<SEC-DOCUMENT>0001959173-24-007249.txt : 20241029
<SEC-HEADER>0001959173-24-007249.hdr.sgml : 20241029
<ACCEPTANCE-DATETIME>20241029154748
ACCESSION NUMBER:		0001959173-24-007249
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20241029
DATE AS OF CHANGE:		20241029

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:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	000-11740
		FILM NUMBER:		241405409

	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

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Owens Gary M
		CENTRAL INDEX KEY:			0001700671
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		12100 W. 6TH AVENUE
		CITY:			LAKEWOOD
		STATE:			CO
		ZIP:			80228
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001700671</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0000724004</issuerCik>
      <issuerName>MESA LABORATORIES INC /CO/</issuerName>
      <secFileNumber>000-11740</secFileNumber>
      <issuerAddress>
        <com:street1>12100 W 6TH AVE</com:street1>
        <com:city>LAKEWOOD</com:city>
        <com:stateOrCountry>CO</com:stateOrCountry>
        <com:zipCode>80228</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>3039878000</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Owens Gary M</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
        <relationshipToIssuer>Director</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>Fidelity Brokerage Services LLC</name>
        <address>
          <com:street1>900 Salem Street</com:street1>
          <com:city>Smithfield</com:city>
          <com:stateOrCountry>RI</com:stateOrCountry>
          <com:zipCode>02917</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>2551</noOfUnitsSold>
      <aggregateMarketValue>285651.54</aggregateMarketValue>
      <noOfUnitsOutstanding>5409163</noOfUnitsOutstanding>
      <approxSaleDate>10/29/2024</approxSaleDate>
      <securitiesExchangeName>NASDAQ</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>10/28/2024</acquiredDate>
      <natureOfAcquisitionTransaction>Restricted Stock Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>2551</amountOfSecuritiesAcquired>
      <paymentDate>10/28/2024</paymentDate>
      <natureOfPayment>Compensation</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Gary M. Owens</name>
        <address>
          <com:street1>12100 West Sixth Avenue</com:street1>
          <com:city>Lakewood</com:city>
          <com:stateOrCountry>CO</com:stateOrCountry>
          <com:zipCode>80228</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>10/28/2024</saleDate>
      <amountOfSecuritiesSold>2518</amountOfSecuritiesSold>
      <grossProceeds>286085.84</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>Sale includes an amount necessary to cover a tax obligation resulting from the settlement of a vested equity award distribution.</remarks>
    <noticeSignature>
      <noticeDate>10/29/2024</noticeDate>
      <signature>/s/ Joshua Schmitt, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Gary M. Owens.</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
