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<title>cstl-20210406</title></head><body><div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="i00508dbfcd51498da1678b83fea3f78f_D20210406-20210406" name="dei:EntityCentralIndexKey" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml80L2ZyYWc6ZDQyZGYzOGQwYjNhNGViM2JjZjRmOTMyOTVmMzMzNDUvdGFibGU6OGQwYzViMTUxYjM4NDhkMmJkZjc5ZGUwNWQ4MTA5NjYvdGFibGVyYW5nZTo4ZDBjNWIxNTFiMzg0OGQyYmRmNzlkZTA1ZDgxMDk2Nl8wLTEtMS0xLTA_2c80326d-7d93-4ea8-92aa-1311cc0a7f70">0001447362</ix:nonNumeric><ix:nonNumeric contextRef="i00508dbfcd51498da1678b83fea3f78f_D20210406-20210406" format="ixt:booleanfalse" name="dei:AmendmentFlag" 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scheme="http://www.sec.gov/CIK">0001447362</xbrli:identifier><xbrli:segment><xbrldi:explicitMember dimension="dei:EntityAddressesAddressTypeAxis">dei:FormerAddressMember</xbrldi:explicitMember></xbrli:segment></xbrli:entity><xbrli:period><xbrli:startDate>2021-04-06</xbrli:startDate><xbrli:endDate>2021-04-06</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div id="i9c8b7aef72334c23b3493cd3b5cf5c42_1"></div><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div style="-sec-extract:summary;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-top:3pt double #000000;padding:0 1pt"></td></tr></table></div><div style="margin-top:6pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">UNITED STATES</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">SECURITIES AND EXCHANGE COMMISSION</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">Washington, D.C. 20549</span></div><div><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:14pt;font-weight:700;line-height:120%">FORM <ix:nonNumeric contextRef="i00508dbfcd51498da1678b83fea3f78f_D20210406-20210406" name="dei:DocumentType" 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Friendswood Drive</ix:nonNumeric>, <ix:nonNumeric contextRef="i00508dbfcd51498da1678b83fea3f78f_D20210406-20210406" name="dei:EntityAddressAddressLine2" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGFibGU6ZGI5MzA2YmRjOGQ4NDE3MWI0ZDUwMzFkNDIzNzg3YzkvdGFibGVyYW5nZTpkYjkzMDZiZGM4ZDg0MTcxYjRkNTAzMWQ0MjM3ODdjOV8wLTEtMS0xLTAvdGV4dHJlZ2lvbjo1YzIyODIyZTgyNWM0MWZiYjMxNTU1YzYzZWNjMjllN184_f9cc1b3c-34b5-42f0-abe8-2f8fad764a9c">Suite 401</ix:nonNumeric></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i00508dbfcd51498da1678b83fea3f78f_D20210406-20210406" name="dei:EntityAddressCityOrTown" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGFibGU6ZGI5MzA2YmRjOGQ4NDE3MWI0ZDUwMzFkNDIzNzg3YzkvdGFibGVyYW5nZTpkYjkzMDZiZGM4ZDg0MTcxYjRkNTAzMWQ0MjM3ODdjOV8wLTEtMS0xLTAvdGV4dHJlZ2lvbjo1YzIyODIyZTgyNWM0MWZiYjMxNTU1YzYzZWNjMjllN18xMQ_af092b16-a1a8-4f80-8494-d3ca5196b816">Friendswood</ix:nonNumeric>, <ix:nonNumeric contextRef="i00508dbfcd51498da1678b83fea3f78f_D20210406-20210406" format="ixt-sec:stateprovnameen" name="dei:EntityAddressStateOrProvince" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGFibGU6ZGI5MzA2YmRjOGQ4NDE3MWI0ZDUwMzFkNDIzNzg3YzkvdGFibGVyYW5nZTpkYjkzMDZiZGM4ZDg0MTcxYjRkNTAzMWQ0MjM3ODdjOV8wLTEtMS0xLTAvdGV4dHJlZ2lvbjo1YzIyODIyZTgyNWM0MWZiYjMxNTU1YzYzZWNjMjllN18xNQ_9bfbc76d-8528-4554-a653-e40b04575ad7">Texas</ix:nonNumeric></span></div></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i00508dbfcd51498da1678b83fea3f78f_D20210406-20210406" name="dei:EntityAddressPostalZipCode" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGFibGU6ZGI5MzA2YmRjOGQ4NDE3MWI0ZDUwMzFkNDIzNzg3YzkvdGFibGVyYW5nZTpkYjkzMDZiZGM4ZDg0MTcxYjRkNTAzMWQ0MjM3ODdjOV8wLTQtMS0xLTA_d4c18b7b-fbab-4e96-aa01-cc1d3f621feb">77546</ix:nonNumeric></span></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="6" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">(Address of principal executive offices)</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">(Zip Code)</span></td></tr></table></div><div><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Registrant&#8217;s telephone number, including area code: (<ix:nonNumeric contextRef="i00508dbfcd51498da1678b83fea3f78f_D20210406-20210406" name="dei:CityAreaCode" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGV4dHJlZ2lvbjpiYjQ5NWZkMmFkMGY0OWQ3OTEwZTgxYzlhNDMxY2Q1NF8zMzM3_f6ad1790-2a8a-49d0-b7e9-ec78b7d21414">866</ix:nonNumeric>) <ix:nonNumeric contextRef="i00508dbfcd51498da1678b83fea3f78f_D20210406-20210406" name="dei:LocalPhoneNumber" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGV4dHJlZ2lvbjpiYjQ5NWZkMmFkMGY0OWQ3OTEwZTgxYzlhNDMxY2Q1NF8zMzQx_7ef0ea04-8f42-4631-994c-d907c40f3e7d">788-9007</ix:nonNumeric></span></div><div style="text-align:center"><span><br/></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i67f431c3812b4fc68768ea330cd1555e_D20210406-20210406" name="dei:EntityAddressAddressLine1" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGV4dHJlZ2lvbjpiYjQ5NWZkMmFkMGY0OWQ3OTEwZTgxYzlhNDMxY2Q1NF8xNjQ5MjY3NDQ1MTIy_184ae00f-e601-488e-9b1a-f3007a2dac69">820 S. Friendswood Drive</ix:nonNumeric>, <ix:nonNumeric contextRef="i67f431c3812b4fc68768ea330cd1555e_D20210406-20210406" name="dei:EntityAddressAddressLine2" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGV4dHJlZ2lvbjpiYjQ5NWZkMmFkMGY0OWQ3OTEwZTgxYzlhNDMxY2Q1NF8xNjQ5MjY3NDQ1MTIz_4098a87a-dbb3-44dc-b7b9-b34f01c89ff4">Suite 201</ix:nonNumeric></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i67f431c3812b4fc68768ea330cd1555e_D20210406-20210406" name="dei:EntityAddressCityOrTown" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGV4dHJlZ2lvbjpiYjQ5NWZkMmFkMGY0OWQ3OTEwZTgxYzlhNDMxY2Q1NF8xNjQ5MjY3NDQ1MTI0_3d507740-839e-4d4a-b101-2abe18e55e07">Friendswood</ix:nonNumeric>, <ix:nonNumeric contextRef="i67f431c3812b4fc68768ea330cd1555e_D20210406-20210406" format="ixt-sec:stateprovnameen" name="dei:EntityAddressStateOrProvince" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGV4dHJlZ2lvbjpiYjQ5NWZkMmFkMGY0OWQ3OTEwZTgxYzlhNDMxY2Q1NF8xNjQ5MjY3NDQ1MTI1_65e2d9e0-ee1c-405e-b90a-ac04d9661727">Texas</ix:nonNumeric> <ix:nonNumeric contextRef="i67f431c3812b4fc68768ea330cd1555e_D20210406-20210406" name="dei:EntityAddressPostalZipCode" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGV4dHJlZ2lvbjpiYjQ5NWZkMmFkMGY0OWQ3OTEwZTgxYzlhNDMxY2Q1NF8xNjQ5MjY3NDQ1MTI3_59536cef-c2e2-4715-8556-40dea5047d1e">77546</ix:nonNumeric></span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:120%">(Former name or former address, if changed since last report.)</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:&#160;</span></div><div><span><br/></span></div><div style="margin-bottom:6pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="i00508dbfcd51498da1678b83fea3f78f_D20210406-20210406" format="ixt-sec:boolballotbox" name="dei:WrittenCommunications" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGV4dHJlZ2lvbjpiYjQ5NWZkMmFkMGY0OWQ3OTEwZTgxYzlhNDMxY2Q1NF8zMzMx_c1e35221-6f4f-479b-91f6-884e8ad9451f">&#9744;</ix:nonNumeric></span><span style="color:#000000;font-family:'Arial',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;&#160;&#160;&#160;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</span></div><div style="margin-bottom:6pt"><span style="color:#000000;font-family:'Times New 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id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGV4dHJlZ2lvbjpiYjQ5NWZkMmFkMGY0OWQ3OTEwZTgxYzlhNDMxY2Q1NF8zMzM0_fbdd51a9-dda2-4c69-8ae4-120b005a19fc">&#9744;</ix:nonNumeric>&#160;&#160;&#160;&#160;Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))&#160;</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="i00508dbfcd51498da1678b83fea3f78f_D20210406-20210406" format="ixt-sec:boolballotbox" name="dei:PreCommencementIssuerTenderOffer" id="id3VybDovL2RvY3MudjEvZG9jOjljOGI3YWVmNzIzMzRjMjNiMzQ5M2NkM2I1Y2Y1YzQyL3NlYzo5YzhiN2FlZjcyMzM0YzIzYjM0OTNjZDNiNWNmNWM0Ml8xL2ZyYWc6YmI0OTVmZDJhZDBmNDlkNzkxMGU4MWM5YTQzMWNkNTQvdGV4dHJlZ2lvbjpiYjQ5NWZkMmFkMGY0OWQ3OTEwZTgxYzlhNDMxY2Q1NF8zMzQz_24cd16a9-3019-45d6-bfc9-5692f6572a45">&#9744;</ix:nonNumeric>&#160;&#160;&#160;&#160;Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))&#160;</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Securities registered pursuant to Section&#160;12(b) of the Act:&#160;</span><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:40.334%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.532%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:11.052%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.703%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:42.679%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Title of each class</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:700;line-height:100%">Trading Symbol(s)</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times 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style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"></td></tr></table></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item&#160;5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On April 6, 2021, the board of directors of Castle Biosciences, Inc. (the &#8220;Company&#8221;) appointed Kristen M. Oelschlager, R.N. as Chief Operating Officer of the Company.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Ms. Oelschlager, 53, had previously been serving as the Company&#8217;s Chief Operations Officer since August 2020. Prior to that, Ms. Oelschlager served as the Company&#8217;s Senior Vice President of Clinical Operations from January 2018 to August 2020, Vice President of Clinical Operations from 2013 to 2018 and Executive Director of Operations from October 2008 to 2013. From May 1996 to September 2008, Ms. Oelschlager served as Director of Clinical Research of Arizona Pulmonary Specialists. Ms. Oelschlager completed her core nursing requirements at Purdue University and holds an A.S. degree in Nursing from Indiana Vocational Technical College.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">There is no arrangement or understanding between Ms. Oelschlager and any other person pursuant to which Ms. Oelschlager was selected as an officer. There is no family relationship between Ms. Oelschlager and any director, executive officer or any person nominated or chosen by the Company to become a director or executive officer.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">There was no change to Ms. Oelschlager&#8217;s compensation in connection with her appointment to Chief Operating Officer.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Ms. Oelschlager&#8217;s daughter, Allysa Oelschlager, and son-in-law, Joshua Albers, are employed by the Company in non-officer positions. For the year ended December 31, 2020, Allysa Oelschlager and Joshua Albers received aggregate compensation of $337,110 and $344,038, respectively, of which $208,518 and $183,642, respectively, is the aggregate grant date fair value of option awards and stock awards. For the year ended December 31, 2019, Allysa Oelschlager and Joshua Albers received aggregate compensation of $152,859 and $170,237, respectively, of which $41,359 and $42,930, respectively, is the aggregate grant date fair value of option awards. The compensation for each of Allysa Oelschlager and Joshua Albers was established by the Company in accordance with its compensation practices applicable to employees with comparable qualifications and responsibilities and holding similar positions, without the involvement of Ms. Oelschlager. These amounts of compensation were calculated using the same methodology used in calculating the amount of compensation for the Company&#8217;s named executive officers as described under &#8220;Executive Compensation&#8221; in the Company&#8217;s definitive proxy statement filed with the Securities and Exchange Commission on April 23, 2020.</span></div><div><span><br/></span></div><div><span><br/></span></div><div style="margin-bottom:6pt;margin-top:6pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:2pt solid #000000;padding:0 1pt"></td></tr></table></div><div style="margin-bottom:6pt;margin-top:6pt;text-align:center"><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><hr style="page-break-after:always"/><div style="min-height:42.75pt;width:100%"><div><span><br/></span></div></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.853%"><tr><td style="width:1.0%"></td><td style="width:98.900%"></td><td style="width:0.1%"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:center;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">SIGNATURES</span></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has caused this report to be signed on its behalf by the undersigned hereunto duly authorized.<br/></span></td></tr></table></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;margin-bottom:5pt;vertical-align:text-bottom;width:99.707%"><tr><td style="width:1.0%"></td><td style="width:49.926%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:14.295%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.479%"></td><td style="width:0.1%"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="6" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">CASTLE BIOSCIENCES, INC.</span></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td></tr><tr style="height:15pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">By:</span></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">/s/ Derek J. Maetzold</span></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Derek J. Maetzold</span></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">President and Chief Executive Officer</span></td><td colspan="3" style="display:none"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:bottom"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Date: April 9, 2021</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="display:none"></td></tr></table></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">&#160;</span></div><div><span><br/></span></div><div><span><br/></span></div><div style="height:42.75pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div></body></html>
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cstl-20210406
UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM
8-K
CURRENT REPORT
Pursuant to Section 13 or 15(d)
of the Securities Exchange Act of 1934
Date of Report (Date of earliest event reported):
April 6, 2021
Castle Biosciences, Inc.
(Exact name of registrant as specified in its charter)
Delaware
001-38984
77-0701774
(state or other jurisdiction
of incorporation)
(Commission
File Number)
(I.R.S. Employer
Identification No.)
505 S. Friendswood Drive
,
Suite 401
Friendswood
,
Texas
77546
(Address of principal executive offices)
(Zip Code)
Registrant's telephone number, including area code: (
866
)
788-9007
820 S. Friendswood Drive
,
Suite 201
Friendswood
,
Texas
77546
(Former name or former address, if changed since last report.)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
☐
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
Common Stock, $0.001 par value per share
CSTL
The Nasdaq Global Market
Indicate by check mark whether the registrant is an emerging growth company as defined in as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b–2 of the Securities Exchange Act of 1934 (§ 240.12b–2 of this chapter).
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 13(a) of the Exchange Act.
☐
Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.
On April 6, 2021, the board of directors of Castle Biosciences, Inc. (the "Company") appointed Kristen M. Oelschlager, R.N. as Chief Operating Officer of the Company.
Ms. Oelschlager, 53, had previously been serving as the Company's Chief Operations Officer since August 2020. Prior to that, Ms. Oelschlager served as the Company's Senior Vice President of Clinical Operations from January 2018 to August 2020, Vice President of Clinical Operations from 2013 to 2018 and Executive Director of Operations from October 2008 to 2013. From May 1996 to September 2008, Ms. Oelschlager served as Director of Clinical Research of Arizona Pulmonary Specialists. Ms. Oelschlager completed her core nursing requirements at Purdue University and holds an A.S. degree in Nursing from Indiana Vocational Technical College.
There is no arrangement or understanding between Ms. Oelschlager and any other person pursuant to which Ms. Oelschlager was selected as an officer. There is no family relationship between Ms. Oelschlager and any director, executive officer or any person nominated or chosen by the Company to become a director or executive officer.
There was no change to Ms. Oelschlager's compensation in connection with her appointment to Chief Operating Officer.
Ms. Oelschlager's daughter, Allysa Oelschlager, and son-in-law, Joshua Albers, are employed by the Company in non-officer positions. For the year ended December 31, 2020, Allysa Oelschlager and Joshua Albers received aggregate compensation of $337,110 and $344,038, respectively, of which $208,518 and $183,642, respectively, is the aggregate grant date fair value of option awards and stock awards. For the year ended December 31, 2019, Allysa Oelschlager and Joshua Albers received aggregate compensation of $152,859 and $170,237, respectively, of which $41,359 and $42,930, respectively, is the aggregate grant date fair value of option awards. The compensation for each of Allysa Oelschlager and Joshua Albers was established by the Company in accordance with its compensation practices applicable to employees with comparable qualifications and responsibilities and holding similar positions, without the involvement of Ms. Oelschlager. These amounts of compensation were calculated using the same methodology used in calculating the amount of compensation for the Company's named executive officers as described under "Executive Compensation" in the Company's definitive proxy statement filed with the Securities and Exchange Commission on April 23, 2020.
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
CASTLE BIOSCIENCES, INC.
By:
/s/ Derek J. Maetzold
Derek J. Maetzold
President and Chief Executive Officer
Date: April 9, 2021