<?xml version="1.0" ?><!--XBRL Document Created with Wdesk from Workiva--><!--Copyright 2020 Workiva--><!--r:9da64cea-8510-44d3-88b8-90bb45cb8909,g:e819ddb1-578f-44bb-9ec0-c3bd0979b232,d:cc554a51b68e4f47b326017b3d25611b--><html xmlns="http://www.w3.org/1999/xhtml" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:ixt="http://www.xbrl.org/inlineXBRL/transformation/2015-02-26" xmlns:ixt-sec="http://www.sec.gov/inlineXBRL/transformation/2015-08-31" xmlns:dei="http://xbrl.sec.gov/dei/2019-01-31" xmlns:ix="http://www.xbrl.org/2013/inlineXBRL" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en-US"><head><meta http-equiv="Content-Type" content="text/html"/>


<title>zgnx-20201203</title></head><body><div style="display:none"><ix:header><ix:hidden><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:EntityCentralIndexKey" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl80L2ZyYWc6MmVhZTAyYjdjMWNkNDhkN2EzYzMxMmFhYmEzMTgwYzUvdGFibGU6ZjJlZWJlYzZhNjBhNDAzYzgxNGYzYzhiOGJkZGJmMmMvdGFibGVyYW5nZTpmMmVlYmVjNmE2MGE0MDNjODE0ZjNjOGI4YmRkYmYyY182LTEtMS0xLTA_d21d870e-5327-4a99-988e-715e3c6456c1">0001375151</ix:nonNumeric><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" format="ixt:booleanfalse" name="dei:AmendmentFlag" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl80L2ZyYWc6MmVhZTAyYjdjMWNkNDhkN2EzYzMxMmFhYmEzMTgwYzUvdGFibGU6ZjJlZWJlYzZhNjBhNDAzYzgxNGYzYzhiOGJkZGJmMmMvdGFibGVyYW5nZTpmMmVlYmVjNmE2MGE0MDNjODE0ZjNjOGI4YmRkYmYyY183LTEtMS0xLTA_b0b8c145-49f8-42b2-ad15-7947634ce64b">FALSE</ix:nonNumeric></ix:hidden><ix:references xml:lang="en-US"><link:schemaRef xlink:type="simple" xlink:href="zgnx-20201203.xsd"></link:schemaRef></ix:references><ix:resources><xbrli:context id="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208"><xbrli:entity><xbrli:identifier scheme="http://www.sec.gov/CIK">0001375151</xbrli:identifier></xbrli:entity><xbrli:period><xbrli:startDate>2020-12-08</xbrli:startDate><xbrli:endDate>2020-12-08</xbrli:endDate></xbrli:period></xbrli:context></ix:resources></ix:header></div><div id="icc554a51b68e4f47b326017b3d25611b_1"></div><div style="min-height:25.2pt;width:100%"><div><span><br/></span></div></div><div style="text-align:center"><span><br/></span></div><div style="margin-bottom:6pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:100.000%"><tr><td style="width:1.0%"></td><td style="width:22.463%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.009%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.009%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.009%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:18.010%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><td colspan="3" style="border-bottom:3pt double #000;padding:0 1pt"></td><td colspan="3" style="border-bottom:3pt double #000;padding:0 1pt"></td><td colspan="3" style="border-bottom:3pt double #000;padding:0 1pt"></td><td colspan="3" style="border-bottom:3pt double #000;padding:0 1pt"></td><td colspan="3" style="border-bottom:3pt double #000;padding:0 1pt"></td></tr></table></div><div><span><br/></span></div><div style="margin-top:4pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:18pt;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:18pt;font-weight:700;line-height:120%">SECURITIES AND EXCHANGE COMMISSION</span></div><div style="margin-bottom:9pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">WASHINGTON, D.C. 20549</span></div><div style="margin-bottom:6pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:522.00pt"><tr><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr></table></div><div style="margin-bottom:14pt;margin-top:14pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:22pt;font-weight:700;line-height:120%">FORM <ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:DocumentType" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGV4dHJlZ2lvbjplZDM1YTE4YWZlNmE0MTI4ODYzMTMxNWM1MGRiM2E2NF84OA_4d635a12-1bc6-4321-96c1-e959dffd164c">8-K</ix:nonNumeric></span></div><div style="margin-top:9pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">CURRENT REPORT</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Pursuant to Section&#160;13 or 15(d)</span></div><div style="text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">of the Securities Exchange Act of 1934</span></div><div style="margin-bottom:9pt;margin-top:9pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:700;line-height:120%">Date of Report (Date of earliest event reported): <ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" format="ixt:datemonthdayyearen" name="dei:DocumentPeriodEndDate" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGV4dHJlZ2lvbjplZDM1YTE4YWZlNmE0MTI4ODYzMTMxNWM1MGRiM2E2NF8xMDk5NTExNjcyMzc2_d13a4d0a-7329-4564-8c53-a9997a401c19">December 3, 2020</ix:nonNumeric> </span></div><div style="margin-bottom:9pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:522.00pt"><tr><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr></table></div><div style="margin-bottom:9pt;margin-top:9pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:24pt;font-weight:700;line-height:120%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:EntityRegistrantName" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGV4dHJlZ2lvbjplZDM1YTE4YWZlNmE0MTI4ODYzMTMxNWM1MGRiM2E2NF8yNDc_48aa1030-f0f7-420c-a4eb-3e1cac702250">ZOGENIX, INC.</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%">(Exact Name of Registrant as Specified in its Charter)</span></div><div style="text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:98.419%"><tr><td style="width:1.0%"></td><td style="width:32.038%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.383%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:32.038%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.383%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:31.458%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><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="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></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:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" format="ixt-sec:stateprovnameen" name="dei:EntityIncorporationStateCountryCode" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGFibGU6MDc1NGRhYWZhOTA1NGExMDgwYTVmZDE4M2MyMDFiMzQvdGFibGVyYW5nZTowNzU0ZGFhZmE5MDU0YTEwODBhNWZkMTgzYzIwMWIzNF8xLTAtMS0xLTA_88ec1ed0-80e7-42e7-9397-6f9b8fe39efb">Delaware</ix:nonNumeric></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:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:EntityFileNumber" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGFibGU6MDc1NGRhYWZhOTA1NGExMDgwYTVmZDE4M2MyMDFiMzQvdGFibGVyYW5nZTowNzU0ZGFhZmE5MDU0YTEwODBhNWZkMTgzYzIwMWIzNF8xLTItMS0xLTA_1acd0346-60db-48df-b520-7c98298e5313">001-34962</ix:nonNumeric></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:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:EntityTaxIdentificationNumber" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGFibGU6MDc1NGRhYWZhOTA1NGExMDgwYTVmZDE4M2MyMDFiMzQvdGFibGVyYW5nZTowNzU0ZGFhZmE5MDU0YTEwODBhNWZkMTgzYzIwMWIzNF8xLTQtMS0xLTA_94b48981-e8e5-4b38-96c6-5402c7674a25">20-5300780</ix:nonNumeric></span></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:8pt;font-weight:400;line-height:100%">(State or Other Jurisdiction<br/>of Incorporation)</span></td><td colspan="3" style="padding:0 1pt"></td><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:8pt;font-weight:400;line-height:100%">(Commission<br/>File Number)</span></td><td colspan="3" style="padding:0 1pt"></td><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:8pt;font-weight:400;line-height:100%">(IRS Employer<br/>Identification No.)</span></td></tr></table></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:522.00pt"><tr><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr></table></div><div><span><br/></span></div><div><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:98.132%"><tr><td style="width:1.0%"></td><td style="width:4.756%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:49.119%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.117%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:41.508%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><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="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><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="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:EntityAddressAddressLine1" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGFibGU6MjEyYWQwZjA5YjEwNDc2ODljYzMxMWNkNWNhYTFjYjEvdGFibGVyYW5nZToyMTJhZDBmMDliMTA0NzY4OWNjMzExY2Q1Y2FhMWNiMV8xLTEtMS0xLTAvdGV4dHJlZ2lvbjpmZWY2MzA0YWY2NzQ0MzVjYmRlNjAzZTc3NzUyYjY1Y180_52cbfa16-a4f5-492f-9dfe-084f82b674c0">5959 Horton Street</ix:nonNumeric>, <ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:EntityAddressAddressLine2" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGFibGU6MjEyYWQwZjA5YjEwNDc2ODljYzMxMWNkNWNhYTFjYjEvdGFibGVyYW5nZToyMTJhZDBmMDliMTA0NzY4OWNjMzExY2Q1Y2FhMWNiMV8xLTEtMS0xLTAvdGV4dHJlZ2lvbjpmZWY2MzA0YWY2NzQ0MzVjYmRlNjAzZTc3NzUyYjY1Y184_19ea4147-c69e-4978-919d-bb7754de36c7">Suite 500</ix:nonNumeric>, <ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:EntityAddressCityOrTown" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGFibGU6MjEyYWQwZjA5YjEwNDc2ODljYzMxMWNkNWNhYTFjYjEvdGFibGVyYW5nZToyMTJhZDBmMDliMTA0NzY4OWNjMzExY2Q1Y2FhMWNiMV8xLTEtMS0xLTAvdGV4dHJlZ2lvbjpmZWY2MzA0YWY2NzQ0MzVjYmRlNjAzZTc3NzUyYjY1Y18xMg_79acbefa-d688-49b3-be66-fa26229bb88f">Emeryville</ix:nonNumeric>, <ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" format="ixt-sec:stateprovnameen" name="dei:EntityAddressStateOrProvince" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGFibGU6MjEyYWQwZjA5YjEwNDc2ODljYzMxMWNkNWNhYTFjYjEvdGFibGVyYW5nZToyMTJhZDBmMDliMTA0NzY4OWNjMzExY2Q1Y2FhMWNiMV8xLTEtMS0xLTAvdGV4dHJlZ2lvbjpmZWY2MzA0YWY2NzQ0MzVjYmRlNjAzZTc3NzUyYjY1Y18xNg_7bd07fed-5936-447f-be76-fa2b17cc204b">California</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:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:EntityAddressPostalZipCode" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGFibGU6MjEyYWQwZjA5YjEwNDc2ODljYzMxMWNkNWNhYTFjYjEvdGFibGVyYW5nZToyMTJhZDBmMDliMTA0NzY4OWNjMzExY2Q1Y2FhMWNiMV8xLTMtMS0xLTA_8c7570c0-cbc9-477d-9c5a-5a65bcdac639">94608</ix:nonNumeric></span></td></tr><tr><td colspan="3" style="padding:0 1pt"></td><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:8pt;font-weight:400;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:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:8pt;font-weight:400;line-height:100%">(Zip Code)</span></td></tr></table></div><div style="margin-top:9pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Registrant&#8217;s telephone number, including area code:</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%"> (<ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:CityAreaCode" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGV4dHJlZ2lvbjplZDM1YTE4YWZlNmE0MTI4ODYzMTMxNWM1MGRiM2E2NF8zNjM_35f5fbd4-eee4-48ea-afd3-20aaf1e66b5b">510</ix:nonNumeric>)&#160;<ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:LocalPhoneNumber" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGV4dHJlZ2lvbjplZDM1YTE4YWZlNmE0MTI4ODYzMTMxNWM1MGRiM2E2NF8zNjc_70beaa16-b062-4c0a-9255-4663d387302d">550-8300</ix:nonNumeric></span></div><div style="margin-bottom:9pt;margin-top:9pt"><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:</span></div><div style="margin-bottom:6pt;padding-left:36pt;text-indent:-36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:125%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" format="ixt:booleanfalse" name="dei:WrittenCommunications" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGV4dHJlZ2lvbjplZDM1YTE4YWZlNmE0MTI4ODYzMTMxNWM1MGRiM2E2NF82Mjg5_49a669c3-f28d-4a01-942f-b2c88813a609">&#9744;</ix:nonNumeric>&#160;&#160;&#160;&#160;Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</span></div><div style="margin-bottom:6pt;padding-left:36pt;text-indent:-36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:125%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" format="ixt:booleanfalse" name="dei:SolicitingMaterial" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGV4dHJlZ2lvbjplZDM1YTE4YWZlNmE0MTI4ODYzMTMxNWM1MGRiM2E2NF82Mjkw_e53b34f4-16a7-40c5-9240-257804bc028d">&#9744;</ix:nonNumeric>&#160;&#160;&#160;&#160;Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</span></div><div style="margin-bottom:6pt;padding-left:36pt;text-indent:-36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:125%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" format="ixt:booleanfalse" name="dei:PreCommencementTenderOffer" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGV4dHJlZ2lvbjplZDM1YTE4YWZlNmE0MTI4ODYzMTMxNWM1MGRiM2E2NF82Mjkx_48e8aca5-264d-48f5-8de8-3a82c283b5fc">&#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))</span></div><div style="padding-left:36pt;text-indent:-36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" format="ixt:booleanfalse" name="dei:PreCommencementIssuerTenderOffer" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGV4dHJlZ2lvbjplZDM1YTE4YWZlNmE0MTI4ODYzMTMxNWM1MGRiM2E2NF82Mjky_35272eb0-dc3e-4032-b8d1-79761f9a2213">&#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))</span></div><div style="padding-left:36pt;text-indent:-36pt"><span><br/></span></div><div style="margin-bottom:6pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:522.00pt"><tr><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td><td style="width:1.0pt"></td><td style="width:172.00pt"></td><td style="width:1.0pt"></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="border-top:1pt solid #000000;padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr></table></div><div style="text-align:center"><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 12(b) of the Act:</span></div><div style="margin-top:9pt;text-align:center"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:98.419%"><tr><td style="width:1.0%"></td><td style="width:37.878%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.529%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:19.483%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.529%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:37.881%"></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:10pt;font-weight:400;line-height:100%;text-decoration:underline">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:10pt;font-weight:400;line-height:100%;text-decoration:underline">Trading symbol</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:10pt;font-weight:400;line-height:100%;text-decoration:underline">Name of each exchange on which registered</span></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:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:Security12bTitle" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGFibGU6ZjEzNmZkYTQ1OTM0NGJlODk5ODZiMmQwZThjMTI2ZTUvdGFibGVyYW5nZTpmMTM2ZmRhNDU5MzQ0YmU4OTk4NmIyZDBlOGMxMjZlNV8xLTAtMS0xLTcy_1382cbf3-593d-4b9d-bbb9-229a006fa57b">Common Stock, par value $0.001 per share</ix:nonNumeric></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:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" name="dei:TradingSymbol" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGFibGU6ZjEzNmZkYTQ1OTM0NGJlODk5ODZiMmQwZThjMTI2ZTUvdGFibGVyYW5nZTpmMTM2ZmRhNDU5MzQ0YmU4OTk4NmIyZDBlOGMxMjZlNV8xLTItMS0xLTcy_7388ecf5-b522-4c2e-a4e9-66ce03fbb6c8">ZGNX</ix:nonNumeric></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:10pt;font-weight:700;line-height:100%"><ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" format="ixt-sec:exchnameen" name="dei:SecurityExchangeName" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGFibGU6ZjEzNmZkYTQ1OTM0NGJlODk5ODZiMmQwZThjMTI2ZTUvdGFibGVyYW5nZTpmMTM2ZmRhNDU5MzQ0YmU4OTk4NmIyZDBlOGMxMjZlNV8xLTQtMS0xLTcy_f49cd61c-68ca-4998-8f59-630f379167fc">The Nasdaq Global Market</ix:nonNumeric></span></td></tr></table></div><div style="margin-top:6pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter). </span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Emerging growth company</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:9pt;font-weight:400;line-height:120%">&#160;</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%"> <ix:nonNumeric contextRef="i854f55e2f02e44c684352d2b79c7e667_D20201208-20201208" format="ixt-sec:boolballotbox" name="dei:EntityEmergingGrowthCompany" id="id3VybDovL2RvY3MudjEvZG9jOmNjNTU0YTUxYjY4ZTRmNDdiMzI2MDE3YjNkMjU2MTFiL3NlYzpjYzU1NGE1MWI2OGU0ZjQ3YjMyNjAxN2IzZDI1NjExYl8xL2ZyYWc6ZWQzNWExOGFmZTZhNDEyODg2MzEzMTVjNTBkYjNhNjQvdGV4dHJlZ2lvbjplZDM1YTE4YWZlNmE0MTI4ODYzMTMxNWM1MGRiM2E2NF82Mjg4_7ca43137-4eb1-4db9-a1e4-dcb512b9dc7e">&#9744;</ix:nonNumeric></span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">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&#160;13(a) of the Exchange Act.  &#9744;</span></div><div style="height:25.2pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><div id="icc554a51b68e4f47b326017b3d25611b_119"></div><hr style="page-break-after:always"/><div style="min-height:25.2pt;width:100%"><div><span><br/></span></div></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">Item 1.01.            Entry into a Material Definitive Agreement.</span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">On December 3, 2020, (the &#8220;Effective Date&#8221;), Zogenix, Inc. (the &#8220;Company&#8221;), entered into a Collaboration, Option and License Agreement (the &#8220;Collaboration Agreement&#8221;) with Tevard Biosciences, Inc. (&#8220;Tevard&#8221;) for the research, development and commercialization of gene therapies for the treatment of Dravet syndrome and other epilepsy disorders.</span></div><div style="margin-top:9pt;text-align:justify;text-indent:24.48pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Collaboration and Licenses</span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Under the Collaboration Agreement, the Company and Tevard agreed to collaborate on the conduct of at least two collaboration programs: (i) a program to develop a treatment for Dravet syndrome (the &#8220;Dravet Syndrome Program&#8221;) and (ii) a second program to develop a treatment for another form of epilepsy to be determined by the Company subject to approval of a joint review committee comprised of representatives from both parties (the &#8220;Second Program&#8221;). The Collaboration Agreement also provides that the Company and Tevard may agree to collaborate on additional programs to develop therapies for other forms of epilepsy selected by the Company and subject to approval of the joint committee (each, a &#8220;Subsequent Program&#8221;). Under the Collaboration Agreement, Tevard will lead research and development activities until a program is transitioned to the Company based on a set of criteria established for each program.  After the transition of a program, the Company will lead continued development of the product candidates, including obtaining regulatory approval, and subsequently commercializing any approved products.</span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Under the terms of the Collaboration Agreement, Tevard has agreed to grant to the Company, as of the Effective Date, an exclusive, worldwide, sublicensable license to certain of Tevard&#8217;s intellectual property rights, for the development, commercialization, manufacturing, use and sale of gene therapy products for the Dravet Syndrome Program (the &#8220;Dravet Products&#8221;), and an option to receive exclusive, worldwide, sublicensable licenses to certain of Tevard&#8217;s intellectual property rights, for the development, commercialization, manufacturing, use and sale of gene therapy products from the Second Program and any Subsequent Program (together with the Dravet Products, the &#8220;Products&#8221;). Tevard retains all rights to a Product from the Second Program or any Subsequent Program if the Company does not exercise its option for that Product (such product, a &#8220;Tevard Product&#8221;).</span></div><div style="margin-top:9pt;text-align:justify;text-indent:24.48pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Certain Financial Terms</span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Under the terms of the Collaboration Agreement, the Company has agreed to pay Tevard an initial collaboration payment of $10.0 million (the &#8220;Initial Payment&#8221;) within five business days after the Effective Date. The Initial Payment was partially offset by $4.8 million previously paid by the Company to Tevard pursuant to an existing option agreement related to the programs subject to the Collaboration Agreement.  Additionally, as described in greater detail below under the heading &#8220;Promissory Note,&#8221; the Company has agreed to purchase a convertible promissory note (the &#8220;Promissory Note&#8221;) from Tevard for $5.0 million in connection with entering into the Collaboration Agreement.  The Promissory Note will accrue interest at a rate of 3.50% per annum. The Promissory Note will mature on December 3, 2022 (the &#8220;Note Maturity Date&#8221;), unless converted into Tevard&#8217;s common stock in connection with a specified Tevard financing. The Promissory Note may not be prepaid, in whole or in part, prior to the Note Maturity Date without the Company&#8217;s consent.</span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company will fund all development costs incurred for the Dravet Syndrome Program and, upon the Company&#8217;s exercise of its option for the Second Program, and each Subsequent Program, all the development costs incurred for such programs, including such costs for each program dating from the Effective Date though the Company&#8217;s exercise of its option for such program.</span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Collaboration Agreement provides for: (i) clinical development, regulatory and commercial milestone payments from the Company to Tevard of (i) up to $35.0 million in clinical development and regulatory milestone payments and $65.0 million in commercial milestone payments for the Dravet Syndrome Program; and (ii) up to $25.0 million in clinical development and regulatory milestone payments and $45.0 million in commercial milestone payments for the Second Program and each Subsequent Program.  The Company also agreed to pay an option exercise fee of $2.0 million to Tevard at the time the Company exercises its option under a Subsequent Program if the Subsequent Program is eligible for the Company to option prior to the fifth anniversary of the Effective Date (the &#8220;Research Term&#8221;). If a Subsequent Program becomes eligible for the Company to exercise its option after the Research Term, the option exercise fee is $0.5 million for such Subsequent Program.  The Company does not owe an option exercise fee when it exercises its options under the Dravet Syndrome Program or the Second Program. </span></div><div style="margin-top:9pt;text-align:justify;text-indent:24.48pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Royalty Terms</span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The Company has also agreed to pay Tevard tiered royalties, based on future net sales of the Products licensed by the Company. Such royalty percentages, for net sales globally are: (i) a tiered rate ranging from the mid-single-digits to a percentage not to exceed 20% of annual net sales for the Dravet Products; and (ii) a tiered rate ranging from a mid- to high- single digit percentage of annual net sales for all other Products optioned by the Company. On a country-by-country and Product-by-Product basis, royalty payments would commence on the first commercial sale of a Product by the Company and terminate on the later of: (a) the expiration of patent based exclusivity of the Product in such country; (b) the expiration of </span></div><div style="height:25.2pt;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:25.2pt;width:100%"><div><span><br/></span></div></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">regulatory based exclusivity of the Product in such country; and (c) 10 years from the first commercial sale of the Product in such country (the &#8220;Royalty Term&#8221;).  If the Company does not exercise its option for a Product and Tevard develops such Product as a Tevard Product, then Tevard shall pay the Company royalties based on future net sales of such Tevard Product.</span></div><div style="margin-top:9pt;text-align:justify;text-indent:24.48pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Intellectual Property</span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Under the terms of the Collaboration Agreement and subject to specified exceptions therein, each party owns the entire right, title and interest in and to all intellectual property rights made solely by its employees or agents in the course of the collaboration. The parties jointly own all rights, title and interest in and to all intellectual property rights made or invented jointly by employees or agents of both parties.</span></div><div style="margin-top:9pt;text-align:justify;text-indent:24.48pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-style:italic;font-weight:400;line-height:120%">Termination</span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Unless earlier terminated, the Collaboration Agreement expires on the later of: (i) the last to expire Royalty Term with respect to a Product in all countries; or (ii) the last to expire Tevard Royalty Term with respect to a Tevard Product in all countries. Either party may terminate the Collaboration Agreement for the other party&#8217;s uncured material breach, insolvency or bankruptcy. The Company may terminate the Collaboration Agreement on a program-by-program basis by providing prior written notice to Tevard of: (i) 180 days if prior to the end of the Research Term; and (ii) 90 days if after the end of the Research Term. The Company may also terminate the Collaboration Agreement, subject to specified conditions, on a Product-by-Product or program-by-program basis if there a safety concern arises with respect to the product or program.</span></div><div style="margin-top:9pt;text-align:justify"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">The foregoing description of the Collaboration Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Collaboration Agreement, a copy of which will be filed as exhibits to the Company&#8217;s Annual Report on Form 10-K for the year ending December 31, 2020. The Company intends to redact certain portions of the Collaboration Agreement for confidentiality purposes.</span></div><div style="height:25.2pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div><div id="icc554a51b68e4f47b326017b3d25611b_7"></div><hr style="page-break-after:always"/><div style="min-height:22.5pt;width:100%"><div><span><br/></span></div></div><div style="margin-top:9pt;text-align:center"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:120%">SIGNATURES</span></div><div style="margin-top:13pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:120%">Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:12pt;font-weight:400;line-height:120%">&#160;</span></div><div style="margin-bottom:6pt"><table style="border-collapse:collapse;display:inline-table;vertical-align:top;width:97.988%"><tr><td style="width:1.0%"></td><td style="width:42.448%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.826%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:1.979%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:0.533%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:5.938%"></td><td style="width:0.1%"></td><td style="width:0.1%"></td><td style="width:1.559%"></td><td style="width:0.1%"></td><td style="width:1.0%"></td><td style="width:41.717%"></td><td style="width:0.1%"></td></tr><tr style="height:3pt"><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="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:0 1pt"></td></tr><tr><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="padding:0 1pt"></td><td colspan="9" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:700;line-height:100%">ZOGENIX, INC.</span></td></tr><tr style="height:3pt"><td colspan="3" style="padding:0 1pt"></td><td colspan="6" style="padding:0 1pt"></td><td colspan="6" style="padding:0 1pt"></td><td colspan="6" style="padding:0 1pt"></td></tr><tr><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Date: December 8, 2020</span></td><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="padding:2px 1pt;text-align:left;vertical-align:middle"><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:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">/s/ Shawnte M. Mitchell</span></td></tr><tr><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="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Name:</span></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:middle"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Shawnte M. Mitchell</span></td></tr><tr><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="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:100%">Title:</span></td><td colspan="3" style="padding:0 1pt"></td><td colspan="3" style="padding:2px 1pt;text-align:left;vertical-align:top"><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:10pt;font-weight:400;line-height:115%">Executive Vice President, General Counsel and Secretary</span></div></td></tr></table></div><div><span><br/></span></div><div style="height:22.5pt;position:relative;width:100%"><div style="bottom:0;position:absolute;width:100%"><div><span><br/></span></div></div></div></body></html>
[{"type": "8-K", "sequence": "1", "filename": "zgnx-20201203.htm", "description": "8-K", "secsgml_size_bytes": 44874}]
{"company-data": {"conformed-name": "ZOGENIX, INC.", "cik": "0001375151", "assigned-sic": "2834", "irs-number": "205300780", "state-of-incorporation": "DE", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "8-K", "act": "34", "file-number": "001-34962", "film-number": "201376185"}, "business-address": {"street1": "5959 HORTON STREET, SUITE 500", "city": "EMERYVILLE", "state": "CA", "zip": "94608", "phone": "(510) 550-8300"}, "mail-address": {"street1": "5959 HORTON STREET, SUITE 500", "city": "EMERYVILLE", "state": "CA", "zip": "94608"}, "former-company": {"former-conformed-name": "ZOGENIX INC", "date-changed": "20060911"}}
zgnx-20201203
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):
December 3, 2020
ZOGENIX, INC.
(Exact Name of Registrant as Specified in its Charter)
Delaware
001-34962
20-5300780
(State or Other Jurisdiction
of Incorporation)
(Commission
File Number)
(IRS Employer
Identification No.)
5959 Horton Street
,
Suite 500
,
Emeryville
,
California
94608
(Address of Principal Executive Offices)
(Zip Code)
Registrant's telephone number, including area code:
(
510
)
550-8300
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
Name of each exchange on which registered
Common Stock, par value $0.001 per share
ZGNX
The Nasdaq Global Market
Indicate by check mark whether the registrant is an emerging growth company 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 1.01.            Entry into a Material Definitive Agreement.
On December 3, 2020, (the "Effective Date"), Zogenix, Inc. (the "Company"), entered into a Collaboration, Option and License Agreement (the "Collaboration Agreement") with Tevard Biosciences, Inc. ("Tevard") for the research, development and commercialization of gene therapies for the treatment of Dravet syndrome and other epilepsy disorders.
Collaboration and Licenses
Under the Collaboration Agreement, the Company and Tevard agreed to collaborate on the conduct of at least two collaboration programs: (i) a program to develop a treatment for Dravet syndrome (the "Dravet Syndrome Program") and (ii) a second program to develop a treatment for another form of epilepsy to be determined by the Company subject to approval of a joint review committee comprised of representatives from both parties (the "Second Program"). The Collaboration Agreement also provides that the Company and Tevard may agree to collaborate on additional programs to develop therapies for other forms of epilepsy selected by the Company and subject to approval of the joint committee (each, a "Subsequent Program"). Under the Collaboration Agreement, Tevard will lead research and development activities until a program is transitioned to the Company based on a set of criteria established for each program.  After the transition of a program, the Company will lead continued development of the product candidates, including obtaining regulatory approval, and subsequently commercializing any approved products.
Under the terms of the Collaboration Agreement, Tevard has agreed to grant to the Company, as of the Effective Date, an exclusive, worldwide, sublicensable license to certain of Tevard's intellectual property rights, for the development, commercialization, manufacturing, use and sale of gene therapy products for the Dravet Syndrome Program (the "Dravet Products"), and an option to receive exclusive, worldwide, sublicensable licenses to certain of Tevard's intellectual property rights, for the development, commercialization, manufacturing, use and sale of gene therapy products from the Second Program and any Subsequent Program (together with the Dravet Products, the "Products"). Tevard retains all rights to a Product from the Second Program or any Subsequent Program if the Company does not exercise its option for that Product (such product, a "Tevard Product").
Certain Financial Terms
Under the terms of the Collaboration Agreement, the Company has agreed to pay Tevard an initial collaboration payment of $10.0 million (the "Initial Payment") within five business days after the Effective Date. The Initial Payment was partially offset by $4.8 million previously paid by the Company to Tevard pursuant to an existing option agreement related to the programs subject to the Collaboration Agreement.  Additionally, as described in greater detail below under the heading "Promissory Note," the Company has agreed to purchase a convertible promissory note (the "Promissory Note") from Tevard for $5.0 million in connection with entering into the Collaboration Agreement.  The Promissory Note will accrue interest at a rate of 3.50% per annum. The Promissory Note will mature on December 3, 2022 (the "Note Maturity Date"), unless converted into Tevard's common stock in connection with a specified Tevard financing. The Promissory Note may not be prepaid, in whole or in part, prior to the Note Maturity Date without the Company's consent.
The Company will fund all development costs incurred for the Dravet Syndrome Program and, upon the Company's exercise of its option for the Second Program, and each Subsequent Program, all the development costs incurred for such programs, including such costs for each program dating from the Effective Date though the Company's exercise of its option for such program.
The Collaboration Agreement provides for: (i) clinical development, regulatory and commercial milestone payments from the Company to Tevard of (i) up to $35.0 million in clinical development and regulatory milestone payments and $65.0 million in commercial milestone payments for the Dravet Syndrome Program; and (ii) up to $25.0 million in clinical development and regulatory milestone payments and $45.0 million in commercial milestone payments for the Second Program and each Subsequent Program.  The Company also agreed to pay an option exercise fee of $2.0 million to Tevard at the time the Company exercises its option under a Subsequent Program if the Subsequent Program is eligible for the Company to option prior to the fifth anniversary of the Effective Date (the "Research Term"). If a Subsequent Program becomes eligible for the Company to exercise its option after the Research Term, the option exercise fee is $0.5 million for such Subsequent Program.  The Company does not owe an option exercise fee when it exercises its options under the Dravet Syndrome Program or the Second Program.
Royalty Terms
The Company has also agreed to pay Tevard tiered royalties, based on future net sales of the Products licensed by the Company. Such royalty percentages, for net sales globally are: (i) a tiered rate ranging from the mid-single-digits to a percentage not to exceed 20% of annual net sales for the Dravet Products; and (ii) a tiered rate ranging from a mid- to high- single digit percentage of annual net sales for all other Products optioned by the Company. On a country-by-country and Product-by-Product basis, royalty payments would commence on the first commercial sale of a Product by the Company and terminate on the later of: (a) the expiration of patent based exclusivity of the Product in such country; (b) the expiration of
regulatory based exclusivity of the Product in such country; and (c) 10 years from the first commercial sale of the Product in such country (the "Royalty Term").  If the Company does not exercise its option for a Product and Tevard develops such Product as a Tevard Product, then Tevard shall pay the Company royalties based on future net sales of such Tevard Product.
Intellectual Property
Under the terms of the Collaboration Agreement and subject to specified exceptions therein, each party owns the entire right, title and interest in and to all intellectual property rights made solely by its employees or agents in the course of the collaboration. The parties jointly own all rights, title and interest in and to all intellectual property rights made or invented jointly by employees or agents of both parties.
Termination
Unless earlier terminated, the Collaboration Agreement expires on the later of: (i) the last to expire Royalty Term with respect to a Product in all countries; or (ii) the last to expire Tevard Royalty Term with respect to a Tevard Product in all countries. Either party may terminate the Collaboration Agreement for the other party's uncured material breach, insolvency or bankruptcy. The Company may terminate the Collaboration Agreement on a program-by-program basis by providing prior written notice to Tevard of: (i) 180 days if prior to the end of the Research Term; and (ii) 90 days if after the end of the Research Term. The Company may also terminate the Collaboration Agreement, subject to specified conditions, on a Product-by-Product or program-by-program basis if there a safety concern arises with respect to the product or program.
The foregoing description of the Collaboration Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Collaboration Agreement, a copy of which will be filed as exhibits to the Company's Annual Report on Form 10-K for the year ending December 31, 2020. The Company intends to redact certain portions of the Collaboration Agreement for confidentiality purposes.
SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
ZOGENIX, INC.
Date: December 8, 2020
By:
/s/ Shawnte M. Mitchell
Name:
Shawnte M. Mitchell
Title:
Executive Vice President, General Counsel and Secretary