3M CO — Director's Dealing 2004

Feb 2, 2004

SEC Form 5 — Annual Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2003-12-31

Reporting Person: CAMPBELL PATRICK D (VICE PRESIDENT FINANCE & CEO)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5988	Direct
Common Stock	259	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non-Qualified Stock Option (right to buy)	$55.9750	2012-02-01	Common Stock (48000)	48000	Direct
Non-Qualified Stock Option (right to buy)	$61.8500	2013-05-12	Common Stock (44000)	44000	Direct
Non-Qualified Stock Option (right to buy)	$64.5000	2012-05-14	Common Stock (40000)	40000	Direct

Footnotes

F1: On September 29, 2003, the common stock of 3M Company split
2-for-1.The shares of common stock reported on Table I and all options reported
on Table II have been adjusted to reflect the split.

F2: The indirectly-held common stock holding (401k/PAESOP)
reported in Table I includes shares acquired during the fiscal year pursuant to
the 3M Voluntary Investment Plan. The directly-held common stock holding
reported in Table I includes shares acquired during the fiscal year pursuant to
3M's General Employee Stock Purchase Plan.