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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">As filed with the Securities and Exchange Commission on March 21, 2022 </p>
<p style="text-align:right;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Registration No. 333- </p>
<p style="text-align:center;margin-top:4pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:18pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">UNITED STATES </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:18pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">SECURITIES AND EXCHANGE COMMISSION </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:12pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Washington, D.C. 20549 </p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:18pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">FORM S-8 </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:18pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">REGISTRATION STATEMENT </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-style:italic;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">UNDER </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-style:italic;font-size:12pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">THE SECURITIES ACT OF 1933 </p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:24pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Caribou Biosciences, Inc. </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(Exact name of Registrant as specified in its charter) </p>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:8pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:8pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:8pt;">&nbsp;</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Delaware</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">45-3728228</p></td>
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<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(State or other jurisdiction of</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">incorporation or organization)</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:8pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(I.R.S. Employer</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Identification Number)</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
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<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">2929 7th Street, Suite 105<br />Berkeley, CA</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">94710</p></td>
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<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(Address of Principal Executive Offices)</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:8pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(Zip Code)</p></td>
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<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Caribou Biosciences, Inc. 2021 Equity Incentive Plan </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Caribou Biosciences, Inc. 2021 Employee Stock Purchase Plan </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(Full Title of the Plan) </p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Rachel E. Haurwitz, Ph.D. </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">President and Chief Executive Officer </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Caribou Biosciences, Inc. </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">2929 7th Street, Suite 105 </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Berkeley, California 94710 </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(510) 982-6030 </p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">(Name, address, including zip code, and telephone number, including area code, of agent for service) </p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-style:italic;font-size:10pt;font-family:Times New Roman;text-transform:none;font-variant: normal;">Copies to: </p>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:32%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:1%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:32%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Ashok W. Mukhey, Esq.</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Wendy A. Grasso, Esq.</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Reed Smith LLP</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">1901 Avenue of the Stars, Suite 700</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Los Angeles, California 90067</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Telephone: (310) 734-5200</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Barbara G. McClung, Esq.</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Caribou Biosciences, Inc.</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">2929 7<font style="font-size:8.5pt;">th</font> Street, Suite 105</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Berkeley, California 94710</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Telephone: (510) 982-6030</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Jeffrey G. Aromatorio, Esq.</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Reed Smith LLP</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">225 Fifth Avenue</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Pittsburgh, Pennsylvania 15222</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Telephone: (412) 288-3364</p></td>
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<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of &#8220;large accelerated filer,&#8221; &#8220;accelerated filer,&#8221; &#8220;smaller reporting company&#8221; and &#8220;emerging growth company&#8221; in Rule 12b-2 of the Exchange Act. </p>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Large accelerated filer</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#9744;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Accelerated filer</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#9744;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
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<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Non-accelerated filer</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#9746;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Smaller reporting company</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#9744;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Emerging growth company</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Segoe UI Symbol;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#9746;</p></td>
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<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. <font style="font-family:Segoe UI Symbol;">&#9744;</font> </p>
<p style="text-align:center;margin-bottom:12pt;margin-top:0pt;text-indent:0%;font-weight:bold;;font-size:10pt;">&nbsp;</p>
<hr style="page-break-after:always;width:100%;">
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="text-align:center;margin-bottom:12pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">EXPLANATORY NOTE</p>
<p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:7.69%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">This Registration Statement on Form S-8 is filed by Caribou Biosciences, Inc., a Delaware corporation (the &#8220;Registrant&#8221;), relating to 3,013,157 shares of its common stock, par value $0.0001 per share (the &#8220;Common Stock&#8221;), to be issued pursuant to the Registrant&#8217;s 2021 Equity Incentive Plan (&#8220;2021 EIP&#8221;) and 602,631 shares of Common Stock to be issued pursuant to the Registrant&#8217;s 2021 Employee Stock Purchase Plan (&#8220;2021 ESPP&#8221;), which Common Stock is in addition to the 6,134,526 shares of Common Stock already issuable under the 2021 EIP and the 511,000 shares of Common Stock already issuable under the 2021 ESPP as registered on the Registrant&#8217;s Form S-8 filed with the Securities and Exchange Commission (the &#8220;Commission&#8221;) on July 26, 2021 (File No. 333-258173) (the &#8220;Prior Registration Statement&#8221;). These additional shares of Common Stock have been reserved for issuance as a result of the operation of the &#8220;evergreen&#8221; provision in the Registrant&#8217;s 2021 EIP and 2021 ESPP, which provides that the total number of shares subject to such plan will be increased each year pursuant to a specified formula.</p>
<p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:7.69%;font-size:10pt;">&nbsp;</p>
<p style="text-align:justify;margin-bottom:12pt;margin-top:0pt;text-indent:7.69%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">This Registration Statement relates to securities of the same class as that to which the Prior Registration Statement relates, and it is submitted in accordance with General Instruction E to Form S-8 regarding Registration of Additional Securities. Pursuant to General Instruction E of Form S-8, the contents of the Prior Registration Statement are incorporated herein by reference and made part of this Registration Statement, except as amended hereby.</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">PART I </p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS </p>
<p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The information called for in Part I of Form S-8 is not being filed with or included in this Form S-8 (by incorporation by reference or otherwise) in accordance with the rules and regulations of the Securities and Exchange Commission (the &#8220;Commission&#8221;). </p>
<p style="text-align:center;margin-top:24pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">PART II </p>
<p style="text-align:center;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">INFORMATION REQUIRED IN THE REGISTRATION STATEMENT </p>
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-style:italic;font-size:10pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;">In this registration statement, Caribou Biosciences, Inc. is sometimes referred to as &#8220;Registrant,&#8221; &#8220;we,&#8221; &#8220;us,&#8221; or &#8220;our.&#8221; </p>
<p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Item 3. Incorporation of Documents by Reference. </p>
<p style="text-align:justify;margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The following documents previously filed by Caribou Biosciences, Inc. (the &#8220;Registrant&#8221;) with the Commission are incorporated by reference into this Registration Statement: </p>
<p style="text-align:justify;margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;">&nbsp;</p>
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<p style="margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:12pt;margin-top:0pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(a)</font></p></td>
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<p style="margin-bottom:12pt;margin-top:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;"><font style="font-size:3pt;"> </font>Registrant&#8217;s Annual Report on <a href="http://www.sec.gov/Archives/edgar/data/0001619856/000095017022004233/crbu-20211231.htm"><font style="text-decoration:underline;">Form 10-K</font></a><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> for the year ended December 31, 2021 filed with the Commission on March 21, 2022;</font></p></td></tr></table></div>
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<p style="margin-bottom:0pt;margin-top:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(b)</font></p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;font-family:Times New Roman;font-size:10pt;"><font style="color:#000000;">Registrant&#8217;s Current Report on </font><a href="http://www.sec.gov/Archives/edgar/data/1619856/000095017022000354/crbu-20220118.htm"><font style="text-decoration:underline;">Form&#160;8-K</font></a><font style="color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> filed with the Commission on </font>January 18, 2022<font style="color:#000000;"> and Current Report on </font><a href="http://www.sec.gov/Archives/edgar/data/1619856/000095017022000354/crbu-20220118.htm"><a href="http://www.sec.gov/Archives/edgar/data/1619856/000095017022000401/crbu-20220113.htm"><font style="text-decoration:underline;">Form 8-K</font></a><font style="color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> filed with the Commission on </font>January 19, 2022<font style="color:#000000;">; and</font></p></td></tr></table></div>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">&#160;</p>
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:15.45%;text-indent:-3.85%;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">(c)&nbsp;&nbsp; <font style="color:#000000;">The description of the Registrant&#8217;s Common Stock which is contained in a registration statement on </font><a href="http://www.sec.gov/Archives/edgar/data/1619856/000119312521218592/d128937d8a12b.htm"><font style="text-decoration:underline;color:#000000;">Form 8-A</font></a><font style="color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </font><font style="color:#000000;">filed on July 19, 2021 (File No. 001-40631) under the Exchange Act of 1934, as amended (the &#8220;Exchange Act&#8221;), as updated by the description of the Registrant&#8217;s capital stock contained in Exhibit 4.1 to the Registrant&#8217;s Annual Report on Form&#160;10-K,&#160;for the fiscal year ended December&#160;31, 2021, including any amendment or report filed for the purpose of updating such description.</font></p>
<p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">All documents that the Registrant subsequently files pursuant to Sections 13(a), 13(c), 14, and 15(d) of the Exchange Act prior to the filing of a post-effective amendment to this Registration Statement that indicates that all of the shares of Common Stock offered have been sold or that deregisters all of such shares then remaining unsold shall be deemed </p>
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<p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">to be incorporated by reference into this </font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">R</font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">egistration </font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">S</font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">tatement and to be a part hereof from the date of the filing of such documents; except as to any portion of any future annual or quarterly report to stockholders or document or current report furnished under current Items 2.02 or 7.01 of Form 8-K, and exhibits furnished on such form that relate to such items, that is not deemed filed under such provisions. For the purposes of this </font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">R</font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">egistration </font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">S</font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">tatement, any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded to the extent that a statement contained herein or in any other subsequently filed document </font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">that</font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> also is or 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 superseded, to constitute a part of this </font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">R</font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">egistration </font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">S</font><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">tatement. </font></p>
<p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Under no circumstances will any information filed under current Items 2.02 or 7.01 of Form 8-K, and exhibits furnished on such form that relate to such items, be deemed incorporated herein by reference unless such Form 8-K expressly provides to the contrary. </p>
<p style="margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Item 8. Exhibits. </p>
<p style="margin-top:6pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Reference is made under this Item 8 to the Exhibit Index included in this Registration Statement. <br /></p>
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<p style="margin-top:6pt;margin-bottom:0pt;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"></p>
<p style="text-align:center;margin-top:24pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Exhibit Index </p>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;width:auto; border-bottom:solid 1pt transparent;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Exhibit<br />Number</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;width:auto; border-bottom:solid 1pt transparent;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:8pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.5pt;width:auto; border-bottom:solid 1pt #000000;">
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Exhibit Description</p></td>
</tr>
<tr style="height:6pt;">
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="3" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">4.1</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="http://www.sec.gov/Archives/edgar/data/0001619856/000119312521227378/d189230dex31.htm"><font style="text-decoration:underline;">Amended and Restated Certificate of Incorporation, as currently in effect (incorporated herein by reference to Exhibit 3.1 to the Registrant&#8217;s Current Report on Form 8-K (File No. 001-40631), filed with the Commission on July 28, 2021).</font></a></p></td>
</tr>
<tr style="height:6pt;">
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="3" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">4.2</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="http://www.sec.gov/Archives/edgar/data/0001619856/000119312521227378/d189230dex32.htm"><font style="text-decoration:underline;">Amended and Restated Bylaws, as currently in effect (incorporated herein by reference to Exhibit 3.2 to the Registrant&#8217;s Current Report on Form 8-K (File No. 001-40631), filed with the Commission on July 28, 2021).</font></a></p></td>
</tr>
<tr style="height:6pt;">
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="3" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">5.1</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="ck1619856-ex51_10.htm"><font style="text-decoration:underline;">Opinion of Reed Smith LLP.</font></a><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </font></p></td>
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<tr style="height:6pt;">
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="3" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">23.1</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="ck1619856-ex231_8.htm"><font style="text-decoration:underline;">Consent of Independent Registered Public Accounting Firm.</font></a></p></td>
</tr>
<tr style="height:6pt;">
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="3" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">23.2</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="ck1619856-ex51_10.htm"><font style="text-decoration:underline;">Consent of Reed Smith LLP (reference is made to Exhibit 5.1).</font></a></p></td>
</tr>
<tr style="height:6pt;">
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="3" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">24.1</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="#POWER_ATTORNEY"><font style="text-decoration:underline;">Power of Attorney (reference is made to the signature page hereto).</font></a></p></td>
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<tr style="height:6pt;">
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="3" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">99.1</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="http://www.sec.gov/Archives/edgar/data/0001619856/000119312521224325/d178219dex996.htm"><font style="text-decoration:underline;">2021 Equity Incentive Plan (incorporated herein by reference to Exhibit 99.6 to the Registrant&#8217;s Registration Statement on Form S-8 (File No. 333-258173), filed with the Commission on July 26, 2021).</font></a><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </font></p></td>
</tr>
<tr style="height:6pt;">
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="3" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">99.2</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="http://www.sec.gov/Archives/edgar/data/0001619856/000095017022004233/crbu-ex10_50.htm"><font style="text-decoration:underline;">Form of Employee Stock Option Agreement under the 2021 Equity Incentive Plan of the Registrant (incorporated herein by reference to Exhibit 10.50 to the Registrant&#8217;s Annual Report on Form 10-K (File No. 001-40631), filed with the Commission on March 21, 2</font></a><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">.</font></p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td colspan="3" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">99.3</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="http://www.sec.gov/Archives/edgar/data/0001619856/000095017022004233/crbu-ex10_51.htm"><font style="text-decoration:underline;">Form of Non-Employee Director Stock Option Agreement under the 2021 Equity Incentive Plan of the Registrant (incorporated herein by reference to Exhibit 10.51 to the Registrant&#8217;s Annual Report on Form 10-K (File No. 001-40631), filed with the Commission o</font></a></p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td colspan="3" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">99.4</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="http://www.sec.gov/Archives/edgar/data/0001619856/000095017022004233/crbu-ex10_52.htm"><font style="text-decoration:underline;">Form of Restricted Stock Unit Award Grant Notice and Restricted Stock Unit Award Agreement under the 2021 Equity Incentive Plan of the Registrant (incorporated herein by reference to Exhibit 10.52 to the Registrant&#8217;s Current Report on Form 10-K (File No.</font></a><font style="font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"> </font></p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;">&nbsp;</p></td>
</tr>
<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">99.5</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="http://www.sec.gov/Archives/edgar/data/0001619856/000119312521224325/d178219dex997.htm"><font style="text-decoration:underline;">2021 Employee Stock Purchase Plan (incorporated herein by reference to Exhibit 99.7 to the Registrant&#8217;s Registration Statement on Form S-8 (File No. 333-258173), filed with the Commission on July 26, 2021).</font></a></p></td>
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<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-family:Times New Roman;font-size:10pt;">&nbsp;</p></td>
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<tr>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">107</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><a href="ck1619856-exfilingfees_9.htm"><font style="text-decoration:underline;">Filing Fee Table</font></a></p></td>
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<tr>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;white-space:nowrap;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td colspan="2" valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td colspan="2" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
</tr>
</table></div>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;"><a name="sig"></a>&nbsp;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"><br /></p>
<hr style="page-break-after:always;width:100%;">
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p>
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">SIGNATURES </p>
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">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 Berkeley, State of California, on this 21st day of March, 2022. </p>
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<table border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse; width:40%;">
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<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:7%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;text-align:left;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:1%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;text-align:left;">&nbsp;</p></td>
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:92%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;text-align:left;">&nbsp;</p></td>
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<td colspan="3" valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;font-weight:bold;color:#000000;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Caribou Biosciences, Inc.</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;text-align:left;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;text-align:left;">&nbsp;</p></td>
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<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">By:</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;text-align:left;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:1pt;border-bottom:Solid 0.75pt #000000;padding-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Rachel E. Haurwitz</p></td>
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<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;text-align:left;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;text-align:left;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Rachel E. Haurwitz</p></td>
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<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;text-align:left;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;text-align:left;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;text-align:left;font-style:italic;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;">President and Chief Executive Officer</p></td>
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</table></div>
<p style="text-align:center;margin-top:24pt;margin-bottom:0pt;text-indent:0%;font-weight:bold;font-size:10pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;"><a name="POWER_ATTORNEY"></a><a name="POWER_ATTORNEY"></a>POWER OF ATTORNEY </p>
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below does hereby constitute and appoint Rachel E. Haurwitz, Barbara G. McClung, and Jason V. O&#8217;Byrne and each of them, with full power of substitution and full power to act without the other, his or her true and lawful attorney-in-fact and agent to act for him or her in his or her name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this registration statement, and to file this registration statement, with all exhibits thereto, and other documents in connection therewith, with the SEC, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in order to effectuate the same as fully, to all intents and purposes, as they or he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, may lawfully do or cause to be done by virtue hereof. </p>
<p style="margin-top:12pt;margin-bottom:0pt;text-indent:0%;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">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 date indicated. </p>
<div align="left">
<table border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse;  margin-left:0.05%;width:99.95%;">
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:44%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:1%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:16%;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
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<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.5pt;width:auto; border-bottom:solid 1pt #000000;white-space:nowrap;">
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Signature</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;width:auto; border-bottom:solid 1pt transparent;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:8pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.5pt;width:auto; border-bottom:solid 1pt #000000;">
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Title</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;width:auto; border-bottom:solid 1pt transparent;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:8pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.5pt;width:auto; border-bottom:solid 1pt #000000;">
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-weight:bold;color:#000000;font-size:8pt;font-family:Times New Roman;font-style:normal;text-transform:none;font-variant: normal;">Date</p></td>
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<tr style="height:12pt;">
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;border-bottom:Solid 0.75pt #000000;padding-bottom:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Rachel E. Haurwitz</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Rachel E. Haurwitz</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">President and Chief Executive Officer and Director</p>
<p style="margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-style:italic;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;">(Principal Executive Officer)</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">March 21, 2022</p></td>
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<tr style="height:12pt;">
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;border-bottom:Solid 0.75pt #000000;padding-bottom:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Jason V. O&#8217;Byrne</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Jason V. O&#8217;Byrne</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Chief Financial Officer</p>
<p style="margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-style:italic;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;">(Principal Financial Officer)</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">March 21, 2022</p></td>
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<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;border-bottom:Solid 0.75pt #000000;padding-bottom:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Ryan Fischesser</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Ryan Fischesser</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Controller</p>
<p style="margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-style:italic;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;text-transform:none;font-variant: normal;">(Principal Accounting Officer)</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">March 21, 2022</p></td>
</tr>
<tr style="height:12pt;">
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;border-bottom:Solid 0.75pt #000000;padding-bottom:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Scott Braunstein</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Scott Braunstein</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Director</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">March 21, 2022</p></td>
</tr>
<tr style="height:12pt;">
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;border-bottom:Solid 0.75pt #000000;padding-bottom:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Andrew Guggenhime</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Andrew Guggenhime</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Director</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">March 21, 2022</p></td>
</tr>
<tr style="height:12pt;">
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;border-bottom:Solid 0.75pt #000000;padding-bottom:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Dara Richardson-Heron</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Dara Richardson-Heron</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Director</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">March 21, 2022</p></td>
</tr>
<tr style="height:12pt;">
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr>
<tr>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;border-bottom:Solid 0.75pt #000000;padding-bottom:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Natalie Sacks</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Natalie Sacks</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Director</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">March 21, 2022</p></td>
</tr>
<tr style="height:12pt;">
<td valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
<td colspan="2" valign="middle"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:1pt;">&nbsp;</p></td>
</tr></table></div>
<hr style="page-break-after:always;width:100%;">
<div align="left">
<table border="0" cellspacing="0" cellpadding="0" style="border-collapse:collapse;  margin-left:0.05%;width:99.95%;">
<tr>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;border-bottom:Solid 0.75pt #000000;padding-bottom:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><font style="color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Nancy Whiting</font></p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Nancy Whiting</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Director</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">March 21, 2022</p></td>
</tr>
<tr>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="border-bottom:Solid 0.75pt #000000;padding-bottom:0pt;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">/s/ Ran Zheng</p>
<p style="text-align:center;margin-bottom:1pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Ran Zheng</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">Director</p></td>
<td valign="bottom"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;font-size:10pt;">&nbsp;</p></td>
<td valign="top"  style="padding-left:0.25pt;padding-Right:0.25pt;padding-Top:0.25pt;padding-Bottom:0.25pt;width:auto;">
<p style="text-align:center;margin-bottom:0pt;margin-top:0pt;margin-left:0pt;;text-indent:0pt;;color:#000000;font-size:10pt;font-family:Times New Roman;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">March 21, 2022</p></td>
</tr>
</table></div>
<p style="margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;">&nbsp;</p></body>
</html>
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ck1619856-s8.DOCX.htm
As filed with the Securities and Exchange Commission on March 21, 2022
Registration No. 333-
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
Caribou Biosciences, Inc.
(Exact name of Registrant as specified in its charter)
Delaware
45-3728228
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer
Identification Number)
2929 7th Street, Suite 105
Berkeley, CA
94710
(Address of Principal Executive Offices)
(Zip Code)
Caribou Biosciences, Inc. 2021 Equity Incentive Plan
Caribou Biosciences, Inc. 2021 Employee Stock Purchase Plan
(Full Title of the Plan)
Rachel E. Haurwitz, Ph.D.
President and Chief Executive Officer
Caribou Biosciences, Inc.
2929 7th Street, Suite 105
Berkeley, California 94710
(510) 982-6030
(Name, address, including zip code, and telephone number, including area code, of agent for service)
Copies to:
Ashok W. Mukhey, Esq.
Wendy A. Grasso, Esq.
Reed Smith LLP
1901 Avenue of the Stars, Suite 700
Los Angeles, California 90067
Telephone: (310) 734-5200
Barbara G. McClung, Esq.
Caribou Biosciences, Inc.
2929 7
th
Street, Suite 105
Berkeley, California 94710
Telephone: (510) 982-6030
Jeffrey G. Aromatorio, Esq.
Reed Smith LLP
225 Fifth Avenue
Pittsburgh, Pennsylvania 15222
Telephone: (412) 288-3364
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.
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.
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EXPLANATORY NOTE
This Registration Statement on Form S-8 is filed by Caribou Biosciences, Inc., a Delaware corporation (the "Registrant"), relating to 3,013,157 shares of its common stock, par value $0.0001 per share (the "Common Stock"), to be issued pursuant to the Registrant's 2021 Equity Incentive Plan ("2021 EIP") and 602,631 shares of Common Stock to be issued pursuant to the Registrant's 2021 Employee Stock Purchase Plan ("2021 ESPP"), which Common Stock is in addition to the 6,134,526 shares of Common Stock already issuable under the 2021 EIP and the 511,000 shares of Common Stock already issuable under the 2021 ESPP as registered on the Registrant's Form S-8 filed with the Securities and Exchange Commission (the "Commission") on July 26, 2021 (File No. 333-258173) (the "Prior Registration Statement"). These additional shares of Common Stock have been reserved for issuance as a result of the operation of the "evergreen" provision in the Registrant's 2021 EIP and 2021 ESPP, which provides that the total number of shares subject to such plan will be increased each year pursuant to a specified formula.
This Registration Statement relates to securities of the same class as that to which the Prior Registration Statement relates, and it is submitted in accordance with General Instruction E to Form S-8 regarding Registration of Additional Securities. Pursuant to General Instruction E of Form S-8, the contents of the Prior Registration Statement are incorporated herein by reference and made part of this Registration Statement, except as amended hereby.
PART I
INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS
The information called for in Part I of Form S-8 is not being filed with or included in this Form S-8 (by incorporation by reference or otherwise) in accordance with the rules and regulations of the Securities and Exchange Commission (the "Commission").
PART II
INFORMATION REQUIRED IN THE REGISTRATION STATEMENT
In this registration statement, Caribou Biosciences, Inc. is sometimes referred to as "Registrant," "we," "us," or "our."
Item 3. Incorporation of Documents by Reference.
The following documents previously filed by Caribou Biosciences, Inc. (the "Registrant") with the Commission are incorporated by reference into this Registration Statement:
(a)
Registrant's Annual Report on
Form 10-K
for the year ended December 31, 2021 filed with the Commission on March 21, 2022;
(b)
Registrant's Current Report on
Form 8-K
filed with the Commission on
January 18, 2022
and Current Report on
Form 8-K
filed with the Commission on
January 19, 2022
; and
(c)
The description of the Registrant's Common Stock which is contained in a registration statement on
Form 8-A
filed on July 19, 2021 (File No. 001-40631) under the Exchange Act of 1934, as amended (the "Exchange Act"), as updated by the description of the Registrant's capital stock contained in Exhibit 4.1 to the Registrant's Annual Report on Form 10-K, for the fiscal year ended December 31, 2021, including any amendment or report filed for the purpose of updating such description.
All documents that the Registrant subsequently files pursuant to Sections 13(a), 13(c), 14, and 15(d) of the Exchange Act prior to the filing of a post-effective amendment to this Registration Statement that indicates that all of the shares of Common Stock offered have been sold or that deregisters all of such shares then remaining unsold shall be deemed
to be incorporated by reference into this
R
egistration
S
tatement and to be a part hereof from the date of the filing of such documents; except as to any portion of any future annual or quarterly report to stockholders or document or current report furnished under current Items 2.02 or 7.01 of Form 8-K, and exhibits furnished on such form that relate to such items, that is not deemed filed under such provisions. For the purposes of this
R
egistration
S
tatement, any statement contained in a document incorporated or deemed to be incorporated by reference herein shall be deemed to be modified or superseded to the extent that a statement contained herein or in any other subsequently filed document
that
also is or 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 superseded, to constitute a part of this
R
egistration
S
tatement.
Under no circumstances will any information filed under current Items 2.02 or 7.01 of Form 8-K, and exhibits furnished on such form that relate to such items, be deemed incorporated herein by reference unless such Form 8-K expressly provides to the contrary.
Item 8. Exhibits.
Reference is made under this Item 8 to the Exhibit Index included in this Registration Statement.
Exhibit Index
Exhibit
Number
Exhibit Description
4.1
Amended and Restated Certificate of Incorporation, as currently in effect (incorporated herein by reference to Exhibit 3.1 to the Registrant's Current Report on Form 8-K (File No. 001-40631), filed with the Commission on July 28, 2021).
4.2
Amended and Restated Bylaws, as currently in effect (incorporated herein by reference to Exhibit 3.2 to the Registrant's Current Report on Form 8-K (File No. 001-40631), filed with the Commission on July 28, 2021).
5.1
Opinion of Reed Smith LLP.
23.1
Consent of Independent Registered Public Accounting Firm.
23.2
Consent of Reed Smith LLP (reference is made to Exhibit 5.1).
24.1
Power of Attorney (reference is made to the signature page hereto).
99.1
2021 Equity Incentive Plan (incorporated herein by reference to Exhibit 99.6 to the Registrant's Registration Statement on Form S-8 (File No. 333-258173), filed with the Commission on July 26, 2021).
99.2
Form of Employee Stock Option Agreement under the 2021 Equity Incentive Plan of the Registrant (incorporated herein by reference to Exhibit 10.50 to the Registrant's Annual Report on Form 10-K (File No. 001-40631), filed with the Commission on March 21, 2
.
99.3
Form of Non-Employee Director Stock Option Agreement under the 2021 Equity Incentive Plan of the Registrant (incorporated herein by reference to Exhibit 10.51 to the Registrant's Annual Report on Form 10-K (File No. 001-40631), filed with the Commission o
99.4
Form of Restricted Stock Unit Award Grant Notice and Restricted Stock Unit Award Agreement under the 2021 Equity Incentive Plan of the Registrant (incorporated herein by reference to Exhibit 10.52 to the Registrant's Current Report on Form 10-K (File No.
99.5
2021 Employee Stock Purchase Plan (incorporated herein by reference to Exhibit 99.7 to the Registrant's Registration Statement on Form S-8 (File No. 333-258173), filed with the Commission on July 26, 2021).
107
Filing Fee Table
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 Berkeley, State of California, on this 21st day of March, 2022.
Caribou Biosciences, Inc.
By:
/s/ Rachel E. Haurwitz
Rachel E. Haurwitz
President and Chief Executive Officer
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below does hereby constitute and appoint Rachel E. Haurwitz, Barbara G. McClung, and Jason V. O'Byrne and each of them, with full power of substitution and full power to act without the other, his or her true and lawful attorney-in-fact and agent to act for him or her in his or her name, place and stead, in any and all capacities, to sign any and all amendments (including post-effective amendments) to this registration statement, and to file this registration statement, with all exhibits thereto, and other documents in connection therewith, with the SEC, granting unto said attorneys-in-fact and agents, and each of them, full power and authority to do and perform each and every act and thing requisite and necessary to be done in order to effectuate the same as fully, to all intents and purposes, as they or he or she might or could do in person, hereby ratifying and confirming all that said attorneys-in-fact and agents, or any of them, 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 date indicated.
Signature
Title
Date
/s/ Rachel E. Haurwitz
Rachel E. Haurwitz
President and Chief Executive Officer and Director
(Principal Executive Officer)
March 21, 2022
/s/ Jason V. O'Byrne
Jason V. O'Byrne
Chief Financial Officer
(Principal Financial Officer)
March 21, 2022
/s/ Ryan Fischesser
Ryan Fischesser
Controller
(Principal Accounting Officer)
March 21, 2022
/s/ Scott Braunstein
Scott Braunstein
Director
March 21, 2022
/s/ Andrew Guggenhime
Andrew Guggenhime
Director
March 21, 2022
/s/ Dara Richardson-Heron
Dara Richardson-Heron
Director
March 21, 2022
/s/ Natalie Sacks
Natalie Sacks
Director
March 21, 2022
/s/ Nancy Whiting
Nancy Whiting
Director
March 21, 2022
/s/ Ran Zheng
Ran Zheng
Director
March 21, 2022