What was the value and percentage of James Sullivan's recent stock sale at Koppers Holdings, and how does the sale price compare to the current share price?

James Sullivan, President & Chief Transformation Officer of Koppers Holdings Inc, sold US$4.0 million worth of company stock, reducing his holding by 47%. The transaction occurred at a price higher than the current share price.

What does the insider ownership level and recent insider trading activity suggest about investor sentiment at Koppers Holdings?

Insiders collectively hold 6.0% of Koppers Holdings, and there have been no insider purchases in the last year — a pattern that, combined with Sullivan’s significant sale, suggests caution for potential investors.

Koppers Holdings President & Chief Transformation Officer James Sullivan Sells 47% Of Holding

Aug 13, 2026

Koppers Holdings President James Sullivan sold $4.0 million worth of stock, reducing his holding by 47% at a price above current levels. Insider ownership remains at 6% with no recent purchases noted.

Simply Wall Street

Koppers Holdings President & Chief Transformation Officer James Sullivan Sells 47% Of Holding

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