M. Leroy Ball - 02 Mar 2026 Form 4 Insider Report for Koppers Holdings Inc. (KOP)

Signature
/s/ Stephanie L. Apostolou, Attorney in Fact
Issuer symbol
KOP
Transactions as of
02 Mar 2026
Net transactions value
-$231,371
Form type
4
Filing time
04 Mar 2026, 16:22:38 UTC
Previous filing
02 Mar 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
BALL M LEROY CEO, Director 436 SEVENTH AVENUE, PITTSBURGH /s/ Stephanie L. Apostolou, Attorney in Fact 04 Mar 2026 0001229771

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction KOP Common Stock Sale $79,782 -2,184 -0.48% $36.53 454,364 02 Mar 2026 Direct F1
transaction KOP Common Stock Sale $12,284 -328 -0.07% $37.45 454,036 02 Mar 2026 Direct F2
transaction KOP Common Stock Sale $139,306 -3,763 -0.83% $37.02 450,273 02 Mar 2026 Direct
transaction KOP Common Stock Gift -325 -0.07% $0.000000* 449,948 02 Mar 2026 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
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.
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.