<SEC-DOCUMENT>0001172661-23-001263.txt : 20230214
<SEC-HEADER>0001172661-23-001263.hdr.sgml : 20230214
<ACCEPTANCE-DATETIME>20230214150818
ACCESSION NUMBER:		0001172661-23-001263
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230214
DATE AS OF CHANGE:		20230214

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DIGI INTERNATIONAL INC
		CENTRAL INDEX KEY:			0000854775
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER COMMUNICATIONS EQUIPMENT [3576]
		IRS NUMBER:				411532464
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-40655
		FILM NUMBER:		23627728

	BUSINESS ADDRESS:	
		STREET 1:		9350 EXCELSIOR BLVD.
		STREET 2:		SUITE 700
		CITY:			HOPKINS
		STATE:			MN
		ZIP:			55343
		BUSINESS PHONE:		(952) 912-3444

	MAIL ADDRESS:	
		STREET 1:		9350 EXCELSIOR BLVD.
		STREET 2:		SUITE 700
		CITY:			HOPKINS
		STATE:			MN
		ZIP:			55343

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MAIRS & POWER INC
		CENTRAL INDEX KEY:			0001070134
		IRS NUMBER:				410844499
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		30 E. 7TH STREET, SUITE 2500
		CITY:			ST PAUL
		STATE:			MN
		ZIP:			55101
		BUSINESS PHONE:		6512228478

	MAIL ADDRESS:	
		STREET 1:		30 E. 7TH STREET, SUITE 2500
		CITY:			ST PAUL
		STATE:			MN
		ZIP:			55101
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>mairspower-dgii123122a3.htm
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: left"><B>&nbsp;</B></P>

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

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>SECURITIES AND EXCHANGE
COMMISSION<BR> Washington, DC 20549</B></P>

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

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>SCHEDULE 13G/A</B></P>

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

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Under the Securities
Exchange Act of 1934</B></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>(Amendment No. 3)*</B></P>

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><BR STYLE="mso-special-character: line-break">
<BR STYLE="mso-special-character: line-break">
<FONT STYLE="font-size: 24pt"><B>DIGI International Inc.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

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<TR STYLE="vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">(Name of Issuer)</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>Common Stock, par value $0.01 per share</B></P>

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    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">(Title of Class of Securities)</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>&nbsp;</B></P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B>253798102</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B></B></P></TD></TR>
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    <TD STYLE="border-bottom: windowtext 1pt solid; font: bold 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center"></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">(CUSIP Number)</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding-right: 5.4pt; padding-left: 5.4pt">
                <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="border-bottom: windowtext 1pt solid; font: bold 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">
    December 31, 2022</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; padding-right: 5.4pt; padding-left: 5.4pt; text-align: center">(Date of Event Which Requires Filing of this Statement)</TD></TR>
</TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Check the appropriate box to designate the
rule pursuant to which this Schedule is filed:</P>

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

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify"></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify"><FONT STYLE="font-family: Wingdings">x</FONT><FONT STYLE="font-size: 10pt">&#9;Rule
13d-1(b)</FONT></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify"></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify"><FONT STYLE="font-family: Wingdings">o</FONT><FONT STYLE="font-size: 10pt">&#9;Rule
13d-1(c)</FONT></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify"><FONT STYLE="font-family: Wingdings">o</FONT><FONT STYLE="font-size: 10pt">&#9;Rule
13d-1(d)</FONT></P>

<P STYLE="font: 12pt Times New Roman, Times, Serif; margin: 0 0 0 0.5in; text-align: justify">&nbsp;</P>

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

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

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">The information required in the remainder of
this cover page shall not be deemed to be &ldquo;filed&rdquo; for the purpose of Section 18 of the Securities Exchange Act of 1934
(&ldquo;Act&rdquo;) 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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</td>
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<div style="TEXT-ALIGN: center"><FONT STYLE="font: 10pt times new roman">&#160;<B>SCHEDULE 13G/A</B></FONT><B></B></div>
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<td align="left" valign="top" width="30%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-TOP: black 2px solid; BORDER-RIGHT: black 2px solid">
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<table cellpadding="3" cellspacing="0" width="100%" style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td align="left" width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: medium none; BORDER-RIGHT: medium none"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">&#160;</font></td>
<td width="12%" style="BORDER-BOTTOM: black 2px solid"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;</font></td>
<td width="8%" style="BORDER-BOTTOM: black 2px solid">&#160;</td>
<td width="66%" style="BORDER-BOTTOM: black 2px solid">&#160;</td>
<td align="left" width="6%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: medium none">&#160;</td>
</tr><tr>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">1</font></div>
</td>
<td colspan="4" width="92%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt">NAME OF REPORTING </font>PERSONS</FONT></DIV>

<DIV STYLE="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt; text-align: left"><FONT STYLE="display: inline; font: 10pt times new roman"></font></DIV>
<DIV STYLE="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt; text-align: left">&nbsp;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block">Mairs and Power, Inc.</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"></DIV>

<DIV STYLE="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt; text-align: left"></div>
</td>
</tr><tr>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">2</font></div>
</td>
<td colspan="3" width="86%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP </font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(a) <font style="DISPLAY: inline; FONT-FAMILY: wingdings">o</font></font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">(b) <font style="DISPLAY: inline; FONT-FAMILY: wingdings">o</font></font></div>
</td>
<td nowrap width="6%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">&#160;</font></div>
</td>
</tr><tr>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">3</font></div>
</td>
<td colspan="4" width="92%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">SEC USE ONLY</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
</td>
</tr><tr>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">4</font></div>
</td>
<td colspan="4" width="92%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">CITIZENSHIP OR PLACE OF ORGANIZATION</FONT></DIV>
<DIV ALIGN="LEFT" STYLE="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt"><FONT STYLE="display: inline; font: 10pt times new roman">&nbsp;</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify">Minnesota</div>
</td>
</tr><tr>
<td colspan="2" rowspan="4" width="20%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">NUMBER OF</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">SHARES</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">BENEFICIALLY</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">OWNED BY</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">EACH</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">REPORTING</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">PERSON</font></div>

<div style="TEXT-ALIGN: center; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">WITH</font></div>
</td>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">5</font></div>
</td>
<td colspan="2" width="72%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">SOLE VOTING POWER</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</DIV>

<DIV STYLE="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt; text-align: justify">1,319,576</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"></div>
</td>
</tr><tr>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">6</font></div>
</td>
<td colspan="2" width="72%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">SHARED VOTING POWER</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"> 0</div>
</td>
</tr><tr>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">7</font></div>
</td>
<td colspan="2" width="72%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">SOLE DISPOSITIVE POWER</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</DIV>

<DIV STYLE="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt; text-align: left">1,324,118</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><FONT STYLE="font: 10pt times new roman"></div>
</td>
</tr><tr>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">8</font></div>
</td>
<td colspan="2" width="72%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">SHARED DISPOSITIVE POWER</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">
0</div>
</div>
</td>
</tr><tr>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">9</font></div>
</td>
<td colspan="4" width="92%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"></div>
1,324,118</div>
</td>
</tr><tr>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">10</font></div>
</td>
<td colspan="3" width="86%" style="BORDER-BOTTOM: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">CHECK IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES </font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
</td>
<td valign="top" width="6%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt"><font style="DISPLAY: inline; FONT-FAMILY: wingdings; FONT-SIZE: 10pt">o</font></font></div>
</td>
</tr><tr>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">11</font></div>
</td>
<td colspan="4" width="92%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)</font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">3.7%</div>
</td>
</tr><tr>
<td width="8%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: center"><font style="FONT-FAMILY: times new roman; FONT-SIZE: 14pt">12</font></div>
</td>
<td colspan="4" width="92%" style="BORDER-BOTTOM: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt">TYPE OF REPORTING PERSON </font></div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div>

<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left">IA</div>
</td>
</tr></table>

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<table cellpadding="8" cellspacing="0" width="100%" style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td align="left" valign="top" width="30%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-TOP: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">CUSIP
No.&#160;253798102</div>
</td>
<td valign="top" width="40%">
<div style="TEXT-ALIGN: center"><FONT STYLE="font: 10pt times new roman">&#160;<B>SCHEDULE 13G/A</B></FONT><B></B></div>
</td>
<td align="left" valign="top" width="30%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-TOP: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: right; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Page&#160;3
of&#160;6 Pages</font></div>
</td>
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<TD NOWRAP STYLE="width: 33pt; text-align: left"><FONT STYLE="letter-spacing: -0.15pt"><B>Item 1.</B></FONT></TD><TD STYLE="width: 5pt"></TD><TD STYLE="text-align: left"><FONT STYLE="letter-spacing: -0.15pt"><B>(a)&#9;Name of Issuer</B></FONT></TD>
</TR></TABLE></div>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify">DIGI International Inc.</P>

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<TD STYLE="text-align: left; width: 33pt"><FONT STYLE="letter-spacing: -0.15pt"><B>Item 1.<FONT STYLE="letter-spacing: -0.15pt"><B></B></FONT></TD><TD STYLE="width: 5pt"></TD><TD STYLE="text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"><B>(b)&#9;Address of Issuer&rsquo;s Principal
Executive Offices</B></FONT></TD>
</TR></TABLE>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify">9350 Excelsior Blvd. Suite 700 Hopkins Minnesota 55343</P>

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<TD STYLE="width: 33pt; text-align: left"><FONT STYLE="letter-spacing: -0.15pt"><B>Item 2.</B></FONT></TD><TD STYLE="width: 5pt"></TD><TD STYLE="text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"><B>(a)&#9;Name of Person Filing:</B></FONT></TD>
</TR></TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"></P></DIV>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify">Mairs
and Power, Inc.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify">&nbsp;</P>

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<TD STYLE="width: 33pt; text-align: left"><FONT STYLE="letter-spacing: -0.15pt"><B>Item 2.</B></FONT></TD><TD STYLE="width: 5pt"></TD><TD STYLE="text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"><B>(b)&#9;Address
                                                                                                                                      of
                                                                                                                                      Principal
                                                                                                                                      Business Office:</B></FONT></TD>
</TR></TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"></P></DIV>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify">30
East 7th Street, Suite 2500, St. Paul, MN 55101</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify">&nbsp;</P>

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<TD STYLE="width: 33pt; text-align: left"><FONT STYLE="letter-spacing: -0.15pt"><B>Item 2.</B></FONT></TD><TD STYLE="width: 5pt"></TD><TD STYLE="text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"><B>(c)&#9; Citizenship:</B></FONT></TD>
</TR></TABLE>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify">Minnesota</P>


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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify">&nbsp;&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"></P>

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<TD STYLE="width: 33pt; text-align: left"><B>Item 2.</TD><TD STYLE="width: 5pt"></TD><TD STYLE="text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"><B>(d)&#9;Title of Class of Securities</B></FONT></TD>
</TR></TABLE>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify">Common
Stock, par value $0.01 per share (the &ldquo;Common Stock&rdquo;)</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 0pt; margin-left: 44pt; text-indent: 0pt; text-align: justify">&nbsp;</P>

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<TD STYLE="width: 33pt; text-align: left"><FONT STYLE="letter-spacing: -0.15pt"><B><B>Item 2.</B></FONT></TD><TD STYLE="width: 5pt"></TD><TD STYLE="text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"><B>(e) CUSIP No.: </B></FONT></TD>
</TR></TABLE>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify">253798102</P>


<DIV STYLE="text-align: center"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>


<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>
<table cellpadding="8" cellspacing="0" width="100%" style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td align="left" valign="top" width="30%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-TOP: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">CUSIP No.&#160;&#160;253798102</div>
</td>
<td valign="top" width="40%">
<div style="TEXT-ALIGN: center"><FONT STYLE="font: 10pt times new roman">&#160;<B>SCHEDULE 13G/A</B></FONT></div>
</td>
<td align="left" valign="top" width="30%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-TOP: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: right; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Page&#160;4
of 6 Pages</font></div>
</td>
</tr></table>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P></DIV>

<TABLE CELLPADDING="0" CELLSPACING="0" STYLE="border-collapse: collapse; width: 100%">
<TR STYLE="vertical-align: bottom; text-align: center">
    <TH>&nbsp;</TH></TR>
<TR STYLE="vertical-align: top; text-align: left">
    <TD STYLE="width: 100%"><div align="center"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"><B></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt 1in; text-align: justify; text-indent: -1in"><B>Item 3.&#9;If
this statement is filed pursuant to &sect;&sect;240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:</B></P></TD></TR>
</TABLE><DIV STYLE="text-align: center"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 12pt 1in; text-align: justify; text-indent: -1in"></P></DIV>

<TABLE WIDTH="100%" CELLPADDING="0" CELLSPACING="0" STYLE="Font-Size: 10pt"><TR VALIGN="TOP"><TD ALIGN="LEFT" WIDTH="22pt">&nbsp;</TD>
     <TD ALIGN="LEFT" WIDTH="22pt">(a)</TD>
     <TD ALIGN="LEFT" WIDTH="22pt"><FONT FACE="WINGDINGS" SIZE="2" COLOR="#000000">&#168;</FONT></TD>
     <TD>Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);</TD>
</TR>
<TR VALIGN="TOP" STYLE="Font-Size: 6pt">
     <TD>&nbsp;</TD>
</TR>
<TR VALIGN="TOP">
     <TD>&nbsp;</TD>
     <TD ALIGN="LEFT">(b)</TD>
     <TD ALIGN="LEFT"><FONT FACE="WINGDINGS" SIZE="2" COLOR="#000000">&#168;</FONT></TD>
     <TD>Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);</TD>
</TR>
<TR VALIGN="TOP" STYLE="Font-Size: 6pt">
     <TD>&nbsp;</TD>
</TR>
<TR VALIGN="TOP">
     <TD>&nbsp;</TD>
     <TD ALIGN="LEFT">(c)</TD>
     <TD ALIGN="LEFT"><FONT FACE="WINGDINGS" SIZE="2" COLOR="#000000">&#168;</FONT></TD>
     <TD>Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);</TD>
</TR>
<TR VALIGN="TOP" STYLE="Font-Size: 6pt">
     <TD>&nbsp;</TD>
</TR>
<TR VALIGN="TOP">
     <TD>&nbsp;</TD>
     <TD ALIGN="LEFT">(d)</TD>
     <TD ALIGN="LEFT"><FONT FACE="WINGDINGS" SIZE="2" COLOR="#000000">&#168;</FONT></TD>
     <TD>Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);</TD>
</TR>
<TR VALIGN="TOP" STYLE="Font-Size: 6pt">
     <TD>&nbsp;</TD>
</TR>
<TR VALIGN="TOP">
     <TD>&nbsp;</TD>
     <TD ALIGN="LEFT">(e)</TD>
     <TD ALIGN="LEFT"><FONT FACE="WINGDINGS" SIZE="2" COLOR="#000000">x</FONT></TD>
     <TD>An investment adviser in accordance with &#167;240.13d-1(b)(1)(ii)(E);</TD>
</TR>
<TR VALIGN="TOP" STYLE="Font-Size: 6pt">
     <TD>&nbsp;</TD>
</TR>
<TR VALIGN="TOP">
     <TD>&nbsp;</TD>
     <TD ALIGN="LEFT">(f)</TD>
     <TD ALIGN="LEFT"><FONT FACE="WINGDINGS" SIZE="2" COLOR="#000000">&#168;</FONT></TD>
     <TD>An employee benefit plan or endowment fund in accordance with &#167;240.13d-1(b)(1)(ii)(F);</TD>
</TR>
<TR VALIGN="TOP" STYLE="Font-Size: 6pt">
     <TD>&nbsp;</TD>
</TR>
<TR VALIGN="TOP">
     <TD>&nbsp;</TD>
     <TD ALIGN="LEFT">(g)</TD>
     <TD ALIGN="LEFT"><FONT FACE="WINGDINGS" SIZE="2" COLOR="#000000">&#168;</FONT></TD>
     <TD>A parent holding company or control person in accordance with &#167;240.13d-1(b)(1)(ii)(G);</TD>
</TR>
<TR VALIGN="TOP" STYLE="Font-Size: 6pt">
     <TD>&nbsp;</TD>
</TR>
<TR VALIGN="TOP">
     <TD>&nbsp;</TD>
     <TD ALIGN="LEFT">(h)</TD>
     <TD ALIGN="LEFT"><FONT FACE="WINGDINGS" SIZE="2" COLOR="#000000">&#168;</FONT></TD>
     <TD>A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);</TD>
</TR>
<TR VALIGN="TOP" STYLE="Font-Size: 6pt">
     <TD>&nbsp;</TD>
</TR>
<TR VALIGN="TOP">
     <TD>&nbsp;</TD>
     <TD ALIGN="LEFT">(i)</TD>
     <TD ALIGN="LEFT"><FONT FACE="WINGDINGS" SIZE="2" COLOR="#000000">&#168;</FONT></TD>
     <TD>A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the
     Investment Company Act of 1940 (15 U.S.C. 80a-3);</TD>
</TR>
<TR VALIGN="TOP" STYLE="Font-Size: 6pt">
     <TD>&nbsp;</TD>
</TR>
<TR VALIGN="TOP">
     <TD>&nbsp;</TD>
     <TD ALIGN="LEFT">(j)</TD>
     <TD ALIGN="LEFT"><FONT FACE="WINGDINGS" SIZE="2" COLOR="#000000">&#168;</FONT></TD>
     <TD>A non-U.S. institution in accordance with &#167;240.13d-1(b)(1)(ii)(J);</TD></TR>                                                                                                                                                                                                                              <TR STYLE="vertical-align: top">
<TR VALIGN="TOP" STYLE="Font-Size: 6pt">
     <TD>&nbsp;</TD>
</TR>
<TR VALIGN="TOP">
     <TD>&nbsp;</TD>
     <TD ALIGN="LEFT">(k)</TD>
     <TD ALIGN="LEFT"><FONT FACE="WINGDINGS" SIZE="2" COLOR="#000000">&#168;</FONT></TD>
     <TD>A group, in accordance with &#167;240.13d-1(b)(1)(ii)(K). If filing as a non-U.S. institution in accordance with &#167;240.13d-1(b)(1)(ii)(J),
     please specify the type of institution:<U>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</U></TD></TR>
<TR STYLE="vertical-align: top">
     <TD>&nbsp;</TD>
     <TD STYLE="text-align: left">&nbsp;</TD>
     <TD STYLE="text-align: left">&nbsp;</TD>
     <TD>&nbsp;</TD></TR>
</TABLE>

<DIV STYLE="text-align: center"><P STYLE="font: 12pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify"></P> </P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: 0pt">&nbsp;</FONT></P></DIV>
<P STYLE="margin: 0"></P>
<table cellpadding="8" cellspacing="0" width="100%" style="FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-SIZE: 10pt; FONT-FAMILY: times new roman">
<tr>
<td align="left" valign="top" width="30%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-TOP: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">CUSIP
No. 253798102</div>
</td>
<td valign="top" width="40%">
<div style="TEXT-ALIGN: center"><FONT STYLE="font: 10pt times new roman">&#160;<B>SCHEDULE 13G/A</B></FONT><B></B></div>
</td>
<td align="left" valign="top" width="30%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-TOP: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: right; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Page
5            of&#160;6 Pages</font></div>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"><B>Item
4.&#9;Ownership</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"></P></DIV>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt; text-indent: 0pt; text-align: justify"></P>

<P STYLE="color: rgb(0, 0, 0); font: 10pt Times New Roman, Times, Serif; letter-spacing: normal; word-spacing: 0px; text-align: justify; text-indent: 0pt; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt">Provide
the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in
Item 1.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; color: rgb(0, 0, 0); letter-spacing: normal; word-spacing: 0px; text-align: justify; text-indent: 0pt; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt"><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; color: rgb(0, 0, 0); letter-spacing: normal; word-spacing: 0px; text-align: justify; text-indent: 0pt; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt"><B>Mairs
and Power, Inc.</B></P>

<P STYLE="color: rgb(0, 0, 0); font: 10pt Times New Roman, Times, Serif; letter-spacing: normal; word-spacing: 0px; text-align: justify; text-indent: 0pt; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt">(a)
Amount beneficially owned: 1,324,118&nbsp;</P>

<P STYLE="color: rgb(0, 0, 0); font: 10pt Times New Roman, Times, Serif; letter-spacing: normal; word-spacing: 0px; text-align: justify; text-indent: 0pt; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt">(b)
Percent of class: 3.7%&nbsp;</P>

<P STYLE="color: rgb(0, 0, 0); font: 10pt Times New Roman, Times, Serif; letter-spacing: normal; word-spacing: 0px; text-align: justify; text-indent: 0pt; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt">(c)
Number of shares as to which the person has:</P>

<P STYLE="color: rgb(0, 0, 0); font: 10pt Times New Roman, Times, Serif; letter-spacing: normal; word-spacing: 0px; text-align: justify; text-indent: 20pt; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt">(i)
Sole power to vote or direct the vote: 1,319,576</P>

<P STYLE="color: rgb(0, 0, 0); font: 10pt Times New Roman, Times, Serif; letter-spacing: normal; word-spacing: 0px; text-align: justify; text-indent: 20pt; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt">(ii)
Shared power to vote or direct the vote: 0</P>

<P STYLE="color: rgb(0, 0, 0); font: 10pt Times New Roman, Times, Serif; letter-spacing: normal; word-spacing: 0px; text-align: justify; text-indent: 20pt; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt">(iii)
Sole power to dispose or to direct the disposition of: 1,324,118</P>

<P STYLE="color: rgb(0, 0, 0); font: 10pt Times New Roman, Times, Serif; letter-spacing: normal; word-spacing: 0px; text-align: justify; text-indent: 20pt; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt">(iv)
Shared power to dispose or to direct&nbsp;the disposition of: 0</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; color: rgb(0, 0, 0); letter-spacing: normal; word-spacing: 0px; text-align: justify; text-indent: 20pt; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt">&nbsp;</P>

<DIV STYLE="text-align: center"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify"></P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"><B>Item
5.&#9;Ownership of Five Percent or Less of a Class</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"><FONT STYLE="letter-spacing: -0.15pt"><B></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify">If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial
owner of more than five percent of the class of securities, check the following [X].</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"><B>Item
6.&#9;Ownership of More Than Five Percent on Behalf of Another Person</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify">Not Applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"><FONT STYLE="letter-spacing: -0.15pt"><B>Item
7. Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent
Holding Company or Control Person</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify">Not Applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"><FONT STYLE="letter-spacing: -0.15pt"><B>Item
8. Identification and Classification of Members of the Group</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify"><FONT STYLE="letter-spacing: -0.15pt">Not Applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"><FONT STYLE="letter-spacing: -0.15pt"><B>Item
9. Notice of Dissolution of Group</B></FONT><B>&nbsp;</B></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 22pt; text-indent: 22pt; text-align: justify">Not Applicable.</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"><FONT STYLE="letter-spacing: -0.15pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"><FONT STYLE="letter-spacing: -0.15pt"><B>Item
10. Certification</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"><FONT STYLE="letter-spacing: -0.15pt"><B></B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"></P></DIV>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt; text-indent: 0pt; text-align: justify"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0; margin-bottom: 6pt; margin-left: 44pt; text-indent: 0pt; text-align: justify">By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired
and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of
changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with
or as a participant in any transaction having that purpose or effect.</P>



<DIV STYLE="text-align: center"><P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in"></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0 0 0 1in; text-align: justify; text-indent: -1in">&nbsp;</P>

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</td>
<td valign="top" width="40%">
<div style="TEXT-ALIGN: center"><FONT STYLE="font: 10pt times new roman">&#160;<B>SCHEDULE 13G/A</B></FONT><B></B></div>
</td>
<td align="left" valign="top" width="30%" style="BORDER-BOTTOM: black 2px solid; BORDER-LEFT: black 2px solid; BORDER-TOP: black 2px solid; BORDER-RIGHT: black 2px solid">
<div style="TEXT-ALIGN: right; TEXT-INDENT: 0pt; DISPLAY: block; MARGIN-LEFT: 9pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-FAMILY: times new roman; FONT-SIZE: 10pt; FONT-WEIGHT: bold">Page
6          of&#160;6 Pages</font></div>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">&nbsp;</P>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: center"><B><U>SIGNATURE</U></B></P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify; text-indent: 0.5in">After reasonable inquiry
and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify">Dated: February 14, 2023</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0; text-align: justify"></P>

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

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<TR STYLE="vertical-align: top; text-align: left">
    <TD><FONT STYLE="font: 10pt Times New Roman, Times, Serif"><B>&nbsp;</B></FONT></TD>
    <TD COLSPAN="3"><P STYLE="margin-top: 0; margin-bottom: 0"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Mairs
                    and Power, Inc.</B></FONT></P></TD></TR>



<TR STYLE="vertical-align: top; text-align: left">
    <TD STYLE="width: 50%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 4%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 26%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD STYLE="width: 20%"><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD></TR>
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    <TD><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font: 10pt Times New Roman, Times, Serif">By:</FONT></TD>
    <TD COLSPAN="2" STYLE="border-bottom: Black 1pt solid"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;<I>/s/
    Robert W. Mairs</I></FONT></TD></TR>
<TR STYLE="vertical-align: top; text-align: left">
    <TD><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
    <TD><FONT STYLE="font: 10pt Times New Roman, Times, Serif">Robert W. Mairs, CCO</FONT></TD>
    </TR>

    <TR STYLE="vertical-align: top; text-align: left">
    <TD><FONT STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</FONT></TD>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
