<SEC-DOCUMENT>0001209191-21-056457.txt : 20210916
<SEC-HEADER>0001209191-21-056457.hdr.sgml : 20210916
<ACCEPTANCE-DATETIME>20210916180724
ACCESSION NUMBER:		0001209191-21-056457
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210914
FILED AS OF DATE:		20210916
DATE AS OF CHANGE:		20210916

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Cureton Kevin
		CENTRAL INDEX KEY:			0001563513

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22333
		FILM NUMBER:		211258821

	MAIL ADDRESS:	
		STREET 1:		1319 MARQUETTE DRIVE
		CITY:			ROMEOVILLE
		STATE:			IL
		ZIP:			60446

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NANOPHASE TECHNOLOGIES Corp
		CENTRAL INDEX KEY:			0000883107
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS PRIMARY METAL PRODUCTS [3390]
		IRS NUMBER:				363687863
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1319 MARQUETTE DRIVE
		CITY:			ROMEOVILLE
		STATE:			IL
		ZIP:			60446
		BUSINESS PHONE:		6303231200

	MAIL ADDRESS:	
		STREET 1:		1319 MARQUETTE DRIVE
		CITY:			ROMEOVILLE
		STATE:			IL
		ZIP:			60446

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NANOPHASE TECHNOLOGIES CORPORATION
		DATE OF NAME CHANGE:	19970305
</SEC-HEADER>
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<SEQUENCE>1
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<DESCRIPTION>FORM 4 SUBMISSION
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    <footnotes>
        <footnote id="F1">Mr. Cureton has exercised shares from his November 28, 2012 option grant to avoid the risk of expiration.  In light of the blackout requirements within the Company's Policy on Insider Trading, limited trading windows exist during which these transactions can be completed.  Subsequent to exercise, he plans to sell some of the exercised shares reported herein in order to satisfy the costs of exercise and the required income tax withholdings.</footnote>
        <footnote id="F2">Mr. Cureton has exercised shares from his November 28, 2012 option grant to avoid the risk of expiration. In light of the blackout requirements within the Company's Policy on Insider Trading, limited trading windows exist during which these transactions can be completed. The sales reported herein were effected in order to satisfy the costs of exercise and the required income tax withholdings.</footnote>
        <footnote id="F3">Mr. Cureton has exercised shares from his November 28, 2012 option grant to avoid the risk of expiration.  In light of the blackout requirements within the Company's Policy on Insider Trading, limited trading windows exist during which these transactions can be completed.  Subsequent to exercise, he plans to sell some of the shares exercised in order to satisfy the costs of exercise and the required income tax withholdings.</footnote>
        <footnote id="F4">Subject to certain restrictions, beginning on this date, options vest in three equal annual installments.</footnote>
    </footnotes>

    <remarks>Mr. Cureton has exercised shares from his November 28, 2012 option grant to avoid the risk of expiration.  In light of the blackout requirements within the Company's Policy on Insider Trading, limited trading windows exist during which these transactions can be completed.  Subsequent to exercise, he has sold the shares reported above in order to satisfy the costs of exercise and the required income tax withholdings.</remarks>

    <ownerSignature>
        <signatureName>/s/ Jess Jankowski under UPA for Kevin Cureton</signatureName>
        <signatureDate>2021-09-16</signatureDate>
    </ownerSignature>
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</SEC-DOCUMENT>
