Perceptive Advisors

Perceptive Advisors as of March 31, 2011

Portfolio Holdings for Perceptive Advisors

Perceptive Advisors holds 74 positions in its portfolio as reported in the March 2011 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Gilead Sciences (GILD) 8.0 $31M 739k 42.47
Teva Pharmaceutical Industries (TEVA) 6.5 $25M 505k 50.17
Express Scripts 5.7 $22M 400k 55.61
Celgene Corporation 5.6 $22M 382k 57.58
Spdr S&p 500 Etf (SPY) 5.1 $20M 150k 132.59
Allergan Inc Com Stk 5.0 $20M 276k 71.02
United Therapeutics Corporation (UTHR) 5.0 $20M 290k 67.02
WellPoint 3.3 $13M 185k 69.79
D Alexion Pharmaceutic Als Inc C Common Stock 0 3.1 $12M 122k 98.68
Neurocrine Biosciences (NBIX) 2.9 $11M 1.5M 7.59
Optimer Pharmaceuticals 2.7 $11M 898k 11.83
Salix Pharmaceuticals 2.6 $10M 296k 35.03
BioMimetic Therapeutics 2.6 $10M 778k 13.11
Endo Pharmaceuticals 2.5 $9.6M 252k 38.16
Vertex Pharmaceuticals Incorporated (VRTX) 2.5 $9.6M 200k 47.93
Ariad Pharmaceuticals 2.2 $8.7M 1.2M 7.52
Repros Therapeutics 2.2 $8.6M 1.6M 5.53
UnitedHealth (UNH) 2.1 $8.4M 185k 45.20
Aegerion Pharmaceuticals 1.7 $6.8M 408k 16.57
Warner Chilcott Plc - 1.7 $6.6M 282k 23.26
Varian Medical Systems 1.5 $5.9M 88k 67.64
Watson Pharmaceuticals 1.4 $5.6M 100k 56.01
Capital Senior Living Corporation 1.4 $5.5M 516k 10.62
Cepheid 1.4 $5.4M 192k 28.02
Uroplasty 1.4 $5.4M 815k 6.61
EXACT Sciences Corporation (EXAS) 1.2 $4.9M 663k 7.34
athenahealth 1.1 $4.5M 100k 45.13
Athersys 1.1 $4.2M 1.5M 2.84
iShares Russell 2000 Index (IWM) 1.1 $4.2M 50k 84.18
NPS Pharmaceuticals 1.1 $4.2M 435k 9.58
Cephalon 1.0 $3.8M 50k 76.08
Genzyme Corporation 1.0 $3.8M 50k 76.16
AVI BioPharma ComStk Usd0.0001 1.0 $3.8M 2.0M 1.86
Progenics Pharmaceuticals 0.9 $3.6M 585k 6.18
Human Genome Sciences 0.9 $3.6M 130k 27.45
ProAssurance Corporation (PRA) 0.8 $3.2M 50k 63.38
Immunomedics 0.8 $3.0M 785k 3.82
WuXi PharmaTech 0.7 $2.9M 185k 15.46
Cynosure 0.6 $2.3M 169k 13.89
Array BioPharma 0.6 $2.2M 715k 3.06
Bristol Myers Squibb (BMY) 0.5 $2.0M 75k 26.43
Pharmacyclics 0.5 $2.0M 343k 5.89
Solta Medical 0.5 $1.9M 578k 3.30
InterMune 0.5 $1.9M 40k 47.20
Medivation 0.5 $1.9M 100k 18.64
Trinity Biotech 0.4 $1.5M 164k 9.38
Micromet 0.4 $1.5M 268k 5.60
Ym Biosciences 0.4 $1.5M 560k 2.66
Trius Therapeutics 0.4 $1.5M 261k 5.70
Examworks 0.3 $1.1M 51k 22.23
Response Genetics (RGDXQ) 0.2 $932k 405k 2.30
3SBio (SSRX) 0.2 $865k 50k 17.30
China Nuokang Bio-Pharmaceutical (NKBP) 0.2 $826k 180k 4.60
Delcath Systems 0.2 $736k 100k 7.36
SIGA Technologies (SIGA) 0.1 $605k 50k 12.10
Raptor Pharmaceutical 0.1 $518k 150k 3.45
Affymax (AFFY) 0.1 $440k 75k 5.87
Dendreon Corporation 0.1 $374k 10k 37.40
XenoPort 0.1 $326k 55k 5.93
ZIOPHARM Oncology 0.1 $313k 50k 6.26
Stereotaxis 0.1 $290k 75k 3.87
LeMaitre Vascular (LMAT) 0.1 $283k 42k 6.80
Cumberland Pharmaceuticals (CPIX) 0.1 $277k 50k 5.54
Corcept Therapeutics Incorporated (CORT) 0.1 $244k 58k 4.24
Syneron Medical Ltd ord 0.0 $130k 10k 13.00
Medifast (MED) 0.0 $119k 6.0k 19.83
RTI Biologics 0.0 $94k 33k 2.87
Keryx Biopharmaceuticals 0.0 $44k 8.8k 5.00
Star Scientific 0.0 $23k 5.0k 4.60
Digirad Corporation 0.0 $25k 10k 2.50
Myrexis (MYRX) 0.0 $23k 6.0k 3.83
Nile Therapeutics Inc *w exp 99/99/999 0.0 $53k 150k 0.35
MELA Sciences 0.0 $18k 5.0k 3.60
Combimatrix Corporation *w exp 05/01/201 0.0 $0 50k 0.00