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Camber Capital Management LP

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13F filer, CIK 1444043, BOSTON, MA

Camber Capital Management LP reported $3,033,827,000 across 40 holdings for the quarter ended 2023-09-30, in a 13F-HR filed 2023-11-14. Its ten largest share positions make up 57.47% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001654954-23-014248

Period
2023-09-30
Reported value
$3.03B
Holdings
40
Top 10 weight
57.47%
New
5
Sold out
3

Largest buys vs the previous quarter

SecurityShares changeApprox. value
ZBHadded+800,000$89.8M
MDTadded+900,000$70.5M
SRPTadded+400,000$48.5M
GMEDadded+725,000$36M
THCadded+450,000$29.7M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Largest sells vs the previous quarter

SecurityShares changeApprox. value
SNYreduced-1,250,000-$67M
QTRXreduced-2,150,000-$58.4M
WALGREENS BOOTS ALLIANCE INCreduced-2,300,000-$51.2M
GSKreduced-1,250,000-$45.3M
EXELreduced-1,250,000-$27.3M

Ranked by the share change valued at this quarter's implied price (value over shares in the 13F). A position sold out is valued at the previous quarter's price, its last report.

Holdings, Q3 2023

Share positions as resolved from 13F-HR 0001654954-23-014248, largest first. % of portfolio is the value over $2,785,052,000, the sum of the share positions whose value is usable for ratios (method).

SecurityHistorySharesValue% of portfolioChangeLatest eventTimeline
UHSUNIVERSAL HLTH SVCS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,000,000 shares 2,000,000$251M9.03%+75,000Timeline
THCTENET HEALTHCARE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,650,000 shares 3,650,000$240M8.64%+450,000Timeline
ZBHZIMMER BIOMET HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,850,000 shares 1,850,000$208M7.45%+800,000Timeline
VTRSVIATRIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 20,000,000 shares 20,000,000$197M7.08%-2,500,000Timeline
SNYSANOFI SAQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,750,000 shares 2,750,000$148M5.3%-1,250,000Timeline
MDTMEDTRONIC PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,500,000 shares 1,500,000$118M4.22%+900,000Timeline
WALGREENS BOOTS ALLIANCE INCWALGREENS BOOTS ALLIANCE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 5,200,000 shares 5,200,000$116M4.15%-2,300,000
BAXBAXTER INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,000,000 shares 3,000,000$113M4.07%0Timeline
MYGNMYRIAD GENETICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 6,635,000 shares 6,635,000$106M3.82%0Timeline
TEVATEVA PHARMACEUTICAL INDS LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 10,150,000 shares 10,150,000$104M3.72%+1,650,000Timeline
GSKGSK PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,850,000 shares 2,850,000$103M3.71%-1,250,000Timeline
IONSIONIS PHARMACEUTICALS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,250,000 shares 2,250,000$102M3.66%-250,000Timeline
SRPTSAREPTA THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 800,000 shares 800,000$97M3.48%+400,000Timeline
SEMSELECT MED HLDGS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,400,000 shares 3,400,000$85.9M3.08%-650,000Timeline
GMEDGLOBUS MED INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,725,000 shares 1,725,000$85.6M3.08%+725,000Timeline
PTCTPTC THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,400,000 shares 3,400,000$76.2M2.74%+900,000Timeline
BKDBROOKDALE SR LIVING INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 18,000,000 shares 18,000,000$74.5M2.68%0Timeline
MIRATI THERAPEUTICS INCMIRATI THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,500,000 shares 1,500,000$65.3M2.35%-300,000
XRAYDENTSPLY SIRONA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,765,000 shares 1,765,000$60.3M2.16%0Timeline
PRGOPERRIGO CO PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,850,000 shares 1,850,000$59.1M2.12%-650,000Timeline
HLFHERBALIFE LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,850,000 shares 2,850,000$39.9M1.43%+100,000Timeline
QTRXQUANTERIX CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,275,000 shares 1,275,000$34.6M1.24%-2,150,000Timeline
REPLREPLIMUNE GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,000,000 shares 2,000,000$34.2M1.23%+450,000Timeline
ZIMVIE INCZIMVIE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,250,000 shares 3,250,000$30.6M1.1%0
SKINSKINHEALTH SYSTEMS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 5,000,000 shares 5,000,000$30.1M1.08%+3,250,000Timeline
BMRNBIOMARIN PHARMACEUTICAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 300,000 shares 300,000$26.5M0.95%newTimeline
OSURORASURE TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 4,250,000 shares 4,250,000$25.2M0.9%0Timeline
QDELQUIDELORTHO CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 325,000 shares 325,000$23.7M0.85%newTimeline
COLLCOLLEGIUM PHARMACEUTICAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,050,000 shares 1,050,000$23.5M0.84%0Timeline
PTONPELOTON INTERACTIVE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 4,500,000 shares 4,500,000$22.7M0.82%+1,500,000Timeline
QIAGEN NVQIAGEN NVQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 400,000 shares 400,000$16.2M0.58%new
BROOKDALE SR LIVING INCBROOKDALE SR LIVING INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 250,000 shares 250,000$15.1M0.54%0
CUREVAC N VCUREVAC N VQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,750,000 shares 1,750,000$12M0.43%+287,500
PBYIPUMA BIOTECHNOLOGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 4,235,000 shares 4,235,000$11.1M0.4%0Timeline
INGNINOGEN INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,000,000 shares 2,000,000$10.4M0.37%+850,000Timeline
BCYCBICYCLE THERAPEUTICS PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 400,000 shares 400,000$8.04M0.29%newTimeline
EXELEXELIXIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 300,000 shares 300,000$6.55M0.24%-1,250,000Timeline
SLDBSOLID BIOSCIENCES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,418,439 shares 1,418,439$3.57M0.13%0Timeline
CANO HEALTH INCCANO HEALTH INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2021Q4: restricted; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 4,000,000 shares 4,000,000$1.01M0.04%0

Options

Puts and calls, as filed. The amount and value describe the underlying shares, not the option premium, so they stay out of % of portfolio (H5).

SecurityTypeAmountValueChange
PFEPFIZER INC COMcall7,500,000$249Mnew

Sold out in Q3 2023

Positions in the previous quarter's report that this quarter's report no longer lists.

SecurityShares beforeValue beforeType
CNCCENTENE CORP DEL400,000$27Mshares
GKOSGLAUKOS CORP160,000$11.4Mshares
DVAXDYNAVAX TECHNOLOGIES CORP300,000$3.88Mshares

How Q3 2023 was built

Available 13F filings of this filer for the quarter and their roles: the base report is the latest original or restatement, NEW HOLDINGS amendments filed after it are added (method).

FilingRoleAmendmentFiledAcceptedIngested
13F-HR 0001654954-23-014248 base2023-11-14acceptance time not in the bulk data set