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Livermore
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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.

Q1 2026 vs. Q4 2025

How the institutions holding Koppers Holdings Inc. changed between Q4 2025 and Q1 2026.

All holders in Q1 2026All holders in Q4 2025

13F holders of KOP: Q4 2025 compared with Q1 2026
MeasureQ4 2025Of which not filed for Q1 2026Q1 2026Change
Holders1935204+16
Shares19.3M1.60M19.1M+1.38M (+7.8%)
Value$523.2M$43.4M$738.0M+$258.2M (+53.8%)

5 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (35)

Institutions that held Koppers Holdings Inc. at the end of Q1 2026 but not at the end of Q4 2025.

Institutions new to KOP in Q1 2026
InstitutionSharesValue% of portfolio
Vanguard Capital Management LLC840,446$32.5M0.00%
Vanguard Portfolio Management LLC530,532$20.5M0.00%
Arrowstreet Capital, Limited Partnership162,072$6.27M0.00%
Jane Street Group, LLC146,949$5.68M0.01%
Vanguard Fiduciary Trust Co126,216$4.88M0.00%
Lord, Abbett & Co. LLC90,000$3.48M0.01%
Denali Advisors LLC54,965$2.13M0.24%
Vanguard Global Advisers, LLC46,300$1.79M0.00%
Acadian Asset Management LLC26,835$1.04M0.00%
State Board of Administration of Florida Retirement System24,565$950.2K0.00%
Horizon Investments, LLC18,828$728.3K0.01%
Vident Advisory, LLC15,460$598.0K0.01%
Balyasny Asset Management LLC14,356$555.3K0.00%
Vanguard Asset Management, Ltd12,008$464.5K0.00%
Skopos Labs, Inc.10,982$424.8K0.01%
J. Safra Sarasin Holding AG10,255$396.7K0.01%
EP Wealth Advisors, LLC10,240$396.1K0.00%
Janney Montgomery Scott LLC8,992$348.0K0.00%
HSBC Holdings PLC8,477$323.5K0.00%
DGS Capital Management, LLC8,343$322.7K0.05%
Royce & Associates LP8,237$318.6K0.00%
Quadrature Capital Ltd7,429$287.4K0.00%
Baird Financial Group, Inc.7,385$285.7K0.00%
Envestnet Asset Management Inc7,133$275.9K0.00%
Atria Investments LLC6,987$270.3K0.00%
D.B. Root & Company, LLC5,705$220.7K0.05%
Arizona State Retirement System5,388$208.4K0.00%
Yousif Capital Management, LLC5,251$203.1K0.00%
Manufacturers Life Insurance Company, The5,180$200.4K0.00%
Vanguard Investments Australia, Ltd.4,562$176.5K0.00%
SG Americas Securities, LLC4,246$164.0K0.00%
Kilter Group LLC60$2.32K0.00%
Root Financial Partners, LLC50$1.93K0.00%
Keating Financial Advisory Services, Inc.49$1.90K0.00%
Gilpin Wealth Management, LLC2$780.00%

Sold out (19)

Institutions that held Koppers Holdings Inc. at the end of Q4 2025 and filed for Q1 2026 without it.

Institutions that sold out of KOP in Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Two Sigma Advisers, LP74,800$2.03M
ExodusPoint Capital Management, LP42,553$1.15M
Citadel Advisors LLC38,241$1.04M
Point72 Asset Management, L.P.35,116$950.9K
Dynamic Technology Lab Private Ltd29,423$797.0K
Supplemental Annuity Collective Trust of NJ24,000$649.9K
CWA Asset Management Group, LLC19,861$537.8K
Quest Partners LLC18,671$505.6K
Verition Fund Management LLC16,470$446.0K
Teacher Retirement System of Texas13,309$360.4K
Jump Financial, LLC11,907$322.4K
Y-Intercept (Hong Kong) Ltd9,465$256.3K
Ci Investments Inc.8,000$216.6K
Gsa Capital Partners LLP7,838$212.0K
Vestcor Inc7,294$198.0K
Canada Pension Plan Investment Board1,800$48.7K
Danske Bank A/S500$13.5K
Simplex Trading, LLC275$7.45K
Optiver Holding B.V.72$1.95K

Not filed for Q1 2026 yet (5)

Institutions that held Koppers Holdings Inc. at the end of Q4 2025 and haven't filed a 13F for Q1 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding KOP in Q4 2025 that haven't filed for Q1 2026
InstitutionShares, Q4 2025Value, Q4 2025
Vanguard Group Inc1,540,012$41.7M
Brandywine Global Investment Management, LLC44,880$1.22M
Comerica Bank15,530$420.6K
EMC Capital Management3,080$83.0K
CIBC Private Wealth Group, LLC60$1.63K