Koppers Holdings Inc.

KOP

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

SEC filings (opens in a new tab)

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.

Q2 2025 vs. Q1 2025

How the institutions holding Koppers Holdings Inc. changed between Q1 2025 and Q2 2025.

All holders in Q2 2025 All holders in Q1 2025

13F holders of KOP: Q1 2025 compared with Q2 2025
Measure	Q1 2025	Of which not filed for Q2 2025	Q2 2025	Change
Holders	185	2	203	+20
Shares	18.9M	243.1K	18.6M	−43.1K (−0.2%)
Value	$530.7M	$6.81M	$599.1M	+$75.2M (+14.3%)

2 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (37)

Institutions that held Koppers Holdings Inc. at the end of Q2 2025 but not at the end of Q1 2025.

Institutions new to KOP in Q2 2025
Institution	Shares	Value	% of portfolio
CSM Advisors, LLC	146,990	$4.72M	0.14%
Gamco Investors, Inc. Et Al	47,514	$1.53M	0.02%
Seizert Capital Partners, LLC	37,012	$1.19M	0.05%
Gsa Capital Partners LLP	27,898	$897.0K	0.06%
Dynamic Technology Lab Private Ltd	27,120	$872.0K	0.12%
Segall Bryant & Hamill, LLC	21,643	$695.8K	0.01%
XTX Topco Ltd	20,417	$656.4K	0.03%
Cubist Systematic Strategies, LLC	19,138	$615.3K	0.01%
Horizon Investments, LLC	18,243	$586.5K	0.01%
Point72 Asset Management, L.P.	16,325	$524.8K	0.00%
HSBC Holdings PLC	14,681	$468.6K	0.00%
Walleye Capital LLC	12,403	$398.8K	0.00%
Creative Planning	11,343	$364.7K	0.00%
Petrus Trust Company, LTA	8,157	$262.2K	0.03%
Bailard, Inc.	8,000	$257.2K	0.01%
Quantinno Capital Management LP	7,377	$237.2K	0.00%
Manufacturers Life Insurance Company, The	7,170	$230.5K	0.00%
Sequoia Financial Advisors, LLC	7,084	$227.8K	0.00%
Walleye Trading LLC	2,151	$69.2K	0.00%
Point72 Asia (Singapore) Pte. Ltd.	1,335	$42.9K	0.01%
Danske Bank A/S	500	$16.1K	0.00%
BNP PARIBAS ASSET MANAGEMENT Holding S.A.	344	$11.0K	0.00%
Versant Capital Management, Inc	249	$8.01K	0.00%
Trust Co of Toledo NA	191	$6.14K	0.00%
Essential Partners LLC	179	$5.75K	0.00%
Signaturefd, LLC	95	$3.05K	0.00%
IFP Advisors, Inc	50	$2.12K	0.00%
Hantz Financial Services, Inc.	53	$2.00K	0.00%
Simplex Trading, LLC	81	$2.00K	0.00%
MAI Capital Management	59	$1.90K	0.00%
Principal Securities, Inc.	45	$1.45K	0.00%
Clearstead Advisors, LLC	27	$869	0.00%
Jones Financial Companies LLLP	18	$590	0.00%
Atlantic Trust, LLC	10	$322	0.00%
Annis Gardner Whiting Capital Advisors, LLC	8	$258	0.00%
Assetmark, Inc	7	$225	0.00%
Capital Advisors, Ltd. LLC	12	$0	0.00%

Sold out (17)

Institutions that held Koppers Holdings Inc. at the end of Q1 2025 and filed for Q2 2025 without it.

Institutions that sold out of KOP in Q2 2025
Institution	Shares, Q1 2025	Value, Q1 2025
Hennessy Advisors Inc	165,600	$4.64M
HRT Financial LP	89,810	$2.51M
Citadel Advisors LLC	26,815	$750.8K
Janney Montgomery Scott LLC	18,059	$506.0K
Denali Advisors LLC	12,900	$361.2K
Corebridge Financial, Inc.	10,247	$286.9K
Amundi	8,574	$222.9K
SG Americas Securities, LLC	7,358	$206.0K
Brevan Howard Capital Management LP	7,143	$200.0K
Quadrant Capital Group LLC	5,565	$155.8K
Acadian Asset Management LLC	2,843	$79.0K
Byrne Asset Management LLC	1,360	$38.1K
Coldstream Capital Management Inc	191	$5.35K
Stephens Consulting, LLC	15	$420
CoreCap Advisors, LLC	9	$252
Larson Financial Group LLC	5	$140
Boston Private Wealth LLC	3	$84

Not filed for Q2 2025 yet (2)

Institutions that held Koppers Holdings Inc. at the end of Q1 2025 and haven't filed a 13F for Q2 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding KOP in Q1 2025 that haven't filed for Q2 2025
Institution	Shares, Q1 2025	Value, Q1 2025
Foundry Partners, LLC	195,285	$5.47M
Keeley-Teton Advisors, LLC	47,814	$1.34M