What SEC filings does NewMarket Corporation submit to the SEC?

NewMarket Corporation (NEU) submits several types of SEC filings including Form 4 (insider transactions), Form 144 (proposed insider sales), 8-K reports (material events such as earnings releases, acquisitions, leadership changes), and periodic reports — the 10-Q (quarterly) and 10-K (annual). All filings are publicly available through SEC EDGAR.

What does a Form 4 filing tell me about NEU?

A Form 4 for NEU discloses a transaction by a company insider — typically a director, officer, or 10%+ shareholder. It shows the source-reported date, number of shares, price, and updated ownership. These facts do not establish motive or predict future returns.

How do I interpret an 8-K filing from NewMarket Corporation?

An 8-K signals a material event requiring prompt disclosure. Common triggers include earnings pre-announcements, acquisitions, leadership appointments or departures, credit changes, or regulatory actions. Read the item codes inside the filing to understand exactly what was disclosed before drawing conclusions.

What is the difference between a 10-K and 10-Q for NEU?

The 10-K is NewMarket Corporation's annual report with fully audited financial statements, comprehensive MD&A, and complete risk factor disclosures — filed 60–90 days after fiscal year-end. The 10-Q is a lighter quarterly report with unaudited financials filed for the first three quarters. Together they provide a continuous financial picture of the company.

Where can I see all NEU SEC filings directly on EDGAR?

You can view all historical NewMarket Corporation filings on the SEC EDGAR company page for NEU. Each filing card on this page links directly to the original SEC document.

How often does NewMarket Corporation file with the SEC?

NewMarket Corporation files one 10-K per year and up to three 10-Qs per year. Form 4 insider transactions must be reported within two business days of each trade, so the frequency depends on how often insiders are buying or selling NEU shares. 8-K filings occur whenever a material event happens — which can be several times per quarter for an active company.

NEU SEC Filing News — NewMarket Corporation

Latest SEC filings for NewMarket Corporation (NEU) explained in plain English. Covers insider buying and selling (Form 4), proposed insider sales (Form 144), material company events (8-K), and quarterly & annual reports (10-Q / 10-K). StrongBuyAnalytics provides navigation and brief excerpts or summaries; original filings remain at the SEC/source links and were authored by their filers, not StrongBuyAnalytics. Filing dates shown are source dates. Coverage and detection can be delayed or incomplete because of SEC availability, amendments, parsing, caching, or outages. Latest source filing date shown: 2026-10-06.

NewMarket Corporation, through its subsidiaries, primarily engages in the manufacture and sale of petroleum additives. It offers lubricant additives for use in various vehicle and industrial applications, including engine oils, transmission fluids, off-road powertrain and hydraulic systems, gear oils, hydraulic oils, turbine oils, and other applications where metal-to-metal moving parts are utilized; engine oil additives designed for passenger cars, motorcycles, on and off-road heavy duty commer…

Sector: Basic Materials Industry: Specialty Chemicals Market Cap: $8.1B CIK: 1282637

Total Filings

Bullish Classifications

Bearish Classifications

Insider Transactions

Material Events (8-K)

Periodic Reports

Rule-based classifications for NEU currently lean bullish. Of the 20 displayed SEC filing records, 1 carry bullish classifications versus 0 bearish classifications. These labels summarize filing attributes; they are not recommendations, probabilities, or evidence of future price direction. There were 12 insider transactions (Form 4) in this period.

NEU Filing Activity Snapshot 2026-02-20 — 2026-10-06

Insider Transactions (Form 4)

1 buy vs 0 sells

Net insider buying in this period — more purchases than sales reported.

Largest Form 144 Filing

$247.7K

Xu Ting (Director) · 2026-02-25

400 shares · Form 4

Insider Transactions 12 · Forms 3, 4 and 5

A Form 4 is filed within two business days of a company insider — an officer, a director, or a holder of more than ten percent of the stock — changing their position in the shares. All 12 filings in this group are Form 4s for NewMarket Corporation.

The difficulty with reading these filings as a group is that a single form type covers transactions that mean entirely different things. An executive spending their own money to buy stock and an executive having shares withheld to pay tax on a vesting grant both appear as a Form 4. Every filing below is therefore tagged with the nature of the underlying transaction, taken from the transaction code reported on the form itself.

Across the 12 insider filings shown, the breakdown is 5 compensation award, 5 gift, 1 open-market purchase and 1 tax withholding. 1 of them involved a discretionary open-market trade; the rest are compensation and administrative mechanics.

What each transaction type means

Compensation award ×5: Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.
Gift ×5: Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.
Open-market purchase ×1: The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.
Tax withholding ×1: Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Form 4 Gift Tax / Compensation Filing 2026-10-06

NEU insider Form 4 filed for equity award, exercise, or tax withholding

ROGERS JAMES E (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	12	—	—

Filing: Form 4 (Insider Transaction) Insider: ROGERS JAMES E (Director) Shares: 12

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-09-10

NEU insider Form 4 filed for equity award, exercise, or tax withholding

GOTTWALD BRUCE C (10% Owner) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	132	—	—

Filing: Form 4 (Insider Transaction) Insider: GOTTWALD BRUCE C (10% Owner) Shares: 132

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-07-01

NEU insider Form 4 filed for equity award, exercise, or tax withholding

ROGERS JAMES E (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	157	—	—

Filing: Form 4 (Insider Transaction) Insider: ROGERS JAMES E (Director) Shares: 157

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-07-01

NEU insider Form 4 filed for equity award, exercise, or tax withholding

GAMBILL MARK M (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	157	—	—

Filing: Form 4 (Insider Transaction) Insider: GAMBILL MARK M (Director) Shares: 157

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-07-01

NEU insider Form 4 filed for equity award, exercise, or tax withholding

Harris H Hiter III (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	157	—	—

Filing: Form 4 (Insider Transaction) Insider: Harris H Hiter III (Director) Shares: 157

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-07-01

NEU insider Form 4 filed for equity award, exercise, or tax withholding

Ukrop Lowell Simmons (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	157	—	—

Filing: Form 4 (Insider Transaction) Insider: Ukrop Lowell Simmons (Director) Shares: 157

View on SEC EDGAR → Open Filing Document →

Form 4 Compensation award Tax / Compensation Filing 2026-07-01

NEU insider Form 4 filed for equity award, exercise, or tax withholding

Xu Ting (Director) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were granted as compensation rather than purchased. No cash changed hands, so the filing reflects a pay decision by the company, not a judgement about the price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`A`	Compensation award	157	—	—

Filing: Form 4 (Insider Transaction) Insider: Xu Ting (Director) Shares: 157

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-06-29

NEU insider Form 4 filed for equity award, exercise, or tax withholding

GOTTWALD THOMAS E (Director, Chairman, President & CEO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	211	—	—

Filing: Form 4 (Insider Transaction) Insider: GOTTWALD THOMAS E (Director, Chairman, President & CEO) Shares: 211

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-06-08

NEU insider Form 4 filed for equity award, exercise, or tax withholding

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	1,500	—	—

Filing: Form 4 (Insider Transaction) Insider: GOTTWALD THOMAS E (Director, Chairman, President & CEO) Shares: 1,500

View on SEC EDGAR → Open Filing Document →

Form 4 Open-market purchase Insider Buying 2026-02-25

NEU insider Xu Ting (Director) bought 400 shares (~$247.7K)

Xu Ting, listed as Director at NEWMARKET CORP, reported an open-market purchase of 400 NEU shares in a Form 4 filing. Insider buying is often treated as a bullish signal because company insiders are committing their own capital.

The insider bought shares on the open market with their own money. This is the only Form 4 category that requires a discretionary cash outlay at the prevailing price.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`P`	Open-market purchase	400	$619.21	$247.7K

Filing: Form 4 (Insider Transaction) Insider: Xu Ting (Director) Shares: 400 Est. Value: $247.7K

View on SEC EDGAR → Open Filing Document →

Form 4 Tax withholding Tax / Compensation Filing 2026-02-20

NEU insider Form 4 filed for equity award, exercise, or tax withholding

FITZGERALD TIMOTHY K (Vice President & CFO) filed a Form 4 covering compensation-related activity such as stock awards, option exercises, conversions, or tax withholding. These filings are usually neutral.

Shares were withheld by the company to settle tax due when equity vested. This is an automatic administrative step and not a decision to sell.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`F`	Tax withholding on vested shares	34	$607.04	$20.6K

Filing: Form 4 (Insider Transaction) Insider: FITZGERALD TIMOTHY K (Vice President & CFO) Shares: 34

View on SEC EDGAR → Open Filing Document →

Form 4 Gift Tax / Compensation Filing 2026-02-20

NEU insider Form 4 filed for equity award, exercise, or tax withholding

Shares were transferred as a gift, typically for estate or charitable planning. No sale into the market took place.

Transactions reported on this filing
Code	Nature	Shares	Price	Value
`G`	Gift	60	—	—
`G`	Gift	1,320	—	—
`G`	Gift	60	—	—
`G`	Gift	120	—	—
`G`	Gift	120	—	—
`G`	Gift	150	—	—
`G`	Gift	120	—	—
`G`	Gift	150	—	—
`G`	Gift	180	—	—
`G`	Gift	180	—	—
`G`	Gift	180	—	—
`G`	Gift	180	—	—
`G`	Gift	120	—	—
`G`	Gift	180	—	—
`G`	Gift	180	—	—
`G`	Gift	180	—	—

Filing: Form 4 (Insider Transaction) Insider: GOTTWALD THOMAS E (Director, Chairman, President & CEO) Shares: 3,480

View on SEC EDGAR → Open Filing Document →

Material Events 6 · Form 8-K

An 8-K reports a material event in the window between scheduled reports. There are 6 in this period for NewMarket Corporation. Each 8-K names the item number it is filed under, and that number is the fastest way to tell a routine disclosure from a consequential one.

Item 2.02 is an earnings release, Item 5.02 is a change of directors or officers, and Item 1.01 or 2.01 covers a material agreement or a completed acquisition. Item 7.01 and Item 8.01 are the general-purpose disclosure items and carry no fixed meaning on their own.

Form 8-K Material Company Update 2026-08-13