3M CO — Director's Dealing 2004

May 13, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2004-05-11

Reporting Person: REICH CHARLES (EXEC VP HEALTH CARE)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-04-26	Common Stock	G	113	—	Acquired	236	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2004-05-11	Non-Qualified Stock Option (right to buy)	$84.4	A	81621	Acquired	2014-05-09	Common Stock (81621)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	61677	Direct
Common Stock	2254	Indirect
Common Stock	143	Indirect

Footnotes

F1: Gift to daughter; the reporting person disclaims beneficial ownership of all securities held by his daughter, and this report should not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose.

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.