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<title>SEC FORM 
            4</title>
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<body>SEC Form 4 
   <table width="100%" border="0" cellspacing="0" cellpadding="4">
<tr>
<td width="20%" colspan="2" valign="top" align="center" class="FormName">FORM 4</td>
<td rowspan="2" width="60%" valign="middle" align="center">
<span class="FormTitle">UNITED STATES SECURITIES AND EXCHANGE COMMISSION</span><br><span class="MedSmallFormText">Washington, D.C. 20549</span><br><br><span class="FormTitle">STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP</span><br><br><span class="MedSmallFormText">Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934</span><br><span class="MedSmallFormText">or Section 30(h) of the Investment Company Act of 1940</span>
</td>
<td rowspan="2" width="20%" valign="top" align="center"><table width="100%" border="1" summary="OMB Approval Status Box">
<tr><td class="FormTextC">OMB APPROVAL</td></tr>
<tr><td><table width="100%" border="0" summary="OMB Interior Box">
<tr>
<td class="SmallFormText" colspan="3">OMB Number:</td>
<td class="SmallFormTextR">3235-0287</td>
</tr>
<tr><td class="SmallFormText" colspan="4">Estimated average burden</td></tr>
<tr>
<td class="SmallFormText" colspan="3">hours per response:</td>
<td class="SmallFormTextR">0.5</td>
</tr>
</table></td></tr>
</table></td>
</tr>
<tr valign="middle">
<td><table width="100%" border="1" cellpadding="0" cellspacing="0"><tr><td>  </td></tr></table></td>
<td class="SmallFormText">Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. 
         <i>See</i>

         Instruction 1(b).</td>
</tr>
</table>
<table width="100%" border="1" cellspacing="0" cellpadding="4">
<tr>
<td rowspan="3" width="35%" valign="top">
<span class="MedSmallFormText">1. Name and Address of Reporting Person<sup>*</sup></span><table border="0" width="100%"><tr><td><a href="/cgi-bin/browse-edgar?action=getcompany&amp;CIK=0001763854">Eclipse GP III, LLC</a></td></tr></table>
<hr width="98%">
<table border="0" width="100%"><tr>
<td width="33%" class="MedSmallFormText">(Last)</td>
<td width="33%" class="MedSmallFormText">(First)</td>
<td width="33%" class="MedSmallFormText">(Middle)</td>
</tr></table>
<table border="0" width="100%">
<tr><td><span class="FormData">514 HIGH STREET</span></td></tr>
<tr><td><span class="FormData">SUITE 4</span></td></tr>
</table>
<hr width="98%">
<span class="MedSmallFormText">(Street)</span><table border="0" width="100%"><tr>
<td width="33%"><span class="FormData">PALO ALTO</span></td>
<td width="33%"><span class="FormData">CA</span></td>
<td width="33%"><span class="FormData">94301</span></td>
</tr></table>
<hr width="98%">
<table border="0" width="100%"><tr>
<td width="33%" class="MedSmallFormText">(City)</td>
<td width="33%" class="MedSmallFormText">(State)</td>
<td width="33%" class="MedSmallFormText">(Zip)</td>
</tr></table>
</td>
<td width="35%" valign="top">
<span class="MedSmallFormText">2. Issuer Name <b>and</b> Ticker or Trading Symbol
      </span><br><a href="/cgi-bin/browse-edgar?action=getcompany&amp;CIK=0001652724">Lucira Health, Inc.</a>
     [ <span class="FormData">LHDX</span> ]
   </td>
<td rowspan="2" valign="top">
<span class="MedSmallFormText">5. Relationship of Reporting Person(s) to Issuer
      </span><br><span class="MedSmallFormText">(Check all applicable)</span><table border="0" width="100%">
<tr>
<td width="15%" align="center"></td>
<td width="35%" class="MedSmallFormText">Director</td>
<td width="15%" align="center"><span class="FormData">X</span></td>
<td width="35%" class="MedSmallFormText">10% Owner</td>
</tr>
<tr>
<td align="center"></td>
<td class="MedSmallFormText">Officer (give title below)</td>
<td align="center"></td>
<td class="MedSmallFormText">Other (specify below)</td>
</tr>
<tr>
<td width="15%" align="center"></td>
<td width="35%" align="left" style="color: blue"></td>
<td width="15%" align="center"></td>
<td width="35%" align="left" style="color: blue"></td>
</tr>
</table>
</td>
</tr>
<tr><td valign="top">
<span class="MedSmallFormText">3. Date of Earliest Transaction
         (Month/Day/Year)</span><br><span class="FormData">02/09/2021</span>
</td></tr>
<tr>
<td valign="top">
<span class="MedSmallFormText">4. If Amendment, Date of Original Filed
         (Month/Day/Year)</span><br>
</td>
<td valign="top">
<span class="MedSmallFormText">6. Individual or Joint/Group Filing (Check Applicable Line)
      </span><table border="0" width="100%">
<tr>
<td width="15%" align="center"></td>
<td width="85%" class="MedSmallFormText">Form filed by One Reporting Person</td>
</tr>
<tr>
<td width="15%" align="center"><span class="FormData">X</span></td>
<td width="85%" class="MedSmallFormText">Form filed by More than One Reporting Person</td>
</tr>
</table>
</td>
</tr>
</table>
<table width="100%" border="1" cellspacing="0" cellpadding="4">
<thead>
<tr><th width="100%" valign="top" colspan="11" align="center" class="FormTextC"><b>Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned</b></th></tr>
<tr>
<th width="36%" valign="top" rowspan="2" align="left" class="MedSmallFormText">1. Title of Security (Instr. 
      3)
   </th>
<th width="6%" valign="top" rowspan="2" align="left" class="SmallFormText">2. Transaction Date
      (Month/Day/Year)</th>
<th width="5%" valign="top" rowspan="2" align="left" class="SmallFormText">2A. Deemed Execution Date, if any
      (Month/Day/Year)</th>
<th width="7%" valign="top" colspan="2" align="left" class="SmallFormText">3. Transaction Code (Instr. 
      8)
   </th>
<th width="19%" valign="top" colspan="3" align="left" class="SmallFormText">4. Securities Acquired (A) or Disposed Of (D) (Instr. 
      3, 4 and 5)
   </th>
<th width="11%" valign="top" rowspan="2" align="left" class="SmallFormText">5. 
      Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 
      3 and 4)
   </th>
<th width="9%" valign="top" rowspan="2" align="left" class="SmallFormText">6. Ownership Form: Direct (D) or Indirect (I) (Instr. 
      4)
   </th>
<th width="8%" valign="top" rowspan="2" align="left" class="SmallFormText">7. Nature of Indirect Beneficial Ownership (Instr. 
      4)
   </th>
</tr>
<tr>
<th width="4%" align="center" class="SmallFormText">Code</th>
<th width="3%" align="center" class="SmallFormText">V</th>
<th width="8%" align="center" class="SmallFormText">Amount</th>
<th width="5%" align="center" class="SmallFormText">(A) or (D)</th>
<th width="6%" align="center" class="SmallFormText">Price</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left"><span class="FormData">Common Stock</span></td>
<td align="center"><span class="FormData">02/09/2021</span></td>
<td align="center"><span class="FormData"></span></td>
<td align="center"><span class="SmallFormData">C</span></td>
<td align="center"></td>
<td align="center"><span class="FormData">976,852</span></td>
<td align="center"><span class="FormData">A</span></td>
<td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td>
<td align="center"><span class="FormData">976,852</span></td>
<td align="center"><span class="FormData">I</span></td>
<td align="left">
<span class="FormData">See footnote</span><span class="FootnoteData"><sup>(2)</sup></span>
</td>
</tr>
<tr>
<td align="left"><span class="FormData">Common Stock</span></td>
<td align="center"><span class="FormData">02/09/2021</span></td>
<td align="center"><span class="FormData"></span></td>
<td align="center"><span class="SmallFormData">C</span></td>
<td align="center"></td>
<td align="center"><span class="FormData">877,445</span></td>
<td align="center"><span class="FormData">A</span></td>
<td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td>
<td align="center"><span class="FormData">1,854,297</span></td>
<td align="center"><span class="FormData">I</span></td>
<td align="left">
<span class="FormData">See footnote</span><span class="FootnoteData"><sup>(2)</sup></span>
</td>
</tr>
<tr>
<td align="left"><span class="FormData">Common Stock</span></td>
<td align="center"><span class="FormData">02/09/2021</span></td>
<td align="center"><span class="FormData"></span></td>
<td align="center"><span class="SmallFormData">C</span></td>
<td align="center"></td>
<td align="center"><span class="FormData">185,512</span></td>
<td align="center"><span class="FormData">A</span></td>
<td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td>
<td align="center"><span class="FormData">2,039,809</span></td>
<td align="center"><span class="FormData">I</span></td>
<td align="left">
<span class="FormData">See footnote</span><span class="FootnoteData"><sup>(2)</sup></span>
</td>
</tr>
<tr>
<td align="left"><span class="FormData">Common Stock</span></td>
<td align="center"><span class="FormData">02/09/2021</span></td>
<td align="center"><span class="FormData"></span></td>
<td align="center"><span class="SmallFormData">C</span></td>
<td align="center"></td>
<td align="center"><span class="FormData">3,710,257</span></td>
<td align="center"><span class="FormData">A</span></td>
<td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td>
<td align="center"><span class="FormData">3,710,257</span></td>
<td align="center">
<span class="FormData">D</span><span class="FootnoteData"><sup>(3)</sup></span>
</td>
<td align="left"></td>
</tr>
<tr>
<td align="left"><span class="FormData">Common Stock</span></td>
<td align="center"><span class="FormData">02/09/2021</span></td>
<td align="center"><span class="FormData"></span></td>
<td align="center"><span class="SmallFormData">C</span></td>
<td align="center"></td>
<td align="center"><span class="FormData">473,729</span></td>
<td align="center"><span class="FormData">A</span></td>
<td align="center">
<span class="FormText">$</span><span class="FormData">13.6</span>
</td>
<td align="center"><span class="FormData">4,183,986</span></td>
<td align="center">
<span class="FormData">D</span><span class="FootnoteData"><sup>(3)</sup></span>
</td>
<td align="left"></td>
</tr>
</tbody>
</table>
<table width="100%" border="1" cellspacing="0" cellpadding="4">
<thead>
<tr><th width="100%" valign="top" colspan="16" align="center" class="FormTextC">
<b>Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned</b><br><b>(e.g., puts, calls, warrants, options, convertible securities)</b>
</th></tr>
<tr>
<th width="13%" valign="top" rowspan="2" align="left" class="SmallFormText">1. Title of Derivative Security (Instr. 
      3)
   </th>
<th width="5%" valign="top" rowspan="2" align="left" class="SmallFormText">2. Conversion or Exercise Price of Derivative Security
   </th>
<th width="5%" valign="top" rowspan="2" align="left" class="SmallFormText">3. Transaction Date
      (Month/Day/Year)</th>
<th width="5%" valign="top" rowspan="2" align="left" class="SmallFormText">3A. Deemed Execution Date, if any
      (Month/Day/Year)</th>
<th width="9%" valign="top" colspan="2" align="left" class="SmallFormText">4. Transaction Code (Instr. 
      8)
   </th>
<th width="10%" valign="top" colspan="2" align="left" class="SmallFormText">5. 
      Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 
      3, 4 and 5)
   </th>
<th width="9%" valign="top" colspan="2" align="left" class="SmallFormText">6. Date Exercisable and Expiration Date 
      (Month/Day/Year)</th>
<th width="17%" valign="top" colspan="2" align="left" class="SmallFormText">7. Title and Amount of Securities Underlying Derivative Security (Instr. 
      3 and 4)
   </th>
<th width="6%" valign="top" rowspan="2" align="left" class="SmallFormText">8. Price of Derivative Security (Instr. 
      5)
   </th>
<th width="6%" valign="top" rowspan="2" align="left" class="SmallFormText">9. 
      Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 
      4)
   </th>
<th width="6%" valign="top" rowspan="2" align="left" class="SmallFormText">10. Ownership Form: Direct (D) or Indirect (I) (Instr. 
      4)
   </th>
<th width="7%" valign="top" rowspan="2" align="left" class="SmallFormText">11. Nature of Indirect Beneficial Ownership (Instr. 
      4)
   </th>
</tr>
<tr>
<th width="4%" valign="bottom" align="center" class="SmallFormText">Code</th>
<th width="4%" valign="bottom" align="center" class="SmallFormText">V</th>
<th width="5%" valign="bottom" align="center" class="SmallFormText">(A)</th>
<th width="5%" valign="bottom" align="center" class="SmallFormText">(D)</th>
<th width="5%" valign="bottom" align="center" class="SmallFormText">Date Exercisable</th>
<th width="4%" valign="bottom" align="center" class="SmallFormText">Expiration Date</th>
<th width="10%" valign="bottom" align="center" class="SmallFormText">Title</th>
<th width="7%" valign="bottom" align="center" class="SmallFormText">Amount or Number of Shares</th>
</tr>
</thead>
<tbody>
<tr>
<td align="left"><span class="SmallFormData">Series A Preferred Stock</span></td>
<td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td>
<td align="center"><span class="SmallFormData">02/09/2021</span></td>
<td align="center"><span class="SmallFormData"></span></td>
<td align="center"><span class="SmallFormData">C</span></td>
<td align="center"></td>
<td align="center"></td>
<td align="center"><span class="SmallFormData">976,852</span></td>
<td align="center">
<span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span>
</td>
<td align="center">
<span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span>
</td>
<td align="center"><span class="SmallFormData">Common Stock</span></td>
<td align="center"><span class="FormData">976,852</span></td>
<td align="center">
<span class="SmallFormText">$</span><span class="SmallFormData">0.00</span>
</td>
<td align="center"><span class="SmallFormData">0</span></td>
<td align="center"><span class="SmallFormData">I</span></td>
<td align="left">
<span class="SmallFormData">See footnote</span><span class="FootnoteData"><sup>(2)</sup></span>
</td>
</tr>
<tr>
<td align="left"><span class="SmallFormData">Series B Preferred Stock</span></td>
<td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td>
<td align="center"><span class="SmallFormData">02/09/2021</span></td>
<td align="center"><span class="SmallFormData"></span></td>
<td align="center"><span class="SmallFormData">C</span></td>
<td align="center"></td>
<td align="center"></td>
<td align="center"><span class="SmallFormData">877,445</span></td>
<td align="center">
<span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span>
</td>
<td align="center">
<span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span>
</td>
<td align="center"><span class="SmallFormData">Common Stock</span></td>
<td align="center"><span class="FormData">877,445</span></td>
<td align="center">
<span class="SmallFormText">$</span><span class="SmallFormData">0.00</span>
</td>
<td align="center"><span class="SmallFormData">0</span></td>
<td align="center"><span class="SmallFormData">I</span></td>
<td align="left">
<span class="SmallFormData">See footnote</span><span class="FootnoteData"><sup>(2)</sup></span>
</td>
</tr>
<tr>
<td align="left"><span class="SmallFormData">Series C Preferred Stock</span></td>
<td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td>
<td align="center"><span class="SmallFormData">02/09/2021</span></td>
<td align="center"><span class="SmallFormData"></span></td>
<td align="center"><span class="SmallFormData">C</span></td>
<td align="center"></td>
<td align="center"></td>
<td align="center"><span class="SmallFormData">185,512</span></td>
<td align="center">
<span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span>
</td>
<td align="center">
<span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span>
</td>
<td align="center"><span class="SmallFormData">Common Stock</span></td>
<td align="center"><span class="FormData">185,512</span></td>
<td align="center">
<span class="SmallFormText">$</span><span class="SmallFormData">0.00</span>
</td>
<td align="center"><span class="SmallFormData">0</span></td>
<td align="center"><span class="SmallFormData">I</span></td>
<td align="left">
<span class="SmallFormData">See footnote</span><span class="FootnoteData"><sup>(2)</sup></span>
</td>
</tr>
<tr>
<td align="left"><span class="SmallFormData">Series C Preferred Stock</span></td>
<td align="center"><span class="FootnoteData"><sup>(1)</sup></span></td>
<td align="center"><span class="SmallFormData">02/09/2021</span></td>
<td align="center"><span class="SmallFormData"></span></td>
<td align="center"><span class="SmallFormData">C</span></td>
<td align="center"></td>
<td align="center"></td>
<td align="center"><span class="SmallFormData">3,710,257</span></td>
<td align="center">
<span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span>
</td>
<td align="center">
<span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(1)</sup></span>
</td>
<td align="center"><span class="SmallFormData">Common Stock</span></td>
<td align="center"><span class="FormData">3,710,257</span></td>
<td align="center">
<span class="SmallFormText">$</span><span class="SmallFormData">0.00</span>
</td>
<td align="center"><span class="SmallFormData">0</span></td>
<td align="center">
<span class="SmallFormData">D</span><span class="FootnoteData"><sup>(3)</sup></span>
</td>
<td align="left"></td>
</tr>
<tr>
<td align="left"><span class="SmallFormData">Convertible Promissory Note</span></td>
<td align="center">
<span class="SmallFormText">$</span><span class="SmallFormData">13.6</span>
</td>
<td align="center"><span class="SmallFormData">02/09/2021</span></td>
<td align="center"><span class="SmallFormData"></span></td>
<td align="center"><span class="SmallFormData">C</span></td>
<td align="center"></td>
<td align="center"></td>
<td align="center">
<span class="SmallFormText">$</span><span class="SmallFormData">6,442,717.58</span>
</td>
<td align="center">
<span class="SmallFormData">
                
            </span><span class="FootnoteData"><sup>(4)</sup></span>
</td>
<td align="center"><span class="SmallFormData">12/11/2022</span></td>
<td align="center"><span class="SmallFormData">Common Stock</span></td>
<td align="center"><span class="FormData">473,729</span></td>
<td align="center">
<span class="SmallFormText">$</span><span class="SmallFormData">0.00</span>
</td>
<td align="center"><span class="SmallFormData">0</span></td>
<td align="center">
<span class="SmallFormData">D</span><span class="FootnoteData"><sup>(3)</sup></span>
</td>
<td align="left"></td>
</tr>
</tbody>
</table>
<table width="40%" border="1" cellspacing="0" cellpadding="4">
<tr><td valign="top">
<span class="MedSmallFormText">1. Name and Address of Reporting Person<sup>*</sup></span><table border="0" width="100%"><tr><td><a href="/cgi-bin/browse-edgar?action=getcompany&amp;CIK=0001763854">Eclipse GP III, LLC</a></td></tr></table>
<hr width="98%">
<table border="0" width="100%"><tr>
<td width="33%" class="MedSmallFormText">(Last)</td>
<td width="33%" class="MedSmallFormText">(First)</td>
<td width="33%" class="MedSmallFormText">(Middle)</td>
</tr></table>
<table border="0" width="100%">
<tr><td><span class="FormData">514 HIGH STREET</span></td></tr>
<tr><td><span class="FormData">SUITE 4</span></td></tr>
</table>
<hr width="98%">
<span class="MedSmallFormText">(Street)</span><table border="0" width="100%"><tr>
<td width="33%"><span class="FormData">PALO ALTO</span></td>
<td width="33%"><span class="FormData">CA</span></td>
<td width="33%"><span class="FormData">94301</span></td>
</tr></table>
<hr width="98%">
<table border="0" width="100%"><tr>
<td width="33%" class="MedSmallFormText">(City)</td>
<td width="33%" class="MedSmallFormText">(State)</td>
<td width="33%" class="MedSmallFormText">(Zip)</td>
</tr></table>
<hr width="98%">
<span class="MedSmallFormText">
          Relationship of Reporting Person(s) to Issuer
      </span><hr width="98%">
<table border="0" width="100%">
<tr>
<td width="15%" align="center"></td>
<td width="35%" class="MedSmallFormText">Director</td>
<td width="15%" align="center"><span class="FormData">X</span></td>
<td width="35%" class="MedSmallFormText">10% Owner</td>
</tr>
<tr>
<td align="center"></td>
<td class="MedSmallFormText">Officer (give title below)</td>
<td align="center"></td>
<td class="MedSmallFormText">Other (specify below)</td>
</tr>
<tr>
<td width="15%" align="center"></td>
<td width="35%" align="left" style="color: blue"></td>
<td width="15%" align="center"></td>
<td width="35%" align="left" style="color: blue"></td>
</tr>
</table>
</td></tr>
<tr><td valign="top">
<span class="MedSmallFormText">1. Name and Address of Reporting Person<sup>*</sup></span><table border="0" width="100%"><tr><td><a href="/cgi-bin/browse-edgar?action=getcompany&amp;CIK=0001763853">Eclipse Fund III, L.P.</a></td></tr></table>
<hr width="98%">
<table border="0" width="100%"><tr>
<td width="33%" class="MedSmallFormText">(Last)</td>
<td width="33%" class="MedSmallFormText">(First)</td>
<td width="33%" class="MedSmallFormText">(Middle)</td>
</tr></table>
<table border="0" width="100%">
<tr><td><span class="FormData">514 HIGH STREET</span></td></tr>
<tr><td><span class="FormData">SUITE 4</span></td></tr>
</table>
<hr width="98%">
<span class="MedSmallFormText">(Street)</span><table border="0" width="100%"><tr>
<td width="33%"><span class="FormData">PALO ALTO</span></td>
<td width="33%"><span class="FormData">CA</span></td>
<td width="33%"><span class="FormData">94301</span></td>
</tr></table>
<hr width="98%">
<table border="0" width="100%"><tr>
<td width="33%" class="MedSmallFormText">(City)</td>
<td width="33%" class="MedSmallFormText">(State)</td>
<td width="33%" class="MedSmallFormText">(Zip)</td>
</tr></table>
<hr width="98%">
<span class="MedSmallFormText">
          Relationship of Reporting Person(s) to Issuer
      </span><hr width="98%">
<table border="0" width="100%">
<tr>
<td width="15%" align="center"></td>
<td width="35%" class="MedSmallFormText">Director</td>
<td width="15%" align="center"><span class="FormData">X</span></td>
<td width="35%" class="MedSmallFormText">10% Owner</td>
</tr>
<tr>
<td align="center"></td>
<td class="MedSmallFormText">Officer (give title below)</td>
<td align="center"></td>
<td class="MedSmallFormText">Other (specify below)</td>
</tr>
<tr>
<td width="15%" align="center"></td>
<td width="35%" align="left" style="color: blue"></td>
<td width="15%" align="center"></td>
<td width="35%" align="left" style="color: blue"></td>
</tr>
</table>
</td></tr>
<tr><td valign="top">
<span class="MedSmallFormText">1. Name and Address of Reporting Person<sup>*</sup></span><table border="0" width="100%"><tr><td><a href="/cgi-bin/browse-edgar?action=getcompany&amp;CIK=0001641394">Eclipse Ventures Fund I, L.P.</a></td></tr></table>
<hr width="98%">
<table border="0" width="100%"><tr>
<td width="33%" class="MedSmallFormText">(Last)</td>
<td width="33%" class="MedSmallFormText">(First)</td>
<td width="33%" class="MedSmallFormText">(Middle)</td>
</tr></table>
<table border="0" width="100%">
<tr><td><span class="FormData">514 HIGH STREET</span></td></tr>
<tr><td><span class="FormData">SUITE 4</span></td></tr>
</table>
<hr width="98%">
<span class="MedSmallFormText">(Street)</span><table border="0" width="100%"><tr>
<td width="33%"><span class="FormData">PALO ALTO</span></td>
<td width="33%"><span class="FormData">CA</span></td>
<td width="33%"><span class="FormData">94301</span></td>
</tr></table>
<hr width="98%">
<table border="0" width="100%"><tr>
<td width="33%" class="MedSmallFormText">(City)</td>
<td width="33%" class="MedSmallFormText">(State)</td>
<td width="33%" class="MedSmallFormText">(Zip)</td>
</tr></table>
<hr width="98%">
<span class="MedSmallFormText">
          Relationship of Reporting Person(s) to Issuer
      </span><hr width="98%">
<table border="0" width="100%">
<tr>
<td width="15%" align="center"></td>
<td width="35%" class="MedSmallFormText">Director</td>
<td width="15%" align="center"><span class="FormData">X</span></td>
<td width="35%" class="MedSmallFormText">10% Owner</td>
</tr>
<tr>
<td align="center"></td>
<td class="MedSmallFormText">Officer (give title below)</td>
<td align="center"></td>
<td class="MedSmallFormText">Other (specify below)</td>
</tr>
<tr>
<td width="15%" align="center"></td>
<td width="35%" align="left" style="color: blue"></td>
<td width="15%" align="center"></td>
<td width="35%" align="left" style="color: blue"></td>
</tr>
</table>
</td></tr>
<tr><td valign="top">
<span class="MedSmallFormText">1. Name and Address of Reporting Person<sup>*</sup></span><table border="0" width="100%"><tr><td><a href="/cgi-bin/browse-edgar?action=getcompany&amp;CIK=0001843678">Eclipse Ventures GP I, LLC</a></td></tr></table>
<hr width="98%">
<table border="0" width="100%"><tr>
<td width="33%" class="MedSmallFormText">(Last)</td>
<td width="33%" class="MedSmallFormText">(First)</td>
<td width="33%" class="MedSmallFormText">(Middle)</td>
</tr></table>
<table border="0" width="100%">
<tr><td><span class="FormData">514 HIGH STREET</span></td></tr>
<tr><td><span class="FormData">SUITE 4</span></td></tr>
</table>
<hr width="98%">
<span class="MedSmallFormText">(Street)</span><table border="0" width="100%"><tr>
<td width="33%"><span class="FormData">PALO ALTO</span></td>
<td width="33%"><span class="FormData">CA</span></td>
<td width="33%"><span class="FormData">94301</span></td>
</tr></table>
<hr width="98%">
<table border="0" width="100%"><tr>
<td width="33%" class="MedSmallFormText">(City)</td>
<td width="33%" class="MedSmallFormText">(State)</td>
<td width="33%" class="MedSmallFormText">(Zip)</td>
</tr></table>
<hr width="98%">
<span class="MedSmallFormText">
          Relationship of Reporting Person(s) to Issuer
      </span><hr width="98%">
<table border="0" width="100%">
<tr>
<td width="15%" align="center"></td>
<td width="35%" class="MedSmallFormText">Director</td>
<td width="15%" align="center"><span class="FormData">X</span></td>
<td width="35%" class="MedSmallFormText">10% Owner</td>
</tr>
<tr>
<td align="center"></td>
<td class="MedSmallFormText">Officer (give title below)</td>
<td align="center"></td>
<td class="MedSmallFormText">Other (specify below)</td>
</tr>
<tr>
<td width="15%" align="center"></td>
<td width="35%" align="left" style="color: blue"></td>
<td width="15%" align="center"></td>
<td width="35%" align="left" style="color: blue"></td>
</tr>
</table>
</td></tr>
</table>
<table border="0" width="100%">
<tr><td class="MedSmallFormText"><b>Explanation of Responses:</b></td></tr>
<tr><td class="FootnoteData">1. Each share of Series A Preferred, Series B Preferred Stock and Series C Preferred Stock (the "Preferred Stock") automatically converted on a
one-for-one basis into Common Stock at the closing of the Issuer's initial public offering, for no additional consideration. The shares of Preferred
Stock had no expiration date.</td></tr>
<tr><td class="FootnoteData">2. The securities are held directly by Eclipse Ventures Fund I, L.P. ("Eclipse I"). Eclipse Ventures GP I, LLC ("Eclipse I GP") is the general partner of Eclipse I and may be deemed to have voting and dispositive power over the shares held by Eclipse I. Mr. Susan, a member of the Issuer's board of directors, is the sole managing member of Eclipse I GP and may be deemed to have voting and dispositive power over the shares held by Eclipse I. Eclipse I GP and Mr. Susan disclaim beneficial ownership of the shares held by Eclipse I except to the extent of their respective pecuniary interests therein, if any.</td></tr>
<tr><td class="FootnoteData">3. The securities are held directly by Eclipse Fund III, L.P. ("Eclipse III"). Eclipse GP III, LLC ("Eclipse III GP") is the general partner of Eclipse III and may be deemed to have voting and dispositive power over the shares held by Eclipse III. Mr. Susan, a member of the Issuer's board of directors, is the sole managing member of Eclipse III GP and may be deemed to have voting and dispositive power over the shares held by Eclipse III. Eclipse III GP and Mr. Susan disclaim beneficial ownership of the shares held by Eclipse III except to the extent of their respective pecuniary interests therein, if any.</td></tr>
<tr><td class="FootnoteData">4. The convertible promissory note automatically converted into shares of the Issuer's Common Stock at the closing of the IPO.</td></tr>
<tr><td class="FormText"><b>Remarks:</b></td></tr>
<tr><td class="FootnoteData"></td></tr>
</table>
<table width="100%" border="0">
<tr>
<td width="60%"></td>
<td width="20%"><u><span class="FormData">Eclipse GP III, LLC /s/ Lior Susan, Managing Member</span></u></td>
<td width="20%"><u><span class="FormData">02/09/2021</span></u></td>
</tr>
<tr>
<td width="60%"></td>
<td width="20%"><u><span class="FormData">Eclipse Fund III, L.P., By: Eclipse GP III, LC, its General Partner, /s/ Lior Susan, Managing Member</span></u></td>
<td width="20%"><u><span class="FormData">02/09/2021</span></u></td>
</tr>
<tr>
<td width="60%"></td>
<td width="20%"><u><span class="FormData">Eclipse Ventures Fund I, L.P., By: Eclipse Ventures GP I, LLC, its General Partner /s/ Lior Susan, Managing Member</span></u></td>
<td width="20%"><u><span class="FormData">02/09/2021</span></u></td>
</tr>
<tr>
<td width="60%"></td>
<td width="20%"><u><span class="FormData">Eclipse Ventures GP I, LLC /s/ Lior Susan, Managing Member</span></u></td>
<td width="20%"><u><span class="FormData">02/09/2021</span></u></td>
</tr>
<tr>
<td></td>
<td class="MedSmallFormText">** Signature of Reporting Person</td>
<td class="MedSmallFormText">Date</td>
</tr>
<tr><td colspan="3" class="MedSmallFormText">Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.</td></tr>
<tr><td colspan="3" class="MedSmallFormText">* If the form is filed by more than one reporting person, 
                  <i>see</i>

                  Instruction 
                  4

                  (b)(v).</td></tr>
<tr><td colspan="3" class="MedSmallFormText">** Intentional misstatements or omissions of facts constitute Federal Criminal Violations 
                  <i>See</i>

                  18 U.S.C. 1001 and 15 U.S.C. 78ff(a).</td></tr>
<tr><td colspan="3" class="MedSmallFormText">Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, 
                  <i>see</i>

                  Instruction 6 for procedure.</td></tr>
<tr><td colspan="3" class="MedSmallFormText"><b>Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.</b></td></tr>
</table>
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