Koppers Holdings Inc. (KOP) Insider Trading
Over the last 3 months, KOP insiders made 0 open-market buys and 8 sales, a net sale of -$5.0M (SEC Form 4). Over the last 6 months, 142 institutions increased and 139 reduced their position (13F).
Insider Activity
Sentiment
0/100
Buys (3m)
0
Sells (3m)
8
Net (3m)
-$5.0M
Insider trades by month Buys Sells
Mar
Aug
Mar
May
Jun
Aug
Context3-month price +10.4%Institutions accumulating (13F)
| Date | Insider | Type | Shares | Price |
|---|---|---|---|---|
| Aug 20, 2026 | BALL M LEROYdirector, officer: CEO | Sell | 3,000 | $45.84 |
| Aug 13, 2026 | Lucas Stephen Gofficer: SVP, Culture and Engagement | Sell | 1,308 | $44.55 |
| Aug 12, 2026 | Sullivan James A.officer: President and CTO | Sell | 7,500 | $50.00 |
| Aug 11, 2026 | Pearce Bradley Aofficer: CAO | Sell | 2,000 | $51.01 |
| Aug 11, 2026 | Sullivan James A.officer: President and CTO | Sell | 79,900 | $50.01 |
| Aug 11, 2026 | Sullivan James A.officer: President and CTO | Sell | 100 | $51.22 |
| Jun 23, 2026 | BALL M LEROYdirector, officer: CEO | Sell | 3,412 | $43.90 |
| Jun 17, 2026 | WILKERSON SONJA MICHELLEdirector | Grant | 30 | — |
| Jun 17, 2026 | MOTLEY DAVID Ldirector | Grant | 21 | — |
| Jun 17, 2026 | Feng Xudongdirector | Grant | 34 | — |
| Jun 17, 2026 | Sandifer Andrew Ddirector | Grant | 14 | — |
| Jun 15, 2026 | BALL M LEROYdirector, officer: CEO | Sell | 4,141 | $41.34 |
| May 27, 2026 | Brenner Eric D.officer: CFO and Treasurer | Grant | 6,620 | — |
| May 14, 2026 | Pearce Bradley Aofficer: Interim CFO and CAO | Grant | 5,000 | — |
| May 14, 2026 | BALL M LEROYdirector, officer: CEO | Sell | 2,659 | $42.55 |
| May 11, 2026 | WILKERSON SONJA MICHELLEdirector | Grant | 3,280 | — |
| May 11, 2026 | Vartanian Nishan J.director | Option | 50 | — |
| May 11, 2026 | Vartanian Nishan J.director | Grant | 3,280 | — |
| May 11, 2026 | MOTLEY DAVID Ldirector | Option | 50 | — |
| May 11, 2026 | Posadas Laura Jdirector | Grant | 3,280 | — |
| May 11, 2026 | NEUPAVER ALBERT Jdirector | Option | 50 | — |
| May 11, 2026 | MOTLEY DAVID Ldirector | Grant | 3,280 | — |
| May 11, 2026 | JENSEN TRACI Ldirector | Grant | 3,280 | — |
| May 11, 2026 | Posadas Laura Jdirector | Option | 11 | — |
| May 11, 2026 | Feng Xudongdirector | Grant | 3,280 | — |
| May 11, 2026 | Sandifer Andrew Ddirector | Grant | 3,280 | — |
| May 11, 2026 | JENSEN TRACI Ldirector | Option | 50 | — |
| Mar 25, 2026 | WILKERSON SONJA MICHELLEdirector | Grant | 50 | — |
| Mar 25, 2026 | MOTLEY DAVID Ldirector | Grant | 50 | — |
| Mar 25, 2026 | Posadas Laura Jdirector | Grant | 11 | — |
Source: KOP SEC Form 4 filings, latest Aug 20, 2026. For informational purposes only — not investment advice.
Institutional activity (13F)
How institutions changed their KOP positions over the last 6 months (SEC Form 13F).
Increased
142
New positions
70
Reduced
139
Sold out
16
Largest moves
| Institution | Action | Shares | Filed |
|---|---|---|---|
| BlackRock, Inc. | Increased | 3.0M | Aug 7, 2026 |
| BLACKROCK, INC. | Reduced | 3.0M | May 13, 2026 |
| Simcoe Capital Management, LLC | Increased | 1.4M | Aug 14, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.2M | Aug 11, 2026 |
| PZENA INVESTMENT MANAGEMENT LLC | Increased | 1.2M | Apr 24, 2026 |
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.2M | May 7, 2026 |
| PZENA INVESTMENT MANAGEMENT LLC | Reduced | 1.1M | Aug 7, 2026 |
| FULLER & THALER ASSET MANAGEMENT, INC. | Reduced | 979K | May 14, 2026 |
| SIMCOE CAPITAL MANAGEMENT, LLC | Increased | 944K | May 14, 2026 |
| FULLER & THALER ASSET MANAGEMENT, INC. | Reduced | 943K | Aug 12, 2026 |
| LSV ASSET MANAGEMENT | Increased | 942K | Aug 6, 2026 |
| LSV ASSET MANAGEMENT | Reduced | 926K | May 11, 2026 |
| AMERICAN CENTURY COMPANIES INC | Increased | 848K | Aug 12, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | New Position | 840K | May 15, 2026 |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 813K | Aug 13, 2026 |
Source: SEC Form 13F filings. For informational purposes only — not investment advice.