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 * Tronsberg-Deihle Louann E   2. Issuer Name and Ticker or Trading Symbol Koppers Holdings Inc. [KOP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) Treasurer (Last) (First) (Middle) 436 SEVENTH AVENUE 3. Date of Earliest Transaction (Month/Day/Year) 03/03/2017 (Street) PITTSBURGH, PA 15219 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 03/03/2017   F   180.2896 D (1) $ 44.1 13,740.3512 D

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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)

03/03/2017

A

975

(3)

(3)

Common Stock

975

$ 0

975

D

Employee Stock Options (Rights to Buy)

$ 44.1

03/03/2017

A

3,604

(4)

03/02/2027

Common Stock

3,604

$ 0

3,604

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Tronsberg-Deihle Louann E 436 SEVENTH AVENUE PITTSBURGH, PA 15219			Treasurer

Signatures

/s/Steven R. Lacy, Attorney-in-Fact		03/07/2017
**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)	Shares surrendered to the issuer by the reporting person as payment for tax withholding related to the vesting of time-based restricted stock units ("RSUs").
(2)	Each RSU represents a contingent right to receive one share of Koppers Holdings Inc. common stock (the "Common Stock"), or its equivalent cash value.
(3)	The reporting person was granted RSUs on March 3, 2017 under the Koppers Holdings Inc. 2005 Long Term Incentive Plan, as Amended and Restated. RSUs vest in four equal annual installments, with the first installment vesting on March 3, 2018. Upon vesting, the RSUs will be paid out in whole shares of Common Stock or cash as may be determined by the Company.
(4)	The reporting person was granted stock options on March 3, 2017, which will vest in four equal annual installments, with the first installment vesting on March 3, 2018.

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