3M CO — Director's Dealing 2012

Jul 27, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2012-07-26

Reporting Person: SAUER BRAD T (EXEC VP HEALTH CARE)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-07-26	Common Stock	M	1497	$88.65	Acquired	15055	Direct
2012-07-26	Common Stock	S	1497	$92.00	Disposed	13558	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-07-26	Non-qualified Stock Option (Right to Buy)	$88.65	M	1497	Disposed	2013-05-13	Common Stock (1497)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1487	Indirect

Footnotes

F1: Shares were sold pursuant to a Rule 10b5-1 trading plan dated May 8, 2012.

F2: Includes shares acquired during the fiscal year pursuant to the 3M Voluntary Investment Plan.