LM

Leroy M Ball

DELAYED 1 MONTH

Director; Director, CEO

ATI INC
Koppers Holdings Inc.

Filings

3

Companies

2

Latest

May 19, 2026

Transactions

Signal

Ticker / Company

Insider

Transaction

Value

Filed

53

Koppers Holdings Inc.

Leroy M Ball

Director, CEO

Sale

$113.1K

2,659 sh

May 14 8:02 PM

May 13, 2026

53

Koppers Holdings Inc.

Leroy M Ball

Director, CEO

Sale

$231.4K

6,275 sh

Mar 4 9:22 PM

Mar 2, 2026