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.
Sign in or subscribeLargest 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 | 4.2% |
| 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 |
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.