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Institutional Ownership · SEC Form 13F

Who owns NewMarket (NEU)


Which tracked institutional funds hold NEU, how they are positioned, and who is buying versus exiting — from SEC Form 13F-HR filings. See NEU company fundamentals →

Ownership as of the 2026-Q2 13F filings (latest filed 2026-09-22). 13F is disclosed up to 45 days after quarter-end, so the most recent quarter fills in over the following weeks.

390
Institutional holders
6M
Shares held (tracked funds)
60.0%
Of shares outstanding

How tracked funds are positioned

208 tracked funds added shares of NEU or opened a position while 164 sold shares or exited between 2026-Q1 and 2026-Q2 — the funds were divided. When large holders disagree on a name, the funds moving first are sometimes ahead of the story.

Adds and trims are measured by share count, adjusted for stock splits; the dollar figure beside a change is the value of the shares added or sold at the newer filing's price, shown for context only. 44 funds had no complete filing on file for 2026-Q1 or 2026-Q2: no 13F stored, a filing under a fifth the size of the quarter beside it (usually an amendment stored on its own, sometimes a fund that sold most of its holdings), or a first 13F, as when a book moves to a new CIK. They are left out of the new buyers, exits and changes.

A prompt to read the filings, not a verdict. 13F is a quarter-end snapshot disclosed up to 45 days late; a fund adds or exits for mandate, benchmark, and timing reasons that have nothing to do with a view on the stock. This is a starting question, not a signal to trade.

Conviction spread

NEU’s largest tracked holder by dollar value, BlackRock, Inc., sizes it at 0.0% of its own reported 13F book, while the median holder sizes it at 0.0% of theirs — a 0.0pp gap the other way — the median holder sizes NEU more heavily than its largest holder by dollar value does.

Book-share is each fund’s reported value in NEU divided by its whole reported 13F book, so it is comparable across funds of different sizes and is unaffected by stock splits. A higher share means a fund has committed more of its book to the name — a starting question about conviction, not a verdict or a signal to trade.

Institutional & insider positioning

Between 2026-Q1 and 2026-Q2, across 390 tracked filers holding NEU, 208 increased or opened the position and 164 reduced or closed it, by share count adjusted for splits; over the same quarter, there were no open-market insider Form 4s.

This fuses two public signals for the same quarter — how tracked institutions changed their positions and whether insiders bought or sold in the open market. It describes what was filed; it is a starting question, not a verdict or a signal to trade.

New buyers & exits

Funds opening or closing a position in NEU between the 2026-Q1 and 2026-Q2 13F filings, and the largest changes among funds holding it in both. New buyers and exits are counted on fund presence.

Adds and trims are measured by share count, adjusted for stock splits; the dollar figure beside a change is the value of the shares added or sold at the newer filing's price, shown for context only. 44 funds had no complete filing on file for 2026-Q1 or 2026-Q2: no 13F stored, a filing under a fifth the size of the quarter beside it (usually an amendment stored on its own, sometimes a fund that sold most of its holdings), or a first 13F, as when a book moves to a new CIK. They are left out of the new buyers, exits and changes.

New buyers 83

  • JANE STREET GROUP, LLC$15M
  • MACKENZIE FINANCIAL CORP$9M
  • IEQ CAPITAL, LLC$5M
  • BOOTHBAY FUND MANAGEMENT, LLC$4M
  • Edgestream Partners, L.P.$3M
  • SUSQUEHANNA FUNDAMENTAL INVESTMENTS, LLC$2M

Full exits 43

  • Weiss Asset Management LP$13M
  • SCHRODER INVESTMENT MANAGEMENT GROUP$6M
  • ExodusPoint Capital Management, LP$5M
  • BANK OF NOVA SCOTIA$5M
  • FORA Capital, LLC$4M
  • Robeco Institutional Asset Management B.V.$4M

Largest adds

  • AQR CAPITAL MANAGEMENT LLC$120M
  • Gotham Asset Management, LLC$74M
  • Boston Partners$58M
  • BlackRock, Inc.$57M
  • AMERICAN CENTURY COMPANIES INC$32M
  • LONDON CO OF VIRGINIA$22M

Largest trims

  • MILLENNIUM MANAGEMENT LLC$43M
  • Caisse de depot et placement du Quebec$33M
  • UBS Group AG$31M
  • VANGUARD PORTFOLIO MANAGEMENT LLC$27M
  • LOS ANGELES CAPITAL MANAGEMENT LLC$24M
  • CITADEL ADVISORS LLC$20M

Institutional holders

One row per tracked fund, most shares held first (every row is from one quarter; reported value breaks ties). “% of value” is the fund’s share of this security’s tracked institutional value — not of shares outstanding.

FundSharesReported value% of valueQuarter
BlackRock, Inc. added703,123$556M12.9%2026-Q2
LONDON CO OF VIRGINIA added488,482$387M9.0%2026-Q2
VANGUARD PORTFOLIO MANAGEMENT LLC trimmed416,063$329M7.7%2026-Q2
VANGUARD CAPITAL MANAGEMENT LLC trimmed348,834$276M6.4%2026-Q2
Boston Partners added323,902$256M6.0%2026-Q2
AQR CAPITAL MANAGEMENT LLC added270,011$214M5.0%2026-Q2
STATE STREET CORP added234,065$186M4.3%2026-Q2
AMERICAN CENTURY COMPANIES INC added209,436$166M3.9%2026-Q2
DIMENSIONAL FUND ADVISORS LP added205,661$163M3.8%2026-Q2
GEODE CAPITAL MANAGEMENT, LLC added190,942$151M3.5%2026-Q2
Gotham Asset Management, LLC added130,865$104M2.4%2026-Q2
CHARLES SCHWAB INVESTMENT MANAGEMENT INC trimmed102,184$81M1.9%2026-Q2
MORGAN STANLEY added98,334$78M1.8%2026-Q2
Caisse de depot et placement du Quebec trimmed91,650$73M1.7%2026-Q2
PRICE T ROWE ASSOCIATES INC /MD/ added85,978$68M1.6%2026-Q2
NORTHERN TRUST CORP added82,458$65M1.5%2026-Q2
NORGES BANK added82,266$65M1.5%2026-Q2
GOLDMAN SACHS GROUP INC added73,501$58M1.4%2026-Q2
Invesco Ltd. added73,081$58M1.3%2026-Q2
Bank of New York Mellon Corp trimmed71,085$56M1.3%2026-Q2
BANK OF AMERICA CORP /DE/ added60,849$48M1.1%2026-Q2
UBS Group AG trimmed59,120$47M1.1%2026-Q2
JPMORGAN CHASE & CO trimmed55,231$44M1.0%2026-Q2
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP added54,629$43M1.0%2026-Q2
VANGUARD FIDUCIARY TRUST CO trimmed48,244$38M0.9%2026-Q2
JONES FINANCIAL COMPANIES LLLP added47,595$38M0.9%2026-Q2
FIRST TRUST ADVISORS LP added44,373$35M0.8%2026-Q2
DAVENPORT & Co LLC added40,855$32M0.8%2026-Q2
ENVESTNET ASSET MANAGEMENT INC trimmed34,157$27M0.6%2026-Q2
MILLENNIUM MANAGEMENT LLC trimmed31,763$25M0.6%2026-Q2
Allianz Asset Management GmbH trimmed31,379$25M0.6%2026-Q2
HB Wealth Management, LLC added30,269$24M0.6%2026-Q2
Retirement Systems of Alabama trimmed29,095$23M0.5%2026-Q2
WELLS FARGO & COMPANY/MN added26,714$21M0.5%2026-Q2
FEDERATED HERMES, INC. added24,224$19M0.4%2026-Q2
RHUMBLINE ADVISERS trimmed22,644$18M0.4%2026-Q2
LOS ANGELES CAPITAL MANAGEMENT LLC trimmed21,989$17M0.4%2026-Q2
JANE STREET GROUP, LLC new18,784$15M0.3%2026-Q2
ROYAL BANK OF CANADA added17,719$14M0.3%2026-Q2
PRINCIPAL FINANCIAL GROUP INC trimmed17,322$14M0.3%2026-Q2
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC trimmed17,194$14M0.3%2026-Q2
Swiss National Bank trimmed15,100$12M0.3%2026-Q2
GAMCO INVESTORS, INC. ET AL14,500$11M0.3%2026-Q2
CITIGROUP INC added13,283$11M0.2%2026-Q2
Quantinno Capital Management LP added13,155$10M0.2%2026-Q2
Susquehanna Portfolio Strategies, LLC added13,132$10M0.2%2026-Q2
Nuveen, LLC added12,790$10M0.2%2026-Q2
AMERIPRISE FINANCIAL INC trimmed12,747$10M0.2%2026-Q2
VOYA INVESTMENT MANAGEMENT LLC trimmed12,012$10M0.2%2026-Q2
Illinois Municipal Retirement Fund added11,731$9M0.2%2026-Q2
Mariner, LLC added11,163$9M0.2%2026-Q2
MACKENZIE FINANCIAL CORP new10,759$9M0.2%2026-Q2
Legal & General Group Plc trimmed10,735$8M0.2%2026-Q2
Allspring Global Investments Holdings, LLC trimmed10,701$8M0.2%2026-Q2
SEI INVESTMENTS CO trimmed10,587$8M0.2%2026-Q2
O'SHAUGHNESSY ASSET MANAGEMENT, LLC added10,387$8M0.2%2026-Q2
RENAISSANCE TECHNOLOGIES LLC trimmed9,932$8M0.2%2026-Q2
RAYMOND JAMES FINANCIAL INC trimmed9,140$7M0.2%2026-Q2
ALLIANCEBERNSTEIN L.P. trimmed9,019$6M0.1%2026-Q2
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM trimmed8,996$7M0.2%2026-Q2
MERCER GLOBAL ADVISORS INC /ADV trimmed8,620$7M0.2%2026-Q2
BNP PARIBAS FINANCIAL MARKETS added8,142$6M0.1%2026-Q2
SCS Capital Management LLC added7,613$6M0.1%2026-Q2
GABELLI FUNDS LLC7,400$6M0.1%2026-Q2
FRANKLIN RESOURCES INC trimmed7,147$6M0.1%2026-Q2
VAN ECK ASSOCIATES CORP trimmed6,735$5M0.1%2026-Q2
VANGUARD ASSET MANAGEMENT, Ltd added6,461$5M0.1%2026-Q2
CLIFFORD SWAN INVESTMENT COUNSEL LLC trimmed6,400$5M0.1%2026-Q2
ASSETMARK, INC added6,357$5M0.1%2026-Q2
Cerity Partners LLC added6,201$5M0.1%2026-Q2
Creative Planning added6,034$5M0.1%2026-Q2
XTX Topco Ltd trimmed6,001$5M0.1%2026-Q2
IEQ CAPITAL, LLC new5,730$5M0.1%2026-Q2
Atlantic Union Bankshares Corp5,652$4M0.1%2026-Q2
MANUFACTURERS LIFE INSURANCE COMPANY, THE added5,503$4M0.1%2026-Q2
RITHOLTZ WEALTH MANAGEMENT added5,481$4M0.1%2026-Q2
M&T Bank Corp trimmed5,016$4M0.1%2026-Q2
Russell Investments Group, Ltd. added4,904$4M0.1%2026-Q2
Union Heritage Capital, LLC4,808$4M0.1%2026-Q2
Engineers Gate Manager LP trimmed4,668$4M0.1%2026-Q2
Advisors Asset Management, Inc. added4,486$4M0.1%2026-Q2
BOOTHBAY FUND MANAGEMENT, LLC new4,456$4M0.1%2026-Q2
Universal- Beteiligungs- und Servicegesellschaft mbH trimmed4,347$3M0.1%2026-Q2
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.4,100$3M0.1%2026-Q2
Squarepoint Ops LLC trimmed3,983$3M0.1%2026-Q2
NEUBERGER BERMAN GROUP LLC trimmed3,977$3M0.1%2026-Q2
LPL Financial LLC added3,955$3M0.1%2026-Q2
Edgestream Partners, L.P. new3,822$3M0.1%2026-Q2
D. E. Shaw & Co., Inc. trimmed3,760$3M0.1%2026-Q2
Salomon & Ludwin, LLC3,740$3M0.1%2026-Q2
NewEdge Wealth, LLC added3,684$3M0.1%2026-Q2
MetLife Investment Management, LLC trimmed3,653$3M0.1%2026-Q2
ING GROEP NV trimmed3,434$3M0.1%2026-Q2
Clearstead Advisors, LLC added3,350$3M0.1%2026-Q2
MML INVESTORS SERVICES, LLC trimmed3,344$3M0.1%2026-Q2
Jupiter Topco LLC3,223$3M0.1%2026-Q2
TD Asset Management Inc trimmed3,200$3M0.1%2026-Q2
North Forty Two & Co. trimmed3,150$2M0.1%2026-Q2
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM added3,146$2M0.1%2026-Q2
TEACHER RETIREMENT SYSTEM OF TEXAS added3,019$2M0.1%2026-Q2

Ownership over time

Tracked institutional holder count and total shares held by filing quarter (independent scales). The curated-era tail and any mid-ingest latest quarter are handled honestly — a partial quarter is not drawn as a collapse.

HoldersTotal shares

Reading this table

Funds hold the same stock for different reasons — an index fund “holds” almost everything, an active manager sizes a name to a mandate and a benchmark, and each fund entered at its own price and time. Because 13F is filed up to 45 days after quarter-end, every row is a backward-looking snapshot; a manager may have traded since. Share-class siblings (a company’s A and C shares) are rolled up to one line so a dual-class name is never double-counted. Compare like-for-like. A large holder is not an endorsement, and a fund exiting is not a warning — this is a starting question, not a verdict.

About 13F filings

A Form 13F is a quarterly disclosure that institutional investment managers with over $100 million in US-listed equities must file with the SEC. In plain English: it is a snapshot of the long stock positions a fund held at the end of a quarter. It covers long US-listed equities only — not short positions, options, cash, or private holdings — and the funds shown are the large sample we track, not the complete 13F universe.

Learn how to read institutional ownership