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  <div style="text-align: center; font-weight: bold;">As filed with the Securities and Exchange Commission on September 27, 2019</div>
  <div><br>
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  <div style="text-align: right; margin-left: 333pt; font-weight: bold;">Registration No. 333-</div>
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  <div style="text-align: center; font-size: 14pt; font-weight: bold;">UNITED STATES</div>
  <font style="font-size: 14pt;"> </font>
  <div style="text-align: center; font-weight: bold; font-size: 14pt;">SECURITIES AND EXCHANGE COMMISSION</div>
  <div style="text-align: center; font-size: 12pt; font-weight: bold;">Washington, D.C. 20549</div>
  <div style="text-align: center;"> <br>
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  <div style="text-align: center; font-size: 18pt; font-weight: bold;">FORM S-8</div>
  <div style="text-align: center; font-weight: bold;">REGISTRATION STATEMENT</div>
  <div style="text-align: center; font-style: italic; font-weight: bold;">UNDER</div>
  <div style="text-align: center; font-style: italic; font-weight: bold;">THE SECURITIES ACT OF 1933</div>
  <div style="text-align: justify;"> <br>
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  <div style="text-align: center; font-size: 24pt; font-weight: bold;">STAMPS.COM INC.</div>
  <div style="text-align: center;">(Exact name of registrant as specified in its charter)</div>
  <div style="text-align: justify;"> <br>
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          <div style="text-align: center; font-weight: bold;">Delaware</div>
        </td>
        <td style="width: 2%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        <td style="width: 49%; vertical-align: top; background-color: rgb(255, 255, 255);">
          <div style="text-align: center; font-weight: bold;">77-0454966</div>
        </td>
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      <tr>
        <td style="width: 49%; vertical-align: top; background-color: rgb(255, 255, 255);">
          <div style="text-align: center;">(State or other jurisdiction of incorporation or organization)</div>
        </td>
        <td style="width: 2%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        <td style="width: 49%; vertical-align: top; background-color: rgb(255, 255, 255);">
          <div style="text-align: center;">(I.R.S. Employer Identification No.)</div>
        </td>
      </tr>

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  <div style="text-align: center; font-weight: bold;">1990 E. Grand Avenue</div>
  <div style="text-align: center; font-weight: bold;">El Segundo, CA 90245</div>
  <div style="text-align: center;">(Address of Principal Executive Offices, including Zip Code)</div>
  <div><br>
  </div>
  <div style="text-align: center; font-weight: bold;">Stamps.com Inc. 2010 Equity Incentive Plan, as amended</div>
  <div style="text-align: center; font-weight: bold;">Stamps.com Inc. February 26, 2018 Equity Inducement Award</div>
  <div style="text-align: center; font-weight: bold;">Stamps.com Inc. 2018 MetaPack Equity Inducement Plan</div>
  <div style="text-align: center;">(Full title of the plan)</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: center; font-weight: bold;">Matthew A. Lipson, Esq.</div>
  <div style="text-align: center; font-weight: bold;">Chief Legal Officer and Secretary</div>
  <div style="text-align: center; font-weight: bold;">Stamps.com Inc.</div>
  <div style="text-align: center; font-weight: bold;">1990 E. Grand Avenue</div>
  <div style="text-align: center; font-weight: bold;">El Segundo, CA 90245</div>
  <div style="text-align: center; font-weight: bold;">(310) 482-5800</div>
  <div style="text-align: center;">(Name and address, and telephone number, including area code, of agent for service)</div>
  <div><br>
  </div>
  <div style="text-align: center; font-style: italic; font-weight: bold;">copies to:</div>
  <div style="text-align: center; font-weight: bold;">Katherine J. Blair, Esq.</div>
  <div style="text-align: center; font-weight: bold;">Manatt, Phelps &amp; Phillips, LLP</div>
  <div style="text-align: center; font-weight: bold;">11355 West Olympic Boulevard</div>
  <div style="text-align: center; font-weight: bold;">Los Angeles, CA 90064</div>
  <div style="text-align: center; font-weight: bold;">(310) 312-4000</div>
  <div style="text-align: center; font-weight: bold;">(310) 312-4224 Facsimile</div>
  <div><br>
  </div>
  <div>Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer&#8221; and &#8220;smaller reporting
    company&#8221; in Rule 12b-2 of the Exchange Act.</div>
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        <td style="width: 55%; vertical-align: middle; background-color: rgb(255, 255, 255);">
          <div>Large accelerated filer &#9745;</div>
        </td>
        <td style="width: 45%; vertical-align: middle; background-color: rgb(255, 255, 255);">
          <div>Accelerated filer &#9744;</div>
        </td>
      </tr>
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        </td>
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        </td>
      </tr>
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        <td style="width: 55%; vertical-align: middle; background-color: rgb(255, 255, 255);">
          <div>Non-accelerated filer &#9744;</div>
        </td>
        <td style="width: 45%; vertical-align: top; background-color: rgb(255, 255, 255);">
          <div>Smaller reporting company &#9744;</div>
        </td>
      </tr>
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        </td>
        <td style="width: 45%; vertical-align: middle; background-color: rgb(255, 255, 255);">
          <div>Emerging growth company&#160; &#9744;</div>
        </td>
      </tr>

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  <div> <br>
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  <div>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.&#160;&#160; &#9744;</div>
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  <div style="text-align: center; font-weight: bold;">CALCULATION OF REGISTRATION FEE</div>
  <div style="text-align: center;"> <br>
  </div>
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          <div style="text-align: center; font-weight: bold;">Title of Each Class of</div>
          <div style="text-align: center; font-weight: bold;">Securities to be Registered</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; border-left: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0);" colspan="2">
          <div style="text-align: center; font-weight: bold;">Amount to be</div>
          <div style="text-align: center; font-weight: bold;">Registered (1)</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0);" colspan="2">
          <div style="text-align: center; font-weight: bold;">Proposed </div>
          <div style="text-align: center; font-weight: bold;">Maximum </div>
          <div style="text-align: center; font-weight: bold;">Offering Price </div>
          <div style="text-align: center; font-weight: bold;">Per</div>
          <div style="text-align: center; font-weight: bold;">Share</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; border-left: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0);" colspan="2">
          <div style="text-align: center; font-weight: bold;">Proposed Maximum </div>
          <div style="text-align: center; font-weight: bold;">Aggregate Offering</div>
          <div style="text-align: center; font-weight: bold;">Price</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; border-bottom: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0);" colspan="2">
          <div style="text-align: center; font-weight: bold;">Amount of </div>
          <div style="text-align: center; font-weight: bold;">Registration</div>
          <div style="text-align: center;"><font style="font-weight: bold;">Fee</font><sup style="vertical-align: text-top; line-height: 1; font-size: smaller;"> </sup></div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
      </tr>
      <tr>
        <td valign="bottom" style="vertical-align: top; width: 52%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);">
          <div>Common Stock, par value $0.001 per share, reserved for issuance pursuant to the 2018 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan <font style="font-weight: bold;">(A)</font></div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>401,328</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>72.195</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">
          <div><font style="font-weight: bold;">(2)</font></div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>28,973,875.96</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">
          <div><font style="font-weight: bold;">(2)</font></div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>3,511.63</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
      </tr>
      <tr>
        <td valign="bottom" style="vertical-align: top; width: 52%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);">
          <div>Common Stock, par value $0.001 per share, underlying outstanding options granted in connection with the 2018 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan <font style="font-weight: bold;">(A)</font></div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>1,798,672</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>36.32</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">
          <div><font style="font-weight: bold;">(3)</font></div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>65,327,767.04</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">
          <div><font style="font-weight: bold;">(3)</font></div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>7,917.73</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
      </tr>
      <tr>
        <td valign="bottom" style="vertical-align: top; width: 52%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);">
          <div>Common Stock, par value $0.001 per share, reserved for issuance pursuant to the Stamps.com Inc. February 26, 2018 Equity Inducement Award</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>60,000</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>201.00</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">
          <div><font style="font-weight: bold;">(4)</font></div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>12,060,000.00</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">
          <div><font style="font-weight: bold;">(4)</font></div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>1,461.68</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
      </tr>
      <tr>
        <td valign="bottom" style="vertical-align: top; width: 52%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);">
          <div>Common Stock, par value $0.001 per share, reserved for issuance pursuant to outstanding options granted under the Stamps.com Inc. 2018 MetaPack Equity Inducement Plan</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>262,500</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>231.75</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">
          <div><font style="font-weight: bold;">(5)</font></div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>60,834,375.00</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">
          <div><font style="font-weight: bold;">(5)</font></div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">
          <div>7,373.13</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
      </tr>
      <tr>
        <td valign="bottom" style="vertical-align: top; width: 52%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);">
          <div>Total</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-left: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1"><br>
        </td>
        <td valign="bottom" style="vertical-align: bottom; width: 1%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>$</div>
        </td>
        <td valign="bottom" style="vertical-align: bottom; text-align: right; width: 9%; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">
          <div>20,264.16</div>
        </td>
        <td valign="bottom" nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
      </tr>

  </table>
  <div> <br>
  </div>
  <div>
    <div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zad52a78d836a4df4bba7521ae6224419">

          <tr>
            <td style="width: 18pt;"><br>
            </td>
            <td style="width: 24pt; vertical-align: top; font-weight: bold;"><sup style="vertical-align: text-top; line-height: 1; font-size: smaller;">(A)</sup></td>
            <td style="width: auto; vertical-align: top;">
              <div>Does not include an aggregate of 6,800,000 shares of Common Stock reserved for issuance pursuant to awards granted under the Stamps.com Inc. 2010 Equity Incentive Plan and registered on Forms S-8 (File No.s 333-168360 and 333-216990)
                filed with the Securities and Exchange Commission on July 28, 2010 and March 28, 2017 (<font style="font-style: italic;">see</font> &#8220;Explanatory Note,&#8221; <font style="font-style: italic;">infra.</font>).</div>
            </td>
          </tr>

      </table>
    </div>
  </div>
  <div><br>
  </div>
  <div>
    <div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z9bbe9541cdbc48e2bc722c6685c82d6c">

          <tr>
            <td style="width: 18pt;"><br>
            </td>
            <td style="width: 24pt; vertical-align: top; font-weight: bold;"><sup style="vertical-align: text-top; line-height: 1; font-size: smaller;">(1)</sup></td>
            <td style="width: auto; vertical-align: top;">
              <div>Pursuant to Rule 416(a) of the Securities Act of 1933, as amended (the &#8220;Securities Act&#8221;), this registration statement also covers any additional shares of Common Stock of Stamps.com Inc. (the &#8220;Registrant&#8221;) that become issuable under the
                Stamps.com Inc. 2010 Equity Incentive Plan (the &#8220;2010 EIP&#8221;), the Stamps.com Inc.<font style="font-weight: bold;">&#160;</font>2018 MetaPack Equity Inducement Plan (the &#8220;2018 MP EIP&#8221;), and the Stamps.com Inc. February 26, 2018 Equity Inducement
                Award (the &#8220;Feb.2018 EIA&#8221;) set forth herein by reason of any stock dividend, stock split, recapitalization or other similar transaction effected that results in an increase to the number of outstanding shares of the Registrant&#8217;s common
                stock.</div>
            </td>
          </tr>

      </table>
    </div>
  </div>
  <div><br>
  </div>
  <div>
    <div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zc7bafb5cf66540cc87ba44cc1df92cae">

          <tr>
            <td style="width: 18pt;"><br>
            </td>
            <td style="width: 24pt; vertical-align: top; font-weight: bold;"><sup style="vertical-align: text-top; line-height: 1; font-size: smaller;">(2)</sup></td>
            <td style="width: auto; vertical-align: top;">
              <div>Estimated solely for purposes of calculating the registration fee under Rule 457(c) and (h) of the Securities Act, based on a price of $72.195, which represents the average of the high and low prices of the Registrant&#8217;s Common Stock as
                quoted on The Nasdaq Global Select Market on September 23, 2019.</div>
            </td>
          </tr>

      </table>
    </div>
  </div>
  <div><br>
  </div>
  <div>
    <div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z62d4f2476fd54e8494ad3dc4feeea794">

          <tr>
            <td style="width: 18pt;"><br>
            </td>
            <td style="width: 24pt; vertical-align: top; font-weight: bold;"><sup style="vertical-align: text-top; line-height: 1; font-size: smaller;">(3)</sup></td>
            <td style="width: auto; vertical-align: top;">
              <div>Calculated pursuant to Rule 457(h) of the Securities Act, solely for the purpose of calculating the registration fee, based on a price of $36.32, which represents the weighted average exercise price per share of options granted under the
                2018 Amendment to the 2010 EIP.</div>
            </td>
          </tr>

      </table>
    </div>
  </div>
  <div><br>
  </div>
  <div>
    <div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z8f656756d04f475dbe1538149d30d857">

          <tr>
            <td style="width: 18pt;"><br>
            </td>
            <td style="width: 24pt; vertical-align: top; font-weight: bold;"><sup style="vertical-align: text-top; line-height: 1; font-size: smaller;">(4)</sup></td>
            <td style="width: auto; vertical-align: top;">
              <div>Calculated pursuant to Rule 457(h) of the Securities Act, solely for the purpose of calculating the registration fee, based on a price of $201.00, which represents the exercise price of the options granted pursuant to the Feb.2018 EIA.</div>
            </td>
          </tr>

      </table>
    </div>
  </div>
  <div><br>
  </div>
  <div>
    <div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z3d61a9e137f648179287274d053e59f0">

          <tr>
            <td style="width: 18pt;"><br>
            </td>
            <td style="width: 24pt; vertical-align: top; font-weight: bold;"><sup style="vertical-align: text-top; line-height: 1; font-size: smaller;">(5)</sup></td>
            <td style="width: auto; vertical-align: top;">
              <div>Calculated pursuant to Rule 457(h) of the Securities Act, solely for the purpose of calculating the registration fee, based on a price of $231.75, which represents the exercise price of the options granted pursuant to the 2018 MP EIP.</div>
            </td>
          </tr>

      </table>
      <div> <br>
      </div>
    </div>
  </div>
  <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
    <div style="page-break-after:always;" id="DSPFPageBreak">
      <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-weight: bold;">EXPLANATORY NOTE</div>
  <div><br>
  </div>
  <div style="text-align: justify;">Stamps.com Inc. (the &#8220;Registrant&#8221;) is filing this Registration Statement on Form S-8 for the purpose of registering (a) an additional 2,200,000 shares of its common stock, par value $0.001 per share (the &#8220;Common Stock&#8221;),
    issuable under the 2010 EIP that are reserved for issuance pursuant to the 2018 Amendment, and which shares of Common Stock are in addition to shares of Common Stock registered on the Registrant&#8217;s Forms S-8 filed on July 28, 2010 (File No. 333-168360)
    and on March 28, 2017 (File No. 333-216990); (b) 60,000 shares of Common Stock issuable under the Feb.2018 EIA; and (c) 262,500 shares of Common Stock issuable under the 2018 MP EIP.</div>
  <div><br>
  </div>
  <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
    <div style="page-break-after:always;" id="DSPFPageBreak">
      <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-weight: bold;">PART I</div>
  <div><br>
  </div>
  <div style="text-align: center; font-weight: bold;">INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: justify;">The documents containing the information specified in &#8220;Item 1. Plan Information&#8221; and &#8220;Item 2. Registrant Information and Employee Plan Annual Information&#8221; of Form S-8 will be sent or given to participants of the 2010
    EIP, the Feb.2018 EIA, and the 2018 MP EIP, as applicable, as specified by Rule 428(b)(1) under the Securities Act of 1933, as amended (the &#8220;Securities Act&#8221;). Such documents are not required to be, and are not, filed with the Securities and Exchange
    Commission (the &#8220;SEC&#8221;) either as part of this Registration Statement or as a prospectus or prospectus supplement pursuant to Rule 424 under the Securities Act. These documents and the documents incorporated by reference in this Registration Statement
    pursuant to Item 3 of Part II of Form S-8, taken together, constitute a prospectus that meets the requirements of Section 10(a) of the Securities Act.</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: center; font-weight: bold;">PART II</div>
  <div><br>
  </div>
  <div style="text-align: center; font-weight: bold;">INFORMATION REQUIRED IN THE REGISTRATION STATEMENT</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div>
    <div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z7fb39f37f9e843e58b13ac62a5642c24">

          <tr>
            <td style="width: 63pt; vertical-align: top; font-weight: bold;">Item 3.</td>
            <td style="width: auto; vertical-align: top;">
              <div style="font-weight: bold;">Incorporation of Documents by Reference.</div>
            </td>
          </tr>

      </table>
    </div>
  </div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: justify;">The following documents of the Registrant filed with the SEC are incorporated herein by reference:</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: justify; text-indent: 36pt;">(a)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Our Annual Report on <a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000025/stmp-12311810k.htm">Form 10-K for the fiscal year ended December 31, 2018</a>, filed with
    the SEC on March 1, 2019;</div>
  <div><br>
  </div>
  <div style="text-align: justify; text-indent: 36pt;">(b)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Our Quarterly Reports on Form 10-Q for the periods ended <a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000049/stmp-3311910q.htm">March 31, 2019</a> and <a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000090/stmp-6301910q.htm">June 30, 2019</a>, filed with the SEC on May 10, 2019 and August 8, 2019, respectively;</div>
  <div><br>
  </div>
  <div style="text-align: justify; text-indent: 36pt;">(c)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Our Current Reports on Form 8-K (other than portions of Current Reports on Form 8-K furnished pursuant to Item 2.02 or Item 7.01 of Form 8-K, unless otherwise indicated therein) filed with
    the SEC on <a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000022/q42018_earnings8-kxbody.htm">February 22, 2019</a>, <a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000032/a8-knewdirector3292019.htm">April 4,
      2019</a>, <a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000035/stmp040520198-k.htm">April 11, 2019</a>, <a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000044/q12019_earnings8-kxbody.htm">May 9, 2019</a>, <a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000073/form8-k2019shareholdervote.htm">June 14, 2019</a> and <a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000088/q22019_earnings8-kxbody.htm">August 7, 2019</a>;
    and</div>
  <div><br>
  </div>
  <div style="text-align: justify; text-indent: 36pt;">(d)&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;The description of our Common Stock contained in our <a href="http://www.sec.gov/Archives/edgar/data/1082923/000094420999001025/0000944209-99-001025.txt">Registration Statement on Form
      S-1 (Registration No. 333-77025)</a>, <a href="http://www.sec.gov/Archives/edgar/data/1082923/000094420999000991/0000944209-99-000991.txt">our Registration Statement on Form 8-A (Registration No. 000-26427)</a> and our <a href="http://www.sec.gov/Archives/edgar/data/1082923/000094420999001858/0000944209-99-001858.txt">Registration Statement on Form S-1 (Registration No. 333-90115)</a> and the information contained under Proposal 2 in our <a href="http://www.sec.gov/Archives/edgar/data/1082923/000114420408020215/v109194_def14a.htm">Proxy Statement (DEF 14A) filed on April 2, 2008</a>, and any amendment or report filed for the purpose of updating any such description.</div>
  <div><br>
  </div>
  <div style="text-align: justify; text-indent: 36pt;">All documents (other than portions of Current Reports on Form 8-K furnished pursuant to Item 2.02 or Item 7.01 of Form 8-K, unless otherwise indicated therein) filed pursuant to Section 13(a), 13(c),
    14 or 15(d) of the Securities Exchange Act of 1934, or the Exchange Act, after the date of this Registration Statement and prior to the filing of a post-effective amendment which indicates that all securities offered hereby have been sold or which
    de-registers all securities then remaining unsold shall be deemed to be incorporated by reference into this Registration Statement and to be a part hereof from the date of filing such documents. Any statement contained in a document incorporated or
    deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained in any subsequently filed document which also is deemed to be incorporated
    by reference herein modifies or supersedes such statement.&#160; Any such statement so modified or superseded shall not be deemed, except as so modified or amended, to constitute a part of this Registration Statement.</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div>
    <div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="z51452d4a77384d508425b4cc1f18e111">

          <tr>
            <td style="width: 63pt; vertical-align: top; font-weight: bold;">Item 4.</td>
            <td style="width: auto; vertical-align: top;">
              <div style="font-weight: bold;">Description of Securities.</div>
            </td>
          </tr>

      </table>
    </div>
  </div>
  <div style="text-align: justify;"> <br>
  </div>
  <div>Not applicable.</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div>
    <div>
      <table cellspacing="0" cellpadding="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; text-align: left; color: #000000;" class="DSPFListTable" id="zcd0b46db0bfd4e4fa1956570b53f385e">

          <tr>
            <td style="width: 63pt; vertical-align: top; font-weight: bold;">Item 5.</td>
            <td style="width: auto; vertical-align: top;">
              <div style="font-weight: bold;">Interests of Named Experts and Counsel.</div>
            </td>
          </tr>

      </table>
    </div>
  </div>
  <div style="text-align: justify;"> <br>
  </div>
  <div>Not applicable.</div>
  <div> <br>
  </div>
  <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
    <div style="page-break-after:always;" id="DSPFPageBreak">
      <hr noshade="noshade" style="margin: 4px 0px; width: 100%; border-width: 0; height: 2px; color: #000000; background-color: #000000; clear: both;"></div>
  </div>
  <div>
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        <tr style="vertical-align: top;">
          <td style="vertical-align: top; width: 63pt;">
            <div style="text-align: left;"><font style="font-weight: bold;">Item 6.</font></div>
          </td>
          <td style="align: left; vertical-align: top; width: auto;">
            <div style="text-align: left;"><font style="font-weight: bold;">Indemnification of Directors and Officers.</font></div>
          </td>
        </tr>

    </table>
  </div>
  <div><br>
  </div>
  <div style="text-align: justify;">Section 145 of the General Corporation Law of the State of Delaware provides, in part, 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&#160; suit or proceeding because such person is or was a director, officer, employee or agent of the corporation or is or was serving at the request of the corporation, as a director, officer, employee or agent of another
    corporation, partnership, joint venture, trust or other enterprise, against all expenses, judgments, fines and amounts paid in settlement, actually and reasonably incurred by him in connection with such suit or proceeding if he acted in good faith and
    in a manner he reasonably believed to be in or not opposed to the best interests of the corporation (and with respect to any criminal action or proceeding, had no reasonable cause to believe his conduct was unlawful). Similar indemnity is permitted to
    be provided to such persons in connection with an action or suit by or in the right of the corporation, provided such person acted in good faith and in a manner believed to be in or not opposed to the best interests of the corporation, and provided
    further (unless a court of competent jurisdiction otherwise determines) that such person shall not have been adjudged liable to the corporation. Delaware law further provides that the indemnification provided thereunder shall not be deemed exclusive of
    any other rights to which the directors and officers may be entitled under the corporation&#8217;s bylaws, or by reason of any agreement, a vote of stockholders or disinterested directors or otherwise.</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: justify;">Article VIII of our amended and restated certificate of incorporation, as amended (the &#8220;Certificate&#8221;), provides, in part, that we shall indemnify (and advance expenses to) to the fullest extent authorized under Delaware
    General Corporation Law, each person who is or was a party or is threatened to be made a party to or is in any way involved in any threatened, pending or completed action, suit or proceeding by reason of the fact that he (or a person of whom he is the
    legal representative) is or was a director or officer of us or a subsidiary, or is or was serving at our request as a director or officer of another entity or enterprise, or was a director or officer of a corporation that was our predecessor (or of
    another entity or enterprise at the request of such predecessor), against expenses, judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in the action, suit or proceeding. In addition, the Certificate provides
    that we are authorized to provide, to the fullest extent provided by applicable law, indemnification to our directors, officers, employees and agents, through bylaw provisions, agreements with such persons or otherwise in excess of indemnification and
    advancement permitted by Section 145 of the Delaware General Corporation Law, subject to limits created by applicable Delaware (statutory or non-statutory) laws, with respect to action for breach of duty to us, our stockholders and others.</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: justify;">Article VII, Section 6 of our bylaws, as amended, also provides, in part, that we shall, to the fullest extent authorized by Delaware law, indemnify (and advance expenses to under certain circumstances) any current or
    former directors or officers made, or threatened to be made, party to an action or proceeding whether criminal, civil, administrative or investigative, by reason of being or having been a director or officer of us or a predecessor corporation or, while
    a director or officer of us, is or was serving at our request as a director or officer of another corporation or other entity, and that such indemnification is not exclusive to other indemnification rights those persons may have. In addition, our board
    of directors, in its discretion, shall have the power to indemnify any person other than a director made party to any action, suit or proceeding by reason of the fact that he, his testator or intestate, is or was an officer or employee of ours.</div>
  <div><br>
  </div>
  <div style="text-align: justify;">Section 102(b)(7) of the General Corporation Law of the State of Delaware permits a corporation to eliminate, and our Certificate provides for the elimination of, the personal liability of its directors or its
    stockholders for monetary damages for a breach of fiduciary duty as a director, except where the director breached his or her duty of loyalty, failed to act in good faith, engaged in intentional misconduct or knowingly violated a law, authorized the
    payment of a dividend or approved a stock repurchase in violation of Delaware corporate law or obtained an improper personal benefit.</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: justify;">We have entered into indemnification agreements with our directors containing provisions that may require us, among other things, to indemnify them against liabilities that may arise by reason of their status or service
    as directors, officers, employees, agents or fiduciaries of the corporation other than liabilities arising from willful misconduct of a culpable nature, to advance their expense incurred as a result of any proceeding against them as to which they could
    be indemnified, and to obtain directors&#8217; and officers&#8217; liability insurance if maintained for other directors or officers. We also maintain directors&#8217; and officers&#8217; liability insurance.</div>
  <div><br>
  </div>
  <div>
    <div>
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          <tr>
            <td style="width: 63pt; vertical-align: top; font-weight: bold;">Item 7.</td>
            <td style="width: auto; vertical-align: top;">
              <div style="font-weight: bold;">Exemption from Registration Claimed.</div>
            </td>
          </tr>

      </table>
    </div>
  </div>
  <div><br>
  </div>
  <div>Not Applicable.</div>
  <div> <br>
  </div>
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    <div style="page-break-after:always;" id="DSPFPageBreak">
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    <div>
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          <tr>
            <td style="width: 63pt; vertical-align: top; font-weight: bold;">Item 8.</td>
            <td style="width: auto; vertical-align: top;">
              <div style="font-weight: bold;">Exhibits.</div>
            </td>
          </tr>

      </table>
    </div>
  </div>
  <div style="text-align: justify;"> <br>
  </div>
  <table cellspacing="0" cellpadding="0" border="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: rgb(0, 0, 0);" id="z83d03d16bad840e49f03b0742152bfb1">

      <tr>
        <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0);">
          <div style="font-weight: bold;"><u>Exhibit </u></div>
          <div style="font-weight: bold;"><u>Number</u></div>
        </td>
        <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
          <div style="font-weight: bold;"><u>Description</u></div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000114420408044903/v121822_ex3-1.htm">4.1</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;">Amended and Restated Certificate of Incorporation of the Registrant, as amended (incorporated by reference to Exhibit 3.1 to our Form 10-Q filed with the SEC on August 8, 2008 (File No. 000-26427)).</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292318000125/ex3ii1.htm">4.2</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;">Amended and Restated Bylaws of the Registrant (incorporated by reference to Exhibit 3(ii).1 to our Form 10-Q filed with the SEC on November 9, 2018 (File No. 000-26427)).</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000094420999001015/0000944209-99-001015.txt">4.3</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;">Specimen common stock certificate (incorporated herein by reference to Exhibit 4.2 to Amendment No. 4 to our Registration Statement on Form S-1, filed with the SEC on June 22, 1999 (File No. 333-77025)).</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;"><a href="ex5_1.htm">5.1</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;">Opinion of Manatt, Phelps &amp; Phillips, LLP</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;"><a href="ex23_1.htm">23.1</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;">Consent of Ernst &amp; Young LLP</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;"><a href="ex5_1.htm">23.2</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;">Consent of Manatt, Phelps &amp; Phillips, LLP (included in Exhibit 5.1)</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;"><a href="#SIGNATURES">24.1</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;">Power of Attorney (included on the signature page of this Registration Statement)</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292318000032/stmp-05012018def14a.htm">99.1</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;">Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292318000032/stmp-05012018def14a.htm">99.2</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;">2014 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292318000032/stmp-05012018def14a.htm">99.3</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;">2016 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292318000032/stmp-05012018def14a.htm">99.4</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;">2018 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex E of our Definitive Proxy Statement on Form 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000114420410039849/v191638_ex4-4.htm">99.5</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;">Form of Stock Option Agreement (incorporated by reference to Exhibit 4.4 to our Form S-8, filed with the SEC on July 28, 2010 (File No. 333-168360)).</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000025/ex10-38.htm">99.6</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
          <div style="text-align: justify;">Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.38 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000025/ex10-39.htm">99.7</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;">Form of Non-CSOP Award Agreement to Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.39 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000025/ex10-40.htm">99.8</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);">
          <div style="text-align: justify;">Form of CSOP Award Agreement to Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.40 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).</div>
        </td>
      </tr>
      <tr>
        <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000025/ex10-7.htm">99.9</a></div>
        </td>
        <td style="width: 1%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
        <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
          <div style="text-align: justify;">Form of Stamps.com Inc. February 26, 2018 Equity Inducement Award (incorporated by reference to Exhibit 10.7 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).</div>
        </td>
      </tr>

  </table>
  <div><br>
  </div>
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    <div style="page-break-after:always;" id="DSPFPageBreak">
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          <tr>
            <td style="width: 63pt; vertical-align: top; font-weight: bold;">ITEM 9.</td>
            <td style="width: auto; vertical-align: top;">
              <div style="font-weight: bold;">Undertakings.</div>
            </td>
          </tr>

      </table>
    </div>
  </div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: justify; text-indent: 36pt;">(a) The undersigned registrant hereby undertakes:</div>
  <div><br>
  </div>
  <div style="text-align: justify; text-indent: 72pt;">(1) To file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:</div>
  <div><br>
  </div>
  <div style="text-align: justify; text-indent: 36pt; margin-left: 72pt;">(i) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933, as amended (the &#8220;Securities Act&#8221;);</div>
  <div><br>
  </div>
  <div style="text-align: justify; text-indent: 36pt; margin-left: 72pt;">(ii) To reflect in the prospectus any facts or events arising after the effective date of the Registration Statement (or the most recent post-effective amendment thereof) which,
    individually or in the aggregate, represent a fundamental change in the information set forth in the Registration Statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of
    securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the
    aggregate, the changes in volume and price represent no greater than 20% change in the maximum aggregate offering price set forth in the &#8220;Calculation of Registration Fee&#8221; table in the effective registration statement;</div>
  <div><br>
  </div>
  <div style="text-align: justify; text-indent: 36pt; margin-left: 72pt;">(iii) 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;</div>
  <div><br>
  </div>
  <div style="text-align: justify; text-indent: 72pt;">provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) above do not apply if the Registration Statement is on Form S-8, and the information required to be included in a post-effective amendment by
    those paragraphs is contained in reports filed with or furnished to the SEC by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;), that are incorporated by reference in the
    Registration Statement;</div>
  <div><br>
  </div>
  <div style="text-align: justify; text-indent: 72pt;">(2) That, for the purpose of determining any liability under the Securities Act, 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; and</div>
  <div><br>
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  <div style="text-align: justify; text-indent: 72pt;">(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.</div>
  <div><br>
  </div>
  <div style="text-align: justify; text-indent: 36pt;">(b) The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the registrant&#8217;s annual report pursuant to Section 13(a) or
    15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan&#8217;s annual report pursuant to Section 15(d) of the Exchange Act) 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.</div>
  <div><br>
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  <div style="text-align: justify; text-indent: 36pt;">(c) Insofar as indemnification for liabilities arising under the Securities Act may be permitted to the directors, officers, and controlling persons of the registrant pursuant to the foregoing
    provisions, or otherwise, the registrant has been advised that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act 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 and will be governed by final adjudication of such issue.</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
    <div style="page-break-after:always;" id="DSPFPageBreak">
      <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-weight: bold;"><a name="SIGNATURES"><!--Anchor--></a>SIGNATURES</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: justify; text-indent: 54pt;">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 Los Angeles, State of California on September 27, 2019.</div>
  <div style="text-align: justify;"> <br>
  </div>
  <table cellspacing="0" cellpadding="0" border="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;" id="z164336090a994ebb9f55c1701d8b06f5">

      <tr>
        <td style="width: 50%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
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          <div>STAMPS.COM INC.</div>
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        <td style="width: 50%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
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        </td>
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        </td>
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      <tr>
        <td style="width: 50%; vertical-align: top; background-color: rgb(255, 255, 255); padding-bottom: 2px;">&#160;</td>
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          <div>By:</div>
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        <td style="width: 27%; vertical-align: top; background-color: rgb(255, 255, 255); border-bottom: 2px solid rgb(0, 0, 0);">
          <div>/s/ Kenneth McBride</div>
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        <td style="width: 20%; vertical-align: top; background-color: rgb(255, 255, 255); padding-bottom: 2px;"><br>
        </td>
      </tr>
      <tr>
        <td style="width: 50%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        <td style="width: 3%; vertical-align: top; background-color: rgb(255, 255, 255);"><br>
        </td>
        <td style="vertical-align: bottom; background-color: rgb(255, 255, 255);">
          <div>Kenneth McBride</div>
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        <td style="vertical-align: bottom; background-color: rgb(255, 255, 255);">&#160;</td>
      </tr>
      <tr>
        <td style="width: 50%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        <td style="width: 3%; vertical-align: top; background-color: rgb(255, 255, 255);"><br>
        </td>
        <td colspan="2" style="vertical-align: top; background-color: rgb(255, 255, 255);">
          <div>Chief Executive Officer and Chairman of </div>
          <div>the Board of Directors</div>
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  </table>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: justify; text-indent: 54pt;">KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Kenneth McBride and Jeffrey Carberry, and each of them, his true and lawful attorney-in-fact and
    agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any or all amendments to this Registration Statement, and to file the same with all exhibits thereto, and all other
    documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the
    premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his substitute, may lawfully do or cause to be done by virtue hereof.</div>
  <div style="text-align: justify;"> <br>
  </div>
  <div style="text-align: justify; text-indent: 54pt;">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.</div>
  <div style="text-align: justify; text-indent: 54pt;"> <br>
  </div>
  <div>
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            <div style="text-align: center; font-weight: bold;"><u>Signature</u></div>
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          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">
            <div style="text-align: center; font-weight: bold;"><u>Title</u></div>
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          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">
            <div style="text-align: center; font-weight: bold;"><u>Date</u></div>
          </td>
        </tr>
        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        </tr>
        <tr>
          <td style="width: 30%; vertical-align: bottom; background-color: #FFFFFF; border-bottom: #000000 2px solid;">
            <div style="text-align: center;">/s/ Kenneth McBride</div>
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          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
            <div style="text-align: center;">Chairman and Chief Executive Officer</div>
            <div style="text-align: center;">(Principal Executive Officer)</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: bottom; background-color: rgb(255, 255, 255);">
            <div style="text-align: center;">September 26, 2019</div>
          </td>
        </tr>
        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
            <div style="text-align: center;">Kenneth McBride</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        </tr>
        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        </tr>
        <tr>
          <td style="width: 30%; vertical-align: bottom; background-color: #FFFFFF; border-bottom: #000000 2px solid;">
            <div style="text-align: center;">/s/ Jeffrey Carberry</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
            <div style="text-align: center;">Chief Financial Officer</div>
            <div style="text-align: center;">(Principal Financial and Accounting Officer)</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: bottom; background-color: rgb(255, 255, 255);">
            <div style="text-align: center;">September 26, 2019</div>
          </td>
        </tr>
        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
            <div style="text-align: center;">Jeffrey Carberry</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        </tr>
        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        </tr>
        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF; border-bottom: #000000 2px solid;">
            <div style="text-align: center;">/s/ Mohan P. Ananda</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
            <div style="text-align: center;">Director</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">
            <div style="text-align: center;">September 26, 2019</div>
          </td>
        </tr>
        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
            <div style="text-align: center;">Mohan P. Ananda</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        </tr>
        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        </tr>

    </table>
    <div>
      <table cellspacing="0" cellpadding="0" border="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;" id="z857eb62bdcdf43d5919fbe5ae8fdede0">

          <tr>
            <td style="width: 30%; vertical-align: top; background-color: #FFFFFF; border-bottom: #000000 2px solid;">
              <div style="text-align: center;">
                <div>/s/ David Habiger</div>
              </div>
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            <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
              <div style="text-align: center;">Director</div>
            </td>
            <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">
              <div style="text-align: center;">
                <div>September 26, 2019</div>
              </div>
            </td>
          </tr>
          <tr>
            <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
              <div style="text-align: center;">
                <div>David Habiger</div>
              </div>
            </td>
            <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
            <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
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          <tr>
            <td rowspan="1" style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
            <td rowspan="1" style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td rowspan="1" style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
            <td rowspan="1" style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td rowspan="1" style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
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    <div style="text-align: justify;">
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          <tr>
            <td style="width: 30%; vertical-align: top; background-color: #FFFFFF; border-bottom: #000000 2px solid;">
              <div style="text-align: center;">
                <div>/s/ G. Bradford Jones</div>
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            <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
              <div style="text-align: center;">Director</div>
            </td>
            <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">
              <div style="text-align: center;">September 27, 2019</div>
            </td>
          </tr>
          <tr>
            <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
              <div style="text-align: center;">
                <div>G. Bradford Jones</div>
              </div>
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            <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
            <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          </tr>
          <tr>
            <td rowspan="1" style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
            <td rowspan="1" style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td rowspan="1" style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
            <td rowspan="1" style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
            <td rowspan="1" style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          </tr>

      </table>
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    <table cellspacing="0" cellpadding="0" border="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;" id="zddb1f340081144ebb123ddf0943e09ac">

        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF; border-bottom: #000000 2px solid;">
            <div style="text-align: center;">/s/ Kate Ann May</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
            <div style="text-align: center;">Director</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">
            <div style="text-align: center;">September 27, 2019</div>
          </td>
        </tr>
        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
            <div style="text-align: center;">Kate Ann May</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        </tr>
        <tr>
          <td rowspan="1" style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td rowspan="1" style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td rowspan="1" style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td rowspan="1" style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td rowspan="1" style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        </tr>

    </table>
    <table cellspacing="0" cellpadding="0" border="0" style="font-family: 'Times New Roman'; font-size: 10pt; width: 100%; border-collapse: collapse; text-align: left; color: #000000;" id="z17c2e1076dfc4fa7a73212b445bdfe15">

        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF; border-bottom: #000000 2px solid;">
            <div style="text-align: center;">/s/ Theodore R. Samuels</div>
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          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
            <div style="text-align: center;">Director</div>
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          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">
            <div style="text-align: center;">September 26, 2019</div>
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        </tr>
        <tr>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">
            <div style="text-align: center;">Theodore R. Samuels</div>
          </td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: #FFFFFF;">&#160;</td>
          <td style="width: 5%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
          <td style="width: 30%; vertical-align: top; background-color: rgb(255, 255, 255);">&#160;</td>
        </tr>

    </table>
    <div> <br>
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    <div style="clear: both; margin-top: 10pt; margin-bottom: 10pt;" id="DSPFPageBreakArea">
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    <div style="text-align: center; font-weight: bold;">Exhibit Index</div>
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        <tr>
          <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0);">
            <div style="font-weight: bold;"><u>Exhibit Number</u></div>
          </td>
          <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="font-weight: bold;"><u>Description</u></div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000114420408044903/v121822_ex3-1.htm">4.1</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;">Amended and Restated Certificate of Incorporation of the Registrant, as amended (incorporated by reference to Exhibit 3.1 to our Form 10-Q filed with the SEC on August 8, 2008 (File No. 000-26427)).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292318000125/ex3ii1.htm">4.2</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;">Amended and Restated Bylaws of the Registrant (incorporated by reference to Exhibit 3(ii).1 to our Form 10-Q filed with the SEC on November 9, 2018 (File No. 000-26427)).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000094420999001015/0000944209-99-001015.txt">4.3</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;">Specimen common stock certificate (incorporated herein by reference to Exhibit 4.2 to Amendment No. 4 to our Registration Statement on Form S-1, filed with the SEC on June 22, 1999 (File No. 333-77025)).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;"><a href="ex5_1.htm">5.1</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;">Opinion of Manatt, Phelps &amp; Phillips, LLP</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;"><a href="ex23_1.htm">23.1</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;">Consent of Ernst &amp; Young LLP</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;"><a href="ex5_1.htm">23.2</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;">Consent of Manatt, Phelps &amp; Phillips, LLP (included in Exhibit 5.1)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;">24.1</div>
          </td>
          <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;">Power of Attorney (included on the signature page of this Registration Statement)</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292318000032/stmp-05012018def14a.htm">99.1</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;">Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form&#160; 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292318000032/stmp-05012018def14a.htm">99.2</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;">2014 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form&#160; 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292318000032/stmp-05012018def14a.htm">99.3</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;">2016 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form&#160; 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292318000032/stmp-05012018def14a.htm">99.4</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;">2018 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex E of our Definitive Proxy Statement on Form&#160; 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000114420410039849/v191638_ex4-4.htm">99.5</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;">Form of Stock Option Agreement (incorporated by reference to Exhibit 4.4 to our Form S-8, filed with the SEC on July 28, 2010 (File No. 333-168360)).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000025/ex10-38.htm">99.6</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255);">
            <div style="text-align: justify;">Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.38 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-width: 2px; border-style: solid; border-color: rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000025/ex10-39.htm">99.7</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); border-left: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-top: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;">Form of Non-CSOP Award Agreement to Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.39 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000025/ex10-40.htm">99.8</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); background-color: rgb(204, 238, 255); border-bottom: 2px solid rgb(0, 0, 0);">
            <div style="text-align: justify;">Form of CSOP Award Agreement to Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.40 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).</div>
          </td>
        </tr>
        <tr>
          <td style="width: 10%; vertical-align: top; border-left: 2px solid rgb(0, 0, 0); border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;"><a href="http://www.sec.gov/Archives/edgar/data/1082923/000108292319000025/ex10-7.htm">99.9</a></div>
          </td>
          <td style="width: 1%; vertical-align: top; border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);" colspan="1">&#160;</td>
          <td style="width: 89%; vertical-align: top; border-right: 2px solid rgb(0, 0, 0); border-bottom: 2px solid rgb(0, 0, 0); background-color: rgb(255, 255, 255);">
            <div style="text-align: justify;">Form of Stamps.com Inc. February 26, 2018 Equity Inducement Award (incorporated by reference to Exhibit 10.7 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).</div>
          </td>
        </tr>

    </table>
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[{"type": "S-8", "sequence": "1", "filename": "forms8.htm", "description": "S-8", "secsgml_size_bytes": 114479}]
{"company-data": {"conformed-name": "STAMPS.COM INC", "cik": "0001082923", "assigned-sic": "7389", "irs-number": "770454966", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-233999", "film-number": "191123889"}, "business-address": {"street1": "1990 E. GRAND AVE", "city": "EL SEGUNDO", "state": "CA", "zip": "90245", "phone": "3104825800"}, "mail-address": {"street1": "1990 E. GRAND AVE", "city": "EL SEGUNDO", "state": "CA", "zip": "90245"}, "former-company": {"former-conformed-name": "STAMPS COM INC", "date-changed": "19990421"}}
As filed with the Securities and Exchange Commission on September 27, 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
STAMPS.COM INC.
(Exact name of registrant as specified in its charter)
Delaware
77-0454966
(State or other jurisdiction of incorporation or organization)
(I.R.S. Employer Identification No.)
1990 E. Grand Avenue
El Segundo, CA 90245
(Address of Principal Executive Offices, including Zip Code)
Stamps.com Inc. 2010 Equity Incentive Plan, as amended
Stamps.com Inc. February 26, 2018 Equity Inducement Award
Stamps.com Inc. 2018 MetaPack Equity Inducement Plan
(Full title of the plan)
Matthew A. Lipson, Esq.
Chief Legal Officer and Secretary
Stamps.com Inc.
1990 E. Grand Avenue
El Segundo, CA 90245
(310) 482-5800
(Name and address, and telephone number, including area code, of agent for service)
copies to:
Katherine J. Blair, Esq.
Manatt, Phelps & Phillips, LLP
11355 West Olympic Boulevard
Los Angeles, CA 90064
(310) 312-4000
(310) 312-4224 Facsimile
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated filer," "accelerated filer" and "smaller reporting
    company" in Rule 12b-2 of the Exchange Act.
Large accelerated filer ☑
Accelerated filer ☐
Non-accelerated filer ☐
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 Each Class 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, par value $0.001 per share, reserved for issuance pursuant to the 2018 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan
(A)
401,328
$
72.195
(2)
$
28,973,875.96
(2)
$
3,511.63
Common Stock, par value $0.001 per share, underlying outstanding options granted in connection with the 2018 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan
(A)
1,798,672
$
36.32
(3)
$
65,327,767.04
(3)
$
7,917.73
Common Stock, par value $0.001 per share, reserved for issuance pursuant to the Stamps.com Inc. February 26, 2018 Equity Inducement Award
60,000
$
201.00
(4)
$
12,060,000.00
(4)
$
1,461.68
Common Stock, par value $0.001 per share, reserved for issuance pursuant to outstanding options granted under the Stamps.com Inc. 2018 MetaPack Equity Inducement Plan
262,500
$
231.75
(5)
$
60,834,375.00
(5)
$
7,373.13
Total
$
20,264.16
(A)
Does not include an aggregate of 6,800,000 shares of Common Stock reserved for issuance pursuant to awards granted under the Stamps.com Inc. 2010 Equity Incentive Plan and registered on Forms S-8 (File No.s 333-168360 and 333-216990)
                filed with the Securities and Exchange Commission on July 28, 2010 and March 28, 2017 (
see
"Explanatory Note,"
infra.
).
(1)
Pursuant to Rule 416(a) of the Securities Act of 1933, as amended (the "Securities Act"), this registration statement also covers any additional shares of Common Stock of Stamps.com Inc. (the "Registrant") that become issuable under the
                Stamps.com Inc. 2010 Equity Incentive Plan (the "2010 EIP"), the Stamps.com Inc.
2018 MetaPack Equity Inducement Plan (the "2018 MP EIP"), and the Stamps.com Inc. February 26, 2018 Equity Inducement
                Award (the "Feb.2018 EIA") set forth herein by reason of any stock dividend, stock split, recapitalization or other similar transaction effected that results in an increase to the number of outstanding shares of the Registrant's common
                stock.
(2)
Estimated solely for purposes of calculating the registration fee under Rule 457(c) and (h) of the Securities Act, based on a price of $72.195, which represents the average of the high and low prices of the Registrant's Common Stock as
                quoted on The Nasdaq Global Select Market on September 23, 2019.
(3)
Calculated pursuant to Rule 457(h) of the Securities Act, solely for the purpose of calculating the registration fee, based on a price of $36.32, which represents the weighted average exercise price per share of options granted under the
                2018 Amendment to the 2010 EIP.
(4)
Calculated pursuant to Rule 457(h) of the Securities Act, solely for the purpose of calculating the registration fee, based on a price of $201.00, which represents the exercise price of the options granted pursuant to the Feb.2018 EIA.
(5)
Calculated pursuant to Rule 457(h) of the Securities Act, solely for the purpose of calculating the registration fee, based on a price of $231.75, which represents the exercise price of the options granted pursuant to the 2018 MP EIP.
EXPLANATORY NOTE
Stamps.com Inc. (the "Registrant") is filing this Registration Statement on Form S-8 for the purpose of registering (a) an additional 2,200,000 shares of its common stock, par value $0.001 per share (the "Common Stock"),
    issuable under the 2010 EIP that are reserved for issuance pursuant to the 2018 Amendment, and which shares of Common Stock are in addition to shares of Common Stock registered on the Registrant's Forms S-8 filed on July 28, 2010 (File No. 333-168360)
    and on March 28, 2017 (File No. 333-216990); (b) 60,000 shares of Common Stock issuable under the Feb.2018 EIA; and (c) 262,500 shares of Common Stock issuable under the 2018 MP EIP.
PART I
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
The documents containing the information specified in "Item 1. Plan Information" and "Item 2. Registrant Information and Employee Plan Annual Information" of Form S-8 will be sent or given to participants of the 2010
    EIP, the Feb.2018 EIA, and the 2018 MP EIP, as applicable, as specified by Rule 428(b)(1) under the Securities Act of 1933, as amended (the "Securities Act"). Such documents are not required to be, and are not, filed with the Securities and Exchange
    Commission (the "SEC") either as part of this Registration Statement or as a prospectus or prospectus supplement pursuant to Rule 424 under the Securities Act. These documents and the documents incorporated by reference in this Registration Statement
    pursuant to Item 3 of Part II of Form S-8, taken together, constitute a prospectus that meets the requirements of Section 10(a) of the Securities Act.
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
Item 3.
Incorporation of Documents by Reference.
The following documents of the Registrant filed with the SEC are incorporated herein by reference:
(a)          Our Annual Report on
Form 10-K for the fiscal year ended December 31, 2018
, filed with
    the SEC on March 1, 2019;
(b)          Our Quarterly Reports on Form 10-Q for the periods ended
March 31, 2019
and
June 30, 2019
, filed with the SEC on May 10, 2019 and August 8, 2019, respectively;
(c)          Our Current Reports on Form 8-K (other than portions of Current Reports on Form 8-K furnished pursuant to Item 2.02 or Item 7.01 of Form 8-K, unless otherwise indicated therein) filed with
    the SEC on
February 22, 2019
,
April 4,
      2019
,
April 11, 2019
,
May 9, 2019
,
June 14, 2019
and
August 7, 2019
;
    and
(d)          The description of our Common Stock contained in our
Registration Statement on Form
      S-1 (Registration No. 333-77025)
,
our Registration Statement on Form 8-A (Registration No. 000-26427)
and our
Registration Statement on Form S-1 (Registration No. 333-90115)
and the information contained under Proposal 2 in our
Proxy Statement (DEF 14A) filed on April 2, 2008
, and any amendment or report filed for the purpose of updating any such description.
All documents (other than portions of Current Reports on Form 8-K furnished pursuant to Item 2.02 or Item 7.01 of Form 8-K, unless otherwise indicated therein) filed pursuant to Section 13(a), 13(c),
    14 or 15(d) of the Securities Exchange Act of 1934, or the Exchange Act, after the date of this Registration Statement and prior to the filing of a post-effective amendment which indicates that all securities offered hereby have been sold or which
    de-registers all securities then remaining unsold shall be deemed to be incorporated by reference into this Registration Statement and to be a part hereof from the date of filing such documents. Any statement contained in a document incorporated or
    deemed to be incorporated by reference herein shall be deemed to be modified or superseded for purposes of this Registration Statement to the extent that a statement contained in any subsequently filed document which also is deemed to be incorporated
    by reference herein modifies or supersedes such statement.  Any such statement so modified or superseded shall not be deemed, except as so modified or amended, to constitute a part of this Registration Statement.
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 of the General Corporation Law of the State of Delaware provides, in part, 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  suit or proceeding because such person is or was a director, officer, employee or agent of the corporation or is or was serving at the request of the corporation, as a director, officer, employee or agent of another
    corporation, partnership, joint venture, trust or other enterprise, against all expenses, judgments, fines and amounts paid in settlement, actually and reasonably incurred by him in connection with such suit or proceeding if he acted in good faith and
    in a manner he reasonably believed to be in or not opposed to the best interests of the corporation (and with respect to any criminal action or proceeding, had no reasonable cause to believe his conduct was unlawful). Similar indemnity is permitted to
    be provided to such persons in connection with an action or suit by or in the right of the corporation, provided such person acted in good faith and in a manner believed to be in or not opposed to the best interests of the corporation, and provided
    further (unless a court of competent jurisdiction otherwise determines) that such person shall not have been adjudged liable to the corporation. Delaware law further provides that the indemnification provided thereunder shall not be deemed exclusive of
    any other rights to which the directors and officers may be entitled under the corporation's bylaws, or by reason of any agreement, a vote of stockholders or disinterested directors or otherwise.
Article VIII of our amended and restated certificate of incorporation, as amended (the "Certificate"), provides, in part, that we shall indemnify (and advance expenses to) to the fullest extent authorized under Delaware
    General Corporation Law, each person who is or was a party or is threatened to be made a party to or is in any way involved in any threatened, pending or completed action, suit or proceeding by reason of the fact that he (or a person of whom he is the
    legal representative) is or was a director or officer of us or a subsidiary, or is or was serving at our request as a director or officer of another entity or enterprise, or was a director or officer of a corporation that was our predecessor (or of
    another entity or enterprise at the request of such predecessor), against expenses, judgments, fines and amounts paid in settlement actually and reasonably incurred by the person in the action, suit or proceeding. In addition, the Certificate provides
    that we are authorized to provide, to the fullest extent provided by applicable law, indemnification to our directors, officers, employees and agents, through bylaw provisions, agreements with such persons or otherwise in excess of indemnification and
    advancement permitted by Section 145 of the Delaware General Corporation Law, subject to limits created by applicable Delaware (statutory or non-statutory) laws, with respect to action for breach of duty to us, our stockholders and others.
Article VII, Section 6 of our bylaws, as amended, also provides, in part, that we shall, to the fullest extent authorized by Delaware law, indemnify (and advance expenses to under certain circumstances) any current or
    former directors or officers made, or threatened to be made, party to an action or proceeding whether criminal, civil, administrative or investigative, by reason of being or having been a director or officer of us or a predecessor corporation or, while
    a director or officer of us, is or was serving at our request as a director or officer of another corporation or other entity, and that such indemnification is not exclusive to other indemnification rights those persons may have. In addition, our board
    of directors, in its discretion, shall have the power to indemnify any person other than a director made party to any action, suit or proceeding by reason of the fact that he, his testator or intestate, is or was an officer or employee of ours.
Section 102(b)(7) of the General Corporation Law of the State of Delaware permits a corporation to eliminate, and our Certificate provides for the elimination of, the personal liability of its directors or its
    stockholders for monetary damages for a breach of fiduciary duty as a director, except where the director breached his or her duty of loyalty, failed to act in good faith, engaged in intentional misconduct or knowingly violated a law, authorized the
    payment of a dividend or approved a stock repurchase in violation of Delaware corporate law or obtained an improper personal benefit.
We have entered into indemnification agreements with our directors containing provisions that may require us, among other things, to indemnify them against liabilities that may arise by reason of their status or service
    as directors, officers, employees, agents or fiduciaries of the corporation other than liabilities arising from willful misconduct of a culpable nature, to advance their expense incurred as a result of any proceeding against them as to which they could
    be indemnified, and to obtain directors' and officers' liability insurance if maintained for other directors or officers. We also maintain directors' and officers' liability insurance.
Item 7.
Exemption from Registration Claimed.
Not Applicable.
Item 8.
Exhibits.
Exhibit
Number
Description
4.1
Amended and Restated Certificate of Incorporation of the Registrant, as amended (incorporated by reference to Exhibit 3.1 to our Form 10-Q filed with the SEC on August 8, 2008 (File No. 000-26427)).
4.2
Amended and Restated Bylaws of the Registrant (incorporated by reference to Exhibit 3(ii).1 to our Form 10-Q filed with the SEC on November 9, 2018 (File No. 000-26427)).
4.3
Specimen common stock certificate (incorporated herein by reference to Exhibit 4.2 to Amendment No. 4 to our Registration Statement on Form S-1, filed with the SEC on June 22, 1999 (File No. 333-77025)).
5.1
Opinion of Manatt, Phelps & Phillips, LLP
23.1
Consent of Ernst & Young LLP
23.2
Consent of Manatt, Phelps & Phillips, LLP (included in Exhibit 5.1)
24.1
Power of Attorney (included on the signature page of this Registration Statement)
99.1
Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).
99.2
2014 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).
99.3
2016 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).
99.4
2018 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex E of our Definitive Proxy Statement on Form 14A filed with the SEC on April 30, 2018) (File No. 000-26427)).
99.5
Form of Stock Option Agreement (incorporated by reference to Exhibit 4.4 to our Form S-8, filed with the SEC on July 28, 2010 (File No. 333-168360)).
99.6
Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.38 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).
99.7
Form of Non-CSOP Award Agreement to Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.39 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).
99.8
Form of CSOP Award Agreement to Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.40 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).
99.9
Form of Stamps.com Inc. February 26, 2018 Equity Inducement Award (incorporated by reference to Exhibit 10.7 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).
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:
(i) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933, as amended (the "Securities Act");
(ii) To reflect in the prospectus any facts or events arising after the effective date of the Registration Statement (or the most recent post-effective amendment thereof) which,
    individually or in the aggregate, represent a fundamental change in the information set forth in the Registration Statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of
    securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the SEC pursuant to Rule 424(b) if, in the
    aggregate, the changes in volume and price represent no greater than 20% change in the maximum aggregate offering price set forth in the "Calculation of Registration Fee" table in the effective registration statement;
(iii) 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;
provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) above do not apply if the Registration Statement is on Form S-8, and the information required to be included in a post-effective amendment by
    those paragraphs is contained in reports filed with or furnished to the SEC by the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"), that are incorporated by reference in the
    Registration Statement;
(2) That, for the purpose of determining any liability under the Securities Act, 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; and
(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) The undersigned registrant hereby undertakes that, for purposes of determining any liability under the Securities Act, each filing of the registrant's annual report pursuant to Section 13(a) or
    15(d) of the Exchange Act (and, where applicable, each filing of an employee benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) 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 may be permitted to the directors, officers, and controlling persons of the registrant pursuant to the foregoing
    provisions, or otherwise, the registrant has been advised that in the opinion of the SEC such indemnification is against public policy as expressed in the Securities Act 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 and will be governed by final adjudication of such issue.
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 Los Angeles, State of California on September 27, 2019.
STAMPS.COM INC.
By:
/s/ Kenneth McBride
Kenneth McBride
Chief Executive Officer and Chairman of
the Board of Directors
KNOW ALL MEN BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints Kenneth McBride and Jeffrey Carberry, and each of them, his true and lawful attorney-in-fact and
    agent, with full power of substitution and resubstitution, for him and in his name, place and stead, in any and all capacities, to sign any or all amendments to this Registration Statement, and to file the same with all exhibits thereto, and all other
    documents in connection therewith, with the Securities and Exchange Commission, granting unto said attorney-in-fact and agent full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the
    premises, as fully to all intents and purposes as he might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agent, or his substitute, may lawfully 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/ Kenneth McBride
Chairman and Chief Executive Officer
(Principal Executive Officer)
September 26, 2019
Kenneth McBride
/s/ Jeffrey Carberry
Chief Financial Officer
(Principal Financial and Accounting Officer)
September 26, 2019
Jeffrey Carberry
/s/ Mohan P. Ananda
Director
September 26, 2019
Mohan P. Ananda
/s/ David Habiger
Director
September 26, 2019
David Habiger
/s/ G. Bradford Jones
Director
September 27, 2019
G. Bradford Jones
/s/ Kate Ann May
Director
September 27, 2019
Kate Ann May
/s/ Theodore R. Samuels
Director
September 26, 2019
Theodore R. Samuels
Exhibit Index
Exhibit Number
Description
4.1
Amended and Restated Certificate of Incorporation of the Registrant, as amended (incorporated by reference to Exhibit 3.1 to our Form 10-Q filed with the SEC on August 8, 2008 (File No. 000-26427)).
4.2
Amended and Restated Bylaws of the Registrant (incorporated by reference to Exhibit 3(ii).1 to our Form 10-Q filed with the SEC on November 9, 2018 (File No. 000-26427)).
4.3
Specimen common stock certificate (incorporated herein by reference to Exhibit 4.2 to Amendment No. 4 to our Registration Statement on Form S-1, filed with the SEC on June 22, 1999 (File No. 333-77025)).
5.1
Opinion of Manatt, Phelps & Phillips, LLP
23.1
Consent of Ernst & Young LLP
23.2
Consent of Manatt, Phelps & Phillips, LLP (included in Exhibit 5.1)
24.1
Power of Attorney (included on the signature page of this Registration Statement)
99.1
Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form  14A filed with the SEC on April 30, 2018) (File No. 000-26427)).
99.2
2014 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form  14A filed with the SEC on April 30, 2018) (File No. 000-26427)).
99.3
2016 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex D of our Definitive Proxy Statement on Form  14A filed with the SEC on April 30, 2018) (File No. 000-26427)).
99.4
2018 Amendment to the Stamps.com Inc. 2010 Equity Incentive Plan (incorporated by reference to Annex E of our Definitive Proxy Statement on Form  14A filed with the SEC on April 30, 2018) (File No. 000-26427)).
99.5
Form of Stock Option Agreement (incorporated by reference to Exhibit 4.4 to our Form S-8, filed with the SEC on July 28, 2010 (File No. 333-168360)).
99.6
Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.38 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).
99.7
Form of Non-CSOP Award Agreement to Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.39 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).
99.8
Form of CSOP Award Agreement to Stamps.com Inc. 2018 MetaPack Equity Inducement Plan (incorporated by reference to Exhibit 10.40 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).
99.9
Form of Stamps.com Inc. February 26, 2018 Equity Inducement Award (incorporated by reference to Exhibit 10.7 to our Form 10-K, filed with the SEC on March 1, 2019 (File No. 000-26427)).