3M CO — Director's Dealing 2010

Feb 16, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2010-02-12

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-02-12	Common Stock	M	879	$75.20	Acquired	15903	Direct
2010-02-12	Common Stock	S	879	$79.14	Disposed	15024	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-02-12	Non-qualified Stock Option (Right to Buy)	$75.20	M	879	Disposed	2010-05-07	Common Stock (879)	Direct

Footnotes

F1: Shares were sold pursuant to a 10b5-1 trading plan dated February 11, 2010.