KOP
Koppers Holdings Inc. · Basic Materials · Chemicals - Specialty
Momentum inputs (comparable managers):
holder breadth +12.5% ·
share flow +11.6% ·
net new positions +11.1%
— formula
Broad accumulation — rising shares across more holders
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q3 2024
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 80 | +2 | 11.62M | $521.50M | +7 | −5 |
| Q1 2026 | 81 | +2 | 11.47M | $443.39M | +8 | −6 |
| Q4 2025 | 79 | +1 | 12.18M | $329.82M | +1 | — |
| Q3 2025 | 16 | 0 | 7.38M | $206.56M | — | — |
| Q2 2025 | 13 | +1 | 7.56M | $243.04M | +2 | −1 |
| Q1 2025 | 9 | -1 | 1.88M | $52.72M | — | −1 |
| Q4 2024 | 10 | 0 | 2.03M | $65.62M | — | — |
| Q3 2024 | 9 | +1 | 1.14M | $41.48M | +1 | — |
| Q2 2024 | 8 | — | 1.02M | $37.65M | — | — |
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Geode Capital Management ✦ (passive) | 468.90K | -0.2% | $17.13M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 468.90K | -0.2% | $17.13M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 3 | Millennium Management ✦ | 320.37K | +62.9% | $11.70M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 4 | AQR Capital Management ✦ | 100.39K | +5.8% | $3.67M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 5 | AQR Capital Management ✦ | 100.39K | +5.8% | $3.67M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 6 | AQR Capital Management ✦ | 100.39K | +5.8% | $3.67M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 7 | Citadel Advisors ✦ | 95.36K | -21.9% | $3.48M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 8 | Citadel Advisors ✦ | 95.36K | -21.9% | $3.48M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 9 | Renaissance Technologies ✦ | 77.90K | -0.1% | $2.85M | 0.0% | ▼ Trim | 2 | SEC ↗ |
| 10 | Two Sigma Investments ✦ | 41.68K | +27.0% | $1.52M | 0.0% | ▲ Add | 2 | SEC ↗ |
| 11 | T. Rowe Price ✦ | 17.17K | +7.4% | $628,000 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 12 | D. E. Shaw & Co. ✦ | 9.17K | +23.0% | $335,090 | 0.0% | ▲ Add | 2 | SEC ↗ |
| 13 | Point72 Asset Management ✦ | 4.40K | New | $160,732 | 0.0% | New | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| Point72 Asset Management | $160,732 | 0.0% |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 203 holders, 19.00M shares, $678.99M reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Open-market purchases (P)
No open-market insider purchases in our coverage window.
Open-market sales (S)
Officer, Director · 3.00K sh · $137,520
Officer · 1.31K sh · $58,271
Officer · 7.50K sh · $375,000
Officer · 2.00K sh · $102,020
Officer · 79.90K sh · $4.00M
Officer · 100 sh · $5,122
Awards, exercises and tax withholding are never counted as buys or sales here. Methodology