0001172661-15-001184.txt : 20150515
0001172661-15-001184.hdr.sgml : 20150515
20150515130526
ACCESSION NUMBER: 0001172661-15-001184
CONFORMED SUBMISSION TYPE: 13F-HR
PUBLIC DOCUMENT COUNT: 2
CONFORMED PERIOD OF REPORT: 20150331
FILED AS OF DATE: 20150515
DATE AS OF CHANGE: 20150515
EFFECTIVENESS DATE: 20150515
FILER:
COMPANY DATA:
COMPANY CONFORMED NAME: Rock Springs Capital Management LP
CENTRAL INDEX KEY: 0001595725
IRS NUMBER: 800944416
STATE OF INCORPORATION: DE
FISCAL YEAR END: 1231
FILING VALUES:
FORM TYPE: 13F-HR
SEC ACT: 1934 Act
SEC FILE NUMBER: 028-16048
FILM NUMBER: 15867392
BUSINESS ADDRESS:
STREET 1: 650 SOUTH EXETER STREET
CITY: BALTIMORE
STATE: MD
ZIP: 21202
BUSINESS PHONE: 4102200129
MAIL ADDRESS:
STREET 1: 650 SOUTH EXETER STREET
CITY: BALTIMORE
STATE: MD
ZIP: 21202
13F-HR
1
primary_doc.xml
13F-HR
LIVE
false
true
false
0001595725
XXXXXXXX
03-31-2015
03-31-2015
false
Rock Springs Capital Management LP
650 South Exeter Street
Baltimore
MD
21202
13F HOLDINGS REPORT
028-16048
N
Evans Apeadu
Chief Financial Officer/Chief Compliance Officer
410-220-0129
/s/ Evans Apeadu
Baltimore
MD
05-15-2015
0
105
1069136
INFORMATION TABLE
2
infotable.xml
ABBVIE INC
COM
00287Y109
35124
600000
SH
SOLE
600000
0
0
ACADIA HEALTHCARE COMPANY IN
COM
00404A109
25955
362500
SH
SOLE
362500
0
0
ACHILLION PHARMACEUTICALS IN
COM
00448Q201
5916
600000
SH
SOLE
600000
0
0
ACTAVIS PLC
SHS
G0083B108
33482
112500
SH
SOLE
112500
0
0
ACTAVIS PLC
PFD CONV SER A
G0083B116
5150
5000
SH
SOLE
5000
0
0
ADVAXIS INC
COM NEW
007624208
7076
490000
SH
SOLE
490000
0
0
AERIE PHARMACEUTICALS INC
COM
00771V108
4576
146000
SH
SOLE
146000
0
0
AETNA INC NEW
COM
00817Y108
16672
156500
SH
SOLE
156500
0
0
ALEXION PHARMACEUTICALS INC
COM
015351109
18760
108250
SH
SOLE
108250
0
0
AMGEN INC
COM
031162100
26215
164000
SH
SOLE
164000
0
0
ANTHERA PHARMACEUTICALS INC
COM NEW
03674U201
1900
425000
SH
SOLE
425000
0
0
ASCENDIS PHARMA A S
SPONSORED ADR
04351P101
617
35540
SH
SOLE
35540
0
0
ASSEMBLY BIOSCIENCES INC
COM
045396108
4204
317500
SH
SOLE
317500
0
0
AVALANCHE BIOTECHNOLOGIES IN
COM
05337G107
2857
70500
SH
SOLE
70500
0
0
BENEFITFOCUS INC
COM
08180D106
2759
75000
SH
SOLE
75000
0
0
BIOGEN INC
COM
09062X103
15623
37000
SH
SOLE
37000
0
0
BIOMARIN PHARMACEUTICAL INC
COM
09061G101
4050
32500
SH
SOLE
32500
0
0
BLUEBIRD BIO INC
COM
09609G100
3019
25000
SH
SOLE
25000
0
0
CARDIOME PHARMA CORP
COM NO PAR
14159U301
5232
565000
SH
SOLE
565000
0
0
CASTLIGHT HEALTH INC
CL B
14862Q100
4074
525000
SH
SOLE
525000
0
0
CELGENE CORP
COM
151020104
22422
194500
SH
SOLE
194500
0
0
CELLECTIS S A
SPONSORED ADS
15117K103
2594
75000
SH
SOLE
75000
0
0
CERNER CORP
COM
156782104
4396
60000
SH
SOLE
60000
0
0
CERULEAN PHARMA INC
COM
15708Q105
4865
540000
SH
SOLE
540000
0
0
CHINA CORD BLOOD CORP
SHS
G21107100
4241
830000
SH
SOLE
830000
0
0
CIGNA CORPORATION
COM
125509109
15792
122000
SH
SOLE
122000
0
0
COHERUS BIOSCIENCES INC
COM
19249H103
6087
199051
SH
SOLE
199051
0
0
CONNECTURE INC
COM
20786J106
6210
600000
SH
SOLE
600000
0
0
COOPER COS INC
COM NEW
216648402
10121
54000
SH
SOLE
54000
0
0
CVS HEALTH CORP
COM
126650100
16926
164000
SH
SOLE
164000
0
0
DANAHER CORP DEL
COM
235851102
8957
105500
SH
SOLE
105500
0
0
DAVITA HEALTHCARE PARTNERS I
COM
23918K108
7315
90000
SH
SOLE
90000
0
0
DERMIRA INC
COM
24983L104
649
42274
SH
SOLE
42274
0
0
ENTEROMEDICS INC
COM NEW
29365M208
743
811760
SH
SOLE
811760
0
0
ENVISION HEALTHCARE HLDGS IN
COM
29413U103
21860
570000
SH
SOLE
570000
0
0
EPIZYME INC
COM
29428V104
5756
306500
SH
SOLE
306500
0
0
FIBROGEN INC
COM
31572Q808
4748
151300
SH
SOLE
151300
0
0
FIVE PRIME THERAPEUTICS INC
COM
33830X104
3108
136000
SH
SOLE
136000
0
0
FLAMEL TECHNOLOGIES SA
SPONSORED ADR
338488109
8271
460000
SH
SOLE
460000
0
0
GILEAD SCIENCES INC
COM
375558103
25023
255000
SH
SOLE
255000
0
0
GW PHARMACEUTICALS PLC
ADS
36197T103
6379
70000
SH
SOLE
70000
0
0
HCA HOLDINGS INC
COM
40412C101
31785
422500
SH
SOLE
422500
0
0
HEALTHSOUTH CORP
COM NEW
421924309
9759
220000
SH
SOLE
220000
0
0
HEARTWARE INTL INC
COM
422368100
9216
105000
SH
SOLE
105000
0
0
HERON THERAPEUTICS INC
COM
427746102
473
32500
SH
SOLE
32500
0
0
HUMANA INC
COM
444859102
19137
107500
SH
SOLE
107500
0
0
ILLUMINA INC
COM
452327109
4455
24000
SH
SOLE
24000
0
0
INCYTE CORP
COM
45337C102
10358
113000
SH
SOLE
113000
0
0
INFINITY PHARMACEUTICALS INC
COM
45665G303
3006
215000
SH
SOLE
215000
0
0
INOVALON HLDGS INC
COM CL A
45781D101
11329
375000
SH
SOLE
375000
0
0
INSMED INC
COM PAR $.01
457669307
7592
365000
SH
SOLE
365000
0
0
INTERCEPT PHARMACEUTICALS IN
COM
45845P108
10153
36000
SH
SOLE
36000
0
0
INTUITIVE SURGICAL INC
COM NEW
46120E602
11363
22500
SH
SOLE
22500
0
0
INVITAE CORP
COM
46185L103
2095
125000
SH
SOLE
125000
0
0
JAZZ PHARMACEUTICALS PLC
SHS USD
G50871105
4493
26000
SH
SOLE
26000
0
0
JUNO THERAPEUTICS INC
COM
48205A109
7426
122426
SH
SOLE
122426
0
0
KINDRED BIOSCIENCES INC
COM
494577109
1964
275000
SH
SOLE
275000
0
0
KITE PHARMA INC
COM
49803L109
4123
71474
SH
SOLE
71474
0
0
KYTHERA BIOPHARMACEUTICALS I
COM
501570105
5767
115000
SH
SOLE
115000
0
0
LABORATORY CORP AMER HLDGS
COM NEW
50540R409
9457
75000
SH
SOLE
75000
0
0
LILLY ELI & CO
COM
532457108
16710
230000
SH
SOLE
230000
0
0
MACROGENICS INC
COM
556099109
3655
116500
SH
SOLE
116500
0
0
MCKESSON CORP
COM
58155Q103
33704
149000
SH
SOLE
149000
0
0
MEDICINES CO
COM
584688105
8406
300000
SH
SOLE
300000
0
0
MEDTRONIC PLC
SHS
G5960L103
44634
572300
SH
SOLE
572300
0
0
NEUROCRINE BIOSCIENCES INC
COM
64125C109
14891
375000
SH
SOLE
375000
0
0
NOVADAQ TECHNOLOGIES INC
COM
66987G102
7714
475000
SH
SOLE
475000
0
0
NOVAVAX INC
COM
670002104
6037
730000
SH
SOLE
730000
0
0
OREXIGEN THERAPEUTICS INC
COM
686164104
12137
1550000
SH
SOLE
1550000
0
0
PACIRA PHARMACEUTICALS INC
COM
695127100
4509
50750
SH
SOLE
50750
0
0
PERRIGO CO PLC
SHS
G97822103
7781
47000
SH
SOLE
47000
0
0
PFIZER INC
COM
717081103
26440
760000
SH
SOLE
760000
0
0
PHARMACYCLICS INC
COM
716933106
22524
88000
SH
SOLE
88000
0
0
PRA HEALTH SCIENCES INC
COM
69354M108
8219
285000
SH
SOLE
285000
0
0
PROTHENA CORP PLC
SHS
G72800108
9058
237500
SH
SOLE
237500
0
0
PTC THERAPEUTICS INC
COM
69366J200
2464
40500
SH
SOLE
40500
0
0
PUMA BIOTECHNOLOGY INC
COM
74587V107
5726
24250
SH
SOLE
24250
0
0
RADIUS HEALTH INC
COM NEW
750469207
16464
400000
SH
SOLE
400000
0
0
RAPTOR PHARMACEUTICAL CORP
COM
75382F106
1685
155000
SH
SOLE
155000
0
0
RECEPTOS INC
COM
756207106
10718
65000
SH
SOLE
65000
0
0
REGENERON PHARMACEUTICALS
COM
75886F107
4515
10000
SH
SOLE
10000
0
0
RELYPSA INC
COM
759531106
7394
205000
SH
SOLE
205000
0
0
RETROPHIN INC
COM
761299106
16772
700000
SH
SOLE
700000
0
0
ROKA BIOSCIENCE INC
COM
775431109
800
250000
SH
SOLE
250000
0
0
RTI SURGICAL INC
COM
74975N105
9188
1860000
SH
SOLE
1860000
0
0
SELECT SECTOR SPDR TR
SBI HEALTHCARE
81369Y209
7975
110000
SH
SOLE
110000
0
0
SPARK THERAPEUTICS INC
COM
84652J103
2566
33106
SH
SOLE
33106
0
0
STERICYCLE INC
COM
858912108
10322
73500
SH
SOLE
73500
0
0
STERIS CORP
COM
859152100
6184
88000
SH
SOLE
88000
0
0
TANDEM DIABETES CARE INC
COM
875372104
6005
475800
SH
SOLE
475800
0
0
TEAM HEALTH HOLDINGS INC
COM
87817A107
18197
311000
SH
SOLE
311000
0
0
TESARO INC
COM
881569107
12054
210000
SH
SOLE
210000
0
0
TETRAPHASE PHARMACEUTICALS I
COM
88165N105
3756
102500
SH
SOLE
102500
0
0
THERAVANCE BIOPHARMA INC
COM
G8807B106
6489
374000
SH
SOLE
374000
0
0
THERMO FISHER SCIENTIFIC INC
COM
883556102
13434
100000
SH
SOLE
100000
0
0
THORATEC CORP
COM NEW
885175307
21573
515000
SH
SOLE
515000
0
0
TORNIER N V
SHS
N87237108
17305
660000
SH
SOLE
660000
0
0
TRIVASCULAR TECHNOLOGIES INC
COM
89685A102
2077
198000
SH
SOLE
198000
0
0
ULTRAGENYX PHARMACEUTICAL IN
COM
90400D108
5712
92000
SH
SOLE
92000
0
0
VALEANT PHARMACEUTICALS INTL
COM
91911K102
30786
155000
SH
SOLE
155000
0
0
VERTEX PHARMACEUTICALS INC
COM
92532F100
8022
68000
SH
SOLE
68000
0
0
WELLCARE HEALTH PLANS INC
COM
94946T106
5488
60000
SH
SOLE
60000
0
0
WUXI PHARMATECH CAYMAN INC
SPONS ADR SHS
929352102
6515
168000
SH
SOLE
168000
0
0
XENOPORT INC
COM
98411C100
2207
310000
SH
SOLE
310000
0
0
ZS PHARMA INC
COM
98979G105
6649
158000
SH
SOLE
158000
0
0