FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person * BLOOM DAVID C   2. Issuer Name and Ticker or Trading Symbol SIMON PROPERTY GROUP INC /DE/ [SPG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) __X__ Other (specify below) Advisory Director (Last) (First) (Middle) 105 EISENHOWER PKWY. 3. Date of Earliest Transaction (Month/Day/Year) 03/26/2008 (Street) ROSELAND, NJ 07068 4. If Amendment, Date Original Filed(Month/Day/Year) 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

6% Convertible Preferred Units in Simon Property Group, L.P.

(1)

03/26/2008

C

372,859

(1)

(3)

Common Stock

296,079

(1) (2)

0

I

Partnership (4)

Common Units in Simon Property Group, L.P.

(5)

03/26/2008

C

296,079

(2)

(3)

Common Stock

296,079

(2)

870,703

I

Partnership (4)

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
BLOOM DAVID C 105 EISENHOWER PKWY. ROSELAND, NJ 07068				Advisory Director

Signatures

David C. Bloom, and his attorney-in-fact, Shelly Doran		03/27/2008
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Reporting person elected to convert 6% Convertible Preferred Units into common units. During the period from January 2, 2008 to March 31, 2008, each 6% Convertible Preferred Unit is convertible into a Common Unit at a rate of 1 Preferred Unit to 0.794079 of a Common Unit.
(2)	Reporting person elected to convert units of limited partnership interest ("Units") of Simon Property Group, L.P., of which the issuer is the general partner. Units may be exchanged for an equal number of shares of common stock or cash, as selected by the issuer.
(3)	None
(4)	As a partner in Woodbury Family Associates, L.P.
(5)	1:1

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