<SEC-DOCUMENT>0001654954-21-012136.txt : 20211115
<SEC-HEADER>0001654954-21-012136.hdr.sgml : 20211115
<ACCEPTANCE-DATETIME>20211115090336
ACCESSION NUMBER: 0001654954-21-012136
CONFORMED SUBMISSION TYPE: 13F-HR
PUBLIC DOCUMENT COUNT: 2
CONFORMED PERIOD OF REPORT: 20210930
FILED AS OF DATE: 20211115
DATE AS OF CHANGE: 20211115
EFFECTIVENESS DATE: 20211115
FILER:
COMPANY DATA:
COMPANY CONFORMED NAME: Camber Capital Management LP
CENTRAL INDEX KEY: 0001444043
IRS NUMBER: 421693587
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 13F-HR
SEC ACT: 1934 Act
SEC FILE NUMBER: 028-13745
FILM NUMBER: 211406730
BUSINESS ADDRESS:
STREET 1: 101 HUNTINGTON AVENUE
STREET 2: SUITE 2101
CITY: BOSTON
STATE: MA
ZIP: 02199
BUSINESS PHONE: 617-717-6600
MAIL ADDRESS:
STREET 1: 101 HUNTINGTON AVENUE
STREET 2: SUITE 2101
CITY: BOSTON
STATE: MA
ZIP: 02199
FORMER COMPANY:
FORMER CONFORMED NAME: Camber Capital Management LLC
DATE OF NAME CHANGE: 20080827
</SEC-HEADER>
<DOCUMENT>
<TYPE>13F-HR
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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<liveTestFlag>LIVE</liveTestFlag>
<filer>
<credentials>
<cik>0001444043</cik>
<ccc>XXXXXXXX</ccc>
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<periodOfReport>09-30-2021</periodOfReport>
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<formData>
<coverPage>
<reportCalendarOrQuarter>09-30-2021</reportCalendarOrQuarter>
<isAmendment>false</isAmendment>
<filingManager>
<name>Camber Capital Management LP</name>
<address>
<common:street1>101 HUNTINGTON AVENUE</common:street1>
<common:street2>SUITE 2101</common:street2>
<common:city>BOSTON</common:city>
<common:stateOrCountry>MA</common:stateOrCountry>
<common:zipCode>02199</common:zipCode>
</address>
</filingManager>
<reportType>13F HOLDINGS REPORT</reportType>
<form13FFileNumber>028-13745</form13FFileNumber>
<provideInfoForInstruction5>N</provideInfoForInstruction5>
</coverPage>
<signatureBlock>
<name>Stephen DuBois</name>
<title>Managing Member</title>
<phone>617-717-6600</phone>
<signature>/s/ Stephen DuBois</signature>
<city>Boston</city>
<stateOrCountry>MA</stateOrCountry>
<signatureDate>11-15-2021</signatureDate>
</signatureBlock>
<summaryPage>
<otherIncludedManagersCount>0</otherIncludedManagersCount>
<tableEntryTotal>39</tableEntryTotal>
<tableValueTotal>3247549</tableValueTotal>
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<DOCUMENT>
<TYPE>INFORMATION TABLE
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<nameOfIssuer>ALKERMES PLC</nameOfIssuer>
<titleOfClass>SHS</titleOfClass>
<cusip>G01767105</cusip>
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<value>90090</value>
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<putCall>Call</putCall>
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<nameOfIssuer>GILEAD SCIENCES INC</nameOfIssuer>
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<cusip>375558103</cusip>
<value>76835</value>
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<sshPrnamt>1100000</sshPrnamt>
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<value>104775</value>
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<sshPrnamt>1500000</sshPrnamt>
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<putCall>Call</putCall>
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<votingAuthority>
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<nameOfIssuer>GLAXOSMITHKLINE PLC</nameOfIssuer>
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<cusip>37733W105</cusip>
<value>105078</value>
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<investmentDiscretion>SOLE</investmentDiscretion>
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<Sole>2750000</Sole>
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<nameOfIssuer>HCA HEALTHCARE INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>40412C101</cusip>
<value>108617</value>
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<sshPrnamt>447500</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
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<Sole>447500</Sole>
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<None>0</None>
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<nameOfIssuer>INNOVAGE HLDG CORP</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>45784A104</cusip>
<value>6610</value>
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<sshPrnamt>1000000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
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<None>0</None>
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<nameOfIssuer>IONIS PHARMACEUTICALS INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>462222100</cusip>
<value>83850</value>
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<sshPrnamt>2500000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
<Sole>2500000</Sole>
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<nameOfIssuer>IRHYTHM TECHNOLOGIES INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>450056106</cusip>
<value>27816</value>
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<sshPrnamt>475000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
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<Sole>475000</Sole>
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<nameOfIssuer>IRONWOOD PHARMACEUTICALS INC</nameOfIssuer>
<titleOfClass>COM CL A</titleOfClass>
<cusip>46333X108</cusip>
<value>71830</value>
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<sshPrnamt>5500000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
<Sole>5500000</Sole>
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<nameOfIssuer>MERCK & CO INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>58933Y105</cusip>
<value>112665</value>
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<sshPrnamt>1500000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
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<Sole>1500000</Sole>
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<nameOfIssuer>MERCK & CO INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>58933Y105</cusip>
<value>150220</value>
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<sshPrnamt>2000000</sshPrnamt>
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<putCall>Call</putCall>
<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
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<nameOfIssuer>MIRATI THERAPEUTICS INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>60468T105</cusip>
<value>79610</value>
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<sshPrnamt>450000</sshPrnamt>
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<titleOfClass>COM</titleOfClass>
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<value>88798</value>
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<sshPrnamt>2750000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
<Sole>2750000</Sole>
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<nameOfIssuer>NEKTAR THERAPEUTICS</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>640268108</cusip>
<value>67350</value>
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<sshPrnamt>3750000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
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<Sole>3750000</Sole>
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<nameOfIssuer>NOVARTIS AG</nameOfIssuer>
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<value>163560</value>
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<putCall>Call</putCall>
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<nameOfIssuer>ORASURE TECHNOLOGIES INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>68554V108</cusip>
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<titleOfClass>SHS</titleOfClass>
<cusip>G97822103</cusip>
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<sshPrnamt>2500000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
<Sole>2500000</Sole>
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<nameOfIssuer>PTC THERAPEUTICS INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>69366J200</cusip>
<value>27908</value>
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<sshPrnamt>750000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
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<titleOfClass>COM</titleOfClass>
<cusip>74587V107</cusip>
<value>24009</value>
<shrsOrPrnAmt>
<sshPrnamt>3425000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
<Sole>3425000</Sole>
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<None>0</None>
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<nameOfIssuer>RADIUS HEALTH INC</nameOfIssuer>
<titleOfClass>COM NEW</titleOfClass>
<cusip>750469207</cusip>
<value>18615</value>
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<sshPrnamt>1500000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
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<titleOfClass>CL A</titleOfClass>
<cusip>75615P103</cusip>
<value>68918</value>
<shrsOrPrnAmt>
<sshPrnamt>685000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
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<cusip>80105N105</cusip>
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<investmentDiscretion>SOLE</investmentDiscretion>
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<nameOfIssuer>SANOFI</nameOfIssuer>
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<cusip>80105N105</cusip>
<value>48210</value>
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<sshPrnamt>1000000</sshPrnamt>
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<putCall>Call</putCall>
<investmentDiscretion>SOLE</investmentDiscretion>
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<None>0</None>
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<nameOfIssuer>SAREPTA THERAPEUTICS INC</nameOfIssuer>
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<value>46240</value>
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<sshPrnamt>500000</sshPrnamt>
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<nameOfIssuer>TENET HEALTHCARE CORP</nameOfIssuer>
<titleOfClass>COM NEW</titleOfClass>
<cusip>88033G407</cusip>
<value>182710</value>
<shrsOrPrnAmt>
<sshPrnamt>2750000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
<Sole>2750000</Sole>
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<None>0</None>
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<nameOfIssuer>TEVA PHARMACEUTICAL INDS LTD</nameOfIssuer>
<titleOfClass>SPONSORED ADS</titleOfClass>
<cusip>881624209</cusip>
<value>48700</value>
<shrsOrPrnAmt>
<sshPrnamt>5000000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
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<nameOfIssuer>THERAVANCE BIOPHARMA INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>G8807B106</cusip>
<value>18500</value>
<shrsOrPrnAmt>
<sshPrnamt>2500000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
<Sole>2500000</Sole>
<Shared>0</Shared>
<None>0</None>
</votingAuthority>
</infoTable>
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<nameOfIssuer>UNIVERSAL HLTH SVCS INC</nameOfIssuer>
<titleOfClass>CL B</titleOfClass>
<cusip>913903100</cusip>
<value>200637</value>
<shrsOrPrnAmt>
<sshPrnamt>1450000</sshPrnamt>
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<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
<Sole>1450000</Sole>
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<None>0</None>
</votingAuthority>
</infoTable>
<infoTable>
<nameOfIssuer>VIATRIS INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>92556V106</cusip>
<value>162600</value>
<shrsOrPrnAmt>
<sshPrnamt>12000000</sshPrnamt>
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</shrsOrPrnAmt>
<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
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<None>0</None>
</votingAuthority>
</infoTable>
<infoTable>
<nameOfIssuer>WALGREENS BOOTS ALLIANCE INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>931427108</cusip>
<value>188200</value>
<shrsOrPrnAmt>
<sshPrnamt>4000000</sshPrnamt>
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</shrsOrPrnAmt>
<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
<Sole>4000000</Sole>
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</votingAuthority>
</infoTable>
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<nameOfIssuer>ZIMMER BIOMET HOLDINGS INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>98956P102</cusip>
<value>106124</value>
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<sshPrnamtType>SH</sshPrnamtType>
</shrsOrPrnAmt>
<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
<Sole>725090</Sole>
<Shared>0</Shared>
<None>0</None>
</votingAuthority>
</infoTable>
<infoTable>
<nameOfIssuer>ZYMEWORKS INC</nameOfIssuer>
<titleOfClass>COM</titleOfClass>
<cusip>98985W102</cusip>
<value>21780</value>
<shrsOrPrnAmt>
<sshPrnamt>750000</sshPrnamt>
<sshPrnamtType>SH</sshPrnamtType>
</shrsOrPrnAmt>
<investmentDiscretion>SOLE</investmentDiscretion>
<votingAuthority>
<Sole>750000</Sole>
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<None>0</None>
</votingAuthority>
</infoTable>
</informationTable>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>