<SEC-DOCUMENT>0001085146-25-000128.txt : 20250110
<SEC-HEADER>0001085146-25-000128.hdr.sgml : 20250110
<ACCEPTANCE-DATETIME>20250110115536
ACCESSION NUMBER:		0001085146-25-000128
CONFORMED SUBMISSION TYPE:	SCHEDULE 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250110

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MESA LABORATORIES INC /CO/
		CENTRAL INDEX KEY:			0000724004
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				840872291
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-35904
		FILM NUMBER:		25521629

	BUSINESS ADDRESS:	
		STREET 1:		12100 W 6TH AVE
		CITY:			LAKEWOOD
		STATE:			CO
		ZIP:			80228
		BUSINESS PHONE:		3039878000

	MAIL ADDRESS:	
		STREET 1:		12100 W 6TH AVE
		CITY:			LAKEWOOD
		STATE:			CO
		ZIP:			80228

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MESA LABORATORIES INC /CO
		DATE OF NAME CHANGE:	19951117

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MESA MEDICAL INC
		DATE OF NAME CHANGE:	19921123

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Conestoga Capital Advisors, LLC
		CENTRAL INDEX KEY:			0001163744
		ORGANIZATION NAME:           	
		IRS NUMBER:				233072906
		STATE OF INCORPORATION:			DE

	FILING VALUES:
		FORM TYPE:		SCHEDULE 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		550 E. SWEDESFORD ROAD
		STREET 2:		SUITE 120
		CITY:			WAYNE
		STATE:			PA
		ZIP:			19087
		BUSINESS PHONE:		484-654-1380

	MAIL ADDRESS:	
		STREET 1:		550 E. SWEDESFORD ROAD
		STREET 2:		SUITE 120
		CITY:			WAYNE
		STATE:			PA
		ZIP:			19087

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CONESTOGA CAPITAL ADVISORS LLC
		DATE OF NAME CHANGE:	20011217
</SEC-HEADER>
<DOCUMENT>
<TYPE>SCHEDULE 13G/A
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/schedule13g" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>SCHEDULE 13G/A</submissionType>
    <previousAccessionNumber>0001085146-15-000104</previousAccessionNumber>
    <filerInfo>
      <filer>
        <filerCredentials>
          <!-- Field: Pseudo-Tag; ID: Name; Data: Conestoga Capital Advisors, LLC -->
          <cik>0001163744</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <coverPageHeader>
      <amendmentNo>11</amendmentNo>
      <securitiesClassTitle>Common Stock</securitiesClassTitle>
      <eventDateRequiresFilingThisStatement>12/31/2024</eventDateRequiresFilingThisStatement>
      <issuerInfo>
        <issuerCik>0000724004</issuerCik>
        <issuerName>MESA LABORATORIES INC /CO/</issuerName>
        <issuerCusip>59064R109</issuerCusip>
        <issuerPrincipalExecutiveOfficeAddress>
          <com:street1>12100 West Sixth Avenue</com:street1>
          <com:city>LAKEWOOD</com:city>
          <com:stateOrCountry>CO</com:stateOrCountry>
          <com:zipCode>80228</com:zipCode>
        </issuerPrincipalExecutiveOfficeAddress>
      </issuerInfo>
      <designateRulesPursuantThisScheduleFiled>
        <designateRulePursuantThisScheduleFiled>Rule 13d-1(b)</designateRulePursuantThisScheduleFiled>
      </designateRulesPursuantThisScheduleFiled>
    </coverPageHeader>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>Conestoga Capital Advisors</reportingPersonName>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>573037.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>618111.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>618111.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>11.38</classPercent>
      <typeOfReportingPerson>IA</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <coverPageHeaderReportingPersonDetails>


      <reportingPersonName>CONESTOGA FUNDS</reportingPersonName>
      <citizenshipOrOrganization>DE</citizenshipOrOrganization>
      <reportingPersonBeneficiallyOwnedNumberOfShares>
        <soleVotingPower>413985.00</soleVotingPower>
        <sharedVotingPower>0.00</sharedVotingPower>
        <soleDispositivePower>413985.00</soleDispositivePower>
        <sharedDispositivePower>0.00</sharedDispositivePower>
      </reportingPersonBeneficiallyOwnedNumberOfShares>
      <reportingPersonBeneficiallyOwnedAggregateNumberOfShares>413984.00</reportingPersonBeneficiallyOwnedAggregateNumberOfShares>
      <aggregateAmountExcludesCertainSharesFlag>N</aggregateAmountExcludesCertainSharesFlag>
      <classPercent>7.62</classPercent>
      <typeOfReportingPerson>IV</typeOfReportingPerson>
    </coverPageHeaderReportingPersonDetails>
    <items>
      <item1>
        <issuerName>MESA LABORATORIES INC /CO/</issuerName>
        <issuerPrincipalExecutiveOfficeAddress>12100 West Sixth Avenue LAKEWOOD, COLORADO 80228</issuerPrincipalExecutiveOfficeAddress>
      </item1>
      <item2>
        <filingPersonName>Conestoga Capital Advisors

CONESTOGA FUNDS</filingPersonName>
        <principalBusinessOfficeOrResidenceAddress>550 E. SWEDESFORD ROAD
SUITE 120
WAYNE, Pennsylvania
19087</principalBusinessOfficeOrResidenceAddress>
        <citizenship>Conestoga Capital Advisors - DELAWARE

CONESTOGA FUNDS - DELAWARE</citizenship>
      </item2>
      <item3>
        <notApplicableFlag>N</notApplicableFlag>
        <typeOfPersonFiling>IV</typeOfPersonFiling>
        <typeOfPersonFiling>IA</typeOfPersonFiling>
      </item3>
      <item4>
        <amountBeneficiallyOwned>Conestoga Capital Advisors 618,111
Conestoga Small Cap Fund 413,985</amountBeneficiallyOwned>
        <classPercent>11.38</classPercent>
        <numberOfSharesPersonHas>
          <solePowerOrDirectToVote>Conestoga Capital Advisors - 573037

CONESTOGA FUNDS - 413985</solePowerOrDirectToVote>
          <sharedPowerOrDirectToVote>Conestoga Capital Advisors - 0

CONESTOGA FUNDS - 0</sharedPowerOrDirectToVote>
          <solePowerOrDirectToDispose>Conestoga Capital Advisors - 618111

CONESTOGA FUNDS - 413985</solePowerOrDirectToDispose>
          <sharedPowerOrDirectToDispose>Conestoga Capital Advisors - 0

CONESTOGA FUNDS - 0</sharedPowerOrDirectToDispose>
        </numberOfSharesPersonHas>
      </item4>
      <item5>
        <notApplicableFlag>Y</notApplicableFlag>
      </item5>
      <item6>
        <notApplicableFlag>Y</notApplicableFlag>
      </item6>
      <item7>
        <notApplicableFlag>Y</notApplicableFlag>
      </item7>
      <item8>
        <notApplicableFlag>Y</notApplicableFlag>
      </item8>
      <item9>
        <notApplicableFlag>Y</notApplicableFlag>
      </item9>
      <item10>
        <notApplicableFlag>N</notApplicableFlag>
        <certifications>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, other than activities solely in connection with a nomination under ?? 240.14a-11.</certifications>
      </item10>
    </items>
    <signatureInformation>
      <reportingPersonName>Conestoga Capital Advisors</reportingPersonName>
      <signatureDetails>
        <signature>Duane R. D'Orazio</signature>
        <title>Managing Partner</title>
        <date>01/09/2025</date>
      </signatureDetails>
    </signatureInformation>
    <signatureInformation>
      <reportingPersonName>CONESTOGA FUNDS</reportingPersonName>
      <signatureDetails>
        <signature>Duane R. D'Orazio</signature>
        <title>Managing Partner</title>
        <date>01/09/2025</date>
      </signatureDetails>
    </signatureInformation>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
