KOP Koppers Holdings Inc.
Koppers Holdings Inc. (KOP) Institutional Ownership
What the institutions did with KOP last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.
Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.
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Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.
Largest holders
| Manager | Shares | % of reported |
|---|---|---|
| BlackRock, Inc. | 3.0M | 15.7% |
| Simcoe Capital Management, LLC | 1.4M | 7.3% |
| DIMENSIONAL FUND ADVISORS LP | 1.2M | 6.4% |
| PZENA INVESTMENT MANAGEMENT LLC | 1.1M | 5.5% |
| FULLER & THALER ASSET MANAGEMENT, INC. | 943.3K | 4.9% |
| LSV ASSET MANAGEMENT | 941.9K | 4.9% |
| AMERICAN CENTURY COMPANIES INC | 848.1K | 4.4% |
| VANGUARD CAPITAL MANAGEMENT LLC | 812.6K | 4.2% |
| STATE STREET CORP | 804.6K | 4.1% |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 539.0K | 2.8% |
| GEODE CAPITAL MANAGEMENT, LLC | 483.4K | 2.5% |
| Quaker Capital Investments, LLC | 408.6K | 2.1% |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 384.1K | 2.0% |
| Invesco Ltd. | 332.6K | 1.7% |
| AMERIPRISE FINANCIAL INC | 285.7K | 1.5% |
| TWO SIGMA INVESTMENTS, LP | 266.1K | 1.4% |
| NORTHERN TRUST CORP | 253.5K | 1.3% |
| MORGAN STANLEY | 242.9K | 1.3% |
| Dana Investment Advisors, Inc. | 231.4K | 1.2% |
| Bank of New York Mellon Corp | 222.6K | 1.1% |
| CSM Advisors, LLC | 194.3K | 1.0% |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | 189.2K | 1.0% |
| GOLDMAN SACHS GROUP INC | 158.8K | 0.8% |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC | 153.7K | 0.8% |
| HUNTINGTON NATIONAL BANK | 146.6K | 0.8% |
Largest changes
| Manager | Action | Previous | Current | Change |
|---|---|---|---|---|
| Simcoe Capital Management, LLC | Increased | 944.4K | 1.4M | +471.7K |
| AMERICAN CENTURY COMPANIES INC | Increased | 535.0K | 848.1K | +313.1K |
| TWO SIGMA INVESTMENTS, LP | Reduced | 417.5K | 266.1K | -151.5K |
| PZENA INVESTMENT MANAGEMENT LLC | Reduced | 1.2M | 1.1M | -148.1K |
| Invesco Ltd. | Increased | 185.6K | 332.6K | +147.0K |
| Pacer Advisors, Inc. | New | 0 | 114.1K | +114.1K |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | Reduced | 477.9K | 384.1K | -93.8K |
| JANE STREET GROUP, LLC | Reduced | 146.9K | 54.0K | -92.9K |
| LORD, ABBETT & CO. LLC | Sold Out | 90.0K | 0 | -90.0K |
| HRT FINANCIAL LP | Reduced | 85.8K | 12.5K | -73.3K |
| Russell Investments Group, Ltd. | Reduced | 183.2K | 129.7K | -53.5K |
| STATE STREET CORP | Increased | 752.3K | 804.6K | +52.3K |
| MILLENNIUM MANAGEMENT LLC | Sold Out | 52.0K | 0 | -52.0K |
| Quaker Capital Investments, LLC | Reduced | 457.9K | 408.6K | -49.3K |
| DIMENSIONAL FUND ADVISORS LP | Increased | 1.2M | 1.2M | +45.9K |
| Waterfront Wealth Inc. | Sold Out | 41.5K | 0 | -41.5K |
| DENALI ADVISORS LLC | Increased | 55.0K | 96.1K | +41.1K |
| Numerai GP LLC | Sold Out | 36.3K | 0 | -36.3K |
| SEI INVESTMENTS CO | Reduced | 70.0K | 33.8K | -36.2K |
| FULLER & THALER ASSET MANAGEMENT, INC. | Reduced | 978.6K | 943.3K | -35.3K |
| JPMORGAN CHASE & CO | Increased | 90.7K | 122.4K | +31.7K |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Sold Out | 31.6K | 0 | -31.6K |
| Trexquant Investment LP | Sold Out | 29.5K | 0 | -29.5K |
| VANGUARD CAPITAL MANAGEMENT LLC | Reduced | 840.4K | 812.6K | -27.8K |
| ARROWSTREET CAPITAL, LIMITED PARTNERSHIP | Increased | 162.1K | 189.2K | +27.1K |
| Engineers Gate Manager LP | Reduced | 38.4K | 11.9K | -26.5K |
| AMERIPRISE FINANCIAL INC | Increased | 261.8K | 285.7K | +23.9K |
| Creative Planning | Increased | 18.4K | 40.2K | +21.8K |
| XTX Topco Ltd | Increased | 24.6K | 46.4K | +21.8K |
| MORGAN STANLEY | Increased | 221.5K | 242.9K | +21.4K |
| Skylands Capital, LLC | Reduced | 21.1K | 175 | -20.9K |
| STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM | Reduced | 24.6K | 5.7K | -18.9K |
| CITIGROUP INC | Reduced | 63.8K | 46.2K | -17.6K |
| AQR CAPITAL MANAGEMENT LLC | Reduced | 95.5K | 78.2K | -17.3K |
| Covestor Ltd | Increased | 32 | 16.0K | +15.9K |
| LSV ASSET MANAGEMENT | Increased | 926.0K | 941.9K | +15.9K |
| GEODE CAPITAL MANAGEMENT, LLC | Increased | 467.6K | 483.4K | +15.8K |
| Balyasny Asset Management L.P. | Sold Out | 14.4K | 0 | -14.4K |
| GOLDMAN SACHS GROUP INC | Increased | 144.8K | 158.8K | +14.0K |
| Campbell & CO Investment Adviser LLC | Increased | 9.3K | 23.2K | +13.9K |
| PRUDENTIAL FINANCIAL INC | Increased | 19.9K | 33.2K | +13.3K |
| AdvisorShares Investments LLC | New | 0 | 12.6K | +12.6K |
| Nuveen, LLC | Reduced | 63.1K | 51.0K | -12.1K |
| Gotham Asset Management, LLC | New | 0 | 11.5K | +11.5K |
| BANK OF AMERICA CORP /DE/ | Reduced | 128.9K | 117.9K | -11.0K |
| NEW YORK STATE COMMON RETIREMENT FUND | Increased | 20.5K | 31.3K | +10.8K |
| STATE OF WISCONSIN INVESTMENT BOARD | Reduced | 33.7K | 23.0K | -10.7K |
| HUNTINGTON NATIONAL BANK | Reduced | 157.1K | 146.6K | -10.5K |
| J. Safra Sarasin Holding AG | Sold Out | 10.3K | 0 | -10.3K |
| Mariner, LLC | Reduced | 20.0K | 10.0K | -10.0K |
| SEIZERT CAPITAL PARTNERS, LLC | Increased | 113.1K | 122.7K | +9.6K |
| INTECH INVESTMENT MANAGEMENT LLC | Increased | 11.4K | 20.8K | +9.3K |
| EntryPoint Capital, LLC | Reduced | 15.5K | 6.7K | -8.9K |
| VANGUARD PORTFOLIO MANAGEMENT LLC | Increased | 530.5K | 539.0K | +8.5K |
| Integrated Quantitative Investments LLC | New | 0 | 8.4K | +8.4K |
| NORTHERN TRUST CORP | Increased | 245.2K | 253.5K | +8.3K |
| WELLS FARGO & COMPANY/MN | Increased | 7.3K | 15.6K | +8.2K |
| ROYCE & ASSOCIATES LP | Sold Out | 8.2K | 0 | -8.2K |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | Reduced | 58.9K | 50.7K | -8.2K |
| RHUMBLINE ADVISERS | Reduced | 57.9K | 49.7K | -8.1K |
13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.