HoldingsChannel.com
Rock Springs Capital Management LP Top Holdings
As of  12/31/2019

   EntityAmountChange
 09/30/2019 to 12/31/2019
Position Size
($ in 1000's)
UNITEDHEALTH GROUP INC 591,000 UNCH $173,742
     UNH591,000UNCH$173,742
NEUROCRINE BIOSCIENCES INC      $138,908
     NBIX1,278,000+45,500$137,372
     NOTE 21,000,000UNCH$1,536
WELLCARE HEALTH PLANS INC 320,500 UNCH $105,832
     WCG320,500UNCH$105,832
AMARIN CORP PLC 4,650,000 UNCH $99,696
     AMRN4,650,000UNCH$99,696
INTUITIVE SURGICAL INC 152,500 UNCH $90,150
     ISRG152,500UNCH$90,150
JOHNSON & JOHNSON 557,500 +501,500 $81,323
     JNJ557,500+501,500$81,323
HCA HEALTHCARE INC 467,500 UNCH $69,101
     HCA467,500UNCH$69,101
HUMANA INC 185,000 +185,000 $67,806
     HUM185,000+185,000$67,806
ENCOMPASS HEALTH CORP 815,000 UNCH $56,455
     EHC815,000UNCH$56,455
BOSTON SCIENTIFIC CORP 1,200,000 +230,000 $54,264
     BSX1,200,000+230,000$54,264
PACIRA BIOSCIENCES      $53,137
     PCRX1,150,000UNCH$52,095
     NOTE 21,000,000UNCH$1,042
EPIZYME INC 2,050,000 +199,900 $50,430
     EPZM2,050,000+199,900$50,430
TELEFLEX INC 130,000 UNCH $48,937
     TFX130,000UNCH$48,937
INSULET CORP 260,500 UNCH $44,598
     PODD260,500UNCH$44,598
SAREPTA THERAPEUTICS INC 345,500 +8,000 $44,583
     SRPT345,500+8,000$44,583
VERTEX PHARMACEUTICALS INC 203,000 UNCH $44,447
     VRTX203,000UNCH$44,447
BAXTER INTL INC 525,000 +140,000 $43,901
     BAX525,000+140,000$43,901
EDWARDS LIFESCIENCES CORP 183,500 UNCH $42,809
     EW183,500UNCH$42,809
IRHYTHM TECHNOLOGIES INC 624,000 +69,000 $42,488
     IRTC624,000+69,000$42,488
ALNYLAM PHARMACEUTICALS INC 364,000 +33,500 $41,922
     ALNY364,000+33,500$41,922
PENUMBRA INC 242,500 UNCH $39,835
     PEN242,500UNCH$39,835
ARGENX SE 247,500 +65,800 $39,729
     ARGX247,500+65,800$39,729
EXACT SCIENCES CORP 420,000 -11,750 $38,842
     EXAS420,000-11,750$38,842
MIRATI THERAPEUTICS INC 300,000 +42,500 $38,658
     MRTX300,000+42,500$38,658
ARDELYX INC 4,850,000 +1,794,739 $36,399
     ARDX4,850,000+1,794,739$36,399
GALAPAGOS NV 175,000 UNCH $36,195
     GLPG175,000UNCH$36,195
BEIGENE LTD 214,800 UNCH $35,605
     BGNE214,800UNCH$35,605
RA PHARMACEUTICALS INC 750,000 -85,000 $35,198
     RARX750,000-85,000$35,198
COHERUS BIOSCIENCES INC 1,950,000 +70,000 $35,110
     CHRS1,950,000+70,000$35,110
MEDICINES CO      $34,871
     MDCO307,699-492,301$26,136
     NOTE 25,000,000UNCH$8,735
APREA THERAPEUTICS INC 723,991 +723,991 $33,224
     APRE723,991+723,991$33,224
NEVRO CORP 279,000 +36,500 $32,794
     NVRO279,000+36,500$32,794
COLLEGIUM PHARMACEUTICAL INC 1,575,000 -2,893 $32,414
     COLL1,575,000-2,893$32,414
ACADIA HEALTHCARE COMPANY IN 975,000 -315,000 $32,390
     ACHC975,000-315,000$32,390
IDEXX LABS INC 120,200 UNCH $31,388
     IDXX120,200UNCH$31,388
ALIGN TECHNOLOGY INC 110,900 UNCH $30,946
     ALGN110,900UNCH$30,946
ASSEMBLY BIOSCIENCES INC 1,500,000 +200,000 $30,690
     ASMB1,500,000+200,000$30,690
AGIOS PHARMACEUTICALS INC 641,500 +289,000 $30,632
     AGIO641,500+289,000$30,632
BLUEPRINT MEDICINES CORP 382,000 +48,500 $30,602
     BPMC382,000+48,500$30,602
MIRUM PHARMACEUTICALS INC 1,245,000 +454,952 $30,527
     MIRM1,245,000+454,952$30,527
AXONICS MODULATION TECH INC 1,100,000 +897,500 $30,481
     AXNX1,100,000+897,500$30,481
AMGEN INC 126,000 UNCH $30,375
     AMGN126,000UNCH$30,375
ULTRAGENYX PHARMACEUTICAL IN 700,000 +92,000 $29,897
     RARE700,000+92,000$29,897
ASCENDIS PHARMA A S 213,500 UNCH $29,702
     ASND213,500UNCH$29,702
UNIQURE NV 400,000 +205,500 $28,664
     QURE400,000+205,500$28,664
ACADIA PHARMACEUTICALS INC 670,000 +483,000 $28,663
     ACAD670,000+483,000$28,663
BIOMARIN PHARMACEUTICAL INC 337,500 +195,000 $28,536
     BMRN337,500+195,000$28,536
SEATTLE GENETICS INC 242,000 UNCH $27,651
     SGEN242,000UNCH$27,651
THERMO FISHER SCIENTIFIC INC 81,000 UNCH $26,314
     TMO81,000UNCH$26,314
DECIPHERA PHARMACEUTICALS IN 421,890 +171,890 $26,258
     DCPH421,890+171,890$26,258

See Full List: All Stocks Held By Rock Springs Capital Management LP
— Including:
     • Biggest new positions
     • Biggest exits
     • Biggest increased positions
     • Biggest decreased positions

See Details: Top 10 Stocks Held By Rock Springs Capital Management LP

Size ($ in 1000's)
At 12/31/2019: $3,164,999
At 09/30/2019: $2,509,651

Rock Springs Capital Management LP holdings changes, total fund size, and other information presented on HoldingsChannel.com was derived from Rock Springs Capital Management LP 13F filings. Link to 13F filings: SEC filings

Rock Springs Capital Management LP Top Holdings 13F Filings | www.HoldingsChannel.com

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