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 2026 vs. Q1 2026

How the institutions holding Koppers Holdings Inc. changed between Q1 2026 and Q2 2026.

All holders in Q2 2026 All holders in Q1 2026

13F holders of KOP: Q1 2026 compared with Q2 2026
Measure	Q1 2026	Of which not filed for Q2 2026	Q2 2026	Change
Holders	204	5	217	+18
Shares	19.1M	31.3K	19.4M	+346.1K (+1.8%)
Value	$738.0M	$1.21M	$871.2M	+$134.4M (+18.2%)

5 institutions that held it in Q1 2026 haven't filed for Q2 2026 yet. Not filing isn't selling, so the changes leave them out.

New holders (33)

Institutions that held Koppers Holdings Inc. at the end of Q2 2026 but not at the end of Q1 2026.

Institutions new to KOP in Q2 2026
Institution	Shares	Value	% of portfolio
Pacer Advisors, Inc.	114,072	$5.12M	0.01%
AdvisorShares Investments LLC	12,600	$565.7K	0.07%
Gotham Asset Management, LLC	11,522	$517.3K	0.00%
Virginia Retirement Systems Et Al	9,900	$444.5K	0.00%
Jupiter Topco LLC	9,208	$413.4K	0.00%
Integrated Quantitative Investments LLC	8,436	$378.8K	0.06%
Teacher Retirement System of Texas	5,385	$241.8K	0.00%
Swiss Life Asset Management Ltd	4,942	$221.9K	0.00%
Mitsubishi UFJ Trust & Banking Corp	4,821	$216.5K	0.00%
Mirabella Financial Services LLP	4,768	$214.1K	0.02%
Glenmede Trust Co NA	4,621	$207.5K	0.00%
JustInvest LLC	4,571	$205.2K	0.00%
Commonwealth of Pennsylvania Public School Empls Retrmt Sys	4,561	$204.8K	0.00%
Wealth Enhancement Advisory Services, LLC	4,302	$204.6K	0.00%
STRS Ohio	4,400	$197.6K	0.00%
Mirae Asset Global Investments Co., Ltd.	1,232	$55.3K	0.00%
Nykredit A/S	688	$30.9K	0.00%
Assetmark, Inc	679	$30.5K	0.00%
Custom Index Systems, LLC	649	$29.1K	0.01%
SJS Investment Consulting Inc.	109	$4.89K	0.00%
Optiver Holding B.V.	91	$4.09K	0.00%
Barrow Hanley Mewhinney & Strauss LLC	80	$3.59K	0.00%
Quarry LP	61	$2.74K	0.00%
Picton Mahoney Asset Management	60	$2.69K	0.00%
Dogwood Wealth Management LLC	60	$2.69K	0.00%
Wall Street Access Asset Management, LLC	56	$2.52K	0.00%
Larson Financial Group LLC	42	$1.89K	0.00%
Plante Moran Financial Advisors, LLC	29	$1.30K	0.00%
Harbour Investments, Inc.	7	$331	0.00%
Clearstead Advisors, LLC	5	$225	0.00%
JFS Wealth Advisors, LLC	3	$135	0.00%
Davis Capital Management	1	$45	0.00%
Evolution Advisers, Inc.	8	$0	0.00%

Sold out (15)

Institutions that held Koppers Holdings Inc. at the end of Q1 2026 and filed for Q2 2026 without it.

Institutions that sold out of KOP in Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Lord, Abbett & Co. LLC	90,000	$3.48M
Millennium Management LLC	52,015	$2.01M
Waterfront Wealth Inc.	41,495	$1.61M
Numerai GP LLC	36,329	$1.41M
Susquehanna International Group, LLP	31,638	$1.22M
Trexquant Investment LP	29,524	$1.14M
Balyasny Asset Management LLC	14,356	$555.3K
J. Safra Sarasin Holding AG	10,255	$396.7K
Royce & Associates LP	8,237	$318.6K
Quadrature Capital Ltd	7,429	$287.4K
Baird Financial Group, Inc.	7,385	$285.7K
Renaissance Technologies LLC	5,500	$212.7K
Kilter Group LLC	60	$2.32K
Root Financial Partners, LLC	50	$1.93K
MAI Capital Management	13	$503

Not filed for Q2 2026 yet (5)

Institutions that held Koppers Holdings Inc. at the end of Q1 2026 and haven't filed a 13F for Q2 2026. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding KOP in Q1 2026 that haven't filed for Q2 2026
Institution	Shares, Q1 2026	Value, Q1 2026
Skopos Labs, Inc.	10,982	$424.8K
Janus Henderson Group PLC	9,208	$355.5K
DGS Capital Management, LLC	8,343	$322.7K
CWM, LLC	2,800	$108.3K
Sunbelt Securities, Inc.	11	$425