NEU

EX-99.1

2 neu-20260630exx991earnings.htm

EX-99.1

Document

EXHIBIT 99.1

NewMarket Corporation Reports Second Quarter and First Half 2026 Results

•First Half Net Income of $252 million and Earnings per Share of $27.14

•First Half Segment Operating Profit of $319 million

•Strong First Half Cash Flow

Richmond, VA, July 29, 2026 – NewMarket Corporation (NYSE:NEU) Chairman and Chief Executive Officer, Thomas E. Gottwald, released the following earnings report of the Company’s operations for the second quarter and first half of 2026.

Net income for the second quarter of 2026 was $133.8 million, or $14.54 per share, compared to net income of $111.2 million, or $11.84 per share, for the second quarter of 2025. For the first half of 2026, net income was $251.8 million, or $27.14 per share, compared to $237.2 million, or $25.11 per share, for the same period in 2025.

Petroleum additives sales for the second quarter of 2026 were $675.6 million, compared to $653.9 million for the same period in 2025. Petroleum additives operating profit for the second quarter of 2026 was $149.4 million, compared to $139.8 million for the second quarter of 2025. Petroleum additives operating profit increased due to surcharges implemented in response to higher costs incurred due to the supply chain disruptions in the Middle East. These actions, together with our continued focus on operational efficiency, resulted in improved operating profit during the quarter.

Petroleum additives sales were $1.3 billion for both the first half of 2026 and 2025. Petroleum additives operating profit for the first half of 2026 was $284.4 million, compared to $281.9 million in the same period last year.

Specialty materials sales were $67.2 million for the second quarter of 2026, compared to $42.0 million for the second quarter of 2025. Specialty materials operating profit was $22.3 million for the second quarter of 2026, compared to operating profit of $10.5 million for the second quarter of 2025. The 2025 period excludes Calca's results as the acquisition was completed on October 1, 2025. As previously stated, we expect variation in quarterly results for the specialty materials segment on an ongoing basis due to the nature of its business.

Specialty materials sales were $125.3 million for the first half of 2026, compared to $95.8 million for the first half of 2025. Specialty materials operating profit was $34.8 million for the first half of 2026, compared to $33.7 million in the same period last year.

We are especially pleased with the performance of our Specialty Materials segment and we are also excited about our investments to expand production capacity for both ammonium perchlorates and high purity hydrazine to support the domestic production of critical aerospace and defense chemicals. We expect to see this additional capacity come online towards the end of 2026.

Our operations generated solid cash flow during the first half of 2026. We funded capital expenditures of $51.7 million, paid dividends of $55.6 million, and repurchased over 200 thousand shares of common stock for $126.4 million, while reducing our Net Debt to EBITDA ratio to 1.0x. The cash flow generated by operations enables us to continue to provide value to our customers and shareholders through reinvestment in our businesses for growth and efficiency, acquisitions, dividends and share repurchases.

We continue to monitor the impact of the conflict in the Middle East, the uncertain macroeconomic environment, and the changes in international trade relations and tariffs. Within petroleum additives, the surcharges and operational actions implemented earlier this year to address higher raw materials, utility, and logistics costs remain in place, and we continue

to evaluate and adjust our approach as market conditions evolve. While the operating environment remains dynamic, we believe these actions position us well to continue delivering solid results.

We are pleased with the performance of both our petroleum additives and specialty materials segments during the first half of 2026. We will continue to invest in technology to serve our customers, focus on cost control and margin management, and advance our initiatives to strengthen our global manufacturing network to enable more efficient product delivery to our customers in the years ahead.

Our dedicated team makes decisions to promote long-term value for our shareholders and customers, and remains focused on our long-term objectives. We believe the fundamentals of how we run our business - a long-term view, safety-first culture, customer-focused solutions, technology-driven product offerings, and world-class supply chain capability - will continue to benefit all our stakeholders.

Sincerely,

Thomas E. Gottwald

The petroleum additives segment consists of the North America (the United States and Canada), Latin America (Mexico, Central America, and South America), Asia Pacific, and Europe/Middle East/Africa/India (Europe or

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neu-20260211false000128263700012826372026-02-112026-02-11

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): February 11, 2026

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On February 11, 2026, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the fourth quarter and year ended December 31, 2025. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on February 11, 2026. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: February 11, 2026

NEWMARKET CORPORATION

By:/s/ Timothy K. Fitzgerald Timothy K. Fitzgerald Vice President and Chief Financial Officer

neu-20251030false000128263700012826372025-10-302025-10-30

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 30, 2025

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On October 30, 2025, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the third quarter ended September 30, 2025. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on October 30, 2025. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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 30, 2025

NEWMARKET CORPORATION

By:/s/ Timothy K. Fitzgerald Timothy K. Fitzgerald Vice President and Chief Financial Officer

neu-20250730false000128263700012826372025-07-302025-07-30

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): July 30, 2025

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On July 30, 2025, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the second quarter ended June 30, 2025. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on July 30, 2025. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: July 30, 2025

NEWMARKET CORPORATION

By:/s/ Timothy K. Fitzgerald Timothy K. Fitzgerald Vice President and Chief Financial Officer

neu-20250423false000128263700012826372025-04-232025-04-23

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): April 23, 2025

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On April 23, 2025, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the first quarter ended March 31, 2025. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on April 23, 2025. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: April 23, 2025

NEWMARKET CORPORATION

By:/s/ Timothy K. Fitzgerald Timothy K. Fitzgerald Vice President and Chief Financial Officer

neu-20250203false000128263700012826372025-02-032025-02-03

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): February 3, 2025

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On February 3, 2025, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the fourth quarter and year ended December 31, 2024. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on February 3, 2025. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: February 3, 2025

NEWMARKET CORPORATION

By:/s/ Timothy K. Fitzgerald Timothy K. Fitzgerald Vice President and Chief Financial Officer

neu-20241023false000128263700012826372024-10-232024-10-23

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 23, 2024

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On October 23, 2024, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the third quarter ended September 30, 2024. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on October 23, 2024. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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 23, 2024

NEWMARKET CORPORATION

By:/s/ William J. Skrobacz William J. Skrobacz Vice President and Chief Financial Officer

neu-20240729false000128263700012826372024-07-292024-07-29

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): July 29, 2024

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On July 29, 2024, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the second quarter ended June 30, 2024. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on July 29, 2024. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: July 29, 2024

NEWMARKET CORPORATION

By:/s/ William J. Skrobacz William J. Skrobacz Vice President and Chief Financial Officer

neu-20240424false000128263700012826372024-04-242024-04-24

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): April 24, 2024

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On April 24, 2024, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the first quarter ended March 31, 2024. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on April 24, 2024. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: April 24, 2024

NEWMARKET CORPORATION

By:/s/ William J. Skrobacz William J. Skrobacz Vice President and Chief Financial Officer

neu-20240131false000128263700012826372024-01-312024-01-31

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): January 31, 2024

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On January 31, 2024, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the year ended December 31, 2023. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on January 31, 2024. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: January 31, 2024

NEWMARKET CORPORATION

By:/s/ William J. Skrobacz William J. Skrobacz Vice President and Chief Financial Officer

neu-20231025false000128263700012826372023-10-252023-10-25

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 25, 2023

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On October 25, 2023, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the third quarter ended September 30, 2023. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on October 25, 2023. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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 25, 2023

NEWMARKET CORPORATION

By:/s/ William J. Skrobacz William J. Skrobacz Vice President and Chief Financial Officer

neu-20230726false000128263700012826372023-07-262023-07-26

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): July 26, 2023

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On July 26, 2023, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the second quarter ended June 30, 2023. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on July 26, 2023. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: July 26, 2023

NEWMARKET CORPORATION

By:/s/ William J. Skrobacz William J. Skrobacz Vice President and Chief Financial Officer

neu-20230426false000128263700012826372023-04-262023-04-26

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): April 26, 2023

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On April 26, 2023, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the first quarter ended March 31, 2023. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on April 26, 2023. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: April 26, 2023

NEWMARKET CORPORATION

By:/s/ William J. Skrobacz William J. Skrobacz Vice President and Chief Financial Officer

neu-20230131false000128263700012826372023-01-312023-01-31

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): January 31, 2023

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On January 31, 2023, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the year ended December 31, 2022. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on January 31, 2023. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: January 31, 2023

NEWMARKET CORPORATION

By:/s/ William J. Skrobacz William J. Skrobacz Vice President and Chief Financial Officer

neu-20221024false000128263700012826372022-10-242022-10-24

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 24, 2022

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On October 24, 2022, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the third quarter ended September 30, 2022. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on October 24, 2022. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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 24, 2022

NEWMARKET CORPORATION

By:/s/ Brian D. Paliotti Brian D. Paliotti Vice President and Chief Financial Officer

neu-20220802false000128263700012826372022-08-022022-08-02

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): August 2, 2022

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On August 2, 2022, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the second quarter ended June 30, 2022. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on August 2, 2022. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: August 2, 2022

NEWMARKET CORPORATION

By:/s/ Brian D. Paliotti Brian D. Paliotti Vice President and Chief Financial Officer

neu-20220427false000128263700012826372022-04-272022-04-27

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): April 27, 2022

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On April 27, 2022, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the first quarter ended March 31, 2022. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on April 27, 2022. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: April 27, 2022

NEWMARKET CORPORATION

By:/s/ Brian D. Paliotti Brian D. Paliotti Vice President and Chief Financial Officer

neu-20220202false000128263700012826372022-02-022022-02-02

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): February 2, 2022

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On February 2, 2022, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the year ended December 31, 2021. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on February 2, 2022. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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: February 2, 2022

NEWMARKET CORPORATION

By:/s/ Brian D. Paliotti Brian D. Paliotti Vice President and Chief Financial Officer

neu-20211025false000128263700012826372021-10-252021-10-25

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 25, 2021

NEWMARKET CORPORATION

(Exact name of registrant as specified in its charter)

Virginia1-3219020-0812170 (State or other jurisdiction of incorporation or organization)(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 classTrading Symbol(s)Name of each exchange on which registered Common Stock, with no par valueNEUNew 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 (Section 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (Section 240.12b-2 of this chapter). 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 2.02.    Results of Operations and Financial Condition On October 25, 2021, NewMarket Corporation (the “Company”) issued a press release regarding its earnings for the third quarter ended September 30, 2021. A copy of this press release is furnished as Exhibit 99.1 hereto and incorporated herein by reference. In accordance with General Instruction B.2 of Form 8-K, the information in Item 2.02 of this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed “filed” for the purposes of Section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, except as shall be expressly set forth by specific reference in such a filing.

Item 9.01.     Financial Statements and Exhibits

(d) Exhibits.

Exhibit 99.1 Press release regarding earnings issued by the Company on October 25, 2021. Exhibit 104Cover Page Interactive Data File (embedded within the Inline XBRL document)

SIGNATURE

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 25, 2021

NEWMARKET CORPORATION

By:/s/ Brian D. Paliotti Brian D. Paliotti Vice President and Chief Financial Officer