Stock Ownership/NEU

NEWMARKET CORP (NEU): Ownership & Insider Activity

Hedge funds and institutional managers reporting a position in NEU · Materials. Based on the most recent 13F filing from each holder, sourced from SEC EDGAR.

Reported Holders
18
13F filers
Aggregate Value
$421.7M
Across holders
Last Price
$936.62
2026-08-24
Sector
Materials
GICS
Quarterly fund activity8 increased9 reduced5 exited
Full exits: VOLORIDGE INVESTMENT MANAGEMENT, LLC, BALYASNY ASSET MANAGEMENT LLC, MARSHALL WACE, LLP, Holocene Advisors, LP, Walleye Capital LLC
Institutional Holders of NEU
↗
18 holders
Manager⇅Type⇅Shares⇅Market Value▼% of Total⇅% of Portfolio⇅Action⇅QoQ Change⇅Quarter⇅
AQR CAPITAL MANAGEMENT LLC
CIK 0001167557
Hedge Fund270K$213.6M50.7%0.1%Added$-718.5MQ2 2026
Gotham Asset Management, LLC
CIK 0001510387
Hedge Fund131K$103.5M24.6%0.2%Added+$73.7MQ2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
CIK 0001164508
Hedge Fund55K$43.2M10.2%0.0%Added+$13KQ2 2026
MILLENNIUM MANAGEMENT LLC
CIK 0001273087
Hedge Fund32K$25.1M6.0%0.0%Reduced$-42.9MQ2 2026
GAMCO INVESTORS, INC. ET AL
CIK 0000807249
Institutional Manager15K$11.5M2.7%0.1%Unchanged+$0Q2 2026
RENAISSANCE TECHNOLOGIES LLC
CIK 0001037389
Hedge Fund10K$7.9M1.9%0.0%Reduced$-18.3MQ2 2026
Squarepoint Ops LLC
CIK 0001642575
Hedge Fund4K$3.2M0.7%0.0%Reduced$-4.1MQ2 2026
SHAW D E & CO INC
CIK 0001009207
Hedge Fund4K$3.0M0.7%0.0%Reduced$-288KQ2 2026
Brevan Howard Capital Management LP
CIK 0001512857
Hedge Fund2K$1.9M0.5%0.0%Added+$1.6MQ2 2026
Man Group plc
CIK 0001637460
Hedge Fund2K$1.8M0.4%0.0%Reduced$-19KQ2 2026
AQR CAPITAL MANAGEMENT LLCAdded
Hedge Fund
$213.6M· 50.7% of total· 0.1% port· 270K sh· $-718.5M QoQ· Q2 2026
Gotham Asset Management, LLCAdded
Hedge Fund
$103.5M· 24.6% of total· 0.2% port· 131K sh· +$73.7M QoQ· Q2 2026
ARROWSTREET CAPITAL, LIMITED PARTNERSHIPAdded
Hedge Fund
$43.2M· 10.2% of total· 0.0% port· 55K sh· +$13K QoQ· Q2 2026
MILLENNIUM MANAGEMENT LLCReduced
Hedge Fund
$25.1M· 6.0% of total· 0.0% port· 32K sh· $-42.9M QoQ· Q2 2026
GAMCO INVESTORS, INC. ET ALUnchanged
Institutional Manager
$11.5M· 2.7% of total· 0.1% port· 15K sh· +$0 QoQ· Q2 2026
RENAISSANCE TECHNOLOGIES LLCReduced
Hedge Fund
$7.9M· 1.9% of total· 0.0% port· 10K sh· $-18.3M QoQ· Q2 2026
Squarepoint Ops LLCReduced
Hedge Fund
$3.2M· 0.7% of total· 0.0% port· 4K sh· $-4.1M QoQ· Q2 2026
SHAW D E & CO INCReduced
Hedge Fund
$3.0M· 0.7% of total· 0.0% port· 4K sh· $-288K QoQ· Q2 2026
Brevan Howard Capital Management LPAdded
Hedge Fund
$1.9M· 0.5% of total· 0.0% port· 2K sh· +$1.6M QoQ· Q2 2026
Man Group plcReduced
Hedge Fund
$1.8M· 0.4% of total· 0.0% port· 2K sh· $-19K QoQ· Q2 2026
Grantham, Mayo, Van Otterloo & Co. LLCReduced
Institutional Manager
$1.5M· 0.4% of total· 0.0% port· 2K sh· $-1.2M QoQ· Q2 2026
CAXTON ASSOCIATES LLPReduced
Hedge Fund
$1.5M· 0.4% of total· 0.0% port· 2K sh· $-298K QoQ· Q2 2026
Schonfeld Strategic Advisors LLCAdded
Hedge Fund
$1.1M· 0.3% of total· 0.0% port· 1K sh· +$429K QoQ· Q2 2026
CITADEL ADVISORS LLCReduced
Hedge Fund
$957K· 0.2% of total· 0.0% port· 1K sh· $-17.2M QoQ· Q2 2026
TWO SIGMA INVESTMENTS, LPAdded
Hedge Fund
$775K· 0.2% of total· 0.0% port· 980 sh· +$16K QoQ· Q2 2026
Bridgewater Associates, LPReduced
Hedge Fund
$565K· 0.1% of total· 0.0% port· 714 sh· $-1.7M QoQ· Q2 2026
Rockefeller Capital Management L.P.Added
Hedge Fund
$358K· 0.1% of total· 0.0% port· 451 sh· +$139K QoQ· Q2 2026
CAPSTONE INVESTMENT ADVISORS, LLCAdded
Hedge Fund
$310K· 0.1% of total· 0.0% port· 392 sh· — QoQ· Q2 2026
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