KOPPERS HOLDINGS INC

Ticker: KOP CUSIP: 50060P106 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

Note: Option positions (PUT/CALL) are excluded.

Q1 2023

Shares 108 Value ($000) $4 Avg Close $32.48 Range $27.62 - $37.52

Q2 2020

Shares 300 Value ($000) $6 Avg Close $14.72 Range $8.00 - $22.09

Q4 2018

Shares 336 Value ($000) $6 Avg Close $22.79 Range $14.54 - $31.53

Q3 2018

Shares 27 Value ($000) $1 Avg Close $34.72 Range $29.56 - $38.82

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2023	108	$4	$32.48	$27.62 - $37.52
Q2 2020	300	$6	$14.72	$8.00 - $22.09
Q4 2018	336	$6	$22.79	$14.54 - $31.53
Q3 2018	27	$1	$34.72	$29.56 - $38.82