3M CO — Director's Dealing 2010

Dec 14, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2010-12-13

Reporting Person: BUCKLEY GEORGE W (Director, CHAIRMAN OF THE BOARD & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-12-13	Common Stock	M	67	$84.32	Acquired	125582	Direct
2010-12-13	Common Stock	F	29	$84.32	Disposed	125553	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-12-13	Restricted Stock Units	$0	M	67	Disposed		Common Stock (67)	Direct

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of 3M common stock.

F2: Distribution of shares as a result of accrued dividend units vesting (29 shares withheld for taxes).