SIMON PROPERTY GROUP INC /DE/ — Director's Dealing 2010

May 12, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SIMON PROPERTY GROUP INC /DE/ (SPG)
CIK: 0001063761
Period of Report: 2010-05-11

Reporting Person: MAUTNER HANS C (President- International Div.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-11	Common Stock	M	83333	$25.54	Acquired	551243	Direct
2010-05-11	Common Stock	S	75000	$91.00	Disposed	476243	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-05-11	Employee Stock Option	$25.54	M	33333	Disposed	2011-03-26	Common Stock (33333)	Direct
2010-05-11	Employee Stock Option	$25.54	M	25000	Disposed	2011-03-26	Common Stock (25000)	Direct
2010-05-11	Employee Stock Option	$25.54	M	25000	Disposed	2011-03-26	Common Stock (25000)	Direct

Footnotes

F1: Includes 3,938 common shares received on 6/19/09 as dividends, 3,297 common shares received on 9/18/09 as dividends and 2,923 common shares received on 12/18/09 as dividends. The Company's quarterly dividends were paid in a combination of cash and shares of common stock.

F2: Right to buy

F3: Price of the non-derivative securities is based on a weighted average price. The stock sale prices range from 90.70 to 91.56.