Koppers Holdings Inc.

KOPNYSE

$46.04+0.85 (+1.88%)as of Oct 2, 2026

Legend

Insider buy

Insider sell

Congress buy

Congress sell

Hedge Funds
bought vs soldGreener markers show more buyers; redder markers show more sellers.

Company share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size.

Insider buy
Insider sell
Congress buy
Congress sell
Hedge Funds bought vs sold

Share activityNet buybacksNo changeNet dilution

Marker size reflects transaction size. Greener fund markers mean more buyers.

Insider Buy
Insider Sell
Congress Buy
Congress Sell
Hedge funds bought vs sold
BuybackNo changeNet dilution

Koppers Holdings Inc. price and activity chart data

Showing the 1Y range: Oct 2, 2025 to Oct 2, 2026. Price (+70.9%). 0 insider or congressional trades plotted in this window as 0 markers; nearby trades of the same kind are grouped.

Transactions plotted on the price chart
Date	Category	Person	Role	Action	Amount	Change in holding

Largest institutional holders

13F · Q2 2026

Fund	% of company held	Value	% of portfolio	Quarterly activity
BlackRock, Inc.	16.12%	$137M	0.00%	Not reported
Simcoe Capital Management, LLC	7.49%	$63.6M	11.58%	Add 49.95%
Dimensional Fund Advisors LP	6.55%	$55.6M	0.01%	Not reported
Pzena Investment Management LLC	5.61%	$47.7M	0.14%	Reduce 12.25%
Fuller & Thaler Asset Management, Inc.	4.99%	$42.4M	0.12%	Not reported
LSV Asset Management	4.98%	$42.3M	0.08%	Add 1.71%
American Century Companies Inc	4.49%	$38.1M	0.02%	Not reported
Vanguard Capital Management LLC	4.30%	$36.5M	0.00%	Not reported
State Street Corp	4.26%	$36.1M	0.00%	Not reported
Vanguard Portfolio Management LLC	2.85%	$24.2M	0.00%	Not reported
Geode Capital Management, LLC	2.56%	$21.7M	0.00%	Not reported
Quaker Capital Investments, LLC	2.16%	$18.3M	5.02%	Reduce 10.77%
Charles Schwab Investment Management Inc	2.03%	$17.2M	0.00%	Not reported
Invesco Ltd.	1.76%	$14.9M	0.00%	Not reported
Ameriprise Financial Inc	1.51%	$12.8M	0.00%	Not reported
Two Sigma Investments, LP	1.41%	$11.9M	0.01%	Not reported
Northern Trust Corp	1.34%	$11.4M	0.00%	Not reported
Morgan Stanley	1.29%	$10.9M	0.00%	Not reported
Dana Investment Advisors, Inc.	1.22%	$10.4M	0.27%	Reduce 1.63%
Bank of New York Mellon Corp	1.18%	$9.99M	0.00%	Not reported
CSM Advisors, LLC	1.03%	$8.73M	0.19%	Reduce 0.11%
Arrowstreet Capital, Limited Partnership	1.00%	$8.5M	0.00%	Not reported
Goldman Sachs Group Inc	0.84%	$7.13M	0.00%	Not reported
Bridgeway Capital Management, LLC	0.81%	$6.9M	0.12%	Not reported
Huntington National Bank	0.78%	$6.58M	0.03%	Reduce 6.69%
Principal Financial Group Inc	0.72%	$6.14M	0.00%	Not reported
Universal- Beteiligungs- und Servicegesellschaft mbH	0.69%	$5.86M	0.01%	Not reported
Russell Investments Group, Ltd.	0.69%	$5.82M	0.01%	Not reported
Vanguard Fiduciary Trust Co	0.67%	$5.65M	0.00%	Not reported
Seizert Capital Partners, LLC	0.65%	$5.51M	0.23%	Add 8.47%
JPMorgan Chase & Co	0.65%	$5.55M	0.00%	Not reported
Bank of America Corp	0.62%	$5.29M	0.00%	Not reported
Pacer Advisors, Inc.	0.60%	$5.12M	0.01%	New Not reported
Empowered Funds, LLC	0.54%	$4.62M	0.02%	Add 6.43%
Denali Advisors LLC	0.51%	$4.31M	0.43%	Add 74.82%
Santori & Peters, Inc.	0.44%	$3.76M	1.06%	Add 6.11%
Kestrel Investment Management Corp	0.44%	$3.75M	2.04%	Not reported
AQR Capital Management LLC	0.41%	$3.51M	0.00%	Not reported
JB Capital Partners LP	0.41%	$3.51M	0.54%	Not reported
Public Sector Pension Investment Board	0.35%	$2.97M	0.01%	Reduce 5.92%
First Trust Advisors LP	0.35%	$2.94M	0.00%	Add 2.17%
Federated Hermes, Inc.	0.33%	$2.82M	0.00%	Not reported
Ironwood Investment Management LLC	0.31%	$2.61M	0.90%	Reduce 2.19%
Villanova Investment Management Co LLC	0.30%	$2.51M	2.38%	Not reported
Jane Street Group, LLC	0.29%	$2.43M	0.00%	Not reported
Nuveen, LLC	0.27%	$2.29M	0.00%	Not reported
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	0.27%	$2.27M	0.00%	Not reported
Rhumbline Advisers	0.26%	$2.23M	0.00%	Not reported
XTX Topco Ltd	0.25%	$2.08M	0.03%	Not reported
Vanguard Global Advisers, LLC	0.24%	$2.08M	0.00%	Not reported

50 of 198 holders

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