← Latest Filings
B
Ball M Leroy
CEO
Open-market buys
0
$0 total
Open-market sells
9
$1.1M total
Tracking since
Mar 2026
Activity timeline
Open-market sale — $184K
Koppers Holdings Inc. · Aug 31, 2026
Open-market sale — $138K
Koppers Holdings Inc. · Aug 19, 2026
Open-market trades from the last two years.
Holdings as last reported
429,355.4 Common Stock in KOP
Held directly · as of 2026-08-31
34,737 Common Stock, par value $0.10 per share in ATI
Held directly · as of 2026-05-19
Companies touched
Koppers Holdings Inc.
CIK 0001315257
ATI INC
CIK 0001018963
