Stocks · Materials · Lumber & Wood Products (No Furniture)

Koppers Holdings Inc.

KOP Clue Score37
United States Fiscal year ends December CIK 0001315257 Results filed 6 Aug 2026

What the insiders did Net selling

Nothing of that kind in this period.

What was left out

Form 4 filings counted 569
Amendments (4/A) skipped 27
Filings about a different issuer 0
Unreadable filings 0
Joint filings 0
Sales on a Rule 10b5-1 plan 0
Sales straight out of an exercise 114
Sales at will 65
Transactions with no price 0
Shares from compensation/vesting 2,804,956
Sales filed before the plan box existed 31
History held since 29 Sep 2006