Ownership Submission
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 *
TUOMI FREDERICK C
   2. Issuer Name and Ticker or Trading Symbol
EQUITY RESIDENTIAL [EQR] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Executive Vice President
(Last)
(First)
(Middle)
TWO NORTH RIVERSIDE PLAZA, SUITE 400		 3. Date of Earliest Transaction (Month/Day/Year)
02/05/2010
(Street)

CHICAGO, IL 60606		 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
Common Shares Of Beneficial Interest 02/05/2010   F   664 (1) D $ 32.97 52,005 (2) D  
Common Shares Of Beneficial Interest 02/08/2010   F   4,335 (1) D $ 32.44 47,670 (2) D  
Common Shares Of Beneficial Interest               2,198.9879 (3) I 401(k) Plan
Common Shares Of Beneficial Interest               116,562.859 (4) I SERP Account

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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
Non-qualified Stock Option (Right to Buy) $ 32.97 02/05/2010   A   80,119     (5) 02/05/2020 Common Shares Of Beneficial Interest 80,119 $ 0 80,119 D  
LTIP Units $ 0 (6) 02/05/2010   A   15,017     (7) 02/05/2020 Operating Partnership Units 15,017 $ 0.5 15,017 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
TUOMI FREDERICK C
TWO NORTH RIVERSIDE PLAZA, SUITE 400
CHICAGO, IL 60606		       Executive Vice President  

Signatures

 s/ By: Yasmina Duwe, Attorney-in-fact   02/09/2010
**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) Represents the withholding of shares for the payment of tax liability incurred upon the vesting of restricted shares.
(2) Direct total includes restricted shares of the Company scheduled to vest in the future.
(3) Represents shares acquired through profit sharing contributions and dividend reinvestment activity in the reporting person's account with the Equity Residential Advantage 401(k) Retirement Savings Plan, a plan qualified under Section 401(k) of the Internal Revenue Code of 1986, as amended. Such shares represent acquisitions through January 8, 2010.
(4) Represents shares owned by Principal Trust Company, as Trustee of the Equity Residential Supplemental Executive Retirement Plan, for the benefit of the reporting person.
(5) Represents share options scheduled to vest in approximately three equal installments on February 5, 2011, February 5, 2012 and February 5, 2013.
(6) On February 5, 2010, the reporting person received a grant of restricted limited partnership interests ("LTIP Units") in ERP Operating Limited Partnership (the "Operating Partnership"), the operating partnership of Equity Residential (the "Company"), in lieu of restricted shares as part of the annual grant of long-term compensation. The reporting person made a payment to the Operating Partnership of $0.50 for each LTIP Unit awarded. The LTIP Units are a class of units of the Operating Partnership that, conditioned upon minimum allocations to the capital accounts of the LTIP Units for federal income tax purposes, are convertible by the holder into an equivalent number of OP Units of the Operating Partnership, which, subject to vesting, are redeemable by the holder for common shares of the Company on a one-for-one basis or the cash value of such shares, at the Company's option.
(7) The LTIP Units are scheduled to vest on February 5, 2013.

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