<SEC-DOCUMENT>0001013857-21-000145.txt : 20210616
<SEC-HEADER>0001013857-21-000145.hdr.sgml : 20210616
<ACCEPTANCE-DATETIME>20210616164655
ACCESSION NUMBER:		0001013857-21-000145
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210614
FILED AS OF DATE:		20210616
DATE AS OF CHANGE:		20210616

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KOUNINIS EFSTATHIOS A
		CENTRAL INDEX KEY:			0001353196

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-11859
		FILM NUMBER:		211022038

	MAIL ADDRESS:	
		STREET 1:		26 GRANDVIEW DRIVE
		CITY:			DOVER
		STATE:			NH
		ZIP:			03820

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PEGASYSTEMS INC
		CENTRAL INDEX KEY:			0001013857
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER PROCESSING & DATA PREPARATION [7374]
		IRS NUMBER:				042787865
		STATE OF INCORPORATION:			MA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		ONE ROGERS STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142-1209
		BUSINESS PHONE:		6173749600

	MAIL ADDRESS:	
		STREET 1:		ONE ROGERS STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142-1209
</SEC-HEADER>
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    <footnotes>
        <footnote id="F1">Represents a 5% vesting on June 12, 2021, with a release date of June 14, 2021, the first business day after vesting. The original grant was 1,856 restricted stock units, with 20% vesting on September 12, 2017, and the remaining 80% vesting in equal quarterly installments over the remaining four years.</footnote>
        <footnote id="F2">Represents the exercise price of the stock options referenced in Table II and Mr. Kouninis's tax liability, which were paid by way of the Company withholding shares of equal value.</footnote>
        <footnote id="F3">Does not include shares of common stock subject to unvested restricted stock units and/or options awards.</footnote>
        <footnote id="F4">Each restricted stock unit represents the right to receive, following vesting, one share of the issuer's common stock.</footnote>
        <footnote id="F5">Once vested, the shares of common stock are not subject to expiration.</footnote>
        <footnote id="F6">Options vested 20% on March 9, 2017, with the remaining 80% vesting in equal quarterly installments over the next four years.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Donald L. Lancaster, Attorney-in-Fact for Efstathios A. Kouninis</signatureName>
        <signatureDate>2021-06-16</signatureDate>
    </ownerSignature>
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