3M CO — Director's Dealing 2010

Jun 14, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2010-06-11

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-06-11	Common Stock	M	58	$78.30	Acquired	43226	Direct
2010-06-11	Common Stock	F	25	$78.30	Disposed	43201	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-06-11	Restricted Stock Units	$	M	58	Disposed		Common Stock (58)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	600	Indirect

Footnotes

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

F2: The terms of the initial award (50,000 restricted stock units) provided for vesting in five equal annual installments on the anniversary of the grant date, 12/6/2005.

F3: Distribution of shares as a result of vesting of a portion of the restricted stock units (25 shares withheld for taxes).

F4: Includes shares acquired during the fiscal year pursuant to the 3M Voluntary Investment Plan.