KOP · ISSUER CIK 1315257
Koppers Holdings Inc.
Between Aug 1, 2026 and Oct 29, 2026, 4 Koppers Holdings Inc. insiders reported $0.00 of open-market purchases and $4.9M of sales on SEC Form 4.
↗4 insiders filed
Original Form 4 filings from Aug 1, 2026 to Oct 29, 2026. 0 of 6 sales were reported under a 10b5-1 plan.
$0.00Insider buying
$4.9MInsider selling
−$4.9MNet open-market
Sep 1, 2026Latest filing
| Ticker | Insider | Type | Owned | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sep 1, 202616:23 | Aug 31, 2026 | KOP | CEO, Director | S · Sell | $45.96 | −4,000 | 429,555 | -1% | −$184K | ||
| Sep 1, 202616:23 | Aug 31, 2026 | KOP | CEO, Director | G · Gift | — | −200 | 429,355 | -0% | — | ||
| Aug 20, 202616:08 | Aug 19, 2026 | KOP | CEO, Director | S · Sell | $45.84 | −3,000 | 433,555 | -1% | −$138K | ||
| Aug 13, 202617:11 | Aug 12, 2026 | KOP | SVP, Culture and Engagement | S · Sell | $44.55 | −1,308 | 34,345 | -4% | −$58K | ||
| Aug 12, 202618:29 | Aug 11, 2026 | KOP | President and CTO | S · Sell | $50.00 | −7,500 | 82,898 | -8% | −$375K | ||
| Aug 11, 202616:25 | Aug 10, 2026 | KOP | CAO | S · Sell | $51.01 | −2,000 | 41,037 | -5% | −$102K | ||
| Aug 11, 202616:21 | Aug 7, 2026 | KOP | President and CTO | S · Sell | $50.01 | −80,000 | 90,398 | -47% | −$4.0M |