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KOP
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Koppers Holdings Inc.

KOP · Basic Materials · Koppers Holdings Inc. provides treated wood products, wood preservation chemicals, and carbon compounds in the United States, Australasia,…

Koppers Holdings Inc. (KOP), in the Basic Materials sector, has 9 disclosed filings on Paydirt over the trailing twelve months from 3 corporate insiders: 0 purchases and 9 sales. Filers took a median of 1 day from execution to disclosure, and the most recent trade was executed Aug 31 and filed Sep 1. The most active filer was M Leroy Ball with 9 filings.

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Filings, ttm
9
0 buys · 9 sells
Traders, ttm
3
3 insiders
Volume, ttmiDollar value disclosed in the window
$5.4M
estimated for Congress, as filed for insiders
Median delay
1d
execution to disclosure
Last traded
Aug 31
Filed Sep 1
ADViAverage daily dollar volume
$8.5M
market data
Share price · 12M
$47.78 (+66.9%)
$52.23$39.17$26.11Sep 22 2025Mar 16Sep 4

Adjusted for splits and dividends.

Volume by month
$4.6M$2.3M$0Oct 2024Apr 2025Oct 2025Apr 2026Nov 2024 · sells $1.1MMar 2026 · sells $139KMay 2026 · sells $113KJun 2026 · sells $321KAug 2026 · sells $4.6MSep 2026 · sells $184K
Buys $0 Sells $6.5M

Estimated for Congress, as filed for insiders · by filing month · past 24 months

Who filed
MB M Leroy Ball CEO 9 filings BP Bradley A Pearce Chief Accounting Officer 2 filings JS James A. Sullivan President and CTO 2 filings ST Stephen R Tritch Director 1 filing
Recent filings
M Leroy BallSALE CEO $184K
4,000 sh × $45.96
Exec Aug 31
Filed Sep 1 · 4:23 PM ET
M Leroy BallSALE CEO $138K
3,000 sh × $45.84
Exec Aug 19
Filed Aug 20 · 4:08 PM ET
James A. SullivanSALE President and CTO $375K
7,500 sh × $50.00
Exec Aug 11
Filed Aug 12 · 6:29 PM ET
Bradley A PearceSALE CAO $102K
2,000 sh × $51.01
Exec Aug 10
Filed Aug 11 · 4:25 PM ET
James A. SullivanSALE President and CTO $4.0M
79,900 sh × $50.01
Exec Aug 7
Filed Aug 11 · 4:21 PM ET
M Leroy BallSALE CEO $150K
3,412 sh × $43.90
Exec Jun 18
Filed Jun 23 · 5:30 PM ET
M Leroy BallSALE CEO $171K
4,141 sh × $41.34
Exec Jun 11
Filed Jun 15 · 5:30 PM ET
M Leroy BallSALE CEO $113K
2,659 sh × $42.55
Exec May 13
Filed May 14 · 5:30 PM ET
M Leroy BallSALE CEO $139K
3,763 sh × $37.02
Exec Mar 2
Filed Mar 4 · 5:30 PM ET
M Leroy BallSALE CEO $223K
5,973 sh × $37.26
Exec Nov 19 2024
Filed Nov 20 2024 · 5:30 PM ET
Stephen R TritchSALE Director $131K
3,533 sh × $37.08
Exec Nov 19 2024
Filed Nov 20 2024 · 5:30 PM ET
M Leroy BallSALE CEO $346K
9,303 sh across 2 lots
Exec Nov 14 2024
Filed Nov 18 2024 · 5:30 PM ET
M Leroy BallSALE CEO $308K
8,147 sh across 2 lots
Exec Nov 12 2024
Filed Nov 14 2024 · 5:30 PM ET
Bradley A PearceSALE Chief Accounting Officer $112K
3,000 sh × $37.19
Exec Nov 12 2024
Filed Nov 13 2024 · 5:30 PM ET