Perceptive Advisors

Perceptive Advisors as of March 31, 2012

Portfolio Holdings for Perceptive Advisors

Perceptive Advisors holds 72 positions in its portfolio as reported in the March 2012 quarterly 13F filing

Company (Ticker) Portfolio Weight Valued At Change in Shares Share Count Share Price
Celgene Corporation 9.4 $40M 510k 77.52
Ariad Pharmaceuticals 8.5 $36M 2.2M 15.98
Neurocrine Biosciences (NBIX) 6.9 $29M 3.6M 7.97
Questcor Pharmaceuticals 6.8 $29M 760k 37.62
Vivus 6.6 $28M 1.2M 22.36
Mylan 4.7 $20M 840k 23.45
Arena Pharmaceuticals 4.7 $20M 6.4M 3.08
Aegerion Pharmaceuticals 4.5 $19M 1.4M 13.83
Capital Senior Living Corporation 3.5 $15M 1.6M 9.24
Express Scripts 3.2 $14M 250k 54.18
Medivation 3.0 $12M 166k 74.72
Illumina (ILMN) 2.5 $11M 200k 52.61
Repros Therapeutics 2.3 $9.8M 2.3M 4.23
Keryx Biopharmaceuticals 2.3 $9.5M 1.9M 4.98
Human Genome Sciences 2.1 $8.8M 1.1M 8.24
Neptune Technologies Bioreso 2.1 $8.6M 2.7M 3.15
AVI BioPharma ComStk Usd0.0001 2.0 $8.6M 5.6M 1.54
Biogen Idec (BIIB) 1.8 $7.3M 58k 126.01
Seattle Genetics 1.5 $6.1M 300k 20.38
Synta Pharmaceuticals 1.2 $5.2M 1.2M 4.39
Amylin Pharmaceuticals 1.2 $5.0M 200k 24.96
Universal Health Services (UHS) 1.2 $4.9M 118k 41.91
GlaxoSmithKline 1.2 $4.9M 110k 44.91
Protalix BioTherapeutics 1.1 $4.8M 750k 6.37
Infinity Pharmaceuticals (INFIQ) 1.1 $4.7M 396k 11.96
EXACT Sciences Corporation (EXAS) 1.1 $4.6M 415k 11.13
Onyx Pharmaceuticals 1.1 $4.5M 120k 37.68
Endo Pharmaceuticals 1.0 $4.3M 110k 38.73
Sunrise Senior Living 1.0 $4.2M 668k 6.32
WellPoint 0.9 $3.7M 50k 73.80
HeartWare International 0.8 $3.4M 53k 65.70
Alnylam Pharmaceuticals (ALNY) 0.8 $3.4M 310k 11.07
Coronado Biosciences Inc. Common 0.7 $2.8M 331k 8.46
Sagent Pharmaceuticals 0.6 $2.5M 140k 17.87
Ardea Biosciences 0.6 $2.4M 111k 21.76
Cutera 0.6 $2.4M 281k 8.55
Athersys 0.5 $2.3M 1.5M 1.55
Array BioPharma 0.5 $2.1M 620k 3.40
XOMA CORP Common equity shares 0.5 $2.0M 730k 2.77
Progenics Pharmaceuticals 0.3 $1.4M 144k 9.90
Syneron Medical Ltd ord 0.3 $1.3M 121k 10.72
Neostem (NBS) 0.3 $1.3M 3.3M 0.38
Dendreon Corporation 0.3 $1.1M 100k 10.66
Accuray 0.2 $1.1M 150k 7.06
Dynavax Technologies Corporation 0.2 $1.0M 199k 5.03
Trinity Biotech 0.2 $933k 88k 10.67
Ligand Pharmaceuticals In (LGND) 0.2 $916k 57k 15.96
Celldex Therapeutics 0.2 $713k 140k 5.09
Clovis Oncology 0.1 $582k 23k 25.46
Pharmacyclics 0.1 $555k 20k 27.75
Immunomedics 0.1 $526k 145k 3.63
Idenix Pharmaceuticals 0.1 $490k 50k 9.80
Achillion Pharmaceuticals 0.1 $479k 50k 9.58
Endologix 0.1 $440k 30k 14.67
Raptor Pharmaceutical 0.1 $423k 63k 6.77
Response Genetics (RGDXQ) 0.1 $396k 198k 2.00
Orexigen Therapeutics 0.1 $309k 75k 4.10
BioMimetic Therapeutics 0.1 $247k 100k 2.47
Oncothyreon 0.1 $206k 47k 4.36
Synergy Pharmaceuticals 0.1 $203k 50k 4.06
Chemocentryx 0.1 $220k 21k 10.68
LeMaitre Vascular (LMAT) 0.0 $176k 30k 5.91
Tenet Healthcare Corporation 0.0 $106k 20k 5.30
Angeion Corporation 0.0 $109k 19k 5.76
Senesco Technologies 0.0 $112k 446k 0.25
Apricus Bioscience 0.0 $113k 40k 2.82
Conceptus 0.0 $36k 2.5k 14.40
ArQule 0.0 $44k 6.3k 6.98
Community Health Systems (CYH) 0.0 $56k 2.5k 22.40
3SBio (SSRX) 0.0 $37k 2.5k 14.80
Uroplasty 0.0 $45k 15k 3.00
Combimatrix Corporation *w exp 05/01/201 0.0 $7.0k 50k 0.14