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 * HELFAND DAVID   2. Issuer Name and Ticker or Trading Symbol Equity Commonwealth [EQC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) __X__ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) President & CEO (Last) (First) (Middle) C/O EQUITY COMMONWEALTH, TWO NORTH RIVERSIDE PLAZA, SUITE 2100 3. Date of Earliest Transaction (Month/Day/Year) 10/28/2018 (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 10/28/2018   M   57,158 (1) A (1) 595,997 D   Common Shares of Beneficial Interest 10/28/2018   F   59,857 (2) D $ 29.86 536,140 D   Common Shares of Beneficial Interest               290 I See footnote (3)

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

Restricted Share Units

(4)

10/28/2018

M

57,158

(5)

(5)

Common Stock

57,158

(4)

42,884

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
HELFAND DAVID C/O EQUITY COMMONWEALTH TWO NORTH RIVERSIDE PLAZA, SUITE 2100 CHICAGO, IL 60606	X		President & CEO

Signatures

/s/ Orrin S. Shifrin, attorney-in-fact		10/30/2018
**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)	Each Common Share of Beneficial Interest of Equity Commonwealth was received in exchange for one Restricted Share Unit ("RSU"), subject to the terms and conditions set forth in the Equity Commonwealth 2012 Equity Compensation Plan and the restricted share unit agreement for the Reporting Person.
(2)	Reflects common shares surrendered to the Issuer to satisfy tax withholding obligations in connection with the vesting of restricted common shares and RSUs.
(3)	These shares are held by EGI-CW Holdings, L.L.C. ("EGI-CW"). The reporting person is a member of EGI-Fund (14-16) Investors, L.L.C. ("EGI-Fund (14-16)"), which is a member of EGI-CW. The shares reported represent only the number of shares in which the reporting person has a pecuniary interest in accordance with his proportionate interest in EGI-Fund (14-16).
(4)	Each RSU represents the right to receive one share of Common Shares of Beneficial Interest of Equity Commonwealth, subject to the terms and conditions set forth in the Equity Commonwealth 2012 Equity Compensation Plan and the restricted share unit agreement for the Reporting Person.
(5)	On November 8, 2017, the Reporting Person received 114,317 RSUs as a result of certain performance criteria being met with respect to previously granted RSUs, vesting in two equal installments on November 8, 2017 and October 28, 2018, subject to the Reporting Person's continued employment with Equity Commonwealth through such date.

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