Dividend on the way · $0.09
Koppers
Supplier of railroad crossties, utility poles, and wood-preservation chemicals across North America.
$46.56
After-hours close−0.05 (−0.11%)
At close$46.61(+0.82%)
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Breakdown13F · Form 4
Institutions 107.48%Insiders 5.22%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 19.23M · Float 16.74M · 87.0% free float
Institutions13F, as of Jun 30, 2026
219 holders · 20.67M shares · 36 new positions · 109 increased · 69 reduced · 21 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 3.05M | 15.85% | +2.5K | Aug 7, 2026 |
| Simcoe Capital Management, LLC | 1.42M | 7.36% | +471.7K | Aug 14, 2026 |
| Dimensional Fund Advisors LP | 1.24M | 6.43% | +45.9K | Aug 11, 2026 |
| Pzena Investment Management LLC | 1.06M | 5.52% | −148.1K | Aug 7, 2026 |
| Fuller & Thaler Asset Management, Inc. | 943.3K | 4.90% | −35.3K | Aug 12, 2026 |
| LSV Asset Management | 941.9K | 4.90% | +15.9K | Aug 6, 2026 |
| American Century Companies Inc | 848.1K | 4.41% | +313.1K | Aug 12, 2026 |
| Vanguard Capital Management LLC | 812.6K | 4.23% | −27.8K | Aug 13, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 15.30% | 2.95M | 13G | Apr 24, 2026 ↗ |
| Simcoe Capital Management, LLCincl. SDR Partners, LLC, Jacobowitz Jeffrey +3 more | 7.00% | 1.35M | 13D | May 19, 2026 ↗ |
| Pzena Investment Management LLC | 6.10% | 1.22M | 13G | Apr 28, 2025 ↗ |
| Vanguard Capital Management | 5.08% | 983.6K | 13G | Apr 30, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| M. Leroy Ball | director, officer: CEO | 433.6K | 2.25% | Aug 20, 2026 |
| Albert J. Neupaver | director | 83.8K | 0.44% | May 11, 2026 |
| James A. Sullivan | officer: President and CTO | 82.9K | 0.43% | Aug 12, 2026 |
| Stephanie L. Apostolou | officer: Chief Legal&Sus Officer & Sec. | 63.2K | 0.33% | Mar 2, 2026 |
| Stephen R. Tritch | director | 47.8K | 0.25% | May 6, 2025 |
| Louis L. Testoni | director | 45.8K | 0.24% | May 6, 2025 |
| Jimmi Sue Smith | officer: Chief Financial Officer | 41.1K | 0.21% | Jan 6, 2026 |
| Bradley A. Pearce | officer: CAO | 41.0K | 0.21% | Aug 11, 2026 |
| Stephen G. Lucas | officer: SVP, Culture and Engagement | 34.3K | 0.18% | Aug 13, 2026 |
| Traci L. Jensen | director | 32.1K | 0.17% | May 11, 2026 |
31 people have not refiled in the last 18 months (1.46M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 19, 2026 | M. Leroy Balldirector, officer: CEO | Sale | 3,000 | $45.84 | 433,555 |
| Aug 12, 2026 | Stephen G. Lucasofficer: SVP, Culture and Engagement | Sale | 1,308 | $44.55 | 34,345 |
| Aug 11, 2026 | James A. Sullivanofficer: President and CTO | Sale | 7,500 | $50.00 | 82,898 |
| Aug 10, 2026 | Bradley A. Pearceofficer: CAO | Sale | 2,000 | $51.01 | 41,037 |
| Aug 7, 2026 | James A. Sullivanofficer: President and CTO | Sale · 2 lots | 80,000 | $50.01 | 90,398 |
| Jun 18, 2026 | M. Leroy Balldirector, officer: CEO | Sale | 3,412 | $43.90 | 436,243 |
| Jun 11, 2026 | M. Leroy Balldirector, officer: CEO | Sale | 4,141 | $41.34 | 439,955 |
| May 13, 2026 | M. Leroy Balldirector, officer: CEO | Sale | 2,659 | $42.55 | 444,096 |
| Mar 17, 2026 | M. Leroy Balldirector, officer: CEO | Sale | 2,489 | $37.91 | 447,459 |
| Mar 2, 2026 | M. Leroy Balldirector, officer: CEO | Sale · 3 lots | 6,275 | $36.87 | 450,273 |
CongressHouse and Senate disclosures
Not reported.