    <SEC-DOCUMENT>0001387131-21-005287-index.html : 20210504
    <SEC-HEADER>0001387131-21-005287.hdr.sgml : 20210504
    <ACCEPTANCE-DATETIME>20210504161904
    ACCESSION NUMBER:		0001387131-21-005287
    CONFORMED SUBMISSION TYPE:	DEFA14A
    PUBLIC DOCUMENT COUNT:		32
    FILED AS OF DATE:		20210504
    DATE AS OF CHANGE:		20210504

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			OneSpan Inc.
    		CENTRAL INDEX KEY:			0001044777
    		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
    		IRS NUMBER:				364169320
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		DEFA14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	000-24389
    		FILM NUMBER:		21888743

    	BUSINESS ADDRESS:
    		STREET 1:		121 W WACKER DR.
    		STREET 2:		STE 2050
    		CITY:			CHICAGO
    		STATE:			IL
    		ZIP:			60601
    		BUSINESS PHONE:		3127664001

    	MAIL ADDRESS:
    		STREET 1:		121 W WACKER DR.
    		STREET 2:		STE 2050
    		CITY:			CHICAGO
    		STATE:			IL
    		ZIP:			60601

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	One Span Inc.
    		DATE OF NAME CHANGE:	20180706

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	VASCO DATA SECURITY INTERNATIONAL INC
    		DATE OF NAME CHANGE:	19970821
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>DEFA14A
    <SEQUENCE>1
    <FILENAME>ospn-defa14a_050421.htm
    <DESCRIPTION>ADDITIONAL DEFINITIVE PROXY SOLICITING MATERIALS
    <TEXT>
    Document 1 - file: ospn-defa14a_050421.htm

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    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>ospn_img001.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 2 - file: ospn_img001.gif

    </DOCUMENT>
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    <FILENAME>ospn_img002.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 3 - file: ospn_img002.gif

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    <SEQUENCE>4
    <FILENAME>ospn_img003.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 4 - file: ospn_img003.gif

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    <FILENAME>ospn_img004.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 5 - file: ospn_img004.gif

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    <FILENAME>ospn_img005.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 6 - file: ospn_img005.gif

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    <FILENAME>ospn_img006.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 7 - file: ospn_img006.gif

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    <FILENAME>ospn_img007.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 8 - file: ospn_img007.gif

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    <FILENAME>ospn_img008.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 9 - file: ospn_img008.gif

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    <FILENAME>ospn_img009.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 10 - file: ospn_img009.gif

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 11 - file: ospn_img010.gif

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    <FILENAME>ospn_img011.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 12 - file: ospn_img011.gif

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    <FILENAME>ospn_img012.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 13 - file: ospn_img012.gif

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    <FILENAME>ospn_img013.gif
    <DESCRIPTION>GRAPHIC
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    Document 14 - file: ospn_img013.gif

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 15 - file: ospn_img014.gif

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 16 - file: ospn_img015.gif

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    <FILENAME>ospn_img016.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 17 - file: ospn_img016.gif

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    <FILENAME>ospn_img017.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 18 - file: ospn_img017.gif

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    <FILENAME>ospn_img018.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 19 - file: ospn_img018.gif

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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 20 - file: ospn_img019.gif

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    <SEQUENCE>21
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    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 21 - file: ospn_img020.gif

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    <FILENAME>ospn_img021.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 22 - file: ospn_img021.gif

    </DOCUMENT>
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    <SEQUENCE>23
    <FILENAME>ospn_img022.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 23 - file: ospn_img022.gif

    </DOCUMENT>
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    <SEQUENCE>24
    <FILENAME>ospn_img023.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 24 - file: ospn_img023.gif

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    <SEQUENCE>25
    <FILENAME>ospn_img024.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 25 - file: ospn_img024.gif

    </DOCUMENT>
    <DOCUMENT>
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    <SEQUENCE>26
    <FILENAME>ospn_img025.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 26 - file: ospn_img025.gif

    </DOCUMENT>
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    <SEQUENCE>27
    <FILENAME>ospn_img026.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 27 - file: ospn_img026.gif

    </DOCUMENT>
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    <SEQUENCE>28
    <FILENAME>ospn_img027.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 28 - file: ospn_img027.gif

    </DOCUMENT>
    <DOCUMENT>
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    <SEQUENCE>29
    <FILENAME>ospn_img028.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 29 - file: ospn_img028.gif

    </DOCUMENT>
    <DOCUMENT>
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    <SEQUENCE>30
    <FILENAME>ospn_img029.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 30 - file: ospn_img029.gif

    </DOCUMENT>
    <DOCUMENT>
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    <SEQUENCE>31
    <FILENAME>ospn_img030.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 31 - file: ospn_img030.gif

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>32
    <FILENAME>ospn_img031.gif
    <DESCRIPTION>GRAPHIC
    <TEXT>
    Document 32 - file: ospn_img031.gif

    </DOCUMENT>
    </SEC-DOCUMENT>