NewMarket raises quarterly dividend to $3.25 a share

The declared payment is scheduled for January 1, 2027, for shareholders of record at the close of business on December 15, 2026.

Rhea-AI Filing Summary

NewMarket Corporation’s board declared a quarterly dividend of $3.25 per common share, up $0.25, or approximately 8%, from $3.00. The annual dividend equivalent is $13.00 per share, compared with $12.00.

The dividend is payable January 1, 2027, to shareholders of record at the close of business on December 15, 2026. Future dividends remain subject to quarterly determination and declaration by the board.

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Positive

• Moderate pointQuarterly dividend increases approximately 8% to $3.25 per share.

Negative

• None.

8-K Event Classification

2 items: 8.01, 9.01

2 items

Item 8.01 Other Events Other

Voluntary disclosure of events the company deems important to shareholders but not covered by other items.

Item 9.01 Financial Statements and Exhibits Exhibits

Financial statements, pro forma financial information, or exhibit attachments filed with this report.

Key Figures

Quarterly dividend: $3.25 per share Quarterly dividend increase: $0.25 per share Dividend increase: Approximately 8% +3 more

6 metrics

Quarterly dividend $3.25 per share Declared for the common stock

Quarterly dividend increase $0.25 per share Compared with the last quarterly dividend

Dividend increase Approximately 8% Compared with the last quarterly dividend

Annual dividend equivalent $13.00 per share Compared with $12.00 per share previously

Dividend payment date January 1, 2027 Payable to shareholders of record

Record date December 15, 2026 At the close of business

Key Terms

shareholders of record, annual dividend, forward-looking statements

3 terms

shareholders of record financial

"shareholders of record at the close of business"

Shareholders of record are the people officially listed as owners of a company's stock on a specific date. This matters because only these shareholders are entitled to receive dividends or vote at company meetings. It's like being on the official guest list for a party—you get to enjoy the perks and have a say.

annual dividend financial

"equivalent to an annual dividend of $13.00 per share"

The annual dividend is the total cash amount a company pays to each share over a full year, combining all regular and special dividend payments. For investors it’s a measure of the income they can expect from owning a stock and a signal of the company’s financial strength—think of it as the yearly “rent” you collect from holding a piece of a business; steady or growing dividends often suggest reliability, while cuts can warn of trouble.

forward-looking statements regulatory

"constitutes forward-looking statements"

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What is NEU’s new quarterly dividend?

NewMarket declared a quarterly dividend of $3.25 per common share, up $0.25, or approximately 8%, from $3.00. The annual dividend equivalent is $13.00 per share, compared with $12.00.

When is NEU’s dividend payable, and who qualifies?

The dividend is payable January 1, 2027, to shareholders of record at the close of business on December 15, 2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/29/2026 - 05:05 PM EDT Accepted by SEC EDGAR 10/29/2026 - 05:05 PM EDT Learn about SEC filing dates

NEWMARKET CORP false 0001282637 0001282637 2026-10-29 2026-10-29 0001282637 stpr:VA 2026-10-29 2026-10-29

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d)

of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): October 29, 2026

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia		1-32190		20-0812170
(State or other jurisdiction of incorporation)		(Commission File Number)		(IRS Employer Identification No.)

330 South Fourth Street, Richmond, Virginia		23219
(Address of principal executive offices)		(Zip Code)

Registrant’s telephone number, including area code: (804) 788-5000

Not applicable

(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:

Title of each class		Trading Symbol(s)		Name of each exchange on which registered
Common Stock, without par value		NEU		New York Stock Exchange

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Item 8.01 Other Events.

On October 29, 2026, NewMarket Corporation (the “Company”) issued a press release reporting that the Company’s Board of Directors had approved raising the quarterly dividend approximately 8% from $3.00 per share on the common stock of the Company to $3.25 per share. The quarterly dividend is equivalent to an annual dividend of $13.00 per share, up from $12.00 per share. Future dividends are subject to quarterly determination and declaration by the Board of Directors. The current quarterly dividend is payable January 1, 2027, to Company shareholders of record at the close of business on December 15, 2026. A copy of this press release is attached hereto as Exhibit 99.1 and incorporated herein by reference.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit 99.1		Press release regarding the quarterly dividend issued by the Company on October 29, 2026
Exhibit 104		Cover Page Interactive Data File (Embedded within the inline XBRL document)

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

Date: October 29, 2026

NewMarket Corporation
By:		/s/ Timothy K. Fitzgerald
Name:		Timothy K. Fitzgerald
Title:		Vice President and Chief Financial Officer

EXHIBIT 99.1

NEWMARKET CORPORATION INCREASES QUARTERLY DIVIDEND

Richmond, VA, October 29, 2026 - The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.25 per share on the common stock of the Corporation, an increase of $0.25, or approximately 8%, as compared to the last quarterly dividend of $3.00 per share. The dividend is payable January 1, 2027, to NewMarket shareholders of record at the close of business on December 15, 2026.

NewMarket Corporation is a holding company operating through its subsidiaries, Afton Chemical Corporation (Afton), Ethyl Corporation (Ethyl), American Pacific Corporation (AMPAC) and Calca Solutions, LLC (Calca). The Afton and Ethyl companies develop, manufacture, blend, and deliver chemical additives that enhance the performance of petroleum products. AMPAC is a manufacturer of specialty materials primarily used in solid rocket motors for the aerospace and defense industries. Calca is the nation’s leading producer of Ultra Pure and high-purity hydrazine – essential, mission-critical propellants that enable advanced aerospace and defense applications. The NewMarket family of companies has a long-term commitment to its people, to safety, to providing innovative solutions for its customers, and to making the world a better place.

Some of the information contained in this press release constitutes forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Although NewMarket’s management believes its expectations are based on reasonable assumptions within the bounds of its knowledge of its business and operations, there can be no assurance that actual results will not differ materially from expectations.

Factors that could cause actual results to differ materially from expectations include, but are not limited to, the availability of raw materials and distribution systems; disruptions at production facilities, including single-sourced facilities; hazards common to chemical businesses; the ability to respond effectively to technological changes in our industries; failure to protect our intellectual property rights; sudden, sharp, or prolonged raw material price increases; competition from other manufacturers; current and future governmental regulations; the loss of significant customers; termination or changes to contracts with contractors and subcontractors of the U.S. government or directly with the U.S. government; failure to attract and retain a highly-qualified workforce; an information technology system failure or security breach; the occurrence or threat of extraordinary events, including natural disasters, terrorist attacks, wars or other conflicts, and health-related epidemics; risks related to operating outside of the United States, including tariffs and trade policy; political, economic, and regulatory factors concerning our products; the impact of substantial indebtedness on our operational and financial flexibility; the impact of fluctuations in foreign exchange rates; resolution of environmental liabilities or legal proceedings; limitation of our insurance coverage; our inability to realize expected benefits from investment in our infrastructure or from acquisitions, or our inability to successfully integrate acquisitions into our business; the underperformance of our pension assets resulting in additional cash contributions to our pension plans; and other factors detailed from time to time in the reports that NewMarket files with the Securities and Exchange Commission, including the risk factors in Part I, Item 1A. “Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2025, which is available to shareholders at www.newmarket.com.

Any forward-looking statement made by NewMarket in the foregoing discussion speaks only as of the date on which such forward-looking statement is made. New risks and uncertainties arise from time to time, and it is impossible for us to predict these events or how they may affect us. We have no duty to, and do not intend to, update or revise the forward-looking statements in this discussion after the date hereof, except as may be required by law. In light of these risks and uncertainties, the events described in any forward-looking statement made in this discussion, or elsewhere, might not occur.

CONTACTS:

Timothy K. Fitzgerald

Investor Relations

Phone: 804.788.5555

Email: investorrelations@newmarket.com

Filing Exhibits & Attachments

5 documents

Press Releases

• EX-99.1 EX-99.1 6.2 KB

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA 3.8 KB
• EX-101 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE 12.4 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE 20.5 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE 13.3 KB