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Koppers Holdings Inc.

KOP
Exchange
NYSE
Industry
Lumber & Wood Products (No Furniture)
SEC CIK
0001315257

In the last 90 days, Koppers Holdings Inc. insiders filed 0 open-market purchases and 6 sales; 217 institutions reported holding it in 13F filings for Q2 2026, worth $871.2M in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in Koppers Holdings Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
200
−2 vs. Q2 2025
Shares held
18.5M
−142.7K (−0.8%) vs. Q2 2025
Total value
$517.8M
−$81.3M (−13.6%) vs. Q2 2025
New holders
24
74 more added
Sold out
26
66 more reduced

1 institution that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting KOP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 200 institutions
Q1 2021: 147 institutionsQ2 2021: 140 institutionsQ3 2021: 141 institutionsQ4 2021: 148 institutionsQ1 2022: 145 institutionsQ2 2022: 142 institutionsQ3 2022: 138 institutionsQ4 2022: 139 institutionsQ1 2023: 153 institutionsQ2 2023: 152 institutionsQ3 2023: 169 institutionsQ4 2023: 180 institutionsQ1 2024: 183 institutionsQ2 2024: 184 institutionsQ3 2024: 191 institutionsQ4 2024: 191 institutionsQ1 2025: 185 institutionsQ2 2025: 203 institutionsQ3 2025: 200 institutionsQ4 2025: 193 institutionsQ1 2026: 204 institutionsQ2 2026: 217 institutions
Value heldQ3 2025: $517.8M
Q1 2021: $657.6MQ2 2021: $625.0MQ3 2021: $614.0MQ4 2021: $589.5MQ1 2022: $521.0MQ2 2022: $416.0MQ3 2022: $385.9MQ4 2022: $515.7MQ1 2023: $645.3MQ2 2023: $631.7MQ3 2023: $752.0MQ4 2023: $997.5MQ1 2024: $1.09BQ2 2024: $698.5MQ3 2024: $676.8MQ4 2024: $610.0MQ1 2025: $530.7MQ2 2025: $599.1MQ3 2025: $517.8MQ4 2025: $523.2MQ1 2026: $738.0MQ2 2026: $871.2M
Institutions holding KOP and their total value by quarter
QuarterHoldersValue
Q2 2026217$871.2M
Q1 2026204$738.0M
Q4 2025193$523.2M
Q3 2025200$517.8M
Q2 2025203$599.1M
Q1 2025185$530.7M
Q4 2024191$610.0M
Q3 2024191$676.8M
Q2 2024184$698.5M
Q1 2024183$1.09B
Q4 2023180$997.5M
Q3 2023169$752.0M
Q2 2023152$631.7M
Q1 2023153$645.3M
Q4 2022139$515.7M
Q3 2022138$385.9M
Q2 2022142$416.0M
Q1 2022145$521.0M
Q4 2021148$589.5M
Q3 2021141$614.0M
Q2 2021140$625.0M
Q1 2021147$657.6M

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Koppers Holdings Inc.; share changes are against Q2 2025.

Institutions holding KOP in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
BlackRock, Inc.3,647,040$102.1M0.00%−41,109−1.1%Reduced
Vanguard Group Inc1,539,485$43.1M0.00%−355,726−18.8%Reduced
Pzena Investment Management LLC1,249,272$35.0M0.11%+1,240+0.1%Added
Dimensional Fund Advisors LP1,178,414$33.0M0.01%+580.0%Added
Fuller & Thaler Asset Management, Inc.1,109,704$31.1M0.11%−2,400−0.2%Reduced
LSV Asset Management954,431$26.7M0.06%+139,600+17.1%Added
State Street Corp769,555$21.5M0.00%−7,711−1.0%Reduced
Charles Schwab Investment Management Inc546,299$15.3M0.00%+90,047+19.7%Added
Geode Capital Management, LLC465,831$13.0M0.00%+2,678+0.6%Added
Quaker Capital Investments, LLC418,365$11.7M3.15%+40,166+10.6%Added
American Century Companies Inc326,739$9.15M0.00%+140,010+75.0%Added
Ameriprise Financial Inc280,705$7.86M0.00%−40,572−12.6%Reduced
Northern Trust Corp251,953$7.05M0.00%−5,204−2.0%Reduced
Dana Investment Advisors, Inc.236,070$6.61M0.19%−1,678−0.7%Reduced
Morgan Stanley220,163$6.16M0.00%−37,515−14.6%Reduced
Bridgeway Capital Management, LLC213,916$5.99M0.13%−10,754−4.8%Reduced
Invesco Ltd.212,194$5.94M0.00%+27,937+15.2%Added
Bank of New York Mellon Corp199,227$5.58M0.00%−7,656−3.7%Reduced
Russell Investments Group, Ltd.179,939$5.04M0.01%+53,002+41.8%Added
Two Sigma Investments, LP175,772$4.92M0.01%+39,194+28.7%Added
Huntington National Bank164,551$4.61M0.03%00.0%Unchanged
CSM Advisors, LLC139,645$3.91M0.11%−7,345−5.0%Reduced
Universal- Beteiligungs- und Servicegesellschaft mbH129,820$3.63M0.01%+129,820New
Empowered Funds, LLC117,563$3.29M0.03%+4,246+3.7%Added
Principal Financial Group Inc110,557$3.10M0.00%−4,834−4.2%Reduced
Bank of America Corp108,362$3.03M0.00%−714−0.7%Reduced
AQR Capital Management LLC99,502$2.79M0.00%+25,728+34.9%Added
HRT Financial LP96,073$2.69M0.01%+96,073New
Squarepoint Ops LLC90,043$2.52M0.01%+25,817+40.2%Added
Jacobs Levy Equity Management, Inc88,370$2.47M0.01%−29,153−24.8%Reduced
Kestrel Investment Management Corp86,750$2.43M1.37%00.0%Unchanged
Ironwood Investment Management LLC82,416$2.31M1.01%00.0%Unchanged
DC Investments Management, LLC80,591$2.26M0.94%−37,211−31.6%Reduced
Two Sigma Advisers, LP79,700$2.23M0.00%+5,900+8.0%Added
Santori & Peters79,006$2.21M0.79%00.0%Unchanged
Goldman Sachs Group Inc77,181$2.16M0.00%+31,722+69.8%Added
Public Sector Pension Investment Board76,863$2.15M0.01%+8,614+12.6%Added
Millennium Management LLC73,138$2.05M0.00%−227,687−75.7%Reduced
Villanova Investment Management Co LLC71,665$2.01M1.39%+23,131+47.7%Added
Trexquant Investment LP71,405$2.00M0.02%+10,873+18.0%Added
Royal Bank of Canada68,796$1.93M0.00%−47,342−40.8%Reduced
Nuveen, LLC66,751$1.87M0.00%−1,229−1.8%Reduced
O'Shaughnessy Asset Management, LLC66,639$1.87M0.01%+8,978+15.6%Added
Federated Hermes, Inc.65,695$1.84M0.00%+408+0.6%Added
Skylands Capital, LLC63,380$1.77M0.25%+21,280+50.5%Added
JPMorgan Chase & Co63,338$1.77M0.00%+1,509+2.4%Added
First Trust Advisors LP61,794$1.73M0.00%+61,794New
Rhumbline Advisers61,248$1.71M0.00%−559−0.9%Reduced
FMR LLC58,683$1.64M0.00%−14,058−19.3%Reduced
Citigroup Inc54,198$1.52M0.00%+29,876+122.8%Added
UBS Asset Management Americas Inc54,151$1.52M0.00%−27,701−33.8%Reduced
Legal & General Group Plc49,558$1.39M0.00%−2,344−4.5%Reduced
Cubist Systematic Strategies, LLC48,390$1.35M0.02%+29,252+152.8%Added
Engineers Gate Manager LP47,896$1.34M0.02%+18,562+63.3%Added
Qube Research & Technologies Ltd44,850$1.26M0.00%−10,501−19.0%Reduced
Gamco Investors, Inc. Et Al41,714$1.17M0.01%−5,800−12.2%Reduced
Brandywine Global Investment Management, LLC40,860$1.14M0.01%+40,860New
State of Wisconsin Investment Board40,565$1.14M0.00%−14,000−25.7%Reduced
BNP Paribas Arbitrage, SA40,300$1.13M0.00%+37,065+1,145.7%Added
Swiss National Bank39,300$1.10M0.00%00.0%Unchanged
Waterfront Wealth Inc.37,687$1.07M0.22%+5,673+17.7%Added
Pacific Ridge Capital Partners, LLC37,808$1.06M0.23%+3,410+9.9%Added
Macquarie Group Ltd37,700$1.06M0.00%00.0%Unchanged
Victory Capital Management Inc37,300$1.04M0.00%+2,100+6.0%Added
Seizert Capital Partners, LLC36,333$1.02M0.04%−679−1.8%Reduced
Y-Intercept (Hong Kong) Ltd32,640$913.9K0.02%+32,640New
New York State Teachers Retirement System30,205$846.0K0.00%−5,776−16.1%Reduced
Voya Investment Management LLC30,134$843.8K0.00%−729−2.4%Reduced
Barclays PLC29,743$832.8K0.00%−11,119−27.2%Reduced
Jump Financial, LLC29,233$818.5K0.01%−15,367−34.5%Reduced
Dynamic Technology Lab Private Ltd29,115$815.0K0.14%+1,995+7.4%Added
Renaissance Technologies LLC27,300$764.4K0.00%+1,300+5.0%Added
Globeflex Capital L P27,190$761.3K0.12%00.0%Unchanged
PDT Partners, LLC26,761$749.3K0.05%+26,761New
EntryPoint Capital, LLC25,921$725.8K0.28%+19,377+296.1%Added
Supplemental Annuity Collective Trust of NJ24,000$672.0K0.18%00.0%Unchanged
Kennedy Capital Management, Inc.21,898$613.1K0.01%−86,537−79.8%Reduced
Mariner, LLC21,186$593.2K0.00%−1,402−6.2%Reduced
Boston Partners21,143$592.0K0.00%+4,534+27.3%Added
Alliancebernstein L.P.20,843$583.6K0.00%−1,940−8.5%Reduced
Price T Rowe Associates Inc20,794$583.0K0.00%+692+3.4%Added
Thrivent Financial for Lutherans20,679$579.0K0.00%−14,151−40.6%Reduced
Prudential Financial Inc20,539$575.1K0.00%−790−3.7%Reduced
Lazard Asset Management LLC20,047$561.3K0.00%+103+0.5%Added
Teacher Retirement System of Texas19,655$550.3K0.00%+7,982+68.4%Added
Campbell & CO Investment Adviser LLC19,529$546.8K0.04%−23,293−54.4%Reduced
California State Teachers Retirement System18,888$528.9K0.00%−247−1.3%Reduced
KLP Kapitalforvaltning AS18,400$515.2K0.00%+14,200+338.1%Added
Hancock Whitney Corp18,368$514.3K0.01%+2,933+19.0%Added
Point72 Asset Management, L.P.17,618$493.3K0.00%+1,293+7.9%Added
Great West Life Assurance Co17,400$483.0K0.00%00.0%Unchanged
D. E. Shaw & Co., Inc.16,485$461.6K0.00%−25,406−60.6%Reduced
Jane Street Group, LLC16,444$460.4K0.00%−7,796−32.2%Reduced
Pathstone Holdings, LLC16,220$454.2K0.00%−809−4.8%Reduced
Balyasny Asset Management LLC16,124$451.5K0.00%+16,124New
Verition Fund Management LLC15,831$443.3K0.00%+4,474+39.4%Added
UBS Group AG15,579$436.2K0.00%+60.0%Added
Wells Fargo & Company15,289$428.1K0.00%+2,468+19.2%Added
Weiss Asset Management LP14,412$403.5K0.01%+14,412New
Deutsche Bank AG14,145$396.1K0.00%+1,876+15.3%Added