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    <div style="text-align: right; font-family: &quot;Times New Roman&quot;,Times,serif; font-size: 10pt;">As filed with the Securities and Exchange Commission on August 2, 2019</div>
    <div style="text-align: right; margin-bottom: 3pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">Registration No. 333 &#8209;______</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">UNITED STATES SECURITIES AND EXCHANGE COMMISSION</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Washington, D.C. 20549</font></div>
            <div style="text-align: center;">_______________________________<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;"><br>
              </font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">FORM S&#8209;8</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">REGISTRATION STATEMENT</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;">Under</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold; font-style: italic;">The Securities Act of 1933</font></div>
            <div style="text-align: center;">_______________________________</div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">NATIONAL INSTRUMENTS CORPORATION</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">(Exact name of registrant as specified in its charter)</font></div>
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          <td style="width: 100%; vertical-align: top; text-align: center;" colspan="3">&#160;_______________________________</td>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Delaware</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">74-1871327</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">(State or other jurisdiction of</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">incorporation or organization)</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">(I.R.S. Employer</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Identification Number)</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">11500 North MoPac Expressway</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Austin, Texas 78759</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">(Address, including zip code, of registrant&#8217;s principal executive offices)</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">1994 Employee Stock Purchase Plan</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">(Full title of the Plan)</font></div>
            <div style="text-align: center;">_______________________________<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;"> </font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">R. Eddie Dixon, Jr.</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Vice President, General Counsel; Secretary</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">National Instruments Corporation</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">11500 North Mopac Expressway</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Austin, Texas 78759</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">(512) 683-0100</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">(Name, address, and telephone number, including area code, of agent for service)</font></div>
            <div style="text-align: center;">_______________________________<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;"> </font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-style: italic;">Copy to:</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">J. Robert Suffoletta, Jr.</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Wilson Sonsini Goodrich &amp; Rosati</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Professional Corporation</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">900 South Capital of Texas Highway</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Las Cimas IV, Fifth Floor</font></div>
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Austin, Texas 78746-5546</font></div>
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    <div style="text-align: justify; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer,
        a smaller reporting company, or an emerging growth company. See the definitions of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer,&#8221; &#8220;smaller reporting company,&#8221; and &#8220;emerging growth company&#8221; in Rule 12b-2 of the Exchange Act. (Check one):</font></div>
    <br>
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            <div style="text-align: left; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">Large accelerated filer&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#9745;</font></div>
          </td>
          <td style="width: 6.09%; vertical-align: top;">&#160;</td>
          <td style="width: 32.17%; vertical-align: top;">
            <div style="text-align: left;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Accelerated filer&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#9744;</font></font></div>
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          <td style="width: 3.24%; vertical-align: top;">&#160;</td>
          <td style="width: 58.5%; vertical-align: top;">
            <div style="text-align: left;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Non-accelerated filer&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#9744;</font>&#160; (Do not check if a
                smaller reporting company)</font></div>
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          <td style="width: 6.09%; vertical-align: top;">&#160;</td>
          <td style="width: 32.17%; vertical-align: top;">
            <div style="text-align: left;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Smaller reporting company&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#9744;</font></font></div>
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          <td style="width: 3.24%; vertical-align: top;">&#160;</td>
          <td style="width: 58.5%; vertical-align: top;">&#160;</td>
          <td style="width: 6.09%; vertical-align: top;">&#160;</td>
          <td style="width: 32.17%; vertical-align: top;">
            <div style="text-align: left;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Emerging growth company&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">&#9744;</font></font></div>
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    <div style="text-align: left; margin-top: 6pt; margin-bottom: 3pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended
        transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2(B) of the Securities Act</font></div>
    <div style="text-align: center; margin-top: 6pt; margin-bottom: 3pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">CALCULATION OF REGISTRATION FEE</font></div>
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            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Title of securities to<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>be registered</font></div>
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          <td style="border-bottom: 2px solid #000000; border-right: 2px solid; border-top: 4px double #000000; vertical-align: bottom; width: 15.71%;">
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Amount<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>to be<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>registered (1)</font></div>
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          <td style="border-bottom: 2px solid #000000; border-right: 2px solid; border-top: 4px double #000000; vertical-align: bottom; width: 14.05%;">
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Proposed<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>maximum<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>offering price<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>per share</font></div>
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          <td style="border-bottom: 2px solid #000000; border-right: 2px solid; border-top: 4px double #000000; vertical-align: bottom; width: 18.19%;">
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Proposed<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>maximum<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>aggregate<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>offering price</font></div>
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          <td style="border-bottom: 2px solid #000000; border-top: 4px double #000000; vertical-align: bottom; width: 12.4%;">
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Amount of<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>registration<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>fee</font></div>
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          <td style="border-bottom: 2px solid #000000; border-top: 4px double #000000; vertical-align: top; width: 0.79%;">&#160;</td>
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            <div style="text-align: left;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Common Stock, $0.01 par value per share</font></div>
          </td>
          <td style="width: 15.71%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">3,000,000 shares</font></div>
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          <td style="width: 14.05%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">$41.52 (2)</font></div>
          </td>
          <td style="width: 18.19%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">$124,560,000.00</font></div>
          </td>
          <td style="width: 12.4%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">$15,096.67 (3)</font></div>
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          <td style="width: 0.79%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0);">&#160;</td>
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          <td style="width: 0.79%; vertical-align: top;">&#160;</td>
          <td style="width: 99.21%; vertical-align: top;" colspan="6">
            <div style="text-align: justify; text-indent: -18pt; margin-left: 18pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">(1)</font>&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">This
                registration statement shall also cover any additional shares of common stock that become issuable by reason of any stock dividend, stock split, recapitalization or other similar transaction effected without the receipt of consideration
                that results in an increase in the number of the outstanding shares of common stock.&#160; In addition, pursuant to Rule 416(c) under the Securities Act, this registration statement covers an indeterminate amount of interests to be offered or
                sold pursuant to the registrant&#8217;s 1994 Employee Stock Purchase Plan.</font></div>
            <div style="text-align: justify; text-indent: -18pt; margin-left: 18pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">(2)</font>&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The
                proposed maximum offering price per share was determined pursuant to Rules&#160;457(c) and (h) under the Securities Act of 1933 to be equal to $41.52 per share, the average of the high and low price per share of the registrant&#8217;s common stock as
                reported on The Nasdaq Stock Market on July 31, 2019.</font></div>
            <div style="text-align: justify; text-indent: -18pt; margin-left: 18pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">(3)</font>&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The
                amount of the registration fee is calculated pursuant to Section 6(b) of the Securities Act, which currently provides that the filing fee rate shall be &#8220;$121.20 per $1 million&#8221; of the maximum aggregate price at which such securities are
                proposed to be offered. The registration fee is therefore calculated by multiplying the proposed maximum aggregate offering price by .0001212.</font></div>
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          <td style="width: 99.21%; vertical-align: top;" colspan="6">&#160;</td>
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    <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;"><a name="node3"></a>PART II</font></div>
    <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</font></div>
    <div style="text-align: left; margin-top: 12pt;"><a name="node4"></a><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Item 3.</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-size: 10pt; font-family: 'Times New Roman',
        Times, serif; font-weight: bold;">Incorporation of Documents by Reference.</font></div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The following documents and information have been filed by National Instruments Corporation (the
        &#8220;Registrant&#8221;) with the Securities and Exchange Commission (the &#8220;SEC&#8221;) and are incorporated herein by reference:</font></div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;">
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              <div style="text-align: justify; font-family: 'Times New Roman', Times, serif; font-size: 10pt;">a.&#160; <br>
              </div>
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            <td style="vertical-align: top; width: 94%; text-align: inherit; text-indent: 0px;">
              <div style="text-align: justify;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The Registrant&#8217;s Annual Report on Form 10-K for year ended December 31, 2018, filed with the SEC on February 21, 2019.</font></div>
              <div style="text-align: justify;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> <br>
                </font></div>
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              <div style="text-align: justify;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">b.</font></div>
            </td>
            <td style="vertical-align: top; width: 94%; text-align: inherit; text-indent: 0px;">
              <div style="text-align: justify;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The Registrant&#8217;s Quarterly Report on Form 10-Q for the quarter ended March 31, 2019, filed with the SEC on May 5, 2019.</font></div>
              <div style="text-align: justify;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> <br>
                </font></div>
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            <td style="vertical-align: top; width: 5%; text-align: inherit; text-indent: 0px;">&#160;</td>
            <td style="vertical-align: top; width: 1%; text-align: inherit; text-indent: 0px;">
              <div style="text-align: justify;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">c.</font></div>
            </td>
            <td style="vertical-align: top; width: 94%; text-align: inherit; text-indent: 0px;">
              <div style="text-align: justify;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The Registrant&#8217;s Quarterly Report on Form 10-Q for the quarter ended June 30, 2019, filed with the SEC on August 2, 2019.</font></div>
              <div style="text-align: justify;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> <br>
                </font></div>
            </td>
          </tr>
          <tr>
            <td style="vertical-align: top; width: 5%; text-align: inherit; text-indent: 0px;">&#160;</td>
            <td style="vertical-align: top; width: 1%; text-align: inherit; text-indent: 0px;">
              <div style="text-align: justify;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">d.</font></div>
            </td>
            <td style="vertical-align: top; width: 94%; text-align: inherit; text-indent: 0px;">
              <div style="text-align: left; background-color: rgb(255, 255, 255); font-weight: normal; color: rgb(0, 0, 0); font-family: &quot;Times New Roman&quot;,Times,serif; font-size: 10pt; font-style: normal; font-variant: normal; text-transform:
                none;">The Registrant&#8217;s Current Reports on Form 8-K filed with the SEC on January 28, 2019, January 29, 2019, February 1, 2019, May 14, 2019, and June 28, 2019.</div>
              <div style="text-align: justify; background-color: rgb(255, 255, 255); font-weight: normal; color: rgb(0, 0, 0); font-family: &quot;Times New Roman&quot;,Times,serif; font-size: 10pt; font-style: normal; font-variant: normal; text-transform:
                none;"> <br>
              </div>
            </td>
          </tr>
          <tr>
            <td style="vertical-align: top; width: 5%; text-align: inherit; text-indent: 0px;">&#160;</td>
            <td style="vertical-align: top; width: 1%; text-align: inherit; text-indent: 0px;">
              <div style="text-align: justify;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">e.</font></div>
            </td>
            <td style="vertical-align: top; width: 94%; text-align: inherit; text-indent: 0px;">
              <div style="text-align: left; background-color: rgb(255, 255, 255); font-weight: normal; color: rgb(0, 0, 0); font-family: &quot;Times New Roman&quot;,Times,serif; font-size: 10pt; font-style: normal; font-variant: normal; text-transform:
                none;">The Registrant&#8217;s description of authorized capital stock contained in its registration statement filed under Section 12 of the Exchange Act, including any amendment or report filed for the purpose of updating the description.</div>
            </td>
          </tr>

      </table>
      <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </font></div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </font></div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">All documents subsequently filed by the Registrant pursuant to Sections&#160;13(a), 13(c), 14 and 15(d) of
        the Exchange Act prior to the filing of a post-effective amendment that indicates that all securities offered have been sold or that deregisters all securities then remaining unsold, shall be deemed to be incorporated by reference in this
        registration statement and to be part hereof from the date of filing of such documents.</font></div>
    <div style="text-align: left; margin-top: 12pt;"><a name="node5"></a><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Item 4.</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-size: 10pt; font-family: 'Times New Roman',
        Times, serif; font-weight: bold;">Description of Securities.</font></div>
    <div style="text-align: left; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Not applicable.</font></div>
    <div style="text-align: left; margin-top: 12pt;"><a name="node6"></a><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Item 5.</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-size: 10pt; font-family: 'Times New Roman',
        Times, serif; font-weight: bold;">Interests of Named Experts and Counsel.</font></div>
    <div style="text-align: left; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Not applicable.</font></div>
    <div style="text-align: left; margin-top: 12pt;"><a name="node7"></a><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Item 6.</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-size: 10pt; font-family: 'Times New Roman',
        Times, serif; font-weight: bold;">Indemnification of Directors and Officers.</font></div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Section 145(a) of the Delaware General Corporation Law provides, in general, that a corporation shall
        have the power to indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by
        or in the right of the corporation), because the person is or was a director or officer of the corporation. Such indemnity may be against expenses (including attorneys&#8217; fees), judgments, fines and amounts paid in settlement actually and reasonably
        incurred by the person in connection with such action, suit or proceeding, if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation and if, with respect to any
        criminal action or proceeding, the person did not have reasonable cause to believe the person&#8217;s conduct was unlawful.</font></div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Section 145(b) of the Delaware General Corporation Law provides, in general, that a corporation shall
        have the power to indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor because the person is
        or was a director or officer of the corporation, against any expenses (including attorneys&#8217; fees) actually and reasonably incurred by the person in connection with the defense or settlement of such action or suit if the person acted in good faith
        and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation.</font></div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-family: 'Times New Roman', Times, serif; font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">II - 1</font></div>
      <div style="page-break-after: always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
    </div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Section 145(g) of the Delaware General Corporation Law provides, in general, that a corporation shall
        have the power to purchase and maintain insurance on behalf of any person who is or was a director or officer of the corporation against any liability asserted against the person in any such capacity, or arising out of the person&#8217;s status as such,
        whether or not the corporation would have the power to indemnify the person against such liability under the provisions of the law.</font></div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The Registrant&#8217;s certificate of incorporation, as amended, provides that, subject to certain limited
        exceptions, the Registrant may indemnify its directors and officers to the extent authorized or permitted by the Delaware General Corporation Law. The Registrant&#8217;s directors and officers are insured under policies of insurance maintained by the
        Registrant, subject to the limits of the policies, against certain losses arising from any claims made against them by reason of being or having been such directors or officers. In addition, the Registrant has entered into contracts with certain of
        its directors and officers providing for indemnification of such persons by the Registrant to the full extent authorized or permitted by law, subject to certain limited exceptions.</font></div>
    <div style="text-align: left; margin-top: 12pt;"><a name="node8"></a><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Item 7.</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-size: 10pt; font-family: 'Times New Roman',
        Times, serif; font-weight: bold;">Exemption From Registration Claimed.</font></div>
    <div style="text-align: left; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Not applicable.</font></div>
    <div style="text-align: left; margin-top: 12pt;"><a name="node9"></a><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Item 8.</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-size: 10pt; font-family: 'Times New Roman',
        Times, serif; font-weight: bold;">Exhibits.</font></div>
    <table cellspacing="0" cellpadding="0" border="0" id="zb3fb39e9e02c43688a9ebd5aefe5da1a" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%;">

        <tr>
          <td style="border-bottom: 1px solid rgb(0, 0, 0); vertical-align: bottom; text-align: center;" rowspan="1" colspan="2">
            <div>
              <div>&#160;</div>
              <div style="padding: 0px 0px 2px;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif; font-weight: bold;">Exhibit<font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;"><br>
                  </font>Number</font> <br>
              </div>
            </div>
          </td>
          <td style="width: 1%; vertical-align: middle; text-align: center; padding-bottom: 2px;" rowspan="1" colspan="1">&#160;</td>
          <td style="border-bottom: 1px solid rgb(0, 0, 0); vertical-align: middle; width: 89%; text-align: left;">
            <div>
              <div>&#160;</div>
              <div> <br>
              </div>
              <div style="padding: 0px 0px 2px;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif; font-weight: bold;">Document</font></div>
            </div>
          </td>
        </tr>
        <tr>
          <td style="width: 6%; vertical-align: middle; text-align: right;">
            <div><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">4.1</font></div>
          </td>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 1%; vertical-align: top;" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top;">
            <div style="text-align: left; margin-left: 0.9pt;"><a href="http://www.sec.gov/Archives/edgar/data/935494/000093549414000006/nati-20131231ex31d299188.htm"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Certificate
                  of Incorporation, as amended, of the Registrant, incorporated by reference to Exhibit 3.1 of the Registrant&#8217;s Annual Report on Form 10-K for the fiscal year ended December 31, 2013.</font></a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 6%; vertical-align: middle; text-align: right;">
            <div><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">4.2</font></div>
          </td>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 1%; vertical-align: top;" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top;">
            <div style="text-align: left;"><a href="http://www.sec.gov/Archives/edgar/data/935494/000093549419000002/ex3-1.htm"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Amended and Restated Bylaws of the Registrant,
                  incorporated by reference to Exhibit 3.1 of the Registrant&#8217;s Current Report on Form 8-K filed on January 28, 2019 (File No. 000-25426).</font></a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 6%; vertical-align: middle; text-align: right;">
            <div><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">4.3</font></div>
          </td>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 1%; vertical-align: top;" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top;">
            <div style="text-align: left;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Specimen of Common Stock certificate of the Company, incorporated by reference to the Registrant&#8217;s Registration Statement on Form S-1
                (Reg. No. 33-88386) declared effective March 13, 1995.</font></div>
          </td>
        </tr>
        <tr>
          <td style="width: 6%; vertical-align: middle; text-align: right;">
            <div><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">4.4</font></div>
          </td>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 1%; vertical-align: top;" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top;">
            <div style="text-align: left;"><a href="http://www.sec.gov/Archives/edgar/data/935494/000119312519093489/d626623ddef14a.htm#toc626623_54"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">1994 Employee Stock Purchase
                  Plan, incorporated by reference to Exhibit A of the Registrant&#8217;s Proxy Statement dated and filed April 1, 2019.</font></a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 6%; vertical-align: middle; text-align: right;">
            <div><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">5.1</font></div>
          </td>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 1%; vertical-align: top;" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top;">
            <div style="text-align: left;"><a href="exhibit5-1wsgr_opinion.htm"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Opinion


                  of Wilson Sonsini Goodrich&#160;&amp; Rosati, Professional Corporation.</font></a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 6%; vertical-align: middle; text-align: right;">
            <div><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">23.1</font></div>
          </td>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 1%; vertical-align: top;" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top;">
            <div style="text-align: left;"><a href="ey_consent.htm"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Consent of
                  Ernst &amp; Young LLP, independent registered public accounting firm.</font></a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 6%; vertical-align: middle; text-align: right;">
            <div><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">23.2</font></div>
          </td>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 1%; vertical-align: top;" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top;">
            <div style="text-align: left;"><a href="exhibit5-1wsgr_opinion.htm"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Consent


                  of Wilson Sonsini Goodrich&#160;&amp; Rosati, Professional Corporation (included in Exhibit&#160;5.1).</font></a></div>
          </td>
        </tr>
        <tr>
          <td style="width: 6%; vertical-align: middle; text-align: right;">
            <div><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">24.1</font></div>
          </td>
          <td style="width: 4%; vertical-align: top;">&#160;</td>
          <td style="width: 1%; vertical-align: top;" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top;">
            <div style="text-align: left;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Power of Attorney (see page II-4 of this Form S-8).</font></div>
          </td>
        </tr>

    </table>
    <div style="margin-bottom: 2pt;"><br>
    </div>
    <div style="text-align: left; margin-top: 12pt;"><a name="node11"></a><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">Item 9.</font>&#160;&#160;&#160;&#160;&#160;&#160;&#160; <font style="font-size: 10pt; font-family: 'Times New Roman',
        Times, serif; font-weight: bold;">Undertakings.</font></div>
    <div style="text-align: left; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">(a)</font>&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">The undersigned
        registrant hereby undertakes:</font></div>
    <div style="text-align: justify; text-indent: 72pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">(1)</font>&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">To file,
        during any period in which offers or sales are being made, a post-effective amendment to this registration statement to include any material information with respect to the plan of distribution not previously disclosed in the registration statement
        or any material change to such information in the registration statement.</font></div>
    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
      <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-family: 'Times New Roman', Times, serif; font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">II - 2</font></div>
      <div style="page-break-after: always;" id="DSPFPageBreak">
        <hr noshade="noshade" style="border-width: 0px; clear: both; margin: 4px 0px; width: 100%; height: 2px; color: #000000; background-color: #000000;"></div>
    </div>
    <div style="text-align: justify; text-indent: 72pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">(2)</font>&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">That, for the
        purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that
        time shall be deemed to be the initial bona fide offering thereof.</font></div>
    <div style="text-align: justify; text-indent: 72pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">(3)</font>&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">To remove from
        registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.</font></div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">(b)</font>&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">That, for
        purposes of determining any liability under the Securities Act of 1933, each filing of the registrant&#8217;s annual report pursuant to Section&#160;13(a) or Section&#160;15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an
        employee benefit plan&#8217;s annual report pursuant to Section&#160;15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities
        offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.</font></div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">(c)</font>&#160; <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Insofar as
        indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to Item&#160;6 of Part&#160;II of this registration statement, or otherwise, the registrant
        has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable.&#160; In the event that a claim for indemnification
        against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such
        director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate
        jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.</font></div>
    <div id="DSPFPageBreakArea" style="clear: both; margin-top: 10pt; margin-bottom: 10pt;">
      <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-family: 'Times New Roman', Times, serif; font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">II - 3</font></div>
      <div id="DSPFPageBreak" style="page-break-after:always;">
        <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
    </div>
    <div style="text-align: center;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">SIGNATURES</font></div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has
        reasonable grounds to believe that it meets all of the requirements for filing on Form&#160;S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Austin, State of
        Texas, on August 2, 2019.</font></div>
    <div style="margin: 12pt 0px 0px; text-align: justify;">
      <div>
        <table cellspacing="0" cellpadding="0" id="z325fcef47fcd4c1e846bd28f6255b01e" style="font-family: 'Times New Roman', Times, serif; font-size: 10pt; width: 100%;">

            <tr>
              <td style="width: 48.35%; vertical-align: top;">&#160;</td>
              <td style="width: 51.65%; vertical-align: top; font-weight: normal;" colspan="3">
                <div style="text-align: left; font-family: &quot;Times New Roman&quot;,Times,serif; font-size: 10pt;">NATIONAL INSTRUMENTS CORPORATION</div>
              </td>
            </tr>
            <tr>
              <td style="width: 48.35%; vertical-align: top;">&#160;</td>
              <td style="vertical-align: top; width: 2%;">&#160;</td>
              <td style="width: 48.12%; vertical-align: top;" colspan="2">&#160;</td>
            </tr>
            <tr>
              <td style="width: 48.35%; vertical-align: top;">&#160;</td>
              <td style="vertical-align: top; width: 2%;">
                <div style="text-align: left;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">By:</font></div>
              </td>
              <td style="border-bottom: 1px solid #000000; vertical-align: top; width: 36.36%;">
                <div style="text-align: left;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">/s/ Alex M. Davern</font></div>
              </td>
              <td style="width: 11.76%; vertical-align: top;">&#160;</td>
            </tr>
            <tr>
              <td style="width: 48.35%; vertical-align: top;">&#160;</td>
              <td style="vertical-align: top; width: 2%;">&#160;</td>
              <td style="width: 48.12%; vertical-align: top;" colspan="2">
                <div style="text-align: left;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Alex M. Davern</font></div>
                <div style="text-align: left;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Chief Executive Officer</font></div>
              </td>
            </tr>

        </table>
      </div>
      <font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> </font></div>
    <br>
    <div style="text-align: center; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif; font-weight: bold;">POWER OF ATTORNEY</font></div>
    <div style="text-align: justify; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and
        appoints Alexander M. Davern and Karen Rapp, and each of them individually, as his or her true and lawful attorneys-in-fact and agents with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in
        any and all capacities to sign the registration statement filed herewith and any or all amendments to said registration statement with exhibits thereto and other documents in connection therewith, with the SEC, hereby ratifying and confirming all
        that each of said attorneys-in-fact, or his or her substitute or substitutes, may do or cause to be done by virtue hereof.</font></div>
    <div style="text-align: left; text-indent: 36pt; margin-top: 12pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by
        the following persons in the capacities and on the dates indicated.</font></div>
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          <td style="width: 2%; vertical-align: bottom; padding-bottom: 2px;" colspan="1">&#160;</td>
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              <div>&#160;</div>
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              <div>&#160;</div>
            </div>
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        </tr>
        <tr>
          <td style="width: 30%; vertical-align: bottom;">
            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> <br>
              </font></div>
            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">/s/ Alex M. Davern<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>Alex M. Davern</font></div>
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            <div style="text-indent: 0.45pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">Director, Chief Executive Officer (Principal Executive Officer)</font></div>
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            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">August 2, 2019</font></div>
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            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> <br>
              </font></div>
            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">/s/ Karen Rapp<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
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          <td style="width: 2%; vertical-align: bottom;" colspan="1">&#160;</td>
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            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">Chairman of the Board</font></div>
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          <td style="width: 2%; vertical-align: bottom; text-align: left;" colspan="1">&#160;</td>
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            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">August 2, 2019</font></div>
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            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">/s/ Jeffrey L. Kodosky<font style="font-size: 10pt; font-family: 'Times New Roman', Times,
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          <td style="width: 2%; vertical-align: bottom;" colspan="1">&#160;</td>
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          <td style="width: 2%; vertical-align: bottom; text-align: left;" colspan="1">&#160;</td>
          <td style="width: 30%; vertical-align: bottom; text-align: center;">
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            <div style="text-align: left; margin-left: 13.5pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> <br>
              </font></div>
            <div style="text-align: left; margin-left: 13.5pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">/s/ Charles J. Roesslein<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>Charles J. Roesslein</font></div>
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            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">Director</font></div>
          </td>
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            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">August 2, 2019</font></div>
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          <td style="width: 30%; vertical-align: bottom;">
            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> <br>
              </font></div>
            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">/s/ Duy-Loan T. Le<font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"><br>
                </font>Duy-Loan T. Le</font></div>
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          <td style="width: 2%; vertical-align: bottom;" colspan="1">&#160;</td>
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            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">Director</font></div>
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          <td style="width: 2%; vertical-align: bottom; text-align: left;" colspan="1">&#160;</td>
          <td style="width: 30%; vertical-align: bottom; text-align: center;">
            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">August 2, 2019</font></div>
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            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> <br>
              </font></div>
            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">/s/ Gerhard P. Fettweis<font style="font-size: 10pt; font-family: 'Times New Roman', Times,
                  serif;"><br>
                </font>Gerhard P. Fettweis</font></div>
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            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">Director</font></div>
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          <td style="width: 2%; vertical-align: bottom; text-align: left;" colspan="1">&#160;</td>
          <td style="width: 30%; vertical-align: bottom; text-align: center;">
            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">August 2, 2019</font></div>
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            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">/s/ James E. Cashman, III<font style="font-size: 10pt; font-family: 'Times New Roman', Times,
                  serif;"><br>
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          <td style="width: 2%; vertical-align: bottom;" colspan="1">&#160;</td>
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            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">Director</font></div>
          </td>
          <td style="width: 2%; vertical-align: bottom; text-align: left;" colspan="1">&#160;</td>
          <td style="width: 30%; vertical-align: bottom; text-align: center;">
            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">August 2, 2019</font></div>
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        <tr>
          <td style="width: 30%; vertical-align: bottom;">
            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;"> <br>
              </font></div>
            <div style="text-align: left; text-indent: -0.9pt; margin-left: 14.4pt;"><font style="font-size: 10pt; font-family: 'Times New Roman', Times, serif;">/s/ Liam K. Griffin<font style="font-size: 10pt; font-family: 'Times New Roman', Times,
                  serif;"><br>
                </font>Liam K. Griffin</font></div>
          </td>
          <td style="width: 2%; vertical-align: bottom;" colspan="1">&#160;</td>
          <td style="width: 36%; vertical-align: bottom; text-align: left;">
            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">Director</font></div>
          </td>
          <td style="width: 2%; vertical-align: bottom; text-align: left;" colspan="1">&#160;</td>
          <td style="width: 30%; vertical-align: bottom; text-align: center;">
            <div style="text-indent: -10.8pt; margin-left: 10.8pt;"><font style="font-size: 10pt; font-family: &quot;Times New Roman&quot;,Times,serif;">August 2, 2019</font></div>
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        </tr>

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    <br>
  </div>
  <div style="text-align: center;" id="DSPFPageNumberArea"><font style="font-family: 'Times New Roman', Times, serif; font-size: 8pt; color: #000000; font-weight: normal; font-style: normal;" id="DSPFPageNumber">II - 4</font></div>
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[{"type": "S-8", "sequence": "1", "filename": "form_s8-espp2019.htm", "description": "FORM S-8 2019", "secsgml_size_bytes": 68753}]
{"company-data": {"conformed-name": "NATIONAL INSTRUMENTS CORP", "cik": "0000935494", "assigned-sic": "7372", "irs-number": "741871327", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-232972", "film-number": "19995152"}, "business-address": {"street1": "11500 NORTH MOPAC EXPRESSWAY", "city": "AUSTIN", "state": "TX", "zip": "78759", "phone": "5123389119"}, "mail-address": {"street1": "11500 NORTH MOPAC EXPRESSWAY", "city": "AUSTIN", "state": "TX", "zip": "78759"}, "former-company": {"former-conformed-name": "NATIONAL INSTRUMENTS CORP /DE/", "date-changed": "19950113"}}
As filed with the Securities and Exchange Commission on August 2, 2019
Registration No. 333 ‑______
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
_______________________________
FORM S‑8
REGISTRATION STATEMENT
Under
The Securities Act of 1933
_______________________________
NATIONAL INSTRUMENTS CORPORATION
(Exact name of registrant as specified in its charter)
_______________________________
Delaware
74-1871327
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer
Identification Number)
11500 North MoPac Expressway
Austin, Texas 78759
(Address, including zip code, of registrant's principal executive offices)
1994 Employee Stock Purchase Plan
(Full title of the Plan)
_______________________________
R. Eddie Dixon, Jr.
Vice President, General Counsel; Secretary
National Instruments Corporation
11500 North Mopac Expressway
Austin, Texas 78759
(512) 683-0100
(Name, address, and telephone number, including area code, of agent for service)
_______________________________
Copy to:
J. Robert Suffoletta, Jr.
Wilson Sonsini Goodrich & Rosati
Professional Corporation
900 South Capital of Texas Highway
Las Cimas IV, Fifth Floor
Austin, Texas 78746-5546
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer,
        a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act. (Check one):
Large accelerated filer
☑
Accelerated filer
☐
Non-accelerated filer
☐
(Do not check if a
                smaller reporting company)
Smaller reporting company
☐
Emerging growth company
☐
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended
        transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2(B) of the Securities Act
CALCULATION OF REGISTRATION FEE
Title of securities to
be registered
Amount
to be
registered (1)
Proposed
maximum
offering price
per share
Proposed
maximum
aggregate
offering price
Amount of
registration
fee
Common Stock, $0.01 par value per share
3,000,000 shares
$41.52 (2)
$124,560,000.00
$15,096.67 (3)
(1)
This
                registration statement shall also cover any additional shares of common stock that become issuable by reason of any stock dividend, stock split, recapitalization or other similar transaction effected without the receipt of consideration
                that results in an increase in the number of the outstanding shares of common stock.  In addition, pursuant to Rule 416(c) under the Securities Act, this registration statement covers an indeterminate amount of interests to be offered or
                sold pursuant to the registrant's 1994 Employee Stock Purchase Plan.
(2)
The
                proposed maximum offering price per share was determined pursuant to Rules 457(c) and (h) under the Securities Act of 1933 to be equal to $41.52 per share, the average of the high and low price per share of the registrant's common stock as
                reported on The Nasdaq Stock Market on July 31, 2019.
(3)
The
                amount of the registration fee is calculated pursuant to Section 6(b) of the Securities Act, which currently provides that the filing fee rate shall be "$121.20 per $1 million" of the maximum aggregate price at which such securities are
                proposed to be offered. The registration fee is therefore calculated by multiplying the proposed maximum aggregate offering price by .0001212.
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3.
Incorporation of Documents by Reference.
The following documents and information have been filed by National Instruments Corporation (the
        "Registrant") with the Securities and Exchange Commission (the "SEC") and are incorporated herein by reference:
a.
The Registrant's Annual Report on Form 10-K for year ended December 31, 2018, filed with the SEC on February 21, 2019.
b.
The Registrant's Quarterly Report on Form 10-Q for the quarter ended March 31, 2019, filed with the SEC on May 5, 2019.
c.
The Registrant's Quarterly Report on Form 10-Q for the quarter ended June 30, 2019, filed with the SEC on August 2, 2019.
d.
The Registrant's Current Reports on Form 8-K filed with the SEC on January 28, 2019, January 29, 2019, February 1, 2019, May 14, 2019, and June 28, 2019.
e.
The Registrant's description of authorized capital stock contained in its registration statement filed under Section 12 of the Exchange Act, including any amendment or report filed for the purpose of updating the description.
All documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14 and 15(d) of
        the Exchange Act prior to the filing of a post-effective amendment that indicates that all securities offered have been sold or that deregisters all securities then remaining unsold, shall be deemed to be incorporated by reference in this
        registration statement and to be part hereof from the date of filing of such documents.
Item 4.
Description of Securities.
Not applicable.
Item 5.
Interests of Named Experts and Counsel.
Not applicable.
Item 6.
Indemnification of Directors and Officers.
Section 145(a) of the Delaware General Corporation Law provides, in general, that a corporation shall
        have the power to indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (other than an action by
        or in the right of the corporation), because the person is or was a director or officer of the corporation. Such indemnity may be against expenses (including attorneys' fees), judgments, fines and amounts paid in settlement actually and reasonably
        incurred by the person in connection with such action, suit or proceeding, if the person acted in good faith and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation and if, with respect to any
        criminal action or proceeding, the person did not have reasonable cause to believe the person's conduct was unlawful.
Section 145(b) of the Delaware General Corporation Law provides, in general, that a corporation shall
        have the power to indemnify any person who was or is a party or is threatened to be made a party to any threatened, pending or completed action or suit by or in the right of the corporation to procure a judgment in its favor because the person is
        or was a director or officer of the corporation, against any expenses (including attorneys' fees) actually and reasonably incurred by the person in connection with the defense or settlement of such action or suit if the person acted in good faith
        and in a manner the person reasonably believed to be in or not opposed to the best interests of the corporation.
II - 1
Section 145(g) of the Delaware General Corporation Law provides, in general, that a corporation shall
        have the power to purchase and maintain insurance on behalf of any person who is or was a director or officer of the corporation against any liability asserted against the person in any such capacity, or arising out of the person's status as such,
        whether or not the corporation would have the power to indemnify the person against such liability under the provisions of the law.
The Registrant's certificate of incorporation, as amended, provides that, subject to certain limited
        exceptions, the Registrant may indemnify its directors and officers to the extent authorized or permitted by the Delaware General Corporation Law. The Registrant's directors and officers are insured under policies of insurance maintained by the
        Registrant, subject to the limits of the policies, against certain losses arising from any claims made against them by reason of being or having been such directors or officers. In addition, the Registrant has entered into contracts with certain of
        its directors and officers providing for indemnification of such persons by the Registrant to the full extent authorized or permitted by law, subject to certain limited exceptions.
Item 7.
Exemption From Registration Claimed.
Not applicable.
Item 8.
Exhibits.
Exhibit
Number
Document
4.1
Certificate
                  of Incorporation, as amended, of the Registrant, incorporated by reference to Exhibit 3.1 of the Registrant's Annual Report on Form 10-K for the fiscal year ended December 31, 2013.
4.2
Amended and Restated Bylaws of the Registrant,
                  incorporated by reference to Exhibit 3.1 of the Registrant's Current Report on Form 8-K filed on January 28, 2019 (File No. 000-25426).
4.3
Specimen of Common Stock certificate of the Company, incorporated by reference to the Registrant's Registration Statement on Form S-1
                (Reg. No. 33-88386) declared effective March 13, 1995.
4.4
1994 Employee Stock Purchase
                  Plan, incorporated by reference to Exhibit A of the Registrant's Proxy Statement dated and filed April 1, 2019.
5.1
Opinion

                  of Wilson Sonsini Goodrich & Rosati, Professional Corporation.
23.1
Consent of
                  Ernst & Young LLP, independent registered public accounting firm.
23.2
Consent

                  of Wilson Sonsini Goodrich & Rosati, Professional Corporation (included in Exhibit 5.1).
24.1
Power of Attorney (see page II-4 of this Form S-8).
Item 9.
Undertakings.
(a)
The undersigned
        registrant hereby undertakes:
(1)
To file,
        during any period in which offers or sales are being made, a post-effective amendment to this registration statement to include any material information with respect to the plan of distribution not previously disclosed in the registration statement
        or any material change to such information in the registration statement.
II - 2
(2)
That, for the
        purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that
        time shall be deemed to be the initial bona fide offering thereof.
(3)
To remove from
        registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.
(b)
That, for
        purposes of determining any liability under the Securities Act of 1933, each filing of the registrant's annual report pursuant to Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an
        employee benefit plan's annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities
        offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.
(c)
Insofar as
        indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to Item 6 of Part II of this registration statement, or otherwise, the registrant
        has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable.  In the event that a claim for indemnification
        against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such
        director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate
        jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue.
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SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the registrant certifies that it has
        reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Austin, State of
        Texas, on August 2, 2019.
NATIONAL INSTRUMENTS CORPORATION
By:
/s/ Alex M. Davern
Alex M. Davern
Chief Executive Officer
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and
        appoints Alexander M. Davern and Karen Rapp, and each of them individually, as his or her true and lawful attorneys-in-fact and agents with full power of substitution and resubstitution, for him or her and in his or her name, place and stead, in
        any and all capacities to sign the registration statement filed herewith and any or all amendments to said registration statement with exhibits thereto and other documents in connection therewith, with the SEC, hereby ratifying and confirming all
        that each of said attorneys-in-fact, or his or her substitute or substitutes, may do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by
        the following persons in the capacities and on the dates indicated.
Signature
Title
Date
/s/ Alex M. Davern
Alex M. Davern
Director, Chief Executive Officer (Principal Executive Officer)
August 2, 2019
/s/ Karen Rapp
Karen Rapp
Chief Financial Officer (Principal Financial and Accounting Officer)
August 2, 2019
/s/ Michael E. McGrath
Michael E. McGrath
Chairman of the Board
August 2, 2019
/s/ Jeffrey L. Kodosky
Jeffrey L. Kodosky
Director
August 2, 2019
/s/ Charles J. Roesslein
Charles J. Roesslein
Director
August 2, 2019
/s/ Duy-Loan T. Le
Duy-Loan T. Le
Director
August 2, 2019
/s/ Gerhard P. Fettweis
Gerhard P. Fettweis
Director
August 2, 2019
/s/ James E. Cashman, III
James E. Cashman, III
Director
August 2, 2019
/s/ Liam K. Griffin
Liam K. Griffin
Director
August 2, 2019
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