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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1. Name and Address of Reporting Person * Smart Justin William   2. Issuer Name and Ticker or Trading Symbol KILROY REALTY CORP [NYSE: KRC] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) See Remarks (Last) (First) (Middle) C/O KILROY REALTY CORPORATION, 12200 W. OLYMPIC BLVD., SUITE 200 3. Date of Earliest Transaction (Month/Day/Year) 07/20/2017 (Street) LOS ANGELES, CA 90064 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 stock, par value $0.01 per share 07/20/2017   M   13,781 A $ 0 97,232.3996 D   Common stock, par value $0.01 per share 07/20/2017   M   3,813 A $ 0 101,045.3996 D   Common stock, par value $0.01 per share (1) 07/20/2017   F   8,769 D $ 73.5 92,276.3996 D

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 Stock Units

(2)

07/20/2017

M

13,781.3111

(3)

(3)

Common Stock

13,781.3111

$ 0

40,266.8914

D

Restricted Stock Units

(2)

07/20/2017

M

3,813.0737

(4)

(4)

Common Stock

3,813.0737

$ 0

36,453.8177

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Smart Justin William C/O KILROY REALTY CORPORATION 12200 W. OLYMPIC BLVD., SUITE 200 LOS ANGELES, CA 90064			See Remarks

Signatures

/s/ Tyler H. Rose, as attorney-in-fact for Justin William Smart		07/20/2017
**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)	Common stock tendered to pay tax withholding.
(2)	Each restricted stock unit represents a contingent right to receive one share of Issuer common stock and may be settled in cash under certain circumstances.
(3)	The reporting person was awarded performance units in 2014 covering a three-year performance period ending December 31, 2016. The total number of units subject to the award that actually vested were paid in an equivalent number of shares of Issuer common stock with the fractional share amount settled in cash.
(4)	The restricted stock units vest over a four-year period starting on January 5, 2015, subject to continued employment with the Issuer on the applicable vesting date. Fractional share amount settled in cash.
Remarks: Executive Vice President, Development and Construction Services

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