Camber Capital Management LP

CIK

1444043

Location

BOSTON, MA

Portfolio Value

Mid $1,049,343,750

Diversification

Diversified

Filing Date

Global Rank

#1,627 / 7,998 ▼ 729 · as of Jun 2025

Top Industry

Healthcare Plans 23.9%

3Y Alpha vs SPY

-10.1%

Period ended 1 year ago

Filed Aug 14, 2025 · 11mo

22 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio

+35.3%

SPY

+76.0%

Annualised alpha

-10.1%

Max drawdown

−21.6%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

24 positions · as of Jun 30, 2025 · Δ vs Mar 31, 2025

Top Position

29.4%

−3.2 pts

Top 5

60.2%

−6.6 pts

Top 10

80.4%

−3.9 pts

HHI

1,232

Diversified−219

Portfolio Trend

22 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2025

Sector	% Portfolio	Value	Positions
Healthcare	70.6%	$740,418,750	23
Unclassified	29.4%	$308,925,000	1

Last Quarter's Activity

Export CSV

Jun 30, 2025 vs Mar 31, 2025

Added To

Positions the filer increased

1 positions

Ticker	Company	Δ Shares	Shares	Value	Open
BMRN	Biomarin Pharmaceutical Inc	+100,000	600,000	$32,982,000
No positions match the current search.

Trimmed

Positions the filer reduced

16 positions

Ticker	Company	Δ Shares	Shares	Value
PFE	Pfizer Inc	−7,800,000	1,500,000	$36,360,000
VTRS	Viatris Inc	−4,750,000	2,750,000	$24,557,500
BKD	Brookdale Senior Living Inc.	−4,100,000	2,150,000	$14,964,000
BAX	Baxter International Inc	−2,900,000	2,850,000	$86,298,000
EVH	Evolent Health, Inc.	−2,150,000	850,000	$9,571,000
ZBH	Zimmer Biomet Holdings, Inc.	−1,250,000	1,000,000	$91,210,000
CON	Concentra Group Holdings Parent, Inc.	−1,200,000	400,000	$8,228,000
CVS	CVS HEALTH Corp	−1,200,000	1,050,000	$72,429,000
SPY	Spdr S&P 500 ETF Trust	−1,000,000	500,000	$308,925,000
DNLI	Denali Therapeutics Inc.	−850,000	400,000	$5,596,000
ANAB	Anaptysbio, Inc	−625,000	125,000	$1,850,000
TBPH	Theravance Biopharma, Inc.	−550,000	450,000	$4,963,500
GMED	Globus Medical Inc	−450,000	800,000	$47,216,000
HUM	Humana Inc	−425,000	300,000	$73,344,000
MYGN	Myriad Genetics Inc	−350,000	2,000,000	$10,620,000
ASND	Ascendis Pharma A/S	−100,000	250,000	$43,150,000
No positions match the current search.

New Positions

Positions the filer opened this quarter

4 positions

Ticker	Company	Shares	Value
ICLR	Icon PLC	300,000	$43,635,000
MRK	Merck & Co., Inc.	500,000	$39,580,000
UNH	Unitedhealth Group Inc	100,000	$31,197,000
APLS	Apellis Pharmaceuticals, Inc.	850,000	$14,713,500
No positions match the current search.

Sold Out

Positions the filer fully exited

8 positions

Ticker	Company	Shares	Value
PTCT	Ptc Therapeutics, Inc.	1,500,000	$76,440,000
CI	Cigna Group	200,000	$65,800,000
SRPT	Sarepta Therapeutics, Inc.	800,000	$51,056,000
IONS	Ionis Pharmaceuticals Inc	725,000	$21,873,250
MLTX	MoonLake Immunotherapeutics	441,000	$17,229,870
TXG	10x Genomics, Inc.	1,000,000	$8,730,000
GPCR	Structure Therapeutics Inc.	300,000	$5,193,000
GMAB	Genmab A/S	50,000	$979,000
No positions match the current search.

Portfolio Positions

Compact Export CSV View 13F filing

24 positions · $1,049,343,750 total · as of Jun 30, 2025

All sectors Healthcare

Ticker	Company	Type	Shares	Δ Shares	Value (USD)	% Δ Value	% of Portfolio
SPY	Spdr S&P 500 ETF Trust	Reduced	500,000	-1,000,000	$308,925,000	−63.2%	29.44%
ZBH	Zimmer Biomet Holdings, Inc. Healthcare	Reduced	1,000,000	-1,250,000	$91,210,000	−64.2%	8.69%
BAX	Baxter International Inc Healthcare	Reduced	2,850,000	-2,900,000	$86,298,000	−56.2%	8.22%
HUM	Humana Inc Healthcare	Reduced	300,000	-425,000	$73,344,000	−61.8%	6.99%
CVS	CVS HEALTH Corp Healthcare	Reduced	1,050,000	-1,200,000	$72,429,000	−52.5%	6.90%
GMED	Globus Medical Inc Healthcare	Reduced	800,000	-450,000	$47,216,000	−48.4%	4.50%
ICLR	Icon PLC Healthcare	NEW	300,000	NEW	$43,635,000	NEW	4.16%
ASND	Ascendis Pharma A/S Healthcare	Reduced	250,000	-100,000	$43,150,000	−20.9%	4.11%
MRK	Merck & Co., Inc. Healthcare	NEW	500,000	NEW	$39,580,000	NEW	3.77%
GSK	GSK plc Healthcare	Held	1,000,000	0	$38,400,000	−0.9%	3.66%
PFE	Pfizer Inc Healthcare	Reduced	1,500,000	-7,800,000	$36,360,000	−84.6%	3.47%
BMRN	Biomarin Pharmaceutical Inc Healthcare	Added	600,000	+100,000	$32,982,000	−6.7%	3.14%
UNH	Unitedhealth Group Inc Healthcare	NEW	100,000	NEW	$31,197,000	NEW	2.97%
VTRS	Viatris Inc Healthcare	Reduced	2,750,000	-4,750,000	$24,557,500	−62.4%	2.34%
BKD	Brookdale Senior Living Inc. Healthcare	Reduced	2,150,000	-10,350,000	$14,964,000	−80.9%	1.43%
APLS	Apellis Pharmaceuticals, Inc. Healthcare	NEW	850,000	NEW	$14,713,500	NEW	1.40%
MYGN	Myriad Genetics Inc Healthcare	Reduced	2,000,000	-350,000	$10,620,000	−49.1%	1.01%
EVH	Evolent Health, Inc. Healthcare	Reduced	850,000	-2,150,000	$9,571,000	−66.3%	0.91%
CON	Concentra Group Holdings Parent, Inc. Healthcare	Reduced	400,000	-1,200,000	$8,228,000	−76.3%	0.78%
INGN	Inogen Inc Healthcare	Held	975,000	0	$6,854,250	−1.4%	0.65%
DNLI	Denali Therapeutics Inc. Healthcare	Reduced	400,000	-850,000	$5,596,000	−67.1%	0.53%
TBPH	Theravance Biopharma, Inc. Healthcare	Reduced	450,000	-550,000	$4,963,500	−44.4%	0.47%
OSUR	Orasure Technologies Inc Healthcare	Held	900,000	0	$2,700,000	−11.0%	0.26%
ANAB	Anaptysbio, Inc Healthcare	Reduced	125,000	-625,000	$1,850,000	−80.1%	0.18%