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   <title>Form  4          NEWMARKET CORP            For: Sep 09  Filed by: GOTTWALD BRUCE C</title>
   <link>http://www.streetinsider.com/SEC+Filings/Form++4++++++++++NEWMARKET+CORP++++++++++++For%3A+Sep+09++Filed+by%3A+GOTTWALD+BRUCE+C/27048845.html</link>
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   <pubDate>Thu, 10 Sep 2026 16:30:00 -0400</pubDate>
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   <title>Form  8-K        NEWMARKET CORP            For: Aug 13</title>
   <link>http://www.streetinsider.com/SEC+Filings/Form++8-K++++++++NEWMARKET+CORP++++++++++++For%3A+Aug+13/26922598.html</link>
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   <pubDate>Thu, 13 Aug 2026 17:05:00 -0400</pubDate>
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   <title>Form  8-K        NEWMARKET CORP            For: Aug 13</title>
   <link>http://www.streetinsider.com/SEC+Filings/Form++8-K++++++++NEWMARKET+CORP++++++++++++For%3A+Aug+13/26922598.html</link>
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   <pubDate>Thu, 13 Aug 2026 17:05:00 -0400</pubDate>
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   <title>Newmarket (NEU) Declares $3.00 Quarterly Dividend; 1.3% Yield</title>
   <link>http://www.streetinsider.com/Dividends/Newmarket+%28NEU%29+Declares+%243.00+Quarterly+Dividend%3B+1.3%25+Yield/26922536.html</link>
   <description>&lt;p&gt;Newmarket (NYSE: NEU) declared a quarterly dividend of $3.00 per share, or $12 annualized.&lt;/p&gt;&lt;p&gt;The dividend will be payable on October 1, 2026, to stockholders of record on September 15, 2026, with an ex-dividend date of September 14, 2026.&lt;/p&gt;&lt;p&gt;The annual yield on the dividend is 1.3 percent.&lt;/p&gt;&lt;p&gt;For a dividend history and other dividend-related data on Newmarket (NEU) &lt;a href=&quot;http://www.streetinsider.com/dividend_history.php?q=NEU&quot;&gt;click here&lt;/a&gt;.&lt;/p&gt;</description>
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   <pubDate>Thu, 13 Aug 2026 17:02:27 -0400</pubDate>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
   <link>http://www.streetinsider.com/Press+Releases/NewMarket+Corporation+Announces+Quarterly+Dividend/26922487.html</link>
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&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <pubDate>Thu, 13 Aug 2026 17:01:00 -0400</pubDate>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
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&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
   <link>http://www.streetinsider.com/Press+Releases/NewMarket+Corporation+Announces+Quarterly+Dividend/26922487.html</link>
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&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
   <link>http://www.streetinsider.com/Press+Releases/NewMarket+Corporation+Announces+Quarterly+Dividend/26922487.html</link>
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&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
   <link>http://www.streetinsider.com/Press+Releases/NewMarket+Corporation+Announces+Quarterly+Dividend/26922487.html</link>
   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
   <link>http://www.streetinsider.com/Press+Releases/NewMarket+Corporation+Announces+Quarterly+Dividend/26922487.html</link>
   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
   <link>http://www.streetinsider.com/Press+Releases/NewMarket+Corporation+Announces+Quarterly+Dividend/26922487.html</link>
   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
   <link>http://www.streetinsider.com/Press+Releases/NewMarket+Corporation+Announces+Quarterly+Dividend/26922487.html</link>
   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
   <link>http://www.streetinsider.com/Press+Releases/NewMarket+Corporation+Announces+Quarterly+Dividend/26922487.html</link>
   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
   <link>http://www.streetinsider.com/Press+Releases/NewMarket+Corporation+Announces+Quarterly+Dividend/26922487.html</link>
   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
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   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
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   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
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   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
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   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <title>NewMarket Corporation Announces Quarterly Dividend</title>
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&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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   <description>
&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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&lt;p&gt;    RICHMOND, Va.--(BUSINESS WIRE)--
The Board of Directors of NewMarket Corporation (NYSE: NEU) declared a quarterly dividend in the amount of $3.00 per share on the common stock of the Corporation. The dividend is payable October 1, 2026, to NewMarket shareholders of record at the close of business on September 15, 2026.

&lt;/p&gt;&lt;p&gt;
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</description>
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