Form 4 for KOP Koppers Holdings Inc.

Accepted 2026-03-04 00:00:00 ET · period of report 2026-03-02 · accession 0001229771-26-000006 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
M	2026-03-04	2026-03-02	KOP	BALL M LEROY	CEO, Dir	S - Sale	$36.87	-6,275	454.0K	-1%	-$231.4K
	2026-03-04	2026-03-02	KOP	BALL M LEROY	CEO, Dir	G - Gift	$0.00	-325	449.9K	-0.1%	$0

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-03-02	S	D	2,184	$36.53	454,364.40	D	—	—	(F1) The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $36.22 to $37.16, 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.
2	Common	Common Stock	2026-03-02	G	D	325	$0.00	449,948.40	D	—	—
3	Common	Common Stock	2026-03-02	S	D	3,763	$37.02	450,273.40	D	—	—
4	Common	Common Stock	2026-03-02	S	D	328	$37.45	454,036.40	D	—	—	(F2) The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $37.42 to $37.51, 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.