What is the 13F Pro Quality Score for NEU?

13F Pro ranks NEWMARKET CORP (NEU) on the 13F Pro Quality Score, a 0–100 composite of 32 fundamental signals including return on invested capital, free cash flow consistency, balance-sheet strength, earnings quality, growth durability, and valuation discipline. The score refreshes after each 10-K and 10-Q filing on SEC EDGAR. View NEU's current score at https://13fpro.ai/research/NEU (free sign-up required for the full ranking).

Which hedge funds own the most NEU stock?

Based on the most recent Form 13F-HR filings on SEC EDGAR, the largest reported institutional holders of NEU include BlackRock,, LONDON CO OF VIRGINIA, VANGUARD PORTFOLIO MANAGEMENT. Holdings are reported quarterly within 45 days of quarter-end and updated on https://13fpro.ai/research/NEU as soon as new 13F filings post.

Where does 13F Pro source NEU data?

All NEWMARKET CORP fundamentals and ownership data come directly from SEC EDGAR. NEWMARKET CORP files with the SEC under CIK 1282637. 13F Pro ingests XBRL financial facts from 10-K and 10-Q filings, Form 13F-HR institutional holdings, and Form 4 insider transactions, with no third-party rewrites or estimates.

What sector is NEU in?

NEWMARKET CORP (NEU) is classified in the Materials sector. 13F Pro publishes sector-level fund flow analysis and quality leaders at https://13fpro.ai/research/sector/materials.

What drives NEU's revenue?

Per NEWMARKET CORP's latest 10-Q filed with the SEC on 2026-04-23, the biggest revenue drivers are: Petroleum additives ($609.8M, -5.5% YoY); Specialty materials ($58.1M, +8.2% YoY); All other ($1.8M, +5.2% YoY). Figures are extracted from the filing text and machine-verified against the document. Full breakdown at https://13fpro.ai/research/NEU.

What are NEU's largest expenses?

NEWMARKET CORP's latest 10-Q reports these as the largest expense items: Cost of goods sold ($448.8M, -3.5% YoY); Selling, general, and administrative expenses ($46.0M, +7.1% YoY); Research, development, and testing expenses ($31.6M, -4.1% YoY). Sourced directly from SEC EDGAR filing text for Q1 2026 (quarter ended March 31, 2026).

How often is NEU research updated on 13F Pro?

NEU's fundamentals refresh within hours of each new 10-K or 10-Q filing on SEC EDGAR. Institutional ownership updates after each quarterly 13F filing window. Insider transactions update after each Form 4 filing. The 13F Pro Quality Score recalculates after every fundamentals refresh.

NEWMARKET CORP(NEU)Stock Analysis

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13F Pro Quality Score

68.9/100

Rank #397 of 2,879 stocksTOP 25%

View Materials peers →

Rankings refresh quarterly once 80% of peers have filed (~45 days after quarter-end). Next update: ~Aug 14, 2026.

Revenue Growth

32.9/100

Profitability

79.2/100

Balance Sheet

91.1/100

Earnings Quality

45.9/100

Free Cash Flow

74.0/100

Institutional Flow

88.1/100

Revenue Scale

68.1/100

Dilution Risk

94.9/100

NEU Stock Analysis & AI Quality Score

AI stock analysis and institutional research for NEWMARKET CORP (NEU), a Materials sector company. 13F Pro's AI-powered ranking engine scores NEU at 68.9/100 on a 32-signal composite quality model, placing it at rank #397 of 2,879 stocks — the top 25% of the AI-ranked universe. NEU scores in the top quartile across balance sheet strength (91.1), institutional flow (88.1), profitability (79.2). Areas of concern include revenue growth (32.9), which score below median versus the broader universe. Based on the latest XBRL financial filings (Q1 2026), NEWMARKET CORP reports quarterly revenue of $669.7M, net income of $118.1M, an operating margin of 21.4%. Top institutional holders of NEU by reported 13-F value include BlackRock,, LONDON CO OF VIRGINIA, VANGUARD PORTFOLIO MANAGEMENT, based on the most recent SEC filings. NEU trades on the NYSE exchange and files with the SEC under CIK 1282637. 13F Pro's AI research platform runs 10 specialized AI analysts — value, growth, momentum, macro, and activist specialists — that debate NEU daily and publish AI-generated analysis with cited SEC sources. The platform aggregates historical XBRL financial facts, 10-Q and 10-K filings, insider Form 4 transactions, and institutional 13-F holdings for NEWMARKET CORP directly from SEC EDGAR. NEWMARKET CORP's 13F Pro composite quality score has ranged between 8 and 73 since 2021, currently 68.9 — an improving long-term trajectory across 56 quarterly and live scoring snapshots.

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Fun facts about NEWMARKET CORP

Quirks, history, and lore behind NEU — the kind of stuff that makes a stock memorable.

1
The Basics
U.S. specialty chemicals company · small-cap · listed on NYSE · headquartered in Pennsylvania.
2
The Numbers
Annual revenue in the low hundreds of millions of dollars, with a focus on high-margin niche products rather than commodity volumes.
3
The History
The company traces its roots back to the early 20th century and has long specialized in chemicals derived from petroleum byproducts and related feedstocks.
4
The Secret
Its core products — antioxidants and stabilizers — are invisible to consumers but critical for keeping rubber, plastics, and lubricants from degrading.
5
The Lore
It holds a commanding position in the market for antidegradant chemicals used in tires — meaning every time you drive, you're probably riding on its work without knowing it.
6
The Giveaway
Ticker NEU, headquartered in Conshohocken, Pennsylvania — the quiet king of rubber and polymer protection chemistry that keeps the wheels of industry literally turning.

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What's Driving NEU's Business? Latest 10-Q Breakdown

AI-extracted from NEWMARKET CORP's 10-Q filed 2026-04-23 — Q1 2026 (quarter ended March 31, 2026). Every figure is machine-verified against the filing text on SEC EDGAR.

NewMarket's Q1 2026 net sales fell 4.5% to $669.7M, driven by petroleum additives shipment weakness, though specialty materials benefited from Calca acquisition.

Biggest Revenue Drivers

Total revenue: $669.7M-4.5% YoY

Petroleum additives$609.8M-5.5% YoY

Lower lubricant additives shipments across most regions due to market softness, partially offset by modest fuel additives growth.

Specialty materials$58.1M+8.2% YoY

Inclusion of Calca acquisition (closed October 1, 2025) revenues, partially offset by unfavorable product shipment mix at AMPAC.

All other$1.8M+5.2% YoY

Antiknock compounds and contracted manufacturing operations.

Largest Expense Items

Cost of goods sold$448.8M-3.5% YoY

Favorable raw material costs partially offset by higher operating costs; petroleum additives COGS was 67.1% of net sales vs. 67.8% prior year.

Selling, general, and administrative expenses$46.0M+7.1% YoY

Petroleum additives SG&A increased $1.2M due to personnel-related costs; no significant changes in cost drivers.

Research, development, and testing expenses$31.6M-4.1% YoY

Petroleum additives R&D decreased $1.5M; represents 5.2% of petroleum additives net sales vs. 5.1% prior year.

Interest and financing expenses, net$8.8M-18.0% YoY

Lower average debt outstanding and lower average interest rate (4.8% in Q1 2026 vs. 5.3% in full-year 2025).

Margins: Petroleum additives operating profit margin was 22.1% in Q1 2026 vs. 22.0% in Q1 2025; rolling four-quarter margin of 20.5% remains within historical range. Specialty materials margin declined significantly due to unfavorable product shipment mix at AMPAC, with operating profit falling from $23.2M to $12.4M.

Watch Items from the Filing

Petroleum additives segment volume declined 6.9% YoY, reflecting market softness particularly in lubricant additives across most regions. Management expects impacts to continue during 2026.
Calca acquisition ($218M in October 2025) with $171M intangible assets recorded; $48M goodwill recognized. Preliminary purchase price allocation still subject to adjustment within one-year measurement period.
Long-term debt increased to $939.6M from $883.4M (mainly due to $106M net borrowings under revolving credit facility); debt-to-capitalization ratio rose to 35.2% from 33.2% due to increased debt and reduced shareholders' equity from share repurchases.
Environmental accruals of $12M at Q1 2026 (vs. $14M at year-end 2025) for sites including former Baton Rouge and Houston facilities; company believes currently adequately accrued but unexpected costs could significantly impact results.

AI-extracted and verified against SEC EDGAR filing text. Not investment advice.

Read the full 10-Q on SEC EDGAR →Share on X

Revenue

Q1 2026

$669.7M

Net Income

Q1 2026

$118.1M

Free Cash Flow

Q1 2026

$99.7M

Operating Margin

Q1 2026

21.4%

D/E Ratio

Q1 2026

0.54

Revenue & Net Income

Earnings Per Share

Key Financials Over Time

Export Financial Table · Pro+

Revenue

+3.3% YoY

$2.79BFY 2024

FY21 $2.36BFY22 $2.76BFY23 $2.70BFY24 $2.79B

Net Income

+18.9% YoY

$462.4MFY 2024

FY21 $190.9MFY22 $279.5MFY23 $388.9MFY24 $462.4M

Operating Income

+22.1% YoY

$590.0MFY 2024

FY21 $257.8MFY22 $355.1MFY23 $483.0MFY24 $590.0M

EPS (Diluted)

+19.2% YoY

$48.22FY 2024

FY21 $17.71FY22 $27.77FY23 $40.44FY24 $48.22

Total Assets

+35.5% YoY

$3.13BFY 2024

FY21 $2.56BFY22 $2.41BFY23 $2.31BFY24 $3.13B

Total Debt

+50.9% YoY

$971.3MFY 2024

FY21 $1.49BFY22 $1.00BFY23 $643.6MFY24 $971.3M

Op. Cash Flow

-9.9% YoY

$519.6MFY 2024

FY21 $165.3MFY22 $108.6MFY23 $576.8MFY24 $519.6M

Metric	FY 2024	FY 2023	FY 2022	FY 2021	FY 2020	FY 2019
Revenue	$2.79B +3.3%	$2.70B -2.4%	$2.76B +17.3%	$2.36B +17.2%	$2.01B -8.2%	$2.19B
Net Income	$462.4M +18.9%	$388.9M +39.1%	$279.5M +46.4%	$190.9M -29.4%	$270.6M +6.4%	$254.3M
Operating Income	$590.0M +22.1%	$483.0M +36.0%	$355.1M +37.8%	$257.8M -17.3%	$311.8M -7.6%	$337.3M
EPS (Diluted)	$48.22 +19.2%	$40.44 +45.6%	$27.77 +56.8%	$17.71 -28.1%	$24.64	—
Total Assets	$3.13B +35.5%	$2.31B -4.1%	$2.41B -5.9%	$2.56B +32.3%	$1.93B +2.6%	$1.89B
Total Debt	$971.3M +50.9%	$643.6M -35.9%	$1.00B -32.6%	$1.49B +148.6%	$598.8M -6.9%	$642.9M
Operating Cash Flow	$519.6M -9.9%	$576.8M +431.0%	$108.6M -34.3%	$165.3M -41.8%	$284.2M -15.7%	$337.2M

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Available Research

13F Pro tracks comprehensive data for NEWMARKET CORP including:

SEC EDGAR filings (10-K, 10-Q, 8-K)

XBRL financial facts (revenue, EPS, margins)

Insider transactions (Form 4)

Institutional 13F holdings

Quality rankings (32 signals)

AI analyst debates & daily meetings

Historical financial trends

Peer comparison & sector analysis

Top Institutional Holders of NEU

BlackRock, Inc.
$459.4M716,683 sh
LONDON CO OF VIRGINIA
$295.5M461,027 sh
VANGUARD PORTFOLIO MANAGEMENT LLC
$288.7M450,480 sh
VANGUARD CAPITAL MANAGEMENT LLC
$227.1M354,291 sh
Boston Partners
$160.9M251,122 sh
STATE STREET CORP
$150.4M233,643 sh
DIMENSIONAL FUND ADVISORS LP
$124.7M194,507 sh
GEODE CAPITAL MANAGEMENT, LLC
$118.4M184,730 sh
AMERICAN CENTURY COMPANIES INC
$108.1M168,644 sh
CAISSE DE DEPOT ET PLACEMENT DU QUEBEC
$85.9M133,971 sh

Fund	Value	Shares
BlackRock, Inc.	$459.4M	716,683
LONDON CO OF VIRGINIA	$295.5M	461,027
VANGUARD PORTFOLIO MANAGEMENT LLC	$288.7M	450,480
VANGUARD CAPITAL MANAGEMENT LLC	$227.1M	354,291
Boston Partners	$160.9M	251,122
STATE STREET CORP	$150.4M	233,643
DIMENSIONAL FUND ADVISORS LP	$124.7M	194,507
GEODE CAPITAL MANAGEMENT, LLC	$118.4M	184,730
AMERICAN CENTURY COMPANIES INC	$108.1M	168,644
CAISSE DE DEPOT ET PLACEMENT DU QUEBEC	$85.9M	133,971

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Is NEU a good stock to buy?

13F Pro's AI-powered analysis of NEWMARKET CORP (NEU) draws on SEC EDGAR-sourced fundamentals, institutional 13F holdings, and insider Form 4 transactions in the Materials sector (listed on NYSE). The 32-signal AI Quality Score, current rank, and full bull/bear verdict for NEU are available on the NEU stock profile dashboard — with the same data, AI insights, ratios, and institutional activity refreshed after every 10-K, 10-Q, 13F, and Form 4 filing.

Which hedge funds own NEU?

Institutional investors are required to disclose their holdings quarterly via SEC Form 13F. 13F Pro aggregates these filings to show which hedge funds, mutual funds, and asset managers are buying or selling NEU. Combined with insider transaction data from Form 4 filings and AI-powered analysis from 10 specialized research agents, 13F Pro provides a comprehensive view of NEWMARKET CORP's investment landscape.