3M CO — Director's Dealing 2010

Jul 30, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2010-07-28

Reporting Person: PALENSKY FRED J (EXEC VP R&D & CHF TECH OFF)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-07-28	Common Stock	S	300	$86.777	Disposed	50282	Direct
2010-07-28	Common Stock	S	2200	$86.78	Disposed	48082	Direct
2010-07-28	Common Stock	S	300	$86.79	Disposed	47782	Direct
2010-07-28	Common Stock	S	100	$86.795	Disposed	47682	Direct
2010-07-28	Common Stock	S	300	$86.80	Disposed	47382	Direct
2010-07-28	Common Stock	S	300	$86.805	Disposed	47082	Direct
2010-07-28	Common Stock	S	2400	$86.81	Disposed	44682	Direct
2010-07-28	Common Stock	S	600	$86.815	Disposed	44082	Direct
2010-07-28	Common Stock	S	2000	$86.82	Disposed	42082	Direct
2010-07-28	Common Stock	S	100	$86.821	Disposed	41982	Direct
2010-07-28	Common Stock	S	1132	$86.83	Disposed	40850	Direct
2010-07-28	Common Stock	S	100	$86.84	Disposed	40750	Direct
2010-07-28	Common Stock	S	100	$86.856	Disposed	40650	Direct
2010-07-28	Common Stock	S	200	$86.865	Disposed	40450	Direct
2010-07-28	Common Stock	S	100	$86.87	Disposed	40350	Direct
2010-07-28	Common Stock	S	700	$86.88	Disposed	39650	Direct
2010-07-28	Common Stock	S	100	$86.885	Disposed	39550	Direct