<SEC-DOCUMENT>0001193125-18-135123-index.html : 20180426
<SEC-HEADER>0001193125-18-135123.hdr.sgml : 20180426
<ACCEPTANCE-DATETIME>20180426170602
ACCESSION NUMBER:		0001193125-18-135123
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180426
ITEM INFORMATION:		Submission of Matters to a Vote of Security Holders
ITEM INFORMATION:		Other Events
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20180426
DATE AS OF CHANGE:		20180426

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NEWMARKET CORP
		CENTRAL INDEX KEY:			0001282637
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL ORGANIC CHEMICALS [2860]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			VA
		FISCAL YEAR END:			1215

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32190
		FILM NUMBER:		18779552

	BUSINESS ADDRESS:	
		STREET 1:		330 S FOURTH ST
		STREET 2:		PO BOX 2189
		CITY:			RICHMOND
		STATE:			VA
		ZIP:			23218-2189
		BUSINESS PHONE:		804-788-5000

	MAIL ADDRESS:	
		STREET 1:		330 S FOURTH ST
		STREET 2:		PO BOX 2189
		CITY:			RICHMOND
		STATE:			VA
		ZIP:			23218-2189
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>d575536d8k.htm
<DESCRIPTION>FORM 8-K
<TEXT>
Document 1 - file: d575536d8k.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>d575536dex991.htm
<DESCRIPTION>EX-99.1
<TEXT>
Document 2 - file: d575536dex991.htm

</DOCUMENT>
</SEC-DOCUMENT>