As of the latest Form 4 filed Jun 23, 2026.
What Koppers Holdings Inc insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 20 most recent filings for KOP.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-23 | 2026-06-18 | BALL M LEROY CEO | SSale | −3.41K | $43.90 | $150K | No | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BALL M LEROY CEO | GGift | −300.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-06-15 | 2026-06-11 | BALL M LEROY, CEO | SSale | −4.14K | $41.34 | $171K | No | Form 4 ↗ |
| 2026-06-04 | 2026-06-03 | Feng Xudong Director | GGift | −5.70K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-27 | 2026-05-26 | Brenner Eric D. CFO and Treasurer | AAward | +6.62K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-13 | BALL M LEROY CEO | SSale | −2.66K | $42.55 | $113K | No | Form 4 ↗ |
| 2026-05-14 | 2026-05-12 | Pearce Bradley A Interim CFO and CAO | AAward | +5.00K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-07 | Posadas Laura J Director | AAward | +3.28K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-07 | Posadas Laura J, Director | MExercise | +11.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-07 | MOTLEY DAVID L Director | MExercise | +50.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-07 | Vartanian Nishan J. Director | AAward | +3.28K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-07 | Vartanian Nishan J., Director | MExercise | +50.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-07 | JENSEN TRACI L Director | AAward | +3.28K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-07 | JENSEN TRACI L, Director | MExercise | +50.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-07 | Feng Xudong Director | AAward | +3.28K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-11 | 2026-05-07 | NEUPAVER ALBERT J Director | MExercise | +50.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-17 | BALL M LEROY CEO | GGift | −1.20K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-17 | BALL M LEROY, CEO | SSale | −2.49K | $37.91 | $94.4K | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-10 | BALL M LEROY CEO | FTax | −22.2K | $33.20 | $738K | No | Form 4 ↗ |
| 2026-02-12 | 2026-02-10 | BALL M LEROY, CEO | MExercise | +30.0K | $18.11 | $543K | No | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also KOP’s full analysis or the market-wide insider trading feed. The tabs above jump to KOP’s other SEC data.
Source: SEC Form 4 filings for KOP, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
Research and education only — not financial advice. TENKis not a registered investment adviser or broker-dealer and gives no personalized advice. Every call is impersonal — identical for all users, generated on a schedule from SEC filings plus a delayed/third-party price feed — may be wrong or out of date, and is not a recommendation to buy or sell any security. The operator and an affiliated trading operation may hold or trade the securities TENK rates; see Disclosures. Past performance does not guarantee future results. Do your own research.