X0306 4 2019-11-12 0 0001315257 Koppers Holdings Inc. KOP 0001349566 Lacy Steven R 436 SEVENTH AVENUE PITTSBURGH PA 15219 0 1 0 0 Chief Admin. Officer, GC & Sec Common Stock 2019-11-12 4 M 0 7078 28.10 A 39600.3275 D Common Stock 2019-11-12 4 S 0 5615 42.71 D 34457.3275 D Employee Stock Options (Rights to Buy) 28.10 2019-11-12 4 M 0 7078 0.00 A 2013-02-22 2020-02-21 Common Stock 7078 0 D The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $42.56 to $42.82, inclusive. The reporting person undertakes to provide to the Securities and Exchange Commission, the issuer or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price. Includes 472 shares of Koppers Holdings Inc. common stock acquired pursuant to the Koppers Holdings Inc. Employee Stock Purchase Plan ("ESPP"). These acquisitions were exempt under both Rule 16b-3(c) and Rule 16b-3(d). Stock Options exercisable upon reporting person's completion of a consecutive three (3) year period of service measured from the vesting commencement date of February 22, 2010. Steven R. Lacy 2019-11-14