Institutional Manager · CIK 0001444043
Camber Capital Management LP
BOSTON, MA · File #028-13745
Latest AUM
$1.07B
Positions
25
Top-10 Concentration
79.2%
Filings
7
Portfolio Value Over Time
2023-12
2024-03
2024-06
2024-09
2024-12
2025-03
2025-06
Biggest QoQ Changes
Ranked by conviction flow (share change × current price) so mark-to-market moves don't dominate. Price effect column shows how much of the $ change was just the stock moving.
| Action | Issuer | Ticker / CUSIP | Δ Shares | Flow ($) | Price Effect |
|---|---|---|---|---|---|
| REDUCE | SPDR S&P 500 ETF TR | 78462F103 | -1,000,000 | -$617.9M | +$87.7M |
| EXITED | SPDR SER TR | 78464A870 | -2,000,000 | -$162.2M | $0 |
| REDUCE | PFIZER INC | 717081103 | -5,300,000 | -$128.5M | -$7.5M |
| REDUCE | ZIMMER BIOMET HOLDINGS INC | 98956P102 | -1,250,000 | -$114.0M | -$49.4M |
| REDUCE | HUMANA INC | 444859102 | -425,000 | -$103.9M | -$14.6M |
| REDUCE | BAXTER INTL INC | 071813109 | -2,900,000 | -$87.8M | -$22.7M |
| REDUCE | CVS HEALTH CORP | 126650100 | -1,200,000 | -$82.8M | +$2.8M |
| EXITED | PTC THERAPEUTICS INC | 69366J200 | -1,500,000 | -$76.4M | $0 |
| EXITED | THE CIGNA GROUP | 125523100 | -200,000 | -$65.8M | $0 |
| EXITED | QIAGEN NV | N72482206 | -1,400,000 | -$56.2M | $0 |
Filing History
- 13F HOLDINGS REPORTQ/E Jun 202525 pos · $1.07B
- 13F HOLDINGS REPORTQ/E Mar 202532 pos · $2.81B
- 13F HOLDINGS REPORTQ/E Dec 202439 pos · $4.3M
- 13F HOLDINGS REPORTQ/E Sep 202433 pos · $3.1M
- 13F HOLDINGS REPORTQ/E Jun 202437 pos · $3.6M
- 13F HOLDINGS REPORTQ/E Mar 202436 pos · $4.1M
- 13F HOLDINGS REPORTQ/E Dec 202340 pos · $3.0M
Top 20 Holdings — Jun 2025
| # | Issuer | Ticker | Shares | Value | % of Portfolio |
|---|---|---|---|---|---|
| 1 | SPDR S&P 500 ETF TR | 78462F103 | 500,000 | $308.9M | 29.00% |
| 2 | ZIMMER BIOMET HOLDINGS INC | 98956P102 | 1,000,000 | $91.2M | 8.56% |
| 3 | BAXTER INTL INC | 071813109 | 2,850,000 | $86.3M | 8.10% |
| 4 | HUMANA INC | 444859102 | 300,000 | $73.3M | 6.89% |
| 5 | CVS HEALTH CORP | 126650100 | 1,050,000 | $72.4M | 6.80% |
| 6 | GLOBUS MED INC | 379577208 | 800,000 | $47.2M | 4.43% |
| 7 | ICON PLC | G4705A100 | 300,000 | $43.6M | 4.10% |
| 8 | ASCENDIS PHARMA A/S | 04351P101 | 250,000 | $43.1M | 4.05% |
| 9 | MERCK & CO INC | 58933Y105 | 500,000 | $39.6M | 3.72% |
| 10 | GSK PLC | 37733W204 | 1,000,000 | $38.4M | 3.60% |
| 11 | PFIZER INC | 717081103 | 1,500,000 | $36.4M | 3.41% |
| 12 | BIOMARIN PHARMACEUTICAL INC | 09061G101 | 600,000 | $33.0M | 3.10% |
| 13 | UNITEDHEALTH GROUP INC | 91324P102 | 100,000 | $31.2M | 2.93% |
| 14 | VIATRIS INC | 92556V106 | 2,750,000 | $24.6M | 2.31% |
| 15 | BROOKDALE SR LIVING INC | 112463104 | 2,150,000 | $15.0M | 1.40% |
| 16 | ZIMVIE INC | 98888T107 | 1,600,000 | $15.0M | 1.40% |
| 17 | APELLIS PHARMACEUTICALS INC | 03753U106 | 850,000 | $14.7M | 1.38% |
| 18 | MYRIAD GENETICS INC | 62855J104 | 2,000,000 | $10.6M | 1.00% |
| 19 | EVOLENT HEALTH INC | 30050B101 | 850,000 | $9.6M | 0.90% |
| 20 | CONCENTRA GROUP HOLDINGS PAR | 20603L102 | 400,000 | $8.2M | 0.77% |