$2.6 Billion is the total value of Rock Springs Capital Management LP's 147 reported holdings in Q2 2018. The portfolio turnover from Q1 2018 to Q2 2018 was 18.3% .
| Value | Shares | ↓ Weighting | ||||||
|---|---|---|---|---|---|---|---|---|
| UNH | Buy | UNITEDHEALTH GROUP INC | $139,230,000 | +33.5% | 567,500 | +16.4% | 5.36% | +20.4% |
| MDGL | Buy | MADRIGAL PHARMACEUTICALS INC | $95,738,000 | +151.8% | 342,300 | +5.2% | 3.68% | +127.1% |
| NBIX | Buy | NEUROCRINE BIOSCIENCES INC | $61,930,000 | +23.2% | 630,400 | +4.0% | 2.38% | +11.1% |
| GWPH | Buy | GW PHARMACEUTICALS PLCads | $61,398,000 | +51.4% | 440,000 | +22.2% | 2.36% | +36.6% |
| ALXN | Buy | ALEXION PHARMACEUTICALS INC | $61,144,000 | +13.1% | 492,500 | +1.5% | 2.35% | +2.0% |
| WCG | Buy | WELLCARE HEALTH PLANS INC | $54,912,000 | +111.6% | 223,000 | +66.4% | 2.11% | +90.9% |
| HCA | Buy | HCA HEALTHCARE INC | $44,118,000 | +19.7% | 430,000 | +13.2% | 1.70% | +8.0% |
| SRPT | Buy | SAREPTA THERAPEUTICS INC | $39,324,000 | +105.7% | 297,500 | +15.3% | 1.51% | +85.6% |
| IRTC | Buy | IRHYTHM TECHNOLOGIES INC | $38,942,000 | +29.6% | 480,000 | +0.5% | 1.50% | +16.8% |
| PCRX | Buy | PACIRA PHARMACEUTICALS INC | $38,396,000 | +9.6% | 1,198,000 | +6.5% | 1.48% | -1.2% |
| RDUS | Buy | RADIUS HEALTH INC | $33,154,000 | -7.8% | 1,125,000 | +12.5% | 1.28% | -16.8% |
| VRTX | Buy | VERTEX PHARMACEUTICALS INC | $32,377,000 | +9.8% | 190,500 | +5.2% | 1.25% | -1.0% |
| EHC | Buy | ENCOMPASS HEALTH CORP | $30,474,000 | +63.0% | 450,000 | +37.6% | 1.17% | +47.2% |
| CELG | Buy | CELGENE CORP | $28,623,000 | +3.5% | 360,400 | +16.2% | 1.10% | -6.7% |
| DVA | Buy | DAVITA INC | $28,366,000 | +5.6% | 408,500 | +0.2% | 1.09% | -4.7% |
| PBYI | Buy | PUMA BIOTECHNOLOGY INC | $28,144,000 | +0.2% | 475,800 | +15.2% | 1.08% | -9.7% |
| TSRO | Buy | TESARO INC | $27,812,000 | -15.1% | 625,400 | +9.1% | 1.07% | -23.4% |
| AXGN | Buy | AXOGEN INC | $27,386,000 | +48.6% | 545,000 | +7.9% | 1.05% | +34.1% |
| GILD | Buy | GILEAD SCIENCES INC | $25,857,000 | +9.4% | 365,000 | +16.5% | 1.00% | -1.3% |
| ALDR | Buy | ALDER BIOPHARMACEUTICALS INC | $24,727,000 | +27.3% | 1,565,000 | +2.3% | 0.95% | +14.7% |
| EXAS | Buy | EXACT SCIENCES CORP | $22,720,000 | +52.1% | 380,000 | +2.6% | 0.87% | +37.2% |
| ALGN | Buy | ALIGN TECHNOLOGY INC | $22,581,000 | +37.3% | 66,000 | +0.8% | 0.87% | +23.8% |
| INGN | Buy | INOGEN INC | $22,173,000 | +63.3% | 119,000 | +7.7% | 0.85% | +47.3% |
| HRTX | Buy | HERON THERAPEUTICS INC | $20,396,000 | +55.2% | 525,000 | +10.3% | 0.78% | +40.2% |
| INCY | Buy | INCYTE CORP | $19,832,000 | +30.4% | 296,000 | +62.2% | 0.76% | +17.6% |
| NUVA | Buy | NUVASIVE INC | $19,415,000 | +21.9% | 372,500 | +22.1% | 0.75% | +10.0% |
| ZBH | Buy | ZIMMER BIOMET HLDGS INC | $17,942,000 | +11.6% | 161,000 | +9.2% | 0.69% | +0.6% |
| ASMB | Buy | ASSEMBLY BIOSCIENCES INC | $17,645,000 | -18.9% | 450,000 | +1.6% | 0.68% | -26.9% |
| ACRS | Buy | ACLARIS THERAPEUTICS INC | $17,094,000 | +84.1% | 856,000 | +61.5% | 0.66% | +66.2% |
| ALNY | Buy | ALNYLAM PHARMACEUTICALS INC | $17,088,000 | +0.3% | 173,500 | +21.3% | 0.66% | -9.5% |
| OBSV | Buy | OBSEVA SA | $16,957,000 | +49.6% | 1,120,000 | +33.3% | 0.65% | +35.2% |
| WST | New | WEST PHARMACEUTICAL SVSC INC | $15,886,000 | – | 160,000 | +100.0% | 0.61% | – |
| BHVN | Buy | BIOHAVEN PHARMACTL HLDG CO L | $15,709,000 | +87.6% | 397,500 | +22.3% | 0.60% | +69.2% |
| IDXX | Buy | IDEXX LABS INC | $15,692,000 | +30.1% | 72,000 | +14.3% | 0.60% | +17.5% |
| RARE | Buy | ULTRAGENYX PHARMACEUTICAL IN | $15,374,000 | +74.3% | 200,000 | +15.6% | 0.59% | +57.4% |
| GTHX | Buy | G1 THERAPEUTICS INC | $13,038,000 | +22.6% | 300,000 | +4.5% | 0.50% | +10.6% |
| EXEL | Buy | EXELIXIS INC | $12,804,000 | +230.3% | 595,000 | +240.0% | 0.49% | +198.8% |
| TBIO | New | TRANSLATE BIO INC | $12,790,000 | – | 1,011,079 | +100.0% | 0.49% | – |
| BPMC | Buy | BLUEPRINT MEDICINES CORP | $12,633,000 | -12.7% | 199,000 | +26.1% | 0.49% | -21.2% |
| MRTX | Buy | MIRATI THERAPEUTICS INC | $11,832,000 | +103.9% | 240,000 | +27.0% | 0.46% | +83.5% |
| IMMU | Buy | IMMUNOMEDICS INC | $11,835,000 | +80.0% | 500,000 | +11.1% | 0.46% | +62.5% |
| CLVS | Buy | CLOVIS ONCOLOGY INC | $11,595,000 | -5.1% | 255,000 | +10.2% | 0.45% | -14.4% |
| RIGL | Buy | RIGEL PHARMACEUTICALS INC | $11,179,000 | +22.6% | 3,950,000 | +53.4% | 0.43% | +10.5% |
| ARGX | New | ARGENX SEsponsored adr | $10,668,000 | – | 128,750 | +100.0% | 0.41% | – |
| ANAB | Buy | ANAPTYSBIO INC | $10,656,000 | -24.2% | 150,000 | +11.1% | 0.41% | -31.6% |
| A | Buy | AGILENT TECHNOLOGIES INC | $10,123,000 | +65.4% | 163,700 | +78.9% | 0.39% | +49.4% |
| ZGNX | Buy | ZOGENIX INC | $9,989,000 | +10.6% | 226,000 | +0.2% | 0.38% | -0.3% |
| FPRX | Buy | FIVE PRIME THERAPEUTICS INC | $9,375,000 | -6.8% | 593,000 | +1.3% | 0.36% | -15.9% |
| ARDX | Buy | ARDELYX INC | $9,345,000 | -18.7% | 2,525,557 | +11.0% | 0.36% | -26.5% |
| MNTA | Buy | MOMENTA PHARMACEUTICALS INC | $9,254,000 | +47.8% | 452,500 | +31.2% | 0.36% | +33.3% |
| ODT | Buy | ODONATE THERAPEUTICS INC | $8,782,000 | +8.1% | 397,750 | +3.7% | 0.34% | -2.6% |
| APTX | New | APTINYX INC | $8,218,000 | – | 340,000 | +100.0% | 0.32% | – |
| CBAY | Buy | CYMABAY THERAPEUTICS INC | $7,784,000 | +22.3% | 580,000 | +18.4% | 0.30% | +10.3% |
| RARX | Buy | RA PHARMACEUTICALS INC | $7,463,000 | +134.2% | 750,000 | +25.0% | 0.29% | +111.0% |
| KURA | Buy | KURA ONCOLOGY INC | $7,280,000 | +1364.8% | 400,000 | +1409.4% | 0.28% | +1233.3% |
| ZLAB | Buy | ZAI LAB LTDadr | $6,975,000 | +10.7% | 300,000 | +1.7% | 0.27% | -0.4% |
| AGLE | Buy | AEGLEA BIOTHERAPEUTICS INC | $6,877,000 | +32.3% | 650,000 | +24.0% | 0.26% | +19.4% |
| RYTM | Buy | RHYTHM PHARMACEUTICALS INC | $6,721,000 | +372.3% | 215,000 | +200.7% | 0.26% | +324.6% |
| ACHN | Buy | ACHILLION PHARMACEUTICALS IN | $6,651,000 | -20.3% | 2,350,000 | +4.4% | 0.26% | -28.1% |
| LJPC | Buy | LA JOLLA PHARMACEUTICAL CO | $6,484,000 | -1.0% | 222,300 | +1.0% | 0.25% | -10.4% |
| BSX | New | BOSTON SCIENTIFIC CORP | $5,641,000 | – | 172,500 | +100.0% | 0.22% | – |
| EVHC | New | ENVISION HEALTHCARE CORP | $4,854,000 | – | 110,300 | +100.0% | 0.19% | – |
| CORV | New | CORREVIO PHARMA CORP | $4,536,000 | – | 1,200,000 | +100.0% | 0.18% | – |
| NVAX | Buy | NOVAVAX INC | $4,355,000 | -24.6% | 3,250,000 | +18.2% | 0.17% | -31.7% |
| DVAX | Buy | DYNAVAX TECHNOLOGIES CORP | $4,087,000 | -18.0% | 268,000 | +6.8% | 0.16% | -26.3% |
| CGEN | Buy | COMPUGEN LTDord | $3,558,000 | -3.1% | 1,078,165 | +30.7% | 0.14% | -12.7% |
| Buy | NABRIVA THERAPEUTICS PLC | $2,227,000 | -29.2% | 640,000 | +2.4% | 0.09% | -35.8% | |
| KNSA | New | KINIKSA PHARMACEUTICALS LTD | $1,562,000 | – | 90,000 | +100.0% | 0.06% | – |
| New | NEUROCRINE BIOSCIENCES INCnote 2.250% 5/1 | $1,446,000 | – | 1,000,000 | +100.0% | 0.06% | – | |
| New | DERMIRA INCnote 3.000% 5/1 | $827,000 | – | 1,000,000 | +100.0% | 0.03% | – | |
| MCK | New | MCKESSON CORP | $667,000 | – | 5,000 | +100.0% | 0.03% | – |
Original filings
The following EDGAR filing(s) were analyzed to create this report:
- View 13F-HR filed 2018-08-14
Top long-term holdings
| Name | Quarters owned | Latest quarter owned | Max weighting |
|---|---|---|---|
| INTUITIVE SURGICAL INC | 40 | Q3 2023 | 3.4% |
| NEUROCRINE BIOSCIENCES INC | 39 | Q3 2023 | 4.8% |
| PACIRA PHARMACEUTICALS INC | 39 | Q3 2023 | 2.6% |
| ULTRAGENYX PHARMACEUTICAL IN | 39 | Q3 2023 | 1.9% |
| ACADIA HEALTHCARE COMPANY IN | 38 | Q3 2023 | 4.4% |
| ASCENDIS PHARMA A/S | 35 | Q3 2023 | 1.3% |
| INVITAE CORP | 35 | Q3 2023 | 1.8% |
| BIOMARIN PHARMACEUTICAL INC | 35 | Q3 2023 | 1.3% |
| MACROGENICS INC | 35 | Q3 2023 | 0.5% |
| COLLEGIUM PHARMACEUTICAL INC | 34 | Q3 2023 | 2.1% |
View Rock Springs Capital Management LP's complete holdings history.
Latest significant ownerships (13-D/G)
| Filed | Shares | Percentage | |
|---|---|---|---|
| Aeglea BioTherapeutics, Inc. | February 14, 2023 | 3,413,906 | 5.6% |
| Compass Therapeutics, Inc. | February 14, 2023 | 5,333,188 | 4.2% |
| Mirum Pharmaceuticals, Inc. | February 14, 2023 | 1,795,733 | 4.9% |
| PhaseBio Pharmaceuticals IncSold out | February 14, 2023 | 0 | 0.0% |
| Sierra Oncology, Inc.Sold out | February 14, 2023 | 0 | 0.0% |
| ARDELYX, INC.Sold out | February 15, 2022 | 0 | 0.0% |
| CHIASMA, INCSold out | February 15, 2022 | 0 | 0.0% |
| FIVE PRIME THERAPEUTICS, INC.Sold out | February 15, 2022 | 0 | 0.0% |
| F-star Therapeutics, Inc. | February 15, 2022 | 751,889 | 3.6% |
| Protara Therapeutics, Inc.Sold out | February 15, 2022 | 0 | 0.0% |
View Rock Springs Capital Management LP's complete significant-ownership history.
Latest filings
| Type | Filed |
|---|---|
| 13F-HR | 2024-05-15 |
| SC 13G | 2024-05-01 |
| SC 13G/A | 2024-04-05 |
| 13F-HR | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
| SC 13G/A | 2024-02-14 |
View Rock Springs Capital Management LP's complete filings history.
All filings
- Holdings (13F-HR)
- Significant ownership (13-D/G)
- Insider transactions (4, 5, 6)
- Events (8-K)
- Shareholder votes (proxy)
View complete filings history.