<SEC-DOCUMENT>0001646343-17-000008.txt : 20171114 <SEC-HEADER>0001646343-17-000008.hdr.sgml : 20171114 <ACCEPTANCE-DATETIME>20171114162016 ACCESSION NUMBER: 0001646343-17-000008 CONFORMED SUBMISSION TYPE: 13F-HR PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20170930 FILED AS OF DATE: 20171114 DATE AS OF CHANGE: 20171114 EFFECTIVENESS DATE: 20171114 FILER: COMPANY DATA: COMPANY CONFORMED NAME: NEXTHERA CAPITAL LP CENTRAL INDEX KEY: 0001646343 IRS NUMBER: 000000000 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 13F-HR SEC ACT: 1934 Act SEC FILE NUMBER: 028-17280 FILM NUMBER: 171201839 BUSINESS ADDRESS: STREET 1: 900 THIRD AVENUE STREET 2: SUITE 1100 CITY: NEW YORK STATE: NY ZIP: 10022 BUSINESS PHONE: (212) 213-7033 MAIL ADDRESS: STREET 1: 900 THIRD AVENUE STREET 2: SUITE 1100 CITY: NEW YORK STATE: NY ZIP: 10022 </SEC-HEADER> <DOCUMENT> <TYPE>13F-HR <SEQUENCE>1 <FILENAME>primary_doc.xml <TEXT> <XML> <?xml version="1.0" encoding="UTF-8"?> <edgarSubmission 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Inc</ns1:nameOfIssuer> <ns1:titleOfClass>COM</ns1:titleOfClass> <ns1:cusip>603380106</ns1:cusip> <ns1:value>4080</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>536899</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>536899</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> <ns1:infoTable> <ns1:nameOfIssuer>Paratek Pharmaceuticals Inc</ns1:nameOfIssuer> <ns1:titleOfClass>COM</ns1:titleOfClass> <ns1:cusip>699374302</ns1:cusip> <ns1:value>6082</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>242300</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>242300</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> <ns1:infoTable> <ns1:nameOfIssuer>Sangamo Therapeutics Inc</ns1:nameOfIssuer> <ns1:titleOfClass>COM</ns1:titleOfClass> <ns1:cusip>800677106</ns1:cusip> <ns1:value>11715</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>781000</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>781000</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> <ns1:infoTable> <ns1:nameOfIssuer>Seattle Genetics Inc</ns1:nameOfIssuer> <ns1:titleOfClass>COM</ns1:titleOfClass> <ns1:cusip>812578102</ns1:cusip> <ns1:value>20295</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>373000</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>373000</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> <ns1:infoTable> <ns1:nameOfIssuer>Shire PLC</ns1:nameOfIssuer> <ns1:titleOfClass>SPONSORED ADR</ns1:titleOfClass> <ns1:cusip>82481R106</ns1:cusip> <ns1:value>10666</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>69648</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>69648</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> <ns1:infoTable> <ns1:nameOfIssuer>SPDR S&P Biotech ETF</ns1:nameOfIssuer> <ns1:titleOfClass>S&P BIOTECH</ns1:titleOfClass> <ns1:cusip>78464A870</ns1:cusip> <ns1:value>129855</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>1500000</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:putCall>Put</ns1:putCall> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>1000000</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> <ns1:infoTable> <ns1:nameOfIssuer>SteadyMed Ltd</ns1:nameOfIssuer> <ns1:titleOfClass>SHS</ns1:titleOfClass> <ns1:cusip>M84920103</ns1:cusip> <ns1:value>867</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>258918</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>258918</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> <ns1:infoTable> <ns1:nameOfIssuer>Supernus Pharmaceuticals Inc</ns1:nameOfIssuer> <ns1:titleOfClass>SHS NEW</ns1:titleOfClass> <ns1:cusip>868459108</ns1:cusip> <ns1:value>5291</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>132270</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>132270</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> <ns1:infoTable> <ns1:nameOfIssuer>TESARO Inc</ns1:nameOfIssuer> <ns1:titleOfClass>COM</ns1:titleOfClass> <ns1:cusip>881569107</ns1:cusip> <ns1:value>6455</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>50000</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:putCall>Put</ns1:putCall> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>50000</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> <ns1:infoTable> <ns1:nameOfIssuer>Teva Pharmaceutical Industries</ns1:nameOfIssuer> <ns1:titleOfClass>SPONSORED ADR</ns1:titleOfClass> <ns1:cusip>881624209</ns1:cusip> <ns1:value>17600</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>1000000</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:putCall>Put</ns1:putCall> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>1000000</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> <ns1:infoTable> <ns1:nameOfIssuer>VistaGen Therapeutics Inc</ns1:nameOfIssuer> <ns1:titleOfClass>COM NEW</ns1:titleOfClass> <ns1:cusip>92840H202</ns1:cusip> <ns1:value>221</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>138132</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>138132</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> <ns1:infoTable> <ns1:nameOfIssuer>Zosano Pharma Corp</ns1:nameOfIssuer> <ns1:titleOfClass>COM</ns1:titleOfClass> <ns1:cusip>98979H103</ns1:cusip> <ns1:value>309</ns1:value> <ns1:shrsOrPrnAmt> <ns1:sshPrnamt>375809</ns1:sshPrnamt> <ns1:sshPrnamtType>SH</ns1:sshPrnamtType> </ns1:shrsOrPrnAmt> <ns1:investmentDiscretion>SOLE</ns1:investmentDiscretion> <ns1:votingAuthority> <ns1:Sole>375809</ns1:Sole> <ns1:Shared>0</ns1:Shared> <ns1:None>0</ns1:None> </ns1:votingAuthority> </ns1:infoTable> </ns1:informationTable> </XML> </TEXT> </DOCUMENT> </SEC-DOCUMENT>