13F Insight
DOSSIER · 13F Holders · Q1 2026Healthcare · Industrial Organic ChemicalsCheap mega-capRe-rated
NEU

NEWMARKET CORP

407 institutions still hold NEWMARKET CORP as of Q1 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 651587107·Industrial Organic Chemicals·407 13F holders·last filed Mar 31, 2026
Market cap
—
▼ 5.1%
vs prior quarter
13F value held
$2.6B
48.0% inst. owned
of float
Holders
407
+137 QoQ
filers reporting
Activity
+99 / −103
+1,004 added · −813 reduced
this quarter
Concentration
17.96%
BlackRock, Inc. #1
top holder share
AI Holders Summary · Q1 2026

407 institutions reported NEU in Q1 2026. BlackRock, Inc. leads at 18.0% of the visible book. +137 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
$459M717K0.01%Q1 202602
LONDON CO OF VIRGINIA
CIK 0001259887
$296M461K1.82%Q1 202603
Vanguard Portfolio Management
CIK 0002100121
$289M450K0.02%Q1 202604
VANGUARD CAPITAL MANAGEMENT LLC
CIK 0002100119· Index
$227M354K0.01%Q1 202605
Boston Partners
CIK 0001386060
$161M251K0.17%Q1 202606
STATE STREET CORP
CIK 0000093751
$150M234K0.01%Q1 202607
DIMENSIONAL FUND ADVISORS LP
CIK 0000354204· Quasi-passive
$125M195K0.03%Q1 202608
GEODE CAPITAL MANAGEMENT, LLC
CIK 0001214717· Index
$118M185K0.01%Q1 202609
AMERICAN CENTURY COMPANIES INC
CIK 0000748054
$108M169K0.06%Q1 202610
CAISSE DE DEPOT ET PLACEMENT DU QUEBEC
CIK 0000898286
$86M134K0.14%Q1 202611
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
$75M118K0.03%Q1 202612
CHARLES SCHWAB INVESTMENT MANAGEMENT INC
CIK 0000884546· Index
$66M103K0.01%Q1 202613
UBS Group AG
CIK 0001610520
$63M99K0.01%Q1 202614
MORGAN STANLEY
CIK 0000895421
$60M93K0.00%Q1 202615
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
$55M86K0.02%Q1 202616
NORTHERN TRUST CORP
CIK 0000073124· Index
$53M82K0.01%Q1 202617
Bank of New York Mellon Corp
CIK 0001390777
$49M76K0.01%Q1 202618
Invesco Ltd.
CIK 0000914208
$48M75K0.01%Q1 202619
JPMORGAN CHASE & CO
CIK 0000019617
$35M56K0.00%Q1 202620
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
$35M55K0.02%Q1 2026
Page 1 of 21
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