KOP · Koppers Holdings Inc. · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Superinvestors Holding KOP
All superinvestors →Holder Concentration
Across 219 13F filersWho Holds KOP
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 217 filers, like-for-like change +1.8%; actively managed books +2.3%; index-like books +0.8%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 52.7% | 101 | -0.6% |
| Exempt adviser | 0.0% | 1 | new |
| Adviser | 4.2% | 8 | +27.9% |
| Bank | 8.6% | 14 | +4.5% |
| Insurer | 0.9% | 2 | +9.3% |
| Benefit plan | 0.3% | 6 | -25.1% |
| Non-US | 0.7% | 9 | +3.3% |
| Holding company | 18.0% | 7 | +0.1% |
| Unknown | 14.5% | 69 | +5.3% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 34.3% | 32 | +0.8% |
| Systematic-like | 1.9% | 6 | -42.8% |
| Concentrated | 10.7% | 33 | +29.1% |
| Diversified active | 53.0% | 146 | +0.9% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 59.7% | 127 | +0.2% |
| Medium turnover | 29.4% | 56 | +15.0% |
| High turnover | 2.5% | 16 | -45.9% |
| Unknown | 8.4% | 18 | -0.9% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 8.8% | 21 | -1.0% |
| Medium horizon | 26.4% | 30 | +9.6% |
| Long horizon | 62.1% | 157 | +1.0% |
| Unknown | 2.7% | 9 | -29.0% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 12.7% | 39 | +21.7% |
| $1B to $10B | 4.7% | 45 | -1.3% |
| $10B to $100B | 22.1% | 75 | -5.3% |
| $100B or more | 60.4% | 58 | +1.3% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 1.9% | 42 | -6.5% |
| Pooled investment vehicles | 10.1% | 9 | +12.8% |
| Registered funds and BDCs | 25.0% | 16 | -3.2% |
| Pension and profit sharing plans | 0.0% | 1 | +55.7% |
| Insurance companies | 0.2% | 3 | +1.3% |
| Charitable organizations | 0.0% | 1 | new |
| Governments and sovereign funds | 1.7% | 6 | +8.4% |
| Other investment advisers | 0.1% | 5 | +31.5% |
| Other | 0.1% | 1 | -3.5% |
| Diversified | 13.6% | 17 | -4.7% |
| Unknown | 47.3% | 116 | +4.6% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 11.5% | 21 | +9.6% |
| Private equity funds | 0.6% | 8 | +9.4% |
| Venture capital funds | 0.0% | 1 | 0.0% |
| Real estate funds | 0.0% | 2 | +130.8% |
| Securitized asset funds | 0.3% | 1 | -14.0% |
| Other private funds | 14.0% | 14 | +0.6% |
| Mixed private funds | 5.6% | 2 | -11.6% |
| No private funds | 20.8% | 53 | -3.1% |
| Private funds, type not stated | 0.0% | 0 | — |
| Unknown | 47.3% | 115 | +4.5% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 97.3% | 189 | +1.6% |
| Outside the US | 2.7% | 28 | +6.6% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 1 holder with no observed 2026-03-31 13F and 4 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
217 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net buyers of $0 (0 buying, 0 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 34.3% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies KOP's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | SCSC Scansource, Inc. | 3 |
| 2 | HDSN Hudson Technologies Inc | 3 |
| 3 | SMPL Simply Good Foods Co | 3 |
| 4 | CARS Cars.com Inc. | 3 |
| 5 | KELYA Kelly Services Inc | 3 |
| 6 | TRS Trimas Corp | 3 |
| 7 | CSV Carriage Services Inc | 3 |
| 8 | REPX Riley Exploration Permian, Inc. | 3 |
| 9 | QCRH Qcr Holdings Inc | 3 |
| 10 | BWB Bridgewater Bancshares Inc | 3 |
Shareholder Targets
13F filers that own its peers but not KOP, quarter ended Jun 30, 2026Found through its holder-overlap peers: SCSC, HDSN, SMPL, CARS, KELYA, TRS, CSV, REPX, QCRH, BWB, PRDO, GDOT, BBSI, NATL, BCO, ATKR, GRBK, ALSN, BLDR, ECHO. 1,430 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $1,242,430,746 5 held | ECHO, BLDR, BBSI |
| 2 | DME Capital Management, LP Registered adviser, Diversified active | $757,769,335 1 held | GRBK |
| 3 | CITADEL ADVISORS LLC Registered adviser, Systematic-like | $519,468,954 18 held | ECHO, ALSN, BLDR |
| 4 | Darsana Capital Partners LP Registered adviser, Concentrated | $507,500,000 1 held | ECHO |
| 5 | NORGES BANK Non-US, Index-like | $500,077,638 8 held | ECHO, ALSN, BLDR |
| 6 | Arini Captial Management Ltd Registered adviser, Concentrated | $491,174,537 1 held | ECHO |
| 7 | MILLENNIUM MANAGEMENT LLC Registered adviser, Systematic-like | $455,550,560 18 held | ECHO, ALSN, NATL |
| 8 | Capital International Investors Adviser, Diversified active | $445,000,726 2 held | BLDR, ALSN |
| 9 | RENAISSANCE TECHNOLOGIES LLC Registered adviser, Systematic-like | $430,684,953 15 held | ALSN, PRDO, BBSI |
| 10 | Pentwater Capital Management LP Registered adviser, Concentrated | $391,790,000 1 held | ECHO |
Fund Ownership of KOP by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 27.38% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 5.18% | 980,266 |
| Index ETFs | 22.20% | 4,198,111 |
| Active ETFs | 3.09% | 585,258 |
| Active funds | 13.63% | 2,577,414 |
| Unclassified | 3.81% | 721,038 |
| All registered funds | 47.92% | 9,062,087 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega BlackRock, Inc. Holding company | $136,837,369 | 15.66% | 3,047,603 | Shares | 2026-08-07 | |
| Small Simcoe Capital Management, LLC Registered adviser | $63,585,584 | 7.28% | 1,416,160 | Shares | 2026-08-14 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $55,552,477 | 6.36% | 1,237,249 | Shares | 2026-08-11 | |
| Large PZENA INVESTMENT MANAGEMENT LLC Registered adviser | $47,651,696 | 5.45% | 1,061,285 | Shares | 2026-08-07 | |
| Large FULLER & THALER ASSET MANAGEMENT, INC. Registered adviser | $42,353,227 | 4.85% | 943,279 | Shares | 2026-08-12 | |
| Large LSV ASSET MANAGEMENT Registered adviser | $42,290,456 | 4.84% | 941,881 | Shares | 2026-08-06 | |
| Mega AMERICAN CENTURY COMPANIES INC | $38,078,253 | 4.36% | 848,068 | Shares | 2026-08-12 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $36,487,042 | 4.18% | 812,629 | Shares | 2026-08-13 | |
| Mega STATE STREET CORP Bank | $36,124,429 | 4.14% | 804,553 | Shares | 2026-09-22 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $24,203,210 | 2.77% | 539,047 | Shares | 2026-08-13 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $21,705,423 | 2.48% | 483,417 | Shares | 2026-08-12 | |
| Small Quaker Capital Investments, LLC | $18,344,119 | 2.10% | 408,555 | Shares | 2026-08-14 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $17,247,077 | 1.97% | 384,122 | Shares | 2026-08-14 | |
| Mega Invesco Ltd. Adviser | $14,933,963 | 1.71% | 332,605 | Shares | 2026-08-14 | |
| Mega AMERIPRISE FINANCIAL INC Adviser | $12,825,953 | 1.47% | 285,656 | Shares | 2026-08-14 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $11,945,734 | 1.37% | 266,052 | Shares | 2026-08-14 | |
| Mega NORTHERN TRUST CORP Bank | $11,381,294 | 1.30% | 253,481 | Shares | 2026-08-13 | |
| Mega MORGAN STANLEY Holding company | $10,907,285 | 1.25% | 242,924 | Shares | 2026-08-13 | |
| Mid Dana Investment Advisors, Inc. Registered adviser | $10,389,815 | 1.19% | 231,399 | Shares | 2026-08-13 | |
| Mega Bank of New York Mellon Corp Bank | $9,993,390 | 1.14% | 222,570 | Shares | 2026-08-06 | |
| Mid CSM Advisors, LLC | $8,726,090 | 1.00% | 194,345 | Shares | 2026-08-14 | |
| Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser | $8,495,080 | 0.97% | 189,200 | Shares | 2026-08-13 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $7,130,523 | 0.82% | 158,809 | Shares | 2026-08-14 | |
| Mid BRIDGEWAY CAPITAL MANAGEMENT, LLC Registered adviser | $6,902,926 | 0.79% | 153,740 | Shares | 2026-08-14 | |
| Large HUNTINGTON NATIONAL BANK | $6,581,756 | 0.75% | 146,587 | Shares | 2026-08-13 | |
| Mega PRINCIPAL FINANCIAL GROUP INC Insurer | $6,138,682 | 0.70% | 136,719 | Shares | 2026-08-04 | |
| Large Universal- Beteiligungs- und Servicegesellschaft mbH | $5,863,221 | 0.67% | 130,584 | Shares | 2026-08-06 | |
| Mega Russell Investments Group, Ltd. | $5,824,425 | 0.67% | 129,720 | Shares | 2026-08-06 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $5,654,616 | 0.65% | 125,938 | Shares | 2026-08-13 | |
| Mid SEIZERT CAPITAL PARTNERS, LLC Registered adviser | $5,510,217 | 0.63% | 122,722 | Shares | 2026-08-05 | |
| Mega JPMORGAN CHASE & CO Bank | $5,493,693 | 0.63% | 122,354 | Shares | 2026-08-12 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $5,294,426 | 0.61% | 117,916 | Shares | 2026-08-14 | |
| Large Pacer Advisors, Inc. | $5,121,832 | 0.59% | 114,072 | Shares | 2026-08-13 | |
| Large O'SHAUGHNESSY ASSET MANAGEMENT, LLC Registered adviser | $4,730,933 | 0.54% | 105,366 | Shares | 2026-08-13 | |
| Large Empowered Funds, LLC Registered adviser | $4,615,136 | 0.53% | 102,787 | Shares | 2026-08-17 | |
| Small DENALI ADVISORS LLC Registered adviser | $4,314,530 | 0.49% | 96,092 | Shares | 2026-08-10 | |
| Small Santori & Peters, Inc. Registered adviser | $3,821,992 | 0.44% | 83,834 | Shares | 2026-10-26 | |
| Small KESTREL INVESTMENT MANAGEMENT CORP Registered adviser | $3,746,905 | 0.43% | 83,450 | Shares | 2026-08-04 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $3,511,401 | 0.40% | 78,205 | Shares | 2026-08-14 | |
| Small JB CAPITAL PARTNERS LP | $3,506,734 | 0.40% | 78,101 | Shares | 2026-08-11 | |
| Mega FRANKLIN RESOURCES INC Adviser | $3,153,909 | 0.36% | 70,243 | Shares | 2026-08-13 | |
| Large Public Sector Pension Investment Board Non-US | $2,966,273 | 0.34% | 66,064 | Shares | 2026-08-13 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $2,942,431 | 0.34% | 65,533 | Shares | 2026-08-11 | |
| Large FEDERATED HERMES, INC. Adviser | $2,818,866 | 0.32% | 62,781 | Shares | 2026-08-12 | |
| Small IRONWOOD INVESTMENT MANAGEMENT LLC Registered adviser | $2,609,408 | 0.30% | 58,116 | Shares | 2026-08-14 | |
| Small Villanova Investment Management Co LLC Registered adviser | $2,506,991 | 0.29% | 55,835 | Shares | 2026-07-28 | |
| Mega JANE STREET GROUP, LLC | $2,425,048 | 0.28% | 54,010 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $2,290,932 | 0.26% | 51,023 | Shares | 2026-08-11 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser | $2,274,991 | 0.26% | 50,668 | Shares | 2026-08-13 | |
| Mega RHUMBLINE ADVISERS Registered adviser | $2,232,607 | 0.26% | 49,724 | Shares | 2026-08-12 | |
| Mid XTX Topco Ltd | $2,084,886 | 0.24% | 46,434 | Shares | 2026-08-14 | |
| Mega Vanguard Global Advisers, LLC Registered adviser | $2,078,870 | 0.24% | 46,300 | Shares | 2026-08-13 | |
| Mega CITIGROUP INC Bank | $2,073,211 | 0.24% | 46,174 | Shares | 2026-08-03 | |
| Small Pacific Ridge Capital Partners, LLC Registered adviser | $1,930,475 | 0.22% | 42,995 | Shares | 2026-08-12 | |
| Mega Creative Planning Registered adviser | $1,805,428 | 0.21% | 40,210 | Shares | 2026-08-13 | |
| Mega Legal & General Group Plc | $1,783,561 | 0.20% | 39,723 | Shares | 2026-08-14 | |
| Mega Swiss National Bank | $1,656,810 | 0.19% | 36,900 | Shares | 2026-08-11 | |
| Mega VICTORY CAPITAL MANAGEMENT INC Registered adviser | $1,571,500 | 0.18% | 35,000 | Shares | 2026-08-07 | |
| Mega UBS Group AG Bank | $1,518,607 | 0.17% | 33,822 | Shares | 2026-08-13 | |
| Mega SEI INVESTMENTS CO Holding company | $1,518,428 | 0.17% | 33,818 | Shares | 2026-08-14 | |
| Large BNP PARIBAS ASSET MANAGEMENT Holding S.A. Non-US | $1,503,745 | 0.17% | 33,491 | Shares | 2026-08-13 | |
| Large PRUDENTIAL FINANCIAL INC Insurer | $1,491,757 | 0.17% | 33,224 | Shares | 2026-08-12 | |
| Large ACADIAN ASSET MANAGEMENT LLC | $1,487,312 | 0.17% | 33,125 | Shares | 2026-08-13 | |
| Large NEW YORK STATE COMMON RETIREMENT FUND | $1,404,023 | 0.16% | 31,270 | Shares | 2026-07-29 | |
| Mega VOYA INVESTMENT MANAGEMENT LLC Registered adviser | $1,386,736 | 0.16% | 30,885 | Shares | 2026-08-12 | |
| Large NOMURA ASSET MANAGEMENT INTERNATIONAL INC. Adviser | $1,373,940 | 0.16% | 30,600 | Shares | 2026-08-14 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $1,317,366 | 0.15% | 29,340 | Shares | 2026-08-14 | |
| Large GAMCO INVESTORS, INC. ET AL Registered adviser | $1,293,748 | 0.15% | 28,814 | Shares | 2026-08-12 | |
| Small GLOBEFLEX CAPITAL L P Registered adviser | $1,220,831 | 0.14% | 27,190 | Shares | 2026-08-12 | |
| Large Quantinno Capital Management LP Registered adviser | $1,106,201 | 0.13% | 24,637 | Shares | 2026-08-13 | |
| Mid HANCOCK WHITNEY CORP Bank | $1,096,367 | 0.13% | 24,418 | Shares | 2026-08-14 | |
| Mega ALLIANCEBERNSTEIN L.P. Registered adviser | $1,074,591 | 0.12% | 23,933 | Shares | 2026-08-14 | |
| Mid Campbell & CO Investment Adviser LLC Registered adviser | $1,042,667 | 0.12% | 23,222 | Shares | 2026-08-03 | |
| Large STATE OF WISCONSIN INVESTMENT BOARD Benefit plan | $1,034,855 | 0.12% | 23,048 | Shares | 2026-08-14 | |
| Large LAZARD ASSET MANAGEMENT LLC Adviser | $969,525 | 0.11% | 21,593 | Shares | 2026-08-14 | |
| Large INTECH INVESTMENT MANAGEMENT LLC Registered adviser | $932,977 | 0.11% | 20,779 | Shares | 2026-08-10 | |
| Mega D. E. Shaw & Co., Inc. | $918,743 | 0.11% | 20,462 | Shares | 2026-08-14 | |
| Mega CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM Benefit plan | $896,877 | 0.10% | 19,975 | Shares | 2026-08-24 | |
| Small SummerHaven Investment Management, LLC | $876,650 | 0.10% | 19,229 | Shares | 2026-10-19 | |
| Mid HARBOR CAPITAL ADVISORS, INC. Registered adviser | $876,194 | 0.10% | 19,219 | Shares | 2026-10-22 | |
| Mid Horizon Investments, LLC Registered adviser | $864,325 | 0.10% | 19,250 | Shares | 2026-08-13 | |
| Large KLP KAPITALFORVALTNING AS | $826,160 | 0.09% | 18,400 | Shares | 2026-08-12 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $794,730 | 0.09% | 17,700 | Call | 2026-08-14 | |
| Mega DEUTSCHE BANK AG\ Non-US | $789,431 | 0.09% | 17,582 | Shares | 2026-08-07 | |
| Mega RAYMOND JAMES FINANCIAL INC | $780,136 | 0.09% | 17,375 | Shares | 2026-08-14 | |
| Large CANADA LIFE ASSURANCE Co | $719,387 | 0.08% | 16,022 | Shares | 2026-08-13 | |
| Small Covestor Ltd | $716,379 | 0.08% | 15,955 | Shares | 2026-08-07 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $698,822 | 0.08% | 15,564 | Shares | 2026-08-14 | |
| Large Vident Advisory, LLC Registered adviser | $694,153 | 0.08% | 15,460 | Shares | 2026-08-12 | |
| Large FIFTH THIRD BANCORP Bank | $681,986 | 0.08% | 15,189 | Shares | 2026-08-05 | |
| Small Marble Wealth, LLC | $677,316 | 0.08% | 15,085 | Shares | 2026-08-07 | |
| Large Janney Montgomery Scott LLC Adviser | $636,053 | 0.07% | 14,166 | Shares | 2026-08-05 | |
| Large Allspring Global Investments Holdings, LLC Holding company | $634,796 | 0.07% | 14,138 | Shares | 2026-08-13 | |
| Small Kennondale Capital Management LLC | $609,652 | 0.07% | 13,578 | Shares | 2026-08-11 | |
| Large Pathstone Holdings, LLC | $594,295 | 0.07% | 13,236 | Shares | 2026-08-13 | |
| Large State of Tennessee, Department of Treasury | $569,421 | 0.07% | 12,682 | Shares | 2026-08-14 | |
| Large Thrivent Financial for Lutherans Registered adviser | $567,042 | 0.06% | 12,629 | Shares | 2026-08-14 | |
| Small AdvisorShares Investments LLC Registered adviser | $565,740 | 0.06% | 12,600 | Shares | 2026-08-11 | |
| Large JACOBS LEVY EQUITY MANAGEMENT, INC Registered adviser | $565,425 | 0.06% | 12,593 | Shares | 2026-08-14 | |
| Mid MANGROVE PARTNERS IM, LLC Registered adviser | $560,621 | 0.06% | 12,486 | Shares | 2026-08-14 |
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