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Camber Capital Management LP

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13F filer, CIK 1444043, BOSTON, MA

Camber Capital Management LP reported $3,923,913,000 across 38 holdings for the quarter ended 2023-12-31, in a 13F-HR filed 2024-02-14. Its ten largest share positions make up 66.68% of the portfolio.

Filed (acceptance time not in the bulk data set), ingested 13F-HR 0001654954-24-001698

Period
2023-12-31
Reported value
$3.92B
Holdings
38
Top 10 weight
66.68%
New
6
Sold out
8

Largest buys vs the previous quarter

SecurityShares changeApprox. value
JAZZnew+675,000$83M
BAXadded+2,000,000$77.3M
WALGREENS BOOTS ALLIANCE INCadded+1,800,000$47M
RAREnew+900,000$43M
MDTadded+350,000$28.8M

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
SNYexited-2,750,000-$148M
TEVAexited-10,150,000-$104M
IONSreduced-1,385,000-$70.1M
MIRATI THERAPEUTICS INCexited-1,500,000-$65.3M
XRAYexited-1,765,000-$60.3M

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, Q4 2023

Share positions as resolved from 13F-HR 0001654954-24-001698, largest first. % of portfolio is the value over $2,860,436,000, 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; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,000,000 shares; 2023Q4: 1,870,000 shares 1,870,000$285M9.97%-130,000Timeline
THCTENET HEALTHCARE CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,650,000 shares; 2023Q4: 3,745,000 shares 3,745,000$283M9.89%+95,000Timeline
ZBHZIMMER BIOMET HOLDINGS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,850,000 shares; 2023Q4: 1,925,000 shares 1,925,000$234M8.19%+75,000Timeline
VTRSVIATRIS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 20,000,000 shares; 2023Q4: 18,500,000 shares 18,500,000$200M7%-1,500,000Timeline
BAXBAXTER INTL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,000,000 shares; 2023Q4: 5,000,000 shares 5,000,000$193M6.76%+2,000,000Timeline
WALGREENS BOOTS ALLIANCE INCWALGREENS BOOTS ALLIANCE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 5,200,000 shares; 2023Q4: 7,000,000 shares 7,000,000$183M6.39%+1,800,000
MDTMEDTRONIC PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,500,000 shares; 2023Q4: 1,850,000 shares 1,850,000$152M5.33%+350,000Timeline
MYGNMYRIAD GENETICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 6,635,000 shares; 2023Q4: 7,635,000 shares 7,635,000$146M5.11%+1,000,000Timeline
GMEDGLOBUS MED INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,725,000 shares; 2023Q4: 2,250,000 shares 2,250,000$120M4.19%+525,000Timeline
PTCTPTC THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,400,000 shares; 2023Q4: 4,000,000 shares 4,000,000$110M3.85%+600,000Timeline
BKDBROOKDALE SR LIVING INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 18,000,000 shares; 2023Q4: 15,500,000 shares 15,500,000$90.2M3.15%-2,500,000Timeline
JAZZJAZZ PHARMACEUTICALS PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: not reported; 2023Q4: 675,000 shares 675,000$83M2.9%newTimeline
GSKGSK PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,850,000 shares; 2023Q4: 2,175,000 shares 2,175,000$80.6M2.82%-675,000Timeline
SEMSELECT MED HLDGS CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,400,000 shares; 2023Q4: 3,400,000 shares 3,400,000$79.9M2.79%0Timeline
SRPTSAREPTA THERAPEUTICS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 800,000 shares; 2023Q4: 800,000 shares 800,000$77.1M2.7%0Timeline
PRGOPERRIGO CO PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,850,000 shares; 2023Q4: 1,850,000 shares 1,850,000$59.5M2.08%0Timeline
ZIMVIE INCZIMVIE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 3,250,000 shares; 2023Q4: 3,250,000 shares 3,250,000$57.7M2.02%0
IONSIONIS PHARMACEUTICALS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,250,000 shares; 2023Q4: 865,000 shares 865,000$43.8M1.53%-1,385,000Timeline
RAREULTRAGENYX PHARMACEUTICAL INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: not reported; 2023Q4: 900,000 shares 900,000$43M1.5%newTimeline
OSURORASURE TECHNOLOGIES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 4,250,000 shares; 2023Q4: 4,250,000 shares 4,250,000$34.9M1.22%0Timeline
COLLCOLLEGIUM PHARMACEUTICAL INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,050,000 shares; 2023Q4: 1,050,000 shares 1,050,000$32.3M1.13%0Timeline
HLFHERBALIFE LTDQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,850,000 shares; 2023Q4: 2,000,000 shares 2,000,000$30.5M1.07%-850,000Timeline
QDELQUIDELORTHO CORPQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 325,000 shares; 2023Q4: 400,000 shares 400,000$29.5M1.03%+75,000Timeline
PTONPELOTON INTERACTIVE INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 4,500,000 shares; 2023Q4: 4,500,000 shares 4,500,000$27.4M0.96%0Timeline
QIAGEN NVQIAGEN NVQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 400,000 shares; 2023Q4: 615,000 shares 615,000$26.7M0.93%+215,000
MRNAMODERNA INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: not reported; 2023Q4: 250,000 shares 250,000$24.9M0.87%newTimeline
HRMYHARMONY BIOSCIENCES HLDGS INQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: not reported; 2023Q4: 750,000 shares 750,000$24.2M0.85%newTimeline
ASNDASCENDIS PHARMA A/SQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: not reported; 2023Q4: 165,000 shares 165,000$20.8M0.73%newTimeline
BROOKDALE SR LIVING INCBROOKDALE SR LIVING INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 250,000 shares; 2023Q4: 250,000 shares 250,000$20.3M0.71%0
PBYIPUMA BIOTECHNOLOGY INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 4,235,000 shares; 2023Q4: 2,805,000 shares 2,805,000$12.1M0.42%-1,430,000Timeline
INGNINOGEN INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,000,000 shares; 2023Q4: 2,000,000 shares 2,000,000$11M0.38%0Timeline
SKINSKINHEALTH SYSTEMS INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 5,000,000 shares; 2023Q4: 3,500,000 shares 3,500,000$10.9M0.38%-1,500,000Timeline
SLDBSOLID BIOSCIENCES INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,418,439 shares; 2023Q4: 1,418,439 shares 1,418,439$8.71M0.3%0Timeline
REPLREPLIMUNE GROUP INCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 2,000,000 shares; 2023Q4: 1,000,000 shares 1,000,000$8.43M0.29%-1,000,000Timeline
BCYCBICYCLE THERAPEUTICS PLCQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 400,000 shares; 2023Q4: 450,000 shares 450,000$8.14M0.28%+50,000Timeline
CUREVAC N VCUREVAC N VQuarterly shares; oldest to newest; scale is this security's eight-quarter maximum; 2022Q1: restricted; 2022Q2: restricted; 2022Q3: restricted; 2022Q4: restricted; 2023Q1: restricted; 2023Q2: restricted; 2023Q3: 1,750,000 shares; 2023Q4: 1,750,000 shares 1,750,000$7.37M0.26%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
SPYSTATE STR SPDR S&P 500 ETF T SHSput2,000,000$951Mnew
PFEPFIZER INC COMcall3,920,000$113M-3,580,000

Sold out in Q4 2023

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

SecurityShares beforeValue beforeType
SNYSANOFI SA2,750,000$148Mshares
TEVATEVA PHARMACEUTICAL INDS LTD10,150,000$104Mshares
MIRATI THERAPEUTICS INCMIRATI THERAPEUTICS INC1,500,000$65.3Mshares
XRAYDENTSPLY SIRONA INC1,765,000$60.3Mshares
QTRXQUANTERIX CORP1,275,000$34.6Mshares
BMRNBIOMARIN PHARMACEUTICAL INC300,000$26.5Mshares
EXELEXELIXIS INC300,000$6.55Mshares
CANO HEALTH INCCANO HEALTH INC4,000,000$1.01Mshares

How Q4 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 0001654954-24-001698 base2024-02-14acceptance time not in the bulk data set