Stock (4300)	4300	Direct
Stock Option	$149.02	2021-04-26	Common Stock (6789)	6789	Direct
Stock Option	$204.01	2022-04-24	Common Stock (5208)	5208	Direct
Stock Option	$245.86	2023-04-23	Common Stock (4197)	4197	Direct