3M CO — Director's Dealing 2013

Feb 20, 2013

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2013-02-19

Reporting Person: Gangestad Nicholas C (VP CORP CNTRLR & CF ACCTG OFC)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2013-02-19	Common Stock	M	7005	$84.40	Acquired	11403	Direct
2013-02-19	Common Stock	F	6193	$104.195	Disposed	5210	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2013-02-19	Non-qualified Stock Option (Right to Buy)	$84.40	M	7005	Disposed	2014-05-09	Common Stock (7005)	Direct

Footnotes

F1: This Form is being filed to report the exercise of a 3M stock option by means of a cashless-sell-to-cover method (selling enough shares to cover option share purchase price, fee and taxes).