KOPPERS HOLDINGS INC (KOP) Top 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 March 31, 2026. The institutional investors covered on this page collectively reported approximately $678.98M 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 $117.78M in its March 31, 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 $132.92M, representing an estimated gain of +12.85% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 60% of the total disclosed KOP value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Hancock Classic Value, 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
201
Total Reported Value
$678.98M
Largest Holder
Blackrock, Inc.
Largest Position
$117.78M
Insider Transactions (90d)
0
Latest Filing Quarter
Q1 2026
New Institutional Positions
162
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% | 3,045,112 | $117,784,934 | $132,919,139 | +$15,134,205 | +12.85% | |
| Hancock Classic Value | Richard Pzena | 0.15% | 1,209,376 | $46,778,664 | $52,789,262 | +$6,010,598 | +12.85% |
| Dimensional Fund Advisors Lp | 0.01% | 1,191,358 | $46,081,563 | $52,002,777 | +$5,921,214 | +12.85% | |
| Fuller & Thaler Asset Management, Inc. | 0.13% | 978,590 | $37,851,870 | $42,715,454 | +$4,863,584 | +12.85% | |
| Simcoe Capital Management, Llc | 6.78% | 944,430 | $36,530,552 | $41,224,370 | +$4,693,818 | +12.85% | |
| Vanguard Capital Management Llc | 0.00% | 840,446 | $32,508,451 | $36,685,468 | +$4,177,017 | +12.85% | |
| State Street Corp | 0.00% | 752,264 | $29,097,572 | $32,836,324 | +$3,738,752 | +12.85% | |
| American Century Companies Inc | 0.01% | 535,002 | $20,693,877 | $23,352,837 | +$2,658,960 | +12.85% | |
| Vanguard Portfolio Management Llc | 0.00% | 530,532 | $20,520,978 | $23,157,722 | +$2,636,744 | +12.85% | |
| Charles Schwab Investment Management Inc | 0.00% | 477,878 | $18,484,321 | $20,859,375 | +$2,375,054 | +12.85% | |
| Geode Capital Management, Llc | 0.00% | 467,609 | $18,089,169 | $20,411,133 | +$2,321,964 | +12.84% | |
| Quaker Capital Investments, Llc | 4.33% | 457,852 | $17,709,715 | $19,985,240 | +$2,275,525 | +12.85% | |
| Two Sigma Investments, Lp | 0.01% | 417,536 | $16,150,292 | $18,225,446 | +$2,075,154 | +12.85% | |
| Ameriprise Financial Inc | 0.00% | 261,788 | $10,125,942 | $11,427,046 | +$1,301,104 | +12.85% | |
| Northern Trust Corp | 0.00% | 245,163 | $9,482,905 | $10,701,365 | +$1,218,460 | +12.85% | |
| Dana Investment Advisors, Inc. | 0.27% | 235,235 | $9,098,890 | $10,268,008 | +$1,169,118 | +12.85% | |
| Bank Of New York Mellon Corp | 0.00% | 224,256 | $8,674,229 | $9,788,774 | +$1,114,545 | +12.85% | |
| Morgan Stanley | 0.00% | 221,536 | $8,569,065 | $9,670,046 | +$1,100,981 | +12.85% | |
| Invesco Ltd. | 0.00% | 185,586 | $7,178,467 | $8,100,829 | +$922,362 | +12.85% | |
| Russell Investments Group, Ltd. | 0.01% | 183,221 | $7,087,056 | $7,997,597 | +$910,541 | +12.85% | |
| Arrowstreet Capital, Limited Partnership | 0.00% | 162,072 | $6,268,945 | $7,074,443 | +$805,498 | +12.85% | |
| Huntington National Bank | 0.03% | 157,099 | $6,076,589 | $6,857,371 | +$780,782 | +12.85% | |
| Bridgeway Capital Management, Llc | 0.11% | 147,526 | $5,706,306 | $6,439,510 | +$733,204 | +12.85% | |
| Jane Street Group, Llc | 0.01% | 146,949 | $5,683,988 | $6,414,324 | +$730,336 | +12.85% | |
| Goldman Sachs Group Inc | 0.00% | 144,845 | $5,602,618 | $6,322,484 | +$719,866 | +12.85% | |
| Principal Financial Group Inc | 0.00% | 135,586 | $5,244,466 | $5,918,329 | +$673,863 | +12.85% | |
| Universal- Beteiligungs- Und Servicegesellschaft Mbh | 0.01% | 129,850 | $5,022,598 | $5,667,953 | +$645,355 | +12.85% | |
| Bank Of America Corp | 0.00% | 128,948 | $4,987,710 | $5,628,580 | +$640,870 | +12.85% | |
| Vanguard Fiduciary Trust Co | 0.00% | 126,216 | $4,882,035 | $5,509,328 | +$627,293 | +12.85% | |
| Seizert Capital Partners, Llc | 0.20% | 113,135 | $4,376,062 | $4,938,343 | +$562,281 | +12.85% | |
| O'Shaughnessy Asset Management, Llc | 0.02% | 109,854 | $4,249,153 | $4,795,127 | +$545,974 | +12.85% | |
| Empowered Funds, Llc | 0.02% | 96,573 | $3,735,444 | $4,215,411 | +$479,967 | +12.85% | |
| Aqr Capital Management Llc | 0.00% | 95,467 | $3,692,677 | $4,167,135 | +$474,458 | +12.85% | |
| Kestrel Investment Management Corp | 1.93% | 83,450 | $3,227,846 | $3,642,593 | +$414,747 | +12.85% | |
| Santori & Peters, Inc. | 0.95% | 79,006 | $3,055,952 | $3,448,612 | +$392,660 | +12.85% | |
| Jb Capital Partners Lp | 0.52% | 78,101 | $3,020,947 | $3,409,109 | +$388,162 | +12.85% | |
| Public Sector Pension Investment Board | 0.01% | 70,219 | $2,716,071 | $3,065,059 | +$348,988 | +12.85% | |
| Sei Investments Co | 0.00% | 69,979 | $2,706,784 | $3,054,583 | +$347,799 | +12.85% | |
| Federated Hermes, Inc. | 0.00% | 67,853 | $2,624,553 | $2,961,783 | +$337,230 | +12.85% | |
| First Trust Advisors Lp | 0.00% | 64,141 | $2,480,973 | $2,799,755 | +$318,782 | +12.85% | |
| Citigroup Inc | 0.00% | 63,810 | $2,468,171 | $2,785,307 | +$317,136 | +12.85% | |
| Nuveen, Llc | 0.00% | 63,119 | $2,441,443 | $2,755,144 | +$313,701 | +12.85% | |
| Franklin Resources Inc | 0.00% | 62,443 | $2,415,296 | $2,725,637 | +$310,341 | +12.85% | |
| Ironwood Investment Management Llc | 0.96% | 59,416 | $2,298,211 | $2,593,508 | +$295,297 | +12.85% | |
| Ubs Am, A Distinct Business Unit Of Ubs Asset Management Americas Llc | 0.00% | 58,902 | $2,278,329 | $2,571,072 | +$292,743 | +12.85% | |
| Rhumbline Advisers | 0.00% | 57,867 | $2,238,278 | $2,525,895 | +$287,617 | +12.85% | |
| Villanova Investment Management Co Llc | 2.21% | 55,835 | $2,159,698 | $2,437,198 | +$277,500 | +12.85% | |
| Denali Advisors Llc | 0.24% | 54,965 | $2,126,046 | $2,399,222 | +$273,176 | +12.85% | |
| Millennium Management Llc | 0.00% | 52,015 | $2,011,940 | $2,270,455 | +$258,515 | +12.85% | |
| Vanguard Global Advisers, Llc | 0.00% | 46,300 | $1,790,884 | $2,020,995 | +$230,111 | +12.85% |
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.