Sec Form 4 Filing - PAPA CHRISTOPHER J @ LIBERTY PROPERTY TRUST - 2017-03-16

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 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 PAPA CHRISTOPHER J 2. Issuer Name and Ticker or Trading Symbol LIBERTY PROPERTY TRUST [ LRY] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Exec. Vice President and CFO (Last) (First) (Middle) C/O LIBERTY PROPERTY TRUST, 500 CHESTERFIELD PARKWAY 3. Date of Earliest Transaction (MM/DD/YY) 03/16/2017 (Street) MALVERN, PA19355 4. If Amendment, Date Original Filed (MM/DD/YY) 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 (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 ($0.001 par value) 03/16/2017 A 1,569 ( 1 ) A $ 38.25 24,540 D Common Shares of Beneficial Interest ($0.001 par value) 03/16/2017 F 503 ( 2 ) D $ 38.25 24,037 D

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other PAPA CHRISTOPHER J C/O LIBERTY PROPERTY TRUST 500 CHESTERFIELD PARKWAY MALVERN, PA19355 Exec. Vice President and CFO Signatures Christopher J. Papa by Herman C. Fala as Attorney-in-Fact 03/20/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The stock acquired reflects the election by the reporting person to receive common shares in lieu of cash for all or part of annual performance bonus compensation for 2016, consistent with a policy adopted by the Trust's Compensation Committee with respect to employee annual performance bonus compensation. By making such election, the reporting person received shares equal to 120% of the cash value of such bonus or portion thereof, less applicable withholding tax (the "Bonus Value"). The reporting person received the number of common shares able to be purchased with the dollar amount of the Bonus Value based on the closing price per share of the common shares on March 16, 2017 ($38.25). ( 2 )Consists of shares withheld in payment of income taxes with respect to the common shares received in lieu of cash for all or part of annual performance bonus compensation for 2016.

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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