SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* BAYER RICHARD A (Last) (First) (Middle) THE MACERICH COMPANY 401 WILSHIRE BOULEVARD #700 (Street) SANTA MONICA CA 90401 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol MACERICH CO [ MAC ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner X Officer (give title below) Other (specify below) Senior EVP, CLO & Secretary
	3. Date of Earliest Transaction (Month/Day/Year) 04/13/2010
	4. If Amendment, Date of 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

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
COMMON STOCK	04/13/2010		G		2,500	D	$0	106,196	I	By Living Trust
COMMON STOCK	05/25/2010		C		33,585	A	(1)	140,179(2)(3)	I	By Living Trust

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 Securities Underlying Derivative Security (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: 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
Units	(1)	05/25/2010		C(1)			33,585	05/25/2010	(1)	Common Stock	33,585	$0	3,018(4)	D

Explanation of Responses:

1. The reporting person redeemed 33,585 units of limited partnership interest ("Units") of The Macerich Partnership, L.P., of which the issuer is the general partner. Of the 33,585 units, 8,174 units were previously vested serviced-based LTIP Units and 25,411 units were previously vested performance-based LTIP Units of The Macerich Partnership, L.P. Units are redeemable for an equal number of shares of the issuer's Common Stock or, at the election of the issuer, cash equal to the fair market value of such shares. The issuer elected to redeem the reporting person's Units with Common Stock. Units have no expiration date.

2. Includes 398 shares acquired as part of the Company's quarterly dividend paid on March 22, 2010.

3. 3,446 shares are also held indirectly by the reporting person through the Company's 401(k) Plan.

4. The reporting person also holds 4,087 service-based LTIP Units and 31,104 performance-based LTIP Units of The Macerich Partnership, L.P.

	Madonna R. Shannon for RICHARD A. BAYER	05/27/2010
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
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