3M CO — Director's Dealing 2007

Mar 14, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2007-03-12

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-03-12	Common Stock	F	22	$74.945	Disposed	194550	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	228	Indirect

Footnotes

F1: Distribution of shares as a result of vesting of a portion of the restricted stock units (including shares withheld for taxes).

F2: The directly-held common stock holding reported in Table I includes dividend units accrued quarterly on restricted stock units.