Issuer · CIK 0001315257
KOP — Koppers Holdings Inc.
Recent filings
- Jun 23, 2026·Form 4·Sell$149.8K
KOP/Koppers Holdings Inc.
BALL M LEROY · CEO
Mechanical filing
AI thesis skipped - Jun 17, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
Feng Xudong · director
Mechanical filing
AI thesis skipped - Jun 17, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
WILKERSON SONJA MICHELLE · director
Mechanical filing
AI thesis skipped - Jun 17, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
MOTLEY DAVID L · director
Mechanical filing
AI thesis skipped - Jun 17, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
Sandifer Andrew D · director
Mechanical filing
AI thesis skipped - Jun 15, 2026·Form 4·Sell$171.2K
KOP/Koppers Holdings Inc.
BALL M LEROY · CEO
Mechanical filing
AI thesis skipped - Jun 4, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
Feng Xudong · director
Mechanical filing
AI thesis skipped - May 27, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
Brenner Eric D. · CFO and Treasurer
Mechanical filing
AI thesis skipped - May 14, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
Pearce Bradley A · Interim CFO and CAO
Mechanical filing
AI thesis skipped - May 14, 2026·Form 4·Sell$113.1K
KOP/Koppers Holdings Inc.
BALL M LEROY · CEO
32conviction - May 11, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
MOTLEY DAVID L · director
Mechanical filing
AI thesis skipped - May 11, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
WILKERSON SONJA MICHELLE · director
Mechanical filing
AI thesis skipped - May 11, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
Sandifer Andrew D · director
Mechanical filing
AI thesis skipped - May 11, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
Posadas Laura J · director
Mechanical filing
AI thesis skipped - May 11, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
Feng Xudong · director
Mechanical filing
AI thesis skipped - May 11, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
NEUPAVER ALBERT J · director
Mechanical filing
AI thesis skipped - May 11, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
Vartanian Nishan J. · director
Mechanical filing
AI thesis skipped - May 11, 2026·Form 4·Other—
KOP/Koppers Holdings Inc.
JENSEN TRACI L · director
Mechanical filing
AI thesis skipped