<SEC-DOCUMENT>0001209191-21-029814.txt : 20210504
<SEC-HEADER>0001209191-21-029814.hdr.sgml : 20210504
<ACCEPTANCE-DATETIME>20210504155022
ACCESSION NUMBER:		0001209191-21-029814
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210501
FILED AS OF DATE:		20210504
DATE AS OF CHANGE:		20210504

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Pelzer Francis J.
		CENTRAL INDEX KEY:			0001492125

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26041
		FILM NUMBER:		21888179

	MAIL ADDRESS:	
		STREET 1:		CONCUR TECHNOLOGIES, INC.
		STREET 2:		18400 NE UNION HILL RD.
		CITY:			REDMOND
		STATE:			WA
		ZIP:			98052

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			F5 NETWORKS, INC.
		CENTRAL INDEX KEY:			0001048695
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
		IRS NUMBER:				911714307
		STATE OF INCORPORATION:			WA
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		401 ELLIOTT AVENUE WEST
		CITY:			SEATTLE
		STATE:			WA
		ZIP:			98119
		BUSINESS PHONE:		2062725555

	MAIL ADDRESS:	
		STREET 1:		401 ELLIOTT AVENUE WEST
		CITY:			SEATTLE
		STATE:			WA
		ZIP:			98119

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	F5 NETWORKS INC
		DATE OF NAME CHANGE:	19990308

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	F5 LABS INC
		DATE OF NAME CHANGE:	19990305
</SEC-HEADER>
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    <footnotes>
        <footnote id="F1">Shares acquired upon vesting of the August 1, 2018, November 1, 2018, November 1, 2019 and November 2, 2020 awards of service-based Restricted Stock Units.</footnote>
        <footnote id="F2">Each Restricted Stock Unit represents a contingent right to receive one share of F5 Networks, Inc. Common Stock on the vest date.</footnote>
        <footnote id="F3">This November 2, 2020 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2021.</footnote>
        <footnote id="F4">If the reporting person continues to provide services to the Company through the vest date, the corresponding number of shares of Common Stock of F5 Networks, Inc. will be issued to the reporting person on the vest date.</footnote>
        <footnote id="F5">Twenty five percent (25%) of this August 1, 2018 award of service-based Restricted Stock Units vests on August 1, 2019, and the remaining seventy five percent (75%) vests in twelve equal quarterly increments beginning November 1, 2019.</footnote>
        <footnote id="F6">This November 1, 2018 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2019.</footnote>
        <footnote id="F7">This November 1, 2019 award of service-based Restricted Stock Units vests in twelve equal quarterly increments beginning February 1, 2020.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Scot F. Rogers by Power of Attorney</signatureName>
        <signatureDate>2021-05-04</signatureDate>
    </ownerSignature>
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</DOCUMENT>
</SEC-DOCUMENT>
