Which hedge funds own KOP? KOPPERS HOLDINGS INC, Q2 2026 13F holders
Basic Materials · Open on the interactive board
15 of the hedge funds tracked by WhaleCreep disclosed a position in KOP (KOPPERS HOLDINGS INC) in their Q2 2026 13F filings, worth $95.6m in total. The largest holder by portfolio weight is Simcoe Capital Management, LLC at 12.3% of its book. 2 managers opened a new position this quarter: Mirabella Financial Services LLP, Quarry LP. 4 exited: Balyasny Asset Management L.P., Millennium Management LLC, Numerai GP LLC.
Who discovered KOP first?
Earliest meaningful positions among the 4 tracked managers we observed opening KOP since Q1 2012.
1 Rubric Capital Management LP First reported Q4 2020 · ≥1% from Q1 2021 0.04%initial weight · $470.0k Exitedby Q3 2024 · held 15q +19%stock since Q4 2020
Weight of Rubric Capital Management LP's 13F book in KOP, by quarter
- 2.0% peak weight, Q2 2021
- $51.6m peak reported value
- 15 quarters held
- 11q before the median tracked entry
The stock's split-adjusted price moved +19% between Q4 2020 and Q2 2024, the last quarter this manager reported the position.
17 managers already held KOP when our coverage of them began
Simcoe Capital Management, LLC (Q1 2026), JB Capital Partners LP (Q1 2026), EntryPoint Capital, LLC (Q1 2026), Campbell & CO Investment Adviser LLC (Q1 2026), Mangrove Partners Im, LLC (Q1 2026), Pdt Partners, LLC (Q1 2026), Two Sigma Investments, LP (Q1 2026), Engineers Gate Manager LP (Q1 2026), Arrowstreet Capital, Limited Partnership (Q1 2026), Aqr Capital Management LLC (Q1 2026), Squarepoint Ops LLC (Q1 2026), Skylands Capital, LLC (Q1 2026), D. E. Shaw & Co., Inc. (Q1 2026), Balyasny Asset Management L.P. (Q1 2026), Millennium Management LLC (Q1 2026), Numerai GP LLC (Q1 2026), Trexquant Investment LP (Q1 2026).
Their first filing on record already includes KOP, so when they first bought it is unknown. They are not ranked above.
View discovery timeline
Dots mark the ranked managers' first reported quarters. Price is the quarter-end price implied by 13F filings, split-adjusted, shown from Q1 2026 where the series is continuous. Coverage widened in Q1 2026 from about a hundred managers to over a thousand, so holders and new holders are shown relative to the managers filing each quarter.
How this is calculated
13F filings are quarterly snapshots of long US-listed equity positions. They do not show exact purchase dates, intra-quarter trading, short positions, most derivatives, or a manager's actual performance. "First reported" is the first quarter-end filing that shows the position.
A manager is ranked only if we observed it filing, without KOP, within two quarters before its first position. Ranking is by the first quarter the position reached 1% of the manager's 13F book in a run of at least 2 filings, then by peak weight. "High conviction" means a peak weight of at least 5%.
Stock changes are the split-adjusted change in the quarter-end price implied by 13F filings, excluding dividends. They describe the stock over the period, not the return any manager earned. Phases are cut where the share of tracked managers holding KOP passed one third and two thirds of its peak.
Which hedge funds hold KOP? Current holders by portfolio weight
| Manager | As of | Weight of book | Value | Shares | Δ shares | Action |
|---|---|---|---|---|---|---|
| Simcoe Capital Management, LLC | Q2 2026 | 12.3% | $63.6m | 1,416,160 | 50% | added |
| JB Capital Partners LP | Q2 2026 | 0.5% | $3.5m | 78,101 | 0% | held |
| EntryPoint Capital, LLC | Q2 2026 | 0.1% | $298.7k | 6,652 | -57% | reduced |
| Campbell & CO Investment Adviser LLC | Q2 2026 | 0.1% | $1.0m | 23,222 | 150% | added |
| Mangrove Partners Im, LLC | Q2 2026 | 0.0% | $560.6k | 12,486 | 117% | added |
| Pdt Partners, LLC | Q2 2026 | 0.0% | $430.3k | 9,583 | 0% | held |
| Mirabella Financial Services LLP | Q2 2026 | 0.0% | $214.1k | 4,768 | – | new |
| Two Sigma Investments, LP | Q2 2026 | 0.0% | $11.9m | 266,052 | -36% | reduced |
| Engineers Gate Manager LP | Q2 2026 | 0.0% | $536.1k | 11,940 | -69% | reduced |
| Arrowstreet Capital, Limited Partnership | Q2 2026 | 0.0% | $8.5m | 189,200 | 17% | added |
| Aqr Capital Management LLC | Q2 2026 | 0.0% | $3.5m | 78,205 | -18% | reduced |
| Squarepoint Ops LLC | Q2 2026 | 0.0% | $507.6k | 11,304 | 103% | added |
| Skylands Capital, LLC | Q2 2026 | 0.0% | $7.9k | 175 | -99% | reduced |
| D. E. Shaw & Co., Inc. | Q2 2026 | 0.0% | $918.7k | 20,462 | 64% | added |
| Quarry LP | Q2 2026 | 0.0% | $2.7k | 61 | – | new |
Exited since the previous quarter
| Manager | Prior weight | Prior value |
|---|---|---|
| Balyasny Asset Management L.P. | 0.0% | $555.3k |
| Millennium Management LLC | 0.0% | $2.0m |
| Numerai GP LLC | 0.7% | $1.4m |
| Trexquant Investment LP | 0.0% | $1.1m |
How has hedge fund ownership of KOP changed?
| Quarter | Managers holding | Combined value |
|---|---|---|
| Q2 2026 | 15 | $95.6m |
| Q1 2026 | 18 | $75.5m |
| Q4 2025 | 2 | $1.2m |
| Q3 2025 | 2 | $1.3m |
| Q2 2025 | 2 | $1.4m |
| Q1 2025 | 1 | $1.2m |
| Q4 2024 | 2 | $5.3m |
| Q3 2024 | 2 | $3.0m |
| Q2 2024 | 2 | $16.3m |
| Q1 2024 | 2 | $35.4m |
| Q4 2023 | 3 | $56.5m |
| Q3 2023 | 3 | $46.2m |
| Q2 2023 | 3 | $37.3m |
| Q1 2023 | 3 | $39.3m |
| Q4 2022 | 1 | $32.0m |
| Q3 2022 | 1 | $23.6m |
Counts every tracked manager that disclosed KOP in that quarter's filing, including managers that have since stopped filing.