<SEC-DOCUMENT>0000902664-21-002010.txt : 20210322
<SEC-HEADER>0000902664-21-002010.hdr.sgml : 20210322
<ACCEPTANCE-DATETIME>20210322080058
ACCESSION NUMBER:		0000902664-21-002010
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210322
DATE AS OF CHANGE:		20210322

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			TENNANT CO
		CENTRAL INDEX KEY:			0000097134
		STANDARD INDUSTRIAL CLASSIFICATION:	REFRIGERATION & SERVICE INDUSTRY MACHINERY [3580]
		IRS NUMBER:				410572550
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-16210
		FILM NUMBER:		21759928

	BUSINESS ADDRESS:	
		STREET 1:		104000 CLEAN STREET
		CITY:			EDEN PRAIRIE
		STATE:			MN
		ZIP:			55344
		BUSINESS PHONE:		7635401200

	MAIL ADDRESS:	
		STREET 1:		104000 CLEAN STREET
		CITY:			EDEN PRAIRIE
		STATE:			MN
		ZIP:			55344

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TENNANT G H CO
		DATE OF NAME CHANGE:	19700515

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PrimeStone Capital LLP
		CENTRAL INDEX KEY:			0001724316
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		17A CURZON STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			W1J5HS
		BUSINESS PHONE:		44 20 7072 3154

	MAIL ADDRESS:	
		STREET 1:		17A CURZON STREET
		CITY:			LONDON
		STATE:			X0
		ZIP:			W1J5HS
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>p21-1010sc13da.htm
<DESCRIPTION>TENNANT COMPANY
<TEXT>
<HTML>
<HEAD>
<TITLE></TITLE>
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<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
<TR>
    <TD STYLE="vertical-align: top; width: 99%; padding-right: 5.4pt; padding-left: 5.4pt; font: 12pt Times New Roman, Times, Serif; text-align: center">SECURITIES AND EXCHANGE COMMISSION</TD>
    <TD STYLE="width: 1%; font: 12pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">Washington, D.C. 20549</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
<TR>
    <TD STYLE="vertical-align: top; font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 11pt">SCHEDULE 13D/A</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 11pt">Under the Securities Exchange Act of 1934</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 11pt">(Amendment No. 1)*</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.75pt solid">Tennant Company</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 11pt">(Name of Issuer)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.75pt solid">Common Stock,
        $0.375 par value</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 11pt">(Title of Class of Securities)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.75pt solid">880345103</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 11pt">(CUSIP Number)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><DIV STYLE="padding: 0in 0in 1pt; border-bottom: Black 0.5pt solid"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">PrimeStone
        Capital LLP</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">17a Curzon
        Street</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">London,
        UK W1J 5HS</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">Attention:
        Martin Donnelly</FONT></P>
        <P STYLE="font: 10.5pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">+44
        207 072 3154</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt"><I>with
        a copy to:</I></FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">&nbsp;</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">Eleazer
        Klein, Esq.</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">Schulte
        Roth &amp; Zabel LLP</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">919 Third
        Avenue</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">New York,
        New York 10022</FONT></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><FONT STYLE="font-size: 11pt">(212)
        756-2000</FONT></P>
</DIV></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 11pt">(Name, Address and Telephone Number of Person</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 11pt">Authorized to Receive Notices and Communications)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0; text-align: center; border-bottom: Black 0.75pt solid">March 18,
        2021</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"><FONT STYLE="font-size: 11pt">(Date of Event Which Requires Filing of This Statement)</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0">If the filing person has previously filed a statement on Schedule
13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), Rule
13d-1(f) or Rule 13d-1(g), check the following box. [ ]</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: center">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: center"><FONT STYLE="font-size: 11pt">(Page </FONT><FONT STYLE="font-size: 10pt">1</FONT>
<FONT STYLE="font-size: 11pt">of 4 Pages)</FONT></P>

<P STYLE="font: 8pt Times New Roman, Times, Serif; margin: 0">______________________________</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">* The remainder of this cover page shall be filled out for a reporting
person&#8217;s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing
information which would alter disclosures provided in a prior cover page.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">The information required on the remainder of this cover page shall
not be deemed to be &#8220;filed&#8221; for the purpose of Section 18 of the Securities Exchange Act of 1934 (&#8220;Act&#8221;)
or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however,
see the Notes).</P>


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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>1</B></FONT></TD>
    <TD COLSPAN="4" STYLE="border-top: Black 1pt solid; border-right: Black 1pt solid; border-left: Black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 3pt 0 0">NAME OF REPORTING PERSON</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.25in">PrimeStone Capital LLP</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>2</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3pt; padding-right: 6pt; padding-left: 6pt"><FONT STYLE="font-size: 9pt">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP</FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 3pt 0 0">(a) <FONT STYLE="font-family: Wingdings; font-size: 16pt">&uml;</FONT></P>
        <P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">(b) <FONT STYLE="font-family: Wingdings; font-size: 16pt">&uml;</FONT></P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>3</B></FONT></TD>
    <TD COLSPAN="4" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3pt; padding-right: 6pt; padding-left: 6pt"><FONT STYLE="font-size: 9pt">SEC USE ONLY</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>4</B></FONT></TD>
    <TD COLSPAN="4" STYLE="border-right: Black 1pt solid; border-left: Black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 3pt 0 0">SOURCE OF FUNDS</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.25in">AF</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>5</B></FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3pt; padding-bottom: 6pt"><FONT STYLE="font-size: 9pt">CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDING IS REQUIRED PURSUANT TO ITEMS 2(d) or 2(e)</FONT></TD>
    <TD COLSPAN="2" STYLE="border-top: Black 1pt solid; border-right: Black 1pt solid; border-bottom: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3pt; padding-right: 6pt; padding-left: 6pt"><FONT STYLE="font-family: Wingdings; font-size: 16pt">&uml;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>6</B></FONT></TD>
    <TD COLSPAN="4" STYLE="border-right: Black 1pt solid; border-left: Black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 3pt 0 0">CITIZENSHIP OR PLACE OF ORGANIZATION</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.25in">United Kingdom</P></TD></TR>
<TR>
    <TD ROWSPAN="4" STYLE="border-top: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3pt; padding-right: 6pt; padding-left: 6pt; text-align: center"><FONT STYLE="font-size: 9pt">NUMBER OF<BR>
SHARES<BR>
BENEFICIALLY<BR>
OWNED BY<BR>
EACH<BR>
REPORTING<BR>
PERSON WITH:</FONT></TD>
    <TD STYLE="vertical-align: top; border-top: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>7</B></FONT></TD>
    <TD COLSPAN="3" STYLE="vertical-align: top; border-top: Black 1pt solid; border-right: Black 1pt solid; border-left: Black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 3pt 0 0">SOLE VOTING POWER</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.25in">-0-</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>8</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border-top: Black 1pt solid; border-right: Black 1pt solid; border-left: Black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 3pt 0 0">SHARED VOTING POWER</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.25in">761,370</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>9</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border-top: Black 1pt solid; border-right: Black 1pt solid; border-left: Black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 3pt 0 0">SOLE DISPOSITIVE POWER</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.25in">-0-</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>10</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border: Black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 3pt 0 0">SHARED DISPOSITIVE POWER</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.25in">761,370</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>11</B></FONT></TD>
    <TD COLSPAN="4" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 3pt 0 0">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH PERSON</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.25in">761,370</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>12</B></FONT></TD>
    <TD COLSPAN="3" STYLE="border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3pt; padding-right: 6pt; padding-left: 6pt"><FONT STYLE="font-size: 9pt">CHECK IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES</FONT></TD>
    <TD STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3pt; padding-right: 6pt; padding-left: 6pt"><FONT STYLE="font-family: Wingdings; font-size: 16pt">&uml;</FONT></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>13</B></FONT></TD>
    <TD COLSPAN="4" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 3pt 0 0">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.25in">4.1%</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-top: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; font: 12pt Times New Roman, Times, Serif; padding-top: 3.8pt; padding-bottom: 6pt; text-align: center"><FONT STYLE="font-size: 16pt"><B>14</B></FONT></TD>
    <TD COLSPAN="4" STYLE="border-right: Black 1pt solid; border-bottom: Black 1pt solid; border-left: Black 1pt solid; padding-right: 6pt; padding-left: 6pt">
        <P STYLE="font: 9pt Times New Roman, Times, Serif; margin: 3pt 0 0">TYPE OF REPORTING PERSON</P>
        <P STYLE="font: 11pt Times New Roman, Times, Serif; margin: 0 0 6pt 0.25in">PN; IA</P></TD></TR>
<TR>
    <TD STYLE="width: 16%">&nbsp;</TD>
    <TD STYLE="width: 13%">&nbsp;</TD>
    <TD STYLE="width: 59%">&nbsp;</TD>
    <TD STYLE="width: 1%">&nbsp;</TD>
    <TD STYLE="width: 11%">&nbsp;</TD></TR>
</TABLE>

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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">This Amendment No. 1 (&#8220;<U>Amendment No. 1</U>&#8221;) amends
and supplements the statement on Schedule 13D filed with the Securities Exchange Commission on December 13, 2017 (the &#8220;<U>Original
Schedule 13D</U>&#8221;, and together with this Amendment No. 1, the &#8220;<U>Schedule 13D</U>&#8221;), with respect to the shares
of common stock, par value $0.375 per share (the &#8220;<U>Common Stock</U>&#8221;), of Tennant Company (the &#8220;<U>Issuer</U>&#8221;).
Capitalized terms used herein and not otherwise defined in this Amendment No. 1 have the meanings set forth in the Schedule 13D.
This Amendment No. 1 amends Items 3 and 5 as set forth below. This Amendment No. 1 constitutes an &#8220;exit filing&#8221; with
respect to the Schedule 13D for the Reporting Person.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.1pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 11%; padding-right: 5.75pt; padding-left: 5.75pt; font: 12pt Times New Roman, Times, Serif"><B>Item 3.</B></TD>
    <TD STYLE="width: 89%; padding-right: 5.75pt; padding-left: 5.75pt; font: 12pt Times New Roman, Times, Serif"><B>SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION</B></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">Item 3 of the Schedule 13D is hereby amended and restated as follows:</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">The Reporting Person used approximately $48,436,456 (including brokerage commissions) of the working capital of the PrimeStone Fund in the aggregate to purchase the shares of Common Stock reported in this Amendment No. 1. </TD></TR>
</TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.1pt">&nbsp;</FONT></P>

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<TR STYLE="vertical-align: top">
    <TD STYLE="width: 11%; padding-right: 5.75pt; padding-left: 5.75pt; font: 12pt Times New Roman, Times, Serif"><B>Item 5.</B></TD>
    <TD STYLE="width: 89%; padding-right: 5.75pt; padding-left: 5.75pt; font: 12pt Times New Roman, Times, Serif"><B>INTEREST IN SECURITIES OF THE ISSUER</B></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD COLSPAN="2" STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">Item 5 of the Schedule 13D is hereby amended and restated as follows:</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">(a)</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">See rows (11) and (13) of the cover pages to this Amendment No.
1 for the aggregate number of Common Stock and percentages of the Common Stock beneficially owned by the Reporting Person. The
percentages used in this Amendment No. 1 are calculated based upon 18,589,385 shares of Common Stock outstanding as of March 5,
2021, as reported in the Issuer&rsquo;s definitive proxy statement on Form DEF14A for the 2021 annual meeting of the shareholders,
filed with the Securities and Exchange Commission on March 17, 2021..</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">(b)</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">See rows (7) through (10) of the cover pages to this Amendment No. 1 for the number of shares of Common Stock as to which the Reporting Person has the sole or shared power to vote or direct the vote and sole or shared power to dispose or to direct the disposition.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">(c)</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">The transactions in the Common Stock effected within the past sixty days by the Reporting Person, which were all in the open market, are set forth in <U>Annex A</U>, and are incorporated herein by reference.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">(d)</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">The PrimeStone Fund has the right to receive dividends from, and the proceeds from the sale of, the shares of Common Stock reported herein.</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">(e)</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">March 18, 2021</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD>
    <TD STYLE="font: 12pt Times New Roman, Times, Serif; padding-right: 5.75pt; padding-left: 5.75pt">&nbsp;</TD></TR>
</TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0"><FONT STYLE="letter-spacing: -0.1pt">&nbsp;</FONT></P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-align: center"><B>SIGNATURES</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 12pt; text-indent: 1in">After reasonable inquiry and to the best
of his or its knowledge and belief, each of the undersigned certifies that the information set forth in this statement is true,
complete and correct.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">Date: March 22, 2021</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 12pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2"><B>PRIMESTONE CAPITAL LLP</B></TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD COLSPAN="2">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="width: 51%">&nbsp;</TD>
    <TD STYLE="width: 6%">By:</TD>
    <TD STYLE="width: 43%; border-bottom: Black 1pt solid">/s/ Martin Donnelly</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Martin Donnelly</TD></TR>
<TR STYLE="vertical-align: top">
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>Chief Compliance Officer</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><U>Annex A</U></B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">This Schedule sets forth
information with respect to each purchase and sale of Common Stock which was effectuated by the Reporting Person during the past
sixty days. All transactions were effectuated in the open market through a broker.</P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 11pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
<TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; width: 33%; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><B>Trade Date</B></TD>
    <TD STYLE="white-space: nowrap; width: 36%; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><B>Common Stock Purchased (Sold)</B></TD>
    <TD STYLE="white-space: nowrap; width: 31%; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><B>Price ($)</B></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">3/3/2021</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">(3,400)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">78.77</FONT></TD></TR>
<TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">3/4/2021</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">(614)</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">78.23</FONT></TD></TR>
<TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">3/5/2021</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">(7,002)</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">78.24</FONT></TD></TR>
<TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">3/8/2021</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">(14,058)</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">79.98</FONT></TD></TR>
<TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">3/9/2021</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">(2,648)</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">79.07</FONT></TD></TR>
<TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">3/10/2021</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">(8,250)</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">80.38</FONT></TD></TR>
<TR>
    <TD STYLE="white-space: nowrap; vertical-align: bottom; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">3/18/2021</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">(29,847)</FONT></TD>
    <TD STYLE="white-space: nowrap; vertical-align: top; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">80.44</FONT></TD></TR>
<TR STYLE="vertical-align: bottom">
    <TD STYLE="white-space: nowrap; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">3/19/2021</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center"><FONT STYLE="font-size: 11pt">(6,928)</FONT></TD>
    <TD STYLE="white-space: nowrap; padding-right: 5.75pt; padding-left: 5.75pt; text-align: center">80.14</TD></TR>
</TABLE>
<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0">&nbsp;</P>


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