NEU NewMarket Corporation

NYSE
$898.04

NewMarket Corporation (NEU) Institutional Ownership

What the institutions did with NEU last quarter, from their 13F filings. Counting managers rather than shares is the point: a single index fund adding to a position tells you far less than four hundred separate managers all deciding to. Positions as reported for the quarter ended June 30, 2026.

Managers compared
461
filed both this quarter and last
Managers holding
417
+41 on the quarter
Buyers
213
85 opened new
Sellers
183
44 sold out entirely
Buyer share
53.8%
of managers who traded it
Breadth
+7.6
net buyers, as a share of those trading

Every manager below opens. Subscribers can see any firm's whole portfolio — every position, its weight, and what they bought, trimmed and exited last quarter.

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Ownership map

Each block is one manager, sized by shares held and colored by how much they moved the position last quarter. Green added, red cut, grey stood pat.

Cut Unchanged Added Color saturates at ±50%.

Largest holders

Manager Shares % of reported
BlackRock, Inc. 703.1K 11.7%
LONDON CO OF VIRGINIA 488.5K 8.1%
VANGUARD PORTFOLIO MANAGEMENT LLC 416.1K 6.9%
VANGUARD CAPITAL MANAGEMENT LLC 348.8K 5.8%
Boston Partners 323.9K 5.4%
AQR CAPITAL MANAGEMENT LLC 270.0K 4.5%
LSV ASSET MANAGEMENT 237.8K 4.0%
STATE STREET CORP 234.1K 3.9%
AMERICAN CENTURY COMPANIES INC 209.4K 3.5%
DIMENSIONAL FUND ADVISORS LP 205.7K 3.4%
GEODE CAPITAL MANAGEMENT, LLC 190.9K 3.2%
Gotham Asset Management, LLC 130.9K 2.2%
CHARLES SCHWAB INVESTMENT MANAGEMENT INC 102.2K 1.7%
MORGAN STANLEY 98.3K 1.6%
Caisse de depot et placement du Quebec 91.7K 1.5%
PRICE T ROWE ASSOCIATES INC /MD/ 86.0K 1.4%
NORTHERN TRUST CORP 82.5K 1.4%
NORGES BANK 82.3K 1.4%
GOLDMAN SACHS GROUP INC 73.5K 1.2%
Invesco Ltd. 73.1K 1.2%
Bank of New York Mellon Corp 71.1K 1.2%
BANK OF AMERICA CORP /DE/ 60.8K 1.0%
UBS Group AG 59.1K 1.0%
JPMORGAN CHASE & CO 55.2K 0.9%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP 54.6K 0.9%

Largest changes

Manager Action Previous Current Change
AQR CAPITAL MANAGEMENT LLC Increased 118.3K 270.0K +151.7K
Gotham Asset Management, LLC Increased 37.7K 130.9K +93.2K
Boston Partners Increased 251.1K 323.9K +72.8K
MILLENNIUM MANAGEMENT LLC Reduced 86.0K 31.8K -54.3K
Caisse de depot et placement du Quebec Reduced 134.0K 91.7K -42.3K
AMERICAN CENTURY COMPANIES INC Increased 168.6K 209.4K +40.8K
UBS Group AG Reduced 98.8K 59.1K -39.7K
VANGUARD PORTFOLIO MANAGEMENT LLC Reduced 450.5K 416.1K -34.4K
Pacer Advisors, Inc. Reduced 35.7K 2.6K -33.1K
LOS ANGELES CAPITAL MANAGEMENT LLC Reduced 52.0K 22.0K -30.0K
LSV ASSET MANAGEMENT Reduced 266.4K 237.8K -28.6K
LONDON CO OF VIRGINIA Increased 461.0K 488.5K +27.5K
CITADEL ADVISORS LLC Reduced 27.5K 1.2K -26.3K
FEDERATED HERMES, INC. Increased 710 24.2K +23.5K
RENAISSANCE TECHNOLOGIES LLC Reduced 33.1K 9.9K -23.2K
Weiss Asset Management LP Sold Out 21.0K 0 -21.0K
GOLDMAN SACHS GROUP INC Increased 52.7K 73.5K +20.8K
JANE STREET GROUP, LLC New 0 18.8K +18.8K
PRICE T ROWE ASSOCIATES INC /MD/ Increased 70.3K 86.0K +15.7K
JONES FINANCIAL COMPANIES LLLP Increased 33.5K 47.6K +14.1K
FIRST TRUST ADVISORS LP Increased 30.3K 44.4K +14.1K
NATIXIS ADVISORS, LLC Increased 36.2K 50.2K +14.0K
SEI INVESTMENTS CO Reduced 24.4K 10.6K -13.8K
Allianz Asset Management GmbH Reduced 45.2K 31.4K -13.8K
BlackRock, Inc. Reduced 716.7K 703.1K -13.6K
Susquehanna Portfolio Strategies, LLC Increased 815 13.1K +12.3K
DIMENSIONAL FUND ADVISORS LP Increased 194.5K 205.7K +11.2K
BANK OF AMERICA CORP /DE/ Increased 49.9K 60.8K +10.9K
MACKENZIE FINANCIAL CORP New 0 10.8K +10.8K
ROYAL BANK OF CANADA Increased 7.5K 17.7K +10.3K
SCHRODER INVESTMENT MANAGEMENT GROUP Sold Out 9.1K 0 -9.1K
ExodusPoint Capital Management, LP Sold Out 8.3K 0 -8.3K
Mariner, LLC Increased 3.2K 11.2K +8.0K
BANK OF NOVA SCOTIA Sold Out 7.2K 0 -7.2K
BNP PARIBAS FINANCIAL MARKETS Increased 1.2K 8.1K +6.9K
FORA Capital, LLC Sold Out 6.2K 0 -6.2K
GEODE CAPITAL MANAGEMENT, LLC Increased 184.7K 190.9K +6.2K
IEQ CAPITAL, LLC New 0 5.7K +5.7K
Robeco Institutional Asset Management B.V. Sold Out 5.7K 0 -5.7K
VANGUARD CAPITAL MANAGEMENT LLC Reduced 354.3K 348.8K -5.5K
VICTORY CAPITAL MANAGEMENT INC Reduced 7.9K 2.5K -5.4K
Squarepoint Ops LLC Reduced 9.2K 4.0K -5.2K
LAZARD ASSET MANAGEMENT LLC Reduced 6.4K 1.2K -5.2K
Bank of New York Mellon Corp Reduced 76.2K 71.1K -5.2K
CITIGROUP INC Increased 8.3K 13.3K +5.0K
Cerity Partners LLC Increased 1.3K 6.2K +4.9K
MORGAN STANLEY Increased 93.5K 98.3K +4.9K
MARSHALL WACE, LLP Sold Out 4.8K 0 -4.8K
Ensign Peak Advisors, Inc Reduced 7.6K 2.9K -4.7K
FRANKLIN RESOURCES INC Reduced 11.7K 7.1K -4.5K
BOOTHBAY FUND MANAGEMENT, LLC New 0 4.5K +4.5K
Mubadala Investment Co PJSC Sold Out 4.4K 0 -4.4K
XTX Topco Ltd Reduced 10.2K 6.0K -4.2K
Edgestream Partners, L.P. New 0 3.8K +3.8K
HSBC HOLDINGS PLC Sold Out 3.8K 0 -3.8K
Aquatic Capital Management LLC Reduced 4.9K 1.2K -3.7K
O'SHAUGHNESSY ASSET MANAGEMENT, LLC Increased 6.8K 10.4K +3.6K
MERCER GLOBAL ADVISORS INC /ADV Reduced 12.2K 8.6K -3.5K
Balyasny Asset Management L.P. Sold Out 3.5K 0 -3.5K
MARTINGALE ASSET MANAGEMENT L P Reduced 3.9K 497 -3.4K

13F filings are due 45 days after quarter end and cover long positions in U.S.-listed equities only, so this is a lagged and partial picture: shorts, bonds and foreign listings never appear. Options positions are excluded here rather than folded into the share counts. Political ownership is coming.