Camber Capital Management LP

BOSTON, MA · CIK 1444043 · 13F filing filed 2025-08-14

No investment adviser registration (Form ADV) found for this filer. It may be a parent company whose subsidiaries are the registered advisers, a bank or insurer, or a manager based outside the US.

Legal entityCAMBER CAPITAL MANAGEMENT LP (US)

Others nearbyBoston, MA

$717.9m reported value -55.2% vs Q1 2025

23positions

78.9%in top 10

4 new 1 added 16 reduced 9 sold out vs Q1 2025

Options: 1 call positions ($38.4m notional), 1 put positions ($308.9m notional) – listed below, not included above.

Holdings, Q2 2025

The small lines show how much was held over the last 4 quarters (adjusted for stock splits).

#	Security	Ticker	Shares	Value	% of portfolio	Change	Shares change
1	ZIMMER BIOMET HOLDINGS INC COM ZBH	ZBH	1,000,000	$91.2m12.71%	12.71%	Reduced -1.2m	-1,250,000 -55.6%
2	BAXTER INTL INC COM BAX	BAX	2,850,000	$86.3m12.02%	12.02%	Reduced -2.9m	-2,900,000 -50.4%
3	HUMANA INC COM HUM	HUM	300,000	$73.3m10.22%	10.22%	Reduced -425.0k	-425,000 -58.6%
4	CVS HEALTH CORP COM CVS	CVS	1,050,000	$72.4m10.09%	10.09%	Reduced -1.2m	-1,200,000 -53.3%
5	GLOBUS MED INC CL A GMED	GMED	800,000	$47.2m6.58%	6.58%	Reduced -450.0k	-450,000 -36.0%
6	ICON PLC SHS ICLR	ICLR	300,000	$43.6m6.08%	6.08%	New
7	ASCENDIS PHARMA A/S SPONSORED ADR SPONSORED ADR		250,000	$43.1m6.01%	6.01%	Reduced -100.0k	-100,000 -28.6%
8	MERCK & CO INC COM MRK	MRK	500,000	$39.6m5.51%	5.51%	New
9	PFIZER INC COM PFE	PFE	1,500,000	$36.4m5.06%	5.06%	Reduced -1.0m	-1,000,000 -40.0%
10	BIOMARIN PHARMACEUTICAL INC COM BMRN	BMRN	600,000	$33.0m4.59%	4.59%	Added +100.0k	+100,000 20.0%
11	UNITEDHEALTH GROUP INC COM UNH	UNH	100,000	$31.2m4.35%	4.35%	New
12	VIATRIS INC COM VTRS	VTRS	2,750,000	$24.6m3.42%	3.42%	Reduced -4.8m	-4,750,000 -63.3%
13	BROOKDALE SR LIVING INC COM BKD	BKD	2,150,000	$15.0m2.08%	2.08%	Reduced -4.1m	-4,100,000 -65.6%
14	ZIMVIE INC COM ZIMV	ZIMV	1,600,000	$15.0m2.08%	2.08%	Reduced -285.0k	-285,000 -15.1%
15	APELLIS PHARMACEUTICALS INC COM APLS	APLS	850,000	$14.7m2.05%	2.05%	New
16	MYRIAD GENETICS INC COM MYGN	MYGN	2,000,000	$10.6m1.48%	1.48%	Reduced -350.0k	-350,000 -14.9%
17	EVOLENT HEALTH INC CL A EVH	EVH	850,000	$9.6m1.33%	1.33%	Reduced -2.1m	-2,150,000 -71.7%
18	CONCENTRA GROUP HOLDINGS PAR COMMON STOCK CON	CON	400,000	$8.2m1.15%	1.15%	Reduced -1.2m	-1,200,000 -75.0%
19	INOGEN INC COM INGN	INGN	975,000	$6.9m0.95%	0.95%	Unchanged
20	DENALI THERAPEUTICS INC COM DNLI	DNLI	400,000	$5.6m0.78%	0.78%	Reduced -850.0k	-850,000 -68.0%
21	THERAVANCE BIOPHARMA INC COM 0TB	0TB	450,000	$5.0m0.69%	0.69%	Reduced -550.0k	-550,000 -55.0%
22	ANAPTYSBIO INC COM ANAB	ANAB	125,000	$2.8m0.39%	0.39%	Reduced -625.0k	-625,000 -83.3%
23	ORASURE TECHNOLOGIES INC COM OSUR	OSUR	900,000	$2.7m0.38%	0.38%	Unchanged

Sold out since Q1 2025

Security	Ticker	Shares held before	Value then
PTC THERAPEUTICS INC PTCT	PTCT	1,500,000	$76.4m1.5m shares
THE CIGNA GROUP CI	CI	200,000	$65.8m200.0k shares
QIAGEN NV QGEN	QGEN	1,400,000	$56.2m1.4m shares
SAREPTA THERAPEUTICS INC SRPT	SRPT	800,000	$51.1m800.0k shares
IONIS PHARMACEUTICALS INC IONS	IONS	725,000	$21.9m725.0k shares
MOONLAKE IMMUNOTHERAPEUTICS MLTX	MLTX	441,000	$17.2m441.0k shares
10X GENOMICS INC TXG	TXG	1,000,000	$8.7m1.0m shares
STRUCTURE THERAPEUTICS INC GPCR	GPCR	300,000	$5.2m300.0k shares
GENMAB A/S GMAB	GMAB	50,000	$979.0k50.0k shares

Options (notional value)

Underlying	Ticker	Type	Shares controlled	Notional	Change
SPDR S&P 500 ETF TR SPY · Put	SPY	Put	500,000	$308.9m500.0k shares	Reduced
GSK PLC GSK · Call	GSK	Call	1,000,000	$38.4m1.0m shares	Unchanged