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Koppers (KOP) Institutional Ownership

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$45.39 -0.79 (-1.70%)
Closing price 09/18/2026 03:59 PM Eastern
Extended Trading
$45.31 -0.08 (-0.18%)
As of 09/18/2026 07:30 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Koppers (NYSE:KOP)

Current
Institutional Ownership
Percentage
92.75%
Number of
Institutional Buyers
(last 12 months)
96
Total
Institutional Inflows
(last 12 months)
$294.97M
Number of
Institutional Sellers
(last 12 months)
65
Total
Institutional Outflows
(last 12 months)
$55.80M
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KOP Institutional Buying and Selling by Quarter

Koppers Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026 The Manufacturers Life Insurance Company4,812$216K0.0%-7.1%0.025%
9/9/2026 Engineers Gate Manager LP11,940$536K0.0%-68.9%0.063%
9/9/2026 Squarepoint Ops LLC11,304$508K0.0%+103.3%0.060%
9/8/2026 Arizona State Retirement System5,069$228K0.0%-5.9%0.027%
9/8/2026 Nykredit A S688$31K0.0%N/A0.004%
8/25/2026 VIRGINIA RETIREMENT SYSTEMS ET Al9,900$445K0.0%N/A0.052%
8/21/2026 Nykredit A S688$31K0.0%N/A0.004%
8/19/2026 UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC50,668$2.28M0.0%-14.0%0.268%
8/19/2026 Hsbc Holdings PLC11,095$504K0.0%+30.9%0.059%
8/18/2026 Empowered Funds LLC102,787$4.62M0.0%N/A0.544%
8/18/2026 Public Employees Retirement System of Ohio1,120$50K0.0%N/A0.006%
8/17/2026 Bank of America Corp DE117,916$5.29M0.0%N/A0.623%
8/15/2026 Jupiter Topco LLC9,208$413K0.0%N/A0.049%
8/14/2026 Hsbc Holdings PLC11,095$504K0.0%N/A0.059%
8/14/2026 PDT Partners LLC9,583$430K0.0%N/A0.051%
8/14/2026 Legal & General Group Plc39,723$1.78M0.0%N/A0.210%
8/14/2026 The Manufacturers Life Insurance Company4,812$216K0.0%N/A0.025%
8/13/2026 D.B. Root & Company LLC5,705$256K0.1%N/A0.030%
8/13/2026 Globeflex Capital L P27,190$1.22M0.2%N/A0.144%
8/12/2026 EP Wealth Advisors LLC9,810$440K0.0%N/A0.052%
8/12/2026 JB Capital Partners LP78,101$3.51M0.0%N/A0.413%
8/10/2026 Denali Advisors LLC96,092$4.32M0.4%+74.8%0.508%
8/7/2026 Pzena Investment Management LLC1,061,285$47.65M0.1%N/A5.519%
8/7/2026 BlackRock Inc.3,047,603$136.84M0.0%N/A15.848%
8/7/2026 Deutsche Bank AG17,582$789K0.0%N/A0.091%
8/6/2026 Bank of New York Mellon Corp222,570$9.99M0.0%N/A1.157%
8/6/2026 State of Wyoming8,550$384K0.0%N/A0.044%
8/1/2026 Mirabella Financial Services LLP4,768$214K0.0%N/A0.025%
7/30/2026 Assetmark Inc.679$30K0.0%N/A0.004%
7/29/2026 Swiss Life Asset Management Ltd4,942$222K0.0%N/A0.026%
5/19/2026 Bank of America Corp DE128,948$4.99M0.0%+27.0%0.671%
5/18/2026 Royal Bank of Canada2,485$96K0.0%-91.2%0.013%
5/18/2026 Empowered Funds LLC96,573$3.74M0.0%+8.3%0.502%
5/16/2026 The Manufacturers Life Insurance Company5,180$200K0.0%N/A0.027%
5/16/2026 Quantinno Capital Management LP19,839$767K0.0%+25.1%0.103%
5/16/2026 Lazard Asset Management LLC21,395$828K0.0%-72.9%0.111%
5/14/2026 Renaissance Technologies LLC5,500$213K0.0%-30.4%0.029%
5/14/2026 Gamco Investors INC. ET AL28,814$1.12M0.0%-6.2%0.150%
5/14/2026 Public Employees Retirement System of Ohio2,575$100K0.0%-65.7%0.013%
5/14/2026 Arrowstreet Capital Limited Partnership162,072$6.27M0.0%N/A0.843%
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5/14/2026 Sei Investments Co.69,979$2.71M0.0%+87.5%0.364%
5/14/2026 State of Wyoming6,704$259K0.0%-52.9%0.035%
5/13/2026 First Trust Advisors LP64,141$2.48M0.0%+2.9%0.334%
5/7/2026 Dimensional Fund Advisors LP1,191,358$46.08M0.0%+1.5%6.160%
5/6/2026 Allspring Global Investments Holdings LLC13,694$530K0.0%+11.5%0.071%
5/5/2026 Kestrel Investment Management Corp83,450$3.23M1.9%-0.4%0.431%
5/5/2026 Bank of New York Mellon Corp224,256$8.67M0.0%-3.1%1.160%
5/5/2026 Illinois Municipal Retirement Fund10,201$395K0.0%-8.1%0.053%
5/4/2026 Principal Financial Group Inc.135,586$5.24M0.0%+16.4%0.701%
5/4/2026 J. Safra Sarasin Holding AG10,255$397K0.0%N/A0.053%
5/1/2026 Fifth Third Bancorp15,933$616K0.0%+7,175.3%0.082%
4/30/2026 Hsbc Holdings PLC8,477$323K0.0%N/A0.044%
4/30/2026 Waterfront Wealth Inc.41,495$1.61M0.3%-22.0%0.215%
4/30/2026 Kestra Advisory Services LLC5,297$205K0.0%+25.3%0.027%
4/28/2026DGS Capital Management LLC8,343$323K0.1%N/A0.043%
4/27/2026 New York State Teachers Retirement System3,017$117K0.0%-90.0%0.016%
4/25/2026 Pzena Investment Management LLC1,209,376$46.78M0.2%+0.4%6.253%
4/22/2026 Skylands Capital LLC21,050$814K0.1%-73.9%0.109%
4/22/2026 Janney Montgomery Scott LLC8,992$348K0.0%N/A0.046%
4/21/2026 Louisiana State Employees Retirement System8,700$337K0.0%N/A0.045%
4/16/2026 SG Americas Securities LLC4,246$164K0.0%N/A0.022%
3/9/2026 EMC Capital Management3,080$83K0.0%-15.0%0.016%
2/18/2026 State of Tennessee Department of Treasury15,256$449K0.0%+37.0%0.078%
2/18/2026 Fuller & Thaler Asset Management Inc.1,013,818$27.45M0.1%-8.6%5.169%
2/18/2026 Empowered Funds LLC89,175$2.42M0.0%-24.1%0.455%
2/18/2026 XTX Topco Ltd24,255$657K0.0%N/A0.124%
2/18/2026 Numerai GP LLC17,996$487K0.1%N/A0.092%
2/18/2026 Millennium Management LLC29,559$800K0.0%-59.6%0.151%
2/18/2026 Engineers Gate Manager LP48,228$1.31M0.0%+0.7%0.246%
2/18/2026 Bridgeway Capital Management LLC140,128$3.80M0.1%-34.5%0.714%
2/17/2026 Guggenheim Capital LLC20,959$568K0.0%N/A0.107%
2/17/2026 PDT Partners LLC13,383$362K0.0%-50.0%0.068%
2/17/2026 AQR Capital Management LLC94,986$2.57M0.0%-4.5%0.484%
2/17/2026 Lazard Asset Management LLC79,029$2.14M0.0%+294.2%0.403%
2/17/2026 Trexquant Investment LP35,947$973K0.0%-49.7%0.183%
2/17/2026 Jump Financial LLC11,907$322K0.0%-59.3%0.061%
2/17/2026 Public Employees Retirement System of Ohio7,515$204K0.0%-21.8%0.038%
2/17/2026 Russell Investments Group Ltd.210,209$5.69M0.0%+16.8%1.072%
2/17/2026 State of Wisconsin Investment Board17,418$472K0.0%-57.1%0.089%
2/17/2026 ExodusPoint Capital Management LP42,553$1.15M0.0%+357.7%0.217%
2/17/2026 Royal Bank of Canada28,309$767K0.0%-58.9%0.144%
2/17/2026 Mangrove Partners IM LLC22,732$616K0.1%N/A0.116%
2/16/2026 Squarepoint Ops LLC48,470$1.31M0.0%-46.2%0.247%
2/16/2026 Verition Fund Management LLC16,470$446K0.0%+4.0%0.084%
2/16/2026 Mariner LLC24,016$650K0.0%+13.4%0.122%
2/16/2026 Barclays PLC35,939$973K0.0%+20.8%0.183%
2/16/2026 Bristlecone Value Partners LLC10,650$288K0.3%N/A0.054%
2/13/2026 Kestra Advisory Services LLC4,227$114K0.0%N/A0.022%
2/13/2026 Simcoe Capital Management LLC813,590$22.03M3.9%N/A4.149%
2/13/2026 Quaker Capital Investments LLC474,865$12.86M3.3%+13.5%2.422%
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2/13/2026 Jacobs Levy Equity Management Inc.59,093$1.60M0.0%-33.1%0.301%
2/13/2026 Public Sector Pension Investment Board67,865$1.84M0.0%-11.7%0.346%
2/13/2026 First Trust Advisors LP62,361$1.69M0.0%+0.9%0.318%
2/13/2026 Charles Schwab Investment Management Inc.568,413$15.39M0.0%+4.0%2.899%
2/13/2026 State Street Corp764,324$20.70M0.0%-0.7%3.898%
2/13/2026 Boston Partners22,080$598K0.0%+4.4%0.113%
2/13/2026 Dynamic Technology Lab Private Ltd29,423$797K0.2%+1.1%0.150%
2/13/2026 Wells Fargo & Company MN21,383$579K0.0%+39.9%0.109%
2/13/2026 JB Capital Partners LP70,000$1.90M0.3%N/A0.357%
2/12/2026 HRT Financial LP44,528$1.21M0.0%-53.7%0.227%


KOP Institutional Ownership - Frequently Asked Questions

During the previous two years, 191 institutional investors and hedge funds held shares of Koppers. The most heavily invested institutionals were BlackRock Inc. ($136.84M), Pzena Investment Management LLC ($47.65M), Dimensional Fund Advisors LP ($46.08M), Vanguard Group Inc. ($43.11M), Fuller & Thaler Asset Management Inc. ($27.45M), LSV Asset Management ($25.60M), and Simcoe Capital Management LLC ($22.03M).Learn more on Koppers' institutional investors.

92.75% of Koppers' stock is owned by institutional investors. Learn more on KOP's institutional investor holdings.

Of the 160 institutional investors that purchased Koppers' stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: BlackRock Inc. ($3.05M), Pzena Investment Management LLC ($1.91M), Simcoe Capital Management LLC ($813.59K), LSV Asset Management ($323.88K), Bank of New York Mellon Corp ($229.75K), Principal Financial Group Inc. ($214.29K), and Foundry Partners LLC ($195.29K).

Institutional investors have bought a total of 7,508,118 shares in the last 24 months. This purchase volume represents approximately $294.97M in transactions.

Of the 65 institutional investors that sold Koppers' stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Vanguard Group Inc. ($355.73K), Millennium Management LLC ($271.27K), Fuller & Thaler Asset Management Inc. ($191.77K), Kennedy Capital Management LLC ($86.54K), Bridgeway Capital Management LLC ($84.54K), Royal Bank of Canada ($66.31K), and Skylands Capital LLC ($59.70K).

Institutional investors have sold a total of 1,916,411 shares in the last 24 months. This volume of shares sold represents approximately $55.80M in transactions.


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Institutional ownership data for NYSE:KOP is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 9/9/2026. New 13F filings are added each quarter as they're published.
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