Koppers Holdings KOP Institutional Ownership

NYSE KOP

$45.27 -0.69 (-1.50%)

At close: Sep 18, 2026 · 4:00 PM EDT

Institutions by Trading Activity

220 Institutions

Increased 109 49.5%

Unchanged 45 20.5%

Reduced 66 30.0%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

103.49%

▲+5.78 pp QoQ

Shares Held by Institutions

19.79Mn

of 19.13Mn outstanding

▲+5.70% QoQ

Shares Outstanding

19.13Mn

-666.67K held outside 13F filers

Institutional Investors

220

filed 13F for Jun 2026

▲+16 vs prior quarter

Net Shares Added (QoQ)

+1.07Mn

accumulated since last quarter

Value of Holdings

$896.10Mn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Koppers Holdings Inc. (NYSE:KOP) is held by 220 institutional investors per 13F filings through June 2026.

These investors collectively held 103.5% of Koppers Holdings's outstanding shares in June 2026, up from 97.7% in March 2026.
They increased total shares held in Koppers Holdings by 5.7% from the prior quarter, while the number of investors in KOP increased 8.37% year over year.
Of these 220 holders, 109 added to their stakes in Koppers Holdings, 66 trimmed positions, and 45 made no changes.
The aggregate institutional position in Koppers Holdings amounted to 19.79Mn shares as of June 2026, up by 1.07Mn shares quarter on quarter, and up 1.12Mn shares year over year.
BlackRock, Inc. is the top holder of Koppers Holdings as of June 30, 2026, with 3.05Mn shares representing 15.93% of outstanding stock.
The biggest buyers of Koppers Holdings for the quarter ending June 2026 included Simcoe Capital Management, LLC (471.73K), Sixth Street Partners Management Company, L.P. (384.12K), AMERICAN CENTURY COMPANIES INC (313.07K), Invesco Ltd. (147.02K), Pacer Advisors, Inc. (114.07K).
Top sellers of KOP stock for the quarter ending June 2026 included TWO SIGMA INVESTMENTS, LP (151.48K), PZENA INVESTMENT MANAGEMENT LLC (148.09K), CHARLES SCHWAB INVESTMENT MANAGEMENT INC (93.76K), JANE STREET GROUP, LLC (92.94K), HRT FINANCIAL LP (73.31K).
Koppers Holdings's 10 largest shareholders as of June 2026 include BlackRock, Inc. (3.05Mn), Simcoe Capital Management, LLC (1.42Mn), DIMENSIONAL FUND ADVISORS LP (1.24Mn), PZENA INVESTMENT MANAGEMENT LLC (1.06Mn), FULLER & THALER ASSET MANAGEMENT, INC. (943.28K), LSV ASSET MANAGEMENT (941.88K), AMERICAN CENTURY COMPANIES INC (848.07K), VANGUARD CAPITAL MANAGEMENT LLC (812.63K), State Street Corp (804.55K), VANGUARD PORTFOLIO MANAGEMENT LLC (539.05K) per Business Quant data.

Form 13F Holdings

220 Institutional Holders

Report period 30 Jun, 2026

Total shares held 19.79Mn

Of outstanding 103.49%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	BlackRock, Inc.	0002012383	3,047,603	15.93%	▲2,491	+0.08%	$136.84Mn
2	Simcoe Capital Management, LLC	0001633362	1,416,160	7.40%	▲471,730	+49.95%	$63.59Mn
3	DIMENSIONAL FUND ADVISORS LP	0000354204	1,237,249	6.47%	▲45,891	+3.85%	$55.55Mn
4	PZENA INVESTMENT MANAGEMENT LLC	0001027796	1,061,285	5.55%	▼148,091	-12.25%	$47.65Mn
5	FULLER & THALER ASSET MANAGEMENT, INC.	0001082327	943,279	4.93%	▼35,311	-3.61%	$42.35Mn
6	LSV ASSET MANAGEMENT	0001050470	941,881	4.92%	▲15,850	+1.71%	$42.29K
7	AMERICAN CENTURY COMPANIES INC	0000748054	848,068	4.43%	▲313,066	+58.52%	$38.08Mn
8	VANGUARD CAPITAL MANAGEMENT LLC	0002100119	812,629	4.25%	▼27,817	-3.31%	$36.49Mn
9	State Street Corp	0000093751	804,553	4.21%	▲52,289	+6.95%	$36.12Mn
10	VANGUARD PORTFOLIO MANAGEMENT LLC	0002100121	539,047	2.82%	▲8,515	+1.60%	$24.20Mn
11	GEODE CAPITAL MANAGEMENT, LLC	0001214717	483,417	2.53%	▲15,808	+3.38%	$21.71Mn
12	Quaker Capital Investments, LLC	0001633648	408,555	2.14%	▼49,297	-10.77%	$18.34Mn
13	Sixth Street Partners Management Company, L.P.	0001812095	384,122	2.01%	▲384,122	0.00%	$17.25Mn
13	CHARLES SCHWAB INVESTMENT MANAGEMENT INC	0000884546	384,122	2.01%	▼93,756	-19.62%	$17.25Mn
14	Invesco Ltd.	0000914208	332,605	1.74%	▲147,019	+79.22%	$14.93Mn
15	Ameriprise Financial Inc	0000820027	285,656	1.49%	▲23,868	+9.12%	$12.83Mn
16	TWO SIGMA INVESTMENTS, LP	0001179392	266,052	1.39%	▼151,484	-36.28%	$11.95Mn
17	Northern Trust Corp	0000073124	253,481	1.33%	▲8,318	+3.39%	$11.38Mn
18	Morgan Stanley	0000895421	242,924	1.27%	▲21,388	+9.65%	$10.91Mn
19	Dana Investment Advisors, Inc.	0001427514	231,399	1.21%	▼3,836	-1.63%	$10.39Mn

Showing 1 to 20 of 220 holders