13F Insight
DOSSIER · 13F Holders · Q1 2026High-convictionMulti-bagger
KOP

Koppers Holding Inc

214 institutions still hold Koppers Holding Inc as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 50060p106·214 13F holders·last filed Mar 31, 2026
Market cap
—
▲ 4.7%
vs prior quarter
13F value held
$518M
77.0% inst. owned
of float
Holders
214
+87 QoQ
filers reporting
Activity
+24 / −30
+1,016 added · −883 reduced
this quarter
Concentration
22.72%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

214 institutions reported KOP in Q1 2026. BlackRock, Inc. leads at 22.7% of the visible book. +87 net new institutions vs prior quarter — accumulation reading.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
BlackRock, Inc.
CIK 0002012383
$118M3.0M0.00%Q1 202602
PZENA INVESTMENT MANAGEMENT LLC
CIK 0001027796
$47M1.2M0.15%Q1 202603
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$46M1.2M0.01%Q1 202604
FULLER & THALER ASSET MANAGEMENT, INC.
CIK 0001082327
$38M979K0.13%Q1 202605
Simcoe Capital Management, LLC
CIK 0001633362
$37M944K6.34%Q1 202606
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$33M840K0.00%Q1 202607
STATE STREET CORP
CIK 0000093751
$29M752K0.00%Q1 202608
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$21M535K0.01%Q1 202609
Vanguard Portfolio Management
CIK 0002100121
$21M531K0.00%Q1 202610
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$18M478K0.00%Q1 202611
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$18M468K0.00%Q1 202612
Quaker Capital Investments, LLC
CIK 0001633648
$18M458K4.33%Q1 202613
TWO SIGMA INVESTMENTS, LP
CIK 0001179392
$16M418K0.01%Q1 202614
AMERIPRISE FINANCIAL INC
CIK 0000820027
$10M262K0.00%Q1 202615
NORTHERN TRUST CORP
CIK 0000073124· Index
$9M245K0.00%Q1 202616
Dana Investment Advisors, Inc.
CIK 0001427514
$9M235K0.27%Q1 202617
Bank of New York Mellon Corp
CIK 0001390777
$9M224K0.00%Q1 202618
MORGAN STANLEY
CIK 0000895421
$9M222K0.00%Q1 202619
Invesco Ltd.
CIK 0000914208
$7M186K0.00%Q1 202620
Russell Investments Group, Ltd.
CIK 0001692234
$7M183K0.01%Q1 2026
Page 1 of 11
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