Koppers Holdings Inc.
KOP- Exchange
- NYSE
- Industry
- Lumber & Wood Products (No Furniture)
- SEC CIK
- 0001315257
In the last 90 days, Koppers Holdings Inc. insiders filed 0 open-market purchases and 6 sales; 217 institutions reported holding it in 13F filings for Q2 2026, worth $871.2M in total; no superinvestor holds it.
13F holders, Q3 2025
Institutional positions in Koppers Holdings Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 200
- −2 vs. Q2 2025
- Shares held
- 18.5M
- −142.7K (−0.8%) vs. Q2 2025
- Total value
- $517.8M
- −$81.3M (−13.6%) vs. Q2 2025
- New holders
- 24
- 74 more added
- Sold out
- 26
- 66 more reduced
1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting KOP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 217 | $871.2M |
| Q1 2026 | 204 | $738.0M |
| Q4 2025 | 193 | $523.2M |
| Q3 2025 | 200 | $517.8M |
| Q2 2025 | 203 | $599.1M |
| Q1 2025 | 185 | $530.7M |
| Q4 2024 | 191 | $610.0M |
| Q3 2024 | 191 | $676.8M |
| Q2 2024 | 184 | $698.5M |
| Q1 2024 | 183 | $1.09B |
| Q4 2023 | 180 | $997.5M |
| Q3 2023 | 169 | $752.0M |
| Q2 2023 | 152 | $631.7M |
| Q1 2023 | 153 | $645.3M |
| Q4 2022 | 139 | $515.7M |
| Q3 2022 | 138 | $385.9M |
| Q2 2022 | 142 | $416.0M |
| Q1 2022 | 145 | $521.0M |
| Q4 2021 | 148 | $589.5M |
| Q3 2021 | 141 | $614.0M |
| Q2 2021 | 140 | $625.0M |
| Q1 2021 | 147 | $657.6M |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Koppers Holdings Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Invenomic Capital Management LP | 0 | $0 | 0.00% | −34,118−100.0% | Sold out |
| Susquehanna International Group, LLP | 0 | $0 | 0.00% | −28,688−100.0% | Sold out |
| Gsa Capital Partners LLP | 0 | $0 | 0.00% | −27,898−100.0% | Sold out |
| Baird Financial Group, Inc. | 0 | $0 | 0.00% | −24,510−100.0% | Sold out |
| SummerHaven Investment Management, LLC | 0 | $0 | 0.00% | −23,016−100.0% | Sold out |
| Segall Bryant & Hamill, LLC | 0 | $0 | 0.00% | −21,643−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −20,417−100.0% | Sold out |
| Horizon Investments, LLC | 0 | $0 | 0.00% | −18,243−100.0% | Sold out |
| Panagora Asset Management Inc | 0 | $0 | 0.00% | −16,324−100.0% | Sold out |
| Sanctuary Advisors, LLC | 0 | $0 | 0.00% | −15,233−100.0% | Sold out |
| HSBC Holdings PLC | 0 | $0 | 0.00% | −14,681−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −12,403−100.0% | Sold out |
| Nebula Research & Development LLC | 0 | $0 | 0.00% | −11,756−100.0% | Sold out |
| Petrus Trust Company, LTA | 0 | $0 | 0.00% | −8,157−100.0% | Sold out |
| Bailard, Inc. | 0 | $0 | 0.00% | −8,000−100.0% | Sold out |
| Yousif Capital Management, LLC | 0 | $0 | 0.00% | −7,523−100.0% | Sold out |
| DGS Capital Management, LLC | 0 | $0 | 0.00% | −7,203−100.0% | Sold out |
| Manufacturers Life Insurance Company, The | 0 | $0 | 0.00% | −7,170−100.0% | Sold out |
| Sequoia Financial Advisors, LLC | 0 | $0 | 0.00% | −7,084−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −7,077−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −2,151−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −2,130−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −208−100.0% | Sold out |
| MAI Capital Management | 0 | $0 | 0.00% | −59−100.0% | Sold out |
| Assetmark, Inc | 0 | $0 | 0.00% | −7−100.0% | Sold out |
| Garde Capital, Inc. | 0 | $0 | 0.00% | −5−100.0% | Sold out |
| First Horizon Advisors, Inc. | – | – | – | – | Not filed |