KOPPERS HOLDINGS INC (KOP) Institutional Shareholders
KOPPERS HOLDINGS INC (KOP) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $818.58M in KOP holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of KOP tracked by InsiderSet, reporting ownership valued at approximately $136.84M in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $143.66M, representing an estimated gain of +4.99% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 61% of the total disclosed KOP value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Simcoe Capital Management, Llc, Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in KOPPERS HOLDINGS INC (KOP).
This page ranks the largest institutional KOP shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
216
Total Reported Value
$818.58M
Largest Holder
Blackrock, Inc.
Largest Position
$136.84M
Insider Transactions (90d)
10
Latest Filing Quarter
Q2 2026
New Institutional Positions
59
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.00% | 3,047,603 | $136,837,375 | $143,664,005 | +$6,826,630 | +4.99% | |
| Simcoe Capital Management, Llc | 12.34% | 1,416,160 | $63,585,584 | $66,757,782 | +$3,172,198 | +4.99% | |
| Dimensional Fund Advisors Lp | 0.01% | 1,237,249 | $55,553,509 | $58,323,918 | +$2,770,409 | +4.99% | |
| Hancock Classic Value | Richard Pzena | 0.14% | 1,061,285 | $47,651,697 | $50,028,975 | +$2,377,278 | +4.99% |
| Fuller & Thaler Asset Management, Inc. | 0.12% | 943,279 | $42,353,233 | $44,466,172 | +$2,112,939 | +4.99% | |
| American Century Companies Inc | 0.02% | 848,068 | $38,078,253 | $39,977,926 | +$1,899,673 | +4.99% | |
| Vanguard Capital Management Llc | 0.00% | 812,629 | $36,487,042 | $38,307,331 | +$1,820,289 | +4.99% | |
| State Street Corp | 0.00% | 804,553 | $36,124,430 | $37,926,628 | +$1,802,198 | +4.99% | |
| Vanguard Portfolio Management Llc | 0.00% | 539,047 | $24,203,210 | $25,410,676 | +$1,207,466 | +4.99% | |
| Geode Capital Management, Llc | 0.00% | 483,417 | $21,708,145 | $22,788,277 | +$1,080,132 | +4.98% | |
| Quaker Capital Investments, Llc | 5.02% | 408,555 | $18,344,120 | $19,259,283 | +$915,163 | +4.99% | |
| Charles Schwab Investment Management Inc | 0.00% | 384,122 | $17,247,078 | $18,107,511 | +$860,433 | +4.99% | |
| Sixth Street Partners Management Company, L.P. | 0.00% | 384,122 | $17,247,078 | $18,107,511 | +$860,433 | +4.99% | |
| Invesco Ltd. | 0.00% | 332,605 | $14,933,965 | $15,679,000 | +$745,035 | +4.99% | |
| Ameriprise Financial Inc | 0.00% | 285,656 | $12,825,943 | $13,465,824 | +$639,881 | +4.99% | |
| Two Sigma Investments, Lp | 0.01% | 266,052 | $11,945,735 | $12,541,691 | +$595,956 | +4.99% | |
| Northern Trust Corp | 0.00% | 253,481 | $11,381,298 | $11,949,094 | +$567,796 | +4.99% | |
| Morgan Stanley | 0.00% | 242,924 | $10,907,295 | $11,451,437 | +$544,142 | +4.99% | |
| Dana Investment Advisors, Inc. | 0.27% | 231,399 | $10,389,815 | $10,908,149 | +$518,334 | +4.99% | |
| Bank Of New York Mellon Corp | 0.00% | 222,570 | $9,993,403 | $10,491,950 | +$498,547 | +4.99% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 189,200 | $8,495,080 | $8,918,888 | +$423,808 | +4.99% | |
| Goldman Sachs Group Inc | 0.00% | 158,809 | $7,130,524 | $7,486,256 | +$355,732 | +4.99% | |
| Bridgeway Capital Management, Llc | 0.12% | 153,740 | $6,902,926 | $7,247,304 | +$344,378 | +4.99% | |
| Huntington National Bank | 0.03% | 146,587 | $6,581,756 | $6,910,111 | +$328,355 | +4.99% | |
| Principal Financial Group Inc | 0.00% | 136,719 | $6,138,684 | $6,444,934 | +$306,250 | +4.99% | |
| Universal- Beteiligungs- Und Servicegesellschaft Mbh | 0.01% | 130,584 | $5,863,222 | $6,155,730 | +$292,508 | +4.99% | |
| Russell Investments Group, Ltd. | 0.01% | 129,720 | $5,824,476 | $6,115,001 | +$290,525 | +4.99% | |
| Vanguard Fiduciary Trust Co | 0.00% | 125,938 | $5,654,616 | $5,936,717 | +$282,101 | +4.99% | |
| Jpmorgan Chase & Co | 0.00% | 122,354 | $5,549,978 | $5,767,768 | +$217,790 | +3.92% | |
| Seizert Capital Partners, Llc | 0.23% | 122,722 | $5,510,218 | $5,785,115 | +$274,897 | +4.99% | |
| Bank Of America Corp | 0.00% | 117,916 | $5,294,429 | $5,558,560 | +$264,131 | +4.99% | |
| O'Shaughnessy Asset Management, Llc | 0.02% | 105,366 | $4,730,933 | $4,966,953 | +$236,020 | +4.99% | |
| Denali Advisors Llc | 0.43% | 96,092 | $4,314,531 | $4,529,777 | +$215,246 | +4.99% | |
| Santori & Peters, Inc. | 1.06% | 83,834 | $3,764,147 | $3,951,935 | +$187,788 | +4.99% | |
| Kestrel Investment Management Corp | 2.04% | 83,450 | $3,746,905 | $3,933,833 | +$186,928 | +4.99% | |
| Empowered Funds, Llc | 0.02% | 96,573 | $3,735,444 | $4,552,451 | +$817,007 | +21.87% | |
| Aqr Capital Management Llc | 0.00% | 78,205 | $3,511,425 | $3,686,584 | +$175,159 | +4.99% | |
| Jb Capital Partners Lp | 0.54% | 78,101 | $3,506,735 | $3,681,681 | +$174,946 | +4.99% | |
| Public Sector Pension Investment Board | 0.01% | 66,064 | $2,966,274 | $3,114,257 | +$147,983 | +4.99% | |
| First Trust Advisors Lp | 0.00% | 65,533 | $2,942,431 | $3,089,226 | +$146,795 | +4.99% | |
| Federated Hermes, Inc. | 0.00% | 62,781 | $2,818,867 | $2,959,496 | +$140,629 | +4.99% | |
| Ironwood Investment Management Llc | 0.90% | 58,116 | $2,609,408 | $2,739,588 | +$130,180 | +4.99% | |
| Villanova Investment Management Co Llc | 2.38% | 55,835 | $2,506,992 | $2,632,062 | +$125,070 | +4.99% | |
| Jane Street Group, Llc | 0.00% | 54,010 | $2,425,049 | $2,546,031 | +$120,982 | +4.99% | |
| Nuveen, Llc | 0.00% | 51,023 | $2,290,904 | $2,405,224 | +$114,320 | +4.99% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 58,902 | $2,278,329 | $2,776,640 | +$498,311 | +21.87% | |
| Rhumbline Advisers | 0.00% | 49,724 | $2,232,592 | $2,343,989 | +$111,397 | +4.99% | |
| Xtx Topco Ltd | 0.03% | 46,434 | $2,084,887 | $2,188,899 | +$104,012 | +4.99% | |
| Vanguard Global Advisers, Llc | 0.00% | 46,300 | $2,078,870 | $2,182,582 | +$103,712 | +4.99% | |
| Citigroup Inc | 0.00% | 46,174 | $2,073,214 | $2,176,642 | +$103,428 | +4.99% |
Frequently asked questions about KOP
Who owns the most KOP stock?
The largest holders of KOP are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for KOPPERS HOLDINGS INC (KOP).
Is KOP widely held by superinvestors?
Many widely followed stocks like KOP appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly KOP is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.