Open Insider Trading Activity for Koppers Holdings Inc. CEO Ball M Leroy
31-day price and insider activity (up to 2 years)
Daily candles with triangles for the buy and sale transactions shown below. Scroll left or zoom out to load earlier candles (up to 2 years).
▲ Insider buy
▼ Insider sale
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| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. KOP | 2026-05-14 | 2026-05-13 | Koppers Holdings Inc. | Ball M Leroy | CEO | Sell | 1 | 2,659 | $42.55 | $113,140.45 | 0.60% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. KOP | 2026-03-18 | 2026-03-17 | Koppers Holdings Inc. | Ball M Leroy | CEO | Sell | 1 | 2,489 | $37.91 | $94,357.99 | 0.55% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. KOP | 2026-03-04 | 2026-03-02 | Koppers Holdings Inc. | Ball M Leroy | CEO | Sell | 3 | 6,275 | $36.87 | $231,371.38 | 0.46% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. KOP | 2025-08-18 | 2025-08-15 | Koppers Holdings Inc. | Ball M Leroy | CEO | Sell | 1 | 2,448 | $30.48 | $74,615.04 | 0.68% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. KOP | 2025-03-20 | 2025-03-19 | Koppers Holdings Inc. | Ball M Leroy | CEO | Sell | 2 | 3,784 | $29.27 | $110,768.20 | 0.52% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. KOP | 2024-11-20 | 2024-11-19 | Koppers Holdings Inc. | Ball M Leroy | CEO | Sell | 2 | 6,000 | $37.26 | $223,580.25 | 0.95% | View Filing |
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. KOP | 2024-11-18 | 2024-11-15 | Koppers Holdings Inc. | Ball M Leroy | CEO | Sell | 3 | 11,103 | $37.22 | $413,198.31 | 1.16% | View Filing |
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. KOP | 2024-11-14 | 2024-11-13 | Koppers Holdings Inc. | Ball M Leroy | CEO | Sell | 3 | 9,102 | $37.87 | $344,699.97 | 0.95% | View Filing |
| Explained M/S: sale activity tied to share conversions or derivative-related share movements. KOP | 2024-06-10 | 2024-06-07 | Koppers Holdings Inc. | Ball M Leroy | CEO | Sell | 2 | 5,000 | $43.07 | $215,350.00 | 0.77% | View Filing |