M Leroy Ball insider trades

Open-market stock purchases and sales by M Leroy Ball, CEO at Koppers Holdings Inc, from SEC Form 4 filings since Feb 24, 2010.

Track record: 100% of 10 scored buys are up 5% or more since purchase, averaging +123%.

Recent trades

DateStockTradeValue
Aug 31, 2026KOP Koppers Holdings IncSold$184K
Aug 31, 2026KOP Koppers Holdings IncSold (not open market)—
Aug 19, 2026KOP Koppers Holdings IncSold$138K
Jun 18, 2026KOP Koppers Holdings IncSold$150K
Jun 11, 2026KOP Koppers Holdings IncSold$171K
Jun 11, 2026KOP Koppers Holdings IncSold (not open market)—
May 19, 2026ATI ATI IncBought (not open market)—
May 13, 2026KOP Koppers Holdings IncSold$113K
Mar 17, 2026KOP Koppers Holdings IncSold$94.4K
Mar 17, 2026KOP Koppers Holdings IncSold (not open market)—
Mar 2, 2026KOP Koppers Holdings IncSold$79.8K
Mar 2, 2026KOP Koppers Holdings IncSold$12.3K
Mar 2, 2026KOP Koppers Holdings IncSold$139K
Mar 2, 2026KOP Koppers Holdings IncSold (not open market)—
Feb 26, 2026KOP Koppers Holdings IncBought (not open market)—
Feb 26, 2026KOP Koppers Holdings IncBought (not open market)—
Feb 26, 2026KOP Koppers Holdings IncSold (not open market)$828K
Feb 26, 2026KOP Koppers Holdings IncBought (not open market)—
Feb 18, 2026KOP Koppers Holdings IncSold (not open market)$781K
Feb 18, 2026KOP Koppers Holdings IncBought (not open market)—
Feb 17, 2026ATI ATI IncSold (not open market)—
Feb 10, 2026KOP Koppers Holdings IncSold (not open market)$738K
Feb 10, 2026KOP Koppers Holdings IncBought (not open market)—
Jan 5, 2026KOP Koppers Holdings IncBought (not open market)—
Jan 5, 2026KOP Koppers Holdings IncSold (not open market)$1.1M

Companies traded

  • KOP Koppers Holdings Inc: 10 buys, 44 sales, last Aug 31, 2026
  • ATI ATI Inc: 1 buy, last May 19, 2026
  • CCC Calgon Carbon Corporation: 8 sales, last Aug 30, 2010

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