Joseph P Dowd

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
19 Aug 24	KOP Koppers	Common Stock	Sell	Dispose S	No	No	37.72	5,516	208.06 k	10,300
17 May 24	KOP Koppers	Common Stock	Sell	Dispose S	No	No	45.21	100	4.52 k	15,792
17 May 24	KOP Koppers	Common Stock	Sell	Dispose S	No	No	44.45	5,900	262.26 k	15,892
6 Mar 24	KOP Koppers	Common Stock	Sell	Dispose S	No	No	52.32	1,300	68.02 k	21,772
5 Mar 24	KOP Koppers	Common Stock	Sell	Dispose S	No	No	54.02	896	48.40 k	23,072
5 Mar 24	KOP Koppers	Common Stock	Sell	Dispose S	No	No	53.47	13,001	695.16 k	23,968
4 Mar 24	KOP Koppers	Common Stock	Sell	Dispose S	No	No	53.57	1,716	91.93 k	36,969
4 Mar 24	KOP Koppers	Common Stock	Option exercise	Acquire M	No	No	26.63	1,716	45.70 k	38,685
4 Mar 24	KOP Koppers	Common Stock	Sell	Dispose S	No	No	53.56	816	43.70 k	36,969
4 Mar 24	KOP Koppers	Common Stock	Option exercise	Acquire M	No	No	41.6	816	33.95 k	37,785

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.