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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">U.S. Securities and Exchange Commission</P>

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

<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Washington, D.C. 20549</P>

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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Form 8-K<BR>
Current Report</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Pursuant to Section 13 or 15(d) of the Securities
and Exchange Act of 1934</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U>MAY 23, 2012<BR>
</U></B>Date of Report (Date of earliest event Reported)</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U>MESA LABORATORIES, INC.<BR>
</U></B>(Exact Name of Small Business Issuer as Specified in its Charter)</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Commission File Number: 0-11740</P>

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

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    <TD STYLE="padding: 0.75pt; font-size: 10pt; text-align: center; width: 35%"><B><U>COLORADO <BR>
</U></B>(State or other Jurisdiction of <BR>
Incorporation or Organization) </TD>
    <TD STYLE="width: 35%; padding: 0.75pt; font-size: 10pt; text-align: center"><B><U>84-0872291 <BR>
</U></B>(I.R.S. Employer <BR>
Identification No.) </TD></TR>
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    <TD STYLE="padding: 0.75pt; text-align: center; width: 35%"><FONT STYLE="font-size: 10pt"><B><U>12100 WEST SIXTH AVENUE, LAKEWOOD,
    COLORADO <BR>
    </U></B>(Address of Principal Executive Offices)</FONT></TD>
    <TD STYLE="width: 35%; padding: 0.75pt; text-align: center"><FONT STYLE="font-size: 10pt">&nbsp;<B><U> 80228 <BR>
    </U></B>(Zip Code)</FONT></TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">Issuer&rsquo;s telephone number, including
area code: (303) 987-8000</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center"><B><U>Not Applicable.<BR>
</U></B>(Former name or former address, if changed since last report)</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction
A.2. below):</P>

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    <TD STYLE="width: 5%"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="width: 95%">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</TD></TR>
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    <TD STYLE="width: 5%"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="width: 95%">Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</TD></TR>
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<TR STYLE="vertical-align: top">
    <TD STYLE="width: 5%"><FONT STYLE="font-family: Wingdings">&#168;</FONT></TD>
    <TD>&nbsp;</TD>
    <TD STYLE="width: 95%">Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</TD></TR>
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    <TD>&nbsp;</TD>
    <TD STYLE="width: 95%">Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</TD></TR>
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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION.
</B></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to
the interim guidance provided in Release No. 33-8216, the disclosure being furnished in this Form 8-K is being furnished under
Item 12, &ldquo;Results of Operations and Financial Condition,&rdquo; of form 8-K.</P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On May 23, 2012,
Mesa Laboratories, Inc. issued a press release describing its results of operations for its fourth quarter and fiscal year ended
March 31, 2012. A copy of this press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein.</P>

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

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0"><B>ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS. </B></P>

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    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 5%">d)</TD>
    <TD>&nbsp;</TD>
    <TD STYLE="width: 90%">Exhibits:</TD></TR>
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    <TD STYLE="width: 5%">&nbsp;</TD>
    <TD STYLE="width: 95%">99.1 Press Release issued May 23, 2012</TD></TR>
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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">SIGNATURES</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">Pursuant to the requirements of the Securities Exchange Act
of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</P>

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

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

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    <TD STYLE="padding: 0; text-indent: 0">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 0; text-align: justify; text-indent: 0">MESA LABORATORIES, INC. <BR>
(Issuer)</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding: 0; text-indent: 0">&nbsp;</TD>
    <TD COLSPAN="2" STYLE="padding: 0; text-align: justify; text-indent: 0">&nbsp;</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding: 0; text-indent: 0; width: 50%">DATED: May 23, 2012</TD>
    <TD STYLE="padding: 0; text-align: justify; text-indent: 0; width: 5%">BY:</TD>
    <TD STYLE="padding: 0; text-indent: 0; width: 45%; border-bottom: Black 1pt solid">
        <P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt 0">/s/ Steven W. Peterson&nbsp;</P></TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding: 0; text-indent: 0">&nbsp;</TD>
    <TD STYLE="padding: 0; text-align: right; text-indent: 0">&nbsp;</TD>
    <TD STYLE="padding: 0; text-indent: 0">Steven W. Peterson <BR> Chief Financial Officer and Secretary</TD></TR>
</TABLE>


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<P STYLE="font: bold 10pt Times New Roman, Times, Serif; margin: 0pt 0; text-align: center">INDEX TO EXHIBITS</P>

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

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

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<TR STYLE="vertical-align: top">
    <TD STYLE="width: 30%; padding: 0.75pt; text-decoration: underline">Exhibit No.</TD>
    <TD STYLE="width: 5%; padding: 0.75pt">&nbsp;</TD>
    <TD STYLE="width: 30%; padding: 0.75pt; text-decoration: underline">Description</TD>
    <TD STYLE="width: 5%; padding: 0.75pt">&nbsp;</TD>
    <TD STYLE="width: 30%; padding: 0.75pt; text-decoration: underline">Method of Filing</TD></TR>
<TR STYLE="vertical-align: top">
    <TD STYLE="padding: 0.75pt">&nbsp;</TD>
    <TD STYLE="padding: 0.75pt">&nbsp;</TD>
    <TD STYLE="padding: 0.75pt">&nbsp;</TD>
    <TD STYLE="padding: 0.75pt">&nbsp;</TD>
    <TD STYLE="padding: 0.75pt">&nbsp;</TD></TR>
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    <TD STYLE="padding: 0.75pt">99.1</TD>
    <TD STYLE="padding: 0.75pt">&nbsp;</TD>
    <TD STYLE="padding: 0.75pt">Press release dated May 23, 2012</TD>
    <TD STYLE="padding: 0.75pt">&nbsp;</TD>
    <TD STYLE="padding: 0.75pt">Filed herewith</TD></TR>
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[{"type": "8-K", "sequence": "1", "filename": "v314282_8k.htm", "description": "FORM 8-K", "secsgml_size_bytes": 12347}]
{"company-data": {"conformed-name": "MESA LABORATORIES INC /CO", "cik": "0000724004", "assigned-sic": "3823", "irs-number": "840872291", "state-of-incorporation": "CO", "fiscal-year-end": "0331"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "000-11740", "film-number": "12863935"}, "business-address": {"street1": "12100 W 6TH AVE", "city": "LAKEWOOD", "state": "CO", "zip": "80228", "phone": "3039878000"}, "mail-address": {"street1": "12100 W 6TH AVE", "city": "LAKEWOOD", "state": "CO", "zip": "80228"}, "former-company": {"former-conformed-name": "MESA MEDICAL INC", "date-changed": "19921123"}}
U.S. Securities and Exchange Commission
Washington, D.C. 20549
Form 8-K
Current Report
Pursuant to Section 13 or 15(d) of the Securities
and Exchange Act of 1934
MAY 23, 2012
Date of Report (Date of earliest event Reported)
MESA LABORATORIES, INC.
(Exact Name of Small Business Issuer as Specified in its Charter)
Commission File Number: 0-11740
COLORADO
(State or other Jurisdiction of
Incorporation or Organization)
84-0872291
(I.R.S. Employer
Identification No.)
12100 WEST SIXTH AVENUE, LAKEWOOD,
    COLORADO
(Address of Principal Executive Offices)
80228
(Zip Code)
Issuer's telephone number, including
area code: (303) 987-8000
Not Applicable.
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended
to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction
A.2. below):
¨
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
¨
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
¨
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
¨
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
ITEM 2.02 RESULTS OF OPERATIONS AND FINANCIAL CONDITION.
Pursuant to
the interim guidance provided in Release No. 33-8216, the disclosure being furnished in this Form 8-K is being furnished under
Item 12, "Results of Operations and Financial Condition," of form 8-K.
On May 23, 2012,
Mesa Laboratories, Inc. issued a press release describing its results of operations for its fourth quarter and fiscal year ended
March 31, 2012. A copy of this press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein.
ITEM 9.01 FINANCIAL STATEMENTS AND EXHIBITS.
d)
Exhibits:
99.1 Press Release issued May 23, 2012
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act
of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
MESA LABORATORIES, INC.
(Issuer)
DATED: May 23, 2012
BY:
/s/ Steven W. Peterson
Steven W. Peterson
Chief Financial Officer and Secretary
INDEX TO EXHIBITS
Exhibit No.
Description
Method of Filing
99.1
Press release dated May 23, 2012
Filed herewith