Camber Capital Management LP

CIK 1444043 · View on SEC EDGAR ↗

Portfolio value
$1.1B
#2,347 of 9,443 by 13F value · top 24.9%
Positions
25
As of
June 30, 2025 Data as of Q2 2025

Portfolio value QoQ: -62.2% 13F does not disclose cash

Top 10 holdings weight
79.25%
Top 25 holdings weight
100.00%
Positions above 1%
18
Effective number of positions
8.3

Based on 13F long-equity holdings only (cash, bonds, shorts not disclosed)

Turnover Q2 2025: 6.94% Est. buys $134,622,500 · sells $1,696,327,370

New positions
4
Increased
1
Decreased
17
Closed
10

Put-notional exposure: 29.0% puts 13F reports option positions at underlying notional value — may include hedges, not necessarily bearish bets

On this page

Sector breakdown

Health Care
71.0%
Other/Unmapped
29.0%

Full portfolio 25 positions

Type Streak 8Q trend
SPY SPY $308,925,000 29.00% 500,000 Put option $-530,160,000 Down ×2
ZBH Zimmer Biomet Holdings, Inc. Common Stock $91,210,000 8.56% 1,000,000 $-163,445,000 Down ×1
BAX Baxter International Inc. Common Stock $86,298,000 8.10% 2,850,000 $-110,524,500 Down ×1
HUM Humana Inc. Common Stock $73,344,000 6.89% 300,000 $-118,491,000 Down ×1
CVS CVS Health Corporation Common Stock $72,429,000 6.80% 1,050,000 $-80,008,500 Down ×2
GMED Globus Medical, Inc. Class A Common Stock $47,216,000 4.43% 800,000 $-44,284,000 Down ×1
ICLR ICON plc - Ordinary Shares $43,635,000 4.10% 300,000 Up ×1
ASND Ascendis Pharma A/S - American Depositary Shares $43,150,000 4.05% 250,000 $-11,401,000 Down ×2
MRK Merck & Company, Inc. Common Stock (new) $39,580,000 3.72% 500,000 Up ×1
GSK GSK plc American Depositary Shares (Each representing two Ordinary Shares) $38,400,000 3.60% 1,000,000 Call option $-340,000
PFE Pfizer, Inc. Common Stock $36,360,000 3.41% 1,500,000 $-26,990,000 Down ×2
BMRN BioMarin Pharmaceutical Inc. - Common Stock $32,982,000 3.10% 600,000 $-2,363,000 Up ×2
UNH UnitedHealth Group Incorporated Common Stock (DE) $31,197,000 2.93% 100,000 Up ×1
VTRS Viatris Inc. - Common Stock $24,557,500 2.31% 2,750,000 $-40,767,500 Down ×2
BKD Brookdale Senior Living Inc. Common Stock $14,964,000 1.40% 2,150,000 $-24,161,000 Down ×2
ZIMV ZimVie Inc. - Common Stock $14,960,000 1.40% 1,600,000 $-5,398,000 Down ×2
APLS Apellis Pharmaceuticals, Inc. - Common Stock $14,713,500 1.38% 850,000 Up ×1
MYGN Myriad Genetics, Inc. - Common Stock $10,620,000 1.00% 2,000,000 $-10,224,500 Down ×2
EVH Evolent Health, Inc Class A Common Stock $9,571,000 0.90% 850,000 $-18,839,000 Down ×2
CON Concentra Group Holdings Parent, Inc. Common Stock $8,228,000 0.77% 400,000 $-26,492,000 Down ×2
INGN Inogen, Inc - Common Stock $6,854,250 0.64% 975,000 $-97,500
DNLI Denali Therapeutics Inc. - Common Stock $5,596,000 0.53% 400,000 $-11,397,750 Down ×2
TBPH Theravance Biopharma, Inc. - Ordinary Shares $4,963,500 0.47% 450,000 $-3,966,500 Down ×1
ANAB AnaptysBio, Inc. - Common Stock $2,775,000 0.26% 125,000 $-11,167,500 Down ×2
OSUR OraSure Technologies, Inc. - Common Stock $2,700,000 0.25% 900,000 $-333,000

Biggest new bets

New positions opened this quarter, largest first.

Security Value Shares % of portfolio
ICLR $43,635,000 300,000 4.10%
MRK $39,580,000 500,000 3.72%
UNH $31,197,000 100,000 2.93%
APLS $14,713,500 850,000 1.38%

Top movers (QoQ)

Security Action Shares Δ Value Δ
SPY Trimmed -1.0M -$530.2M
ZBH Trimmed -1.2M -$163.4M
HUM Trimmed -425K -$118.5M
BAX Trimmed -2.9M -$110.5M
CVS Trimmed -1.2M -$80.0M
GMED Trimmed -450K -$44.3M
VTRS Trimmed -4.8M -$40.8M
PFE Trimmed -1.0M -$27.0M
CON Trimmed -1.2M -$26.5M
BKD Trimmed -4.1M -$24.2M

Exited positions

Includes corporate events (mergers, delistings) — not all exits are sells

Closed positions reflect 13F reporting changes; for index managers these are often mechanical (delisting, M&A, index rebalancing), not active decisions.

SecurityQuarter Shares before Value before Price since exit
XBI June 30, 2025 2,000,000 $162,200,000 No longer tracked
PTCT June 30, 2025 1,500,000 $76,440,000 44.6%
CI June 30, 2025 200,000 $65,800,000 -16.3%
QGENXXXX June 30, 2025 1,400,000 $56,210,000 No longer tracked
SRPT June 30, 2025 800,000 $51,056,000 14.4%
IONS June 30, 2025 725,000 $21,873,250 51.6%
MLTX June 30, 2025 441,000 $17,229,870 -66.4%
TXG June 30, 2025 1,000,000 $8,730,000 438.1%
GPCR June 30, 2025 300,000 $5,193,000 145.2%
GMAB June 30, 2025 50,000 $979,000 62.3%
MDT March 31, 2025 2,750,000 $219,670 2.5%
JAZZ March 31, 2025 1,150,000 $141,623 101.7%
ALKS March 31, 2025 1,500,000 $43,140 45.6%
MEDP March 31, 2025 125,000 $41,529 99.9%
HLF March 31, 2025 3,000,000 $20,070 41.7%
BKDT March 31, 2025 250,000 $17,248 No longer tracked
MRUS March 31, 2025 250,000 $10,513 No longer tracked