Avoid Fraud, Get The Facts, And Find The Best
Legal Name: ROCK SPRINGS CAPITAL MANAGEMENT LP
Period of report:
Jun 30, 2019
Effectiveness Date:
Aug 14, 2019
| Security |
Shares Held / Principal Amount |
Market Value |
Option |
|
UNITEDHEALTH GRP INC (91324P102)
|
591,000 |
$144,210k |
|
|
GW PHARMACEUTICALS PLC ADS (36197T103)
|
605,000 |
$104,296k |
|
|
WELLCARE HEALTH PLANS INC (94946T106)
|
320,500 |
$91,365k |
|
|
B. Riley Wealth Management, Inc. (023111206)
|
4,525,000 |
$87,740k |
|
|
Neurocrine Biosciences Inc. (64125C109)
|
1,023,000 |
$86,372k |
|
|
INTUITIVE SURGIC INC (46120E602)
|
152,500 |
$79,994k |
|
|
HCA HEALTHCARE (40412C101)
|
455,000 |
$61,502k |
|
|
PACIRA BIOSCIENCES (695127100)
|
1,250,000 |
$54,363k |
|
|
SPARK THERAPEUTICS INC (84652J103)
|
505,371 |
$51,740k |
|
|
Encompass Health Corp (29261A100)
|
805,000 |
$51,005k |
|
|
Sarepta Therapeutics Inc (803607100)
|
325,000 |
$49,384k |
|
|
Bristol-Myers Squibb Co (110122108)
|
1,050,000 |
$47,618k |
|
|
EXACT SCIENCES CORP (30063P105)
|
397,000 |
$46,862k |
|
|
TELEFLEX INC (879369106)
|
130,000 |
$43,050k |
|
|
BOSTON SCIENTIFIC (101137107)
|
970,000 |
$41,691k |
|
|
COHERUS BIOSCIENCES INC (19249H103)
|
1,880,000 |
$41,548k |
|
|
IRHYTHM TECHNOLOGIES INC COM (450056106)
|
499,615 |
$39,510k |
|
|
PENUMBRA INC COM (70975L107)
|
239,000 |
$38,240k |
|
|
Vertex Pharmaceuticals Inc (92532F100)
|
203,000 |
$37,226k |
|
|
ACADIA HEALTHCARE CO INC (00404A109)
|
1,055,000 |
$36,872k |
|
|
Ultragenyx Pharmaceutical Inc (90400D108)
|
580,000 |
$36,830k |
|
|
STRYKER CORP (863667101)
|
179,000 |
$36,799k |
|
|
EDWARDS LIFESCIENCE (28176E108)
|
183,500 |
$33,900k |
|
|
IDEXX LABS INC (45168D104)
|
120,200 |
$33,095k |
|
|
ALEXION PHARMACEUTICALS INC CO (015351109)
|
242,500 |
$31,763k |
|
|
RADIUS HEALTH INC (750469207)
|
1,250,000 |
$30,450k |
|
|
MOLINA HEALTHCARE INC (60855R100)
|
206,000 |
$29,487k |
|
|
INSULET CORP COM (45784P101)
|
244,500 |
$29,188k |
|
|
MEDICINES CO (584688105)
|
800,000 |
$29,176k |
|
|
BLUEPRINT MEDICINES CORP (09627Y109)
|
307,500 |
$29,006k |
|
|
ADAPTIVE BIOTECHNOLOGIES COR (00650F109)
|
600,000 |
$28,980k |
|
|
ALIGN TECHNOLOGY INC (016255101)
|
105,000 |
$28,739k |
|
|
CIGNA CORP (125523100)
|
182,300 |
$28,721k |
|
|
Portola Pharmaceuticals Inc (737010108)
|
1,008,000 |
$27,347k |
|
|
MADRIGAL PHARMACEUTICALS INC (558868105)
|
256,900 |
$26,926k |
|
|
BEIGENE LTD-ADR (07725L102)
|
214,800 |
$26,624k |
|
|
Incyte Corp (45337C102)
|
312,300 |
$26,533k |
|
|
Invitae Corp (46185L103)
|
1,125,000 |
$26,438k |
|
|
Argenx SE Sponsored ADR (04016X101)
|
181,700 |
$25,725k |
|
|
BAXTER INTL INC (071813109)
|
300,700 |
$24,627k |
|
|
ASCENDIS PHARMA A S (04351P101)
|
213,500 |
$24,585k |
|
|
RA PHARMACEUTICALS (74933V108)
|
804,000 |
$24,176k |
|
|
PRA Health Science (69354m108)
|
240,000 |
$23,796k |
|
|
Thermo Fisher Scientific Inc (883556102)
|
81,000 |
$23,788k |
|
|
ALNYLAM PHARMACEUTICALS INC (02043Q107)
|
327,700 |
$23,778k |
|
|
EPIZYME INC (29428V104)
|
1,850,100 |
$23,219k |
|
|
BIOGEN INC (09062X103)
|
97,500 |
$22,802k |
Call |
|
INSMED INC (457669307)
|
890,000 |
$22,784k |
|
|
GALAPAGOS NV (36315X101)
|
165,000 |
$21,273k |
|
|
MIRATI THERAPEUTICS INC (60468T105)
|
202,500 |
$20,858k |
|
|
COLLEGIUM PHARMACEUTICAL INC (19459J104)
|
1,577,893 |
$20,749k |
|
|
ZAI LAB LIMITED ADS EACH REP 1 ORD SHS (98887Q104)
|
550,000 |
$19,179k |
|
|
RETROPHIN INC COM (761299106)
|
950,000 |
$19,086k |
|
|
PHASEBIO PHARMACEUTICALS INC (717224109)
|
1,423,256 |
$18,673k |
|
|
ALDER BIOPHARMACEUTICALS INC (014339105)
|
1,562,300 |
$18,388k |
|
|
Intersect ENT Inc. (46071F103)
|
790,000 |
$17,980k |
|
|
ALLAKOS INC COM (01671P100)
|
404,000 |
$17,505k |
|
|
WEST PHARMACEUT SVS (955306105)
|
137,500 |
$17,208k |
|
|
CELGENE CORP (151020104)
|
185,150 |
$17,115k |
|
|
Sage Therapeutics Inc (78667J108)
|
92,500 |
$16,936k |
|
|
SEATTLE GENETICS INC (812578102)
|
242,000 |
$16,749k |
|
|
Guardant Health Inc (40131M109)
|
190,000 |
$16,403k |
|
|
AXONICS MODULATION TECH INC (05465P101)
|
400,000 |
$16,388k |
|
|
ODONATE THERAPEUTICS INC (676079106)
|
430,000 |
$15,777k |
|
|
AUDENTES THERAPEUTICS INC COM (05070R104)
|
410,000 |
$15,523k |
|
|
BIOHAVEN PHARMACTL HLDG CO L (G11196105)
|
343,500 |
$15,042k |
|
|
GLOBAL BLOOD THERAPEUTICS IN (37890U108)
|
265,000 |
$13,939k |
|
|
FIBROGEN INC (31572Q808)
|
306,000 |
$13,825k |
|
|
AGILENT TECHNOLOGIES INC (00846U101)
|
182,800 |
$13,650k |
|
|
TRANSLATE BIO INC (89374L104)
|
1,009,179 |
$12,746k |
|
|
NEVRO CORP COM (64157F103)
|
195,500 |
$12,674k |
|
|
OBSEVA SA (H5861P103)
|
1,120,000 |
$12,667k |
|
|
AMICUS THERAPEUTICS INC (03152W109)
|
1,000,000 |
$12,480k |
|
|
IMMUNOMEDICS INC (452907108)
|
895,000 |
$12,414k |
|
|
NOVOCURE LTD (G6674U108)
|
195,000 |
$12,330k |
|
|
Anaptysbio Inc (032724106)
|
218,500 |
$12,328k |
|
|
BIOMARIN PHARMACEUTICAL INC (09061G101)
|
142,500 |
$12,205k |
|
|
AXOGEN INC COM (05463X106)
|
603,970 |
$11,959k |
|
|
ZOGENIX INC (98978L204)
|
235,000 |
$11,228k |
|
|
RIGEL PHARMACEUTICL (766559603)
|
4,200,000 |
$10,962k |
|
|
ABBVIE INC (00287Y109)
|
150,000 |
$10,908k |
|
|
FRESHPET INC COM (358039105)
|
235,000 |
$10,695k |
|
|
THERAVANCE BIOPHARMA INC (G8807B106)
|
550,000 |
$8,982k |
|
|
AGIOS PHARMACEUTICALS INC (00847X104)
|
170,500 |
$8,505k |
|
|
Homology Medicines (438083107)
|
425,000 |
$8,317k |
|
|
RTI BIOLOGICS INC COM (74975N105)
|
1,950,000 |
$8,288k |
|
|
KARUNA THERAPEUTICS INC (48576A100)
|
413,500 |
$8,278k |
|
|
ACHILLION PHARMACEUTICALS (00448Q201)
|
2,950,000 |
$7,906k |
|
|
Assembly Biosciences Inc (045396108)
|
560,000 |
$7,554k |
|
|
DERMIRA INC (24983L104)
|
775,000 |
$7,409k |
|
|
PUMA BIOTECHNOLOGY INC (74587V107)
|
534,400 |
$6,792k |
|
|
CymaBay Therapeutics, Inc. (23257D103)
|
900,000 |
$6,444k |
|
|
SPERO THERAPEUTICS INC (84833T103)
|
525,000 |
$6,043k |
|
|
Bluebird Bio Inc (09609G100)
|
47,000 |
$5,978k |
|
|
INSMED INC (457669AA7)
|
6,000,000 |
$5,849k |
|
|
MERSANA THERAPEUTICS INC (59045L106)
|
1,400,000 |
$5,670k |
|
|
ANTHEM INC (036752103)
|
20,000 |
$5,644k |
|
|
AEGLEA BIOTHERAPEUTICS INC (00773J103)
|
800,000 |
$5,480k |
|
|
ARDELYX INC (039697107)
|
2,000,000 |
$5,380k |
|
|
GLOBAL CORD BLOOD CORPORATIO (G39342103)
|
925,000 |
$5,347k |
|
|
Rhythm Pharmaceuticals, Inc. (76243J105)
|
235,000 |
$5,170k |
|
|
NGM BIOPHARMACEUTICALS INC (62921N105)
|
351,100 |
$5,140k |
|
|
MACROGENICS INC (556099109)
|
300,000 |
$5,091k |
|
|
GAMIDA CELL LTD (M47364100)
|
1,000,000 |
$5,080k |
|
|
MEDICINES CO/THE (584688AG0)
|
5,000,000 |
$5,026k |
|
|
Momenta Pharmaceutical Inc. (60877T100)
|
400,000 |
$4,980k |
|
|
CHIASMA INC (16706W102)
|
650,000 |
$4,856k |
|
|
ALDER BIOPHARMACEUTICALS INC (014339AA3)
|
5,000,000 |
$4,672k |
|
|
ACLARIS THERAPEUTICS INC (00461U105)
|
2,028,000 |
$4,441k |
|
|
AKERO THERAPEUTICS INC (00973Y108)
|
225,000 |
$4,309k |
|
|
Compugen Ltd (M25722105)
|
1,100,000 |
$4,224k |
|
|
RESTORBIO INC (76133L103)
|
400,000 |
$4,080k |
|
|
MYOVANT SCIENCES (G637AM102)
|
450,000 |
$4,073k |
|
|
INTERCEPT PHARMACEUTICALS (45845P108)
|
50,000 |
$3,979k |
|
|
LA JOLLA PHARMACEUTICAL CO (503459604)
|
425,000 |
$3,931k |
|
|
NABRIVA THERAPEUTICS PLC SHS (G63637105)
|
1,600,000 |
$3,888k |
|
|
CLOVIS ONCOLOGY INC COM (189464100)
|
256,000 |
$3,807k |
|
|
MEDICINES CO (584688AE5)
|
3,000,000 |
$3,618k |
|
|
ADAPTIMMUNE THERAPEUTICS PLC (00653A107)
|
875,000 |
$3,518k |
|
|
ARVINAS INC (04335A105)
|
150,000 |
$3,299k |
|
|
FIVE PRIME THERAPEUTICS INC (33830X104)
|
526,100 |
$3,172k |
|
|
DYNAVAX TECHNOLOGIES CORP (268158201)
|
650,000 |
$2,594k |
|
|
CORREVIO PHARMA CORP (22026V105)
|
1,200,000 |
$2,592k |
|
|
Paratek (699374302)
|
450,000 |
$1,796k |
|
|
CORVUS PHARMACEUTICALS INC (221015100)
|
400,000 |
$1,496k |
|
|
RADIUS HEALTH INC (750469AA6)
|
1,500,000 |
$1,361k |
|
|
NBIX 2 1/4 5/15/24 (64125CAD1)
|
1,000,000 |
$1,317k |
|
|
TBPH 3 1/4 11/1/23 (88339KAA0)
|
1,500,000 |
$1,290k |
|
|
KALEIDO BIOSCIENCES INC (483347100)
|
100,050 |
$1,161k |
|
|
PCRX 2 3/8 4/1/22 (695127AD2)
|
1,000,000 |
$1,026k |
|
|
Novavax, Inc. (670002401)
|
162,500 |
$952k |
|
|
DERMIRA INC (24983LAB0)
|
1,000,000 |
$865k |
|
|
COVETRUS INC (22304C100)
|
32,231 |
$788k |
|
|
HERON THERAPEUTICS INC (427746102)
|
30,000 |
$558k |
|
|
PROTEOSTASIS THERAPEUTICS IN (74373B109)
|
400,000 |
$390k |
|
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