3M CO — Director's Dealing 2016

May 12, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2016-05-11

Reporting Person: THULIN INGE G (Director, Chairman, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-05-11	Common Stock	S	1899	$169.98	Disposed	180337	Direct
2016-05-11	Common Stock	S	190	$169.981	Disposed	180147	Direct
2016-05-11	Common Stock	S	204	$169.99	Disposed	179943	Direct
2016-05-11	Common Stock	S	200	$170.00	Disposed	179743	Direct
2016-05-11	Common Stock	S	100	$170.0075	Disposed	179643	Direct
2016-05-11	Common Stock	S	797	$170.01	Disposed	178846	Direct
2016-05-11	Common Stock	S	100	$170.015	Disposed	178746	Direct
2016-05-11	Common Stock	S	703	$170.02	Disposed	178043	Direct
2016-05-11	Common Stock	S	100	$170.021	Disposed	177943	Direct
2016-05-11	Common Stock	S	300	$170.03	Disposed	177643	Direct
2016-05-11	Common Stock	S	200	$170.035	Disposed	177443	Direct
2016-05-11	Common Stock	S	110	$170.04	Disposed	177333	Direct
2016-05-11	Common Stock	S	150	$170.045	Disposed	177183	Direct
2016-05-11	Common Stock	S	272	$170.05	Disposed	176911	Direct
2016-05-11	Common Stock	S	100	$170.06	Disposed	176811	Direct
2016-05-11	Common Stock	S	500	$170.065	Disposed	176311	Direct
2016-05-11	Common Stock	S	1400	$170.07	Disposed	174911	Direct
2016-05-11	Common Stock	S	1106	$170.08	Disposed	173805	Direct
2016-05-11	Common Stock	S	10400	$170.09	Disposed	163405	Direct
2016-05-11	Common Stock	S	500	$170.095	Disposed	162905	Direct
2016-05-11	Common Stock	S	2592	$170.10	Disposed	160313	Direct
2016-05-11	Common Stock	S	200	$170.105	Disposed	160113	Direct
2016-05-11	Common Stock	S	100	$170.1075	Disposed	160013	Direct
2016-05-11	Common Stock	S	1330	$170.11	Disposed	158683	Direct
2016-05-11	Common Stock	S	1100	$170.115	Disposed	157583	Direct
2016-05-11	Common Stock	S	400	$170.12	Disposed	157183	Direct
2016-05-11	Common Stock	S	100	$170.1207	Disposed	157083	Direct
2016-05-11	Common Stock	S	100	$170.1225	Disposed	156983	Direct
2016-05-11	Common Stock	S	900	$170.125	Disposed	156083	Direct