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Baker Bros. Advisors LP

Q2 2013 Holdings

Filed 2013-08-14 | 75 holdings | $456.4M | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Acadia Pharmaceuticals Inc.(ACAD)COM004225108$362.2M19,955,12679.3%
Biomarin Pharmaceuticals(BMRN)COM09061G101$43.7M783,3119.6%
Cerus(CERS)COM157085101$37.4M8,455,3068.2%
Biocryst Pharmaceuticals Inc.(BCRX)COM09058V103$8.6M5,563,6151.9%
Pharmacyclics Inc.COM716933106$856.0K10,771,1380.2%
Seattle Genetics Inc.COM812578102$607.9K19,322,9470.1%
Genomic Health Inc.(GHDX)COM37244C101$432.9K13,650,8350.1%
Incyte Genomics Notes 4.75% 10/1/2015CONV BONDS45337CAH5$401.7K$157,758,0000.1%
Synageva Biopharma Corp.COM87159A103$387.2K9,223,1820.1%
Salix 2.75% 5/15/15CONV BONDS795435AC0$334.0K$219,440,0000.1%
Incyte Corp.(INCY)COM45337C102$325.8K14,810,5590.1%
Viropharma Inc.COM928241108$244.3K8,528,6030.1%
Auxilium 1.5% 7/15/2018CONV BONDS05334DAA5$88.1K$91,590,0000.0%
Xoma Corp.COM98419J107$73.6K20,274,5810.0%
Gilead Sciences Inc.(GILD)COM375558103$63.9K1,245,8000.0%
Biomarin Pharmaceuticals Notes 1.875% 4/23/2017CONV BONDS09061GAD3$63.2K$22,898,0000.0%
Aegerion PharmaceuticalsCOM00767E102$58.5K924,3430.0%
Halozyme Therapeutics Inc.(HALO)COM40637H109$52.1K6,553,1500.0%
Repros TherapeuticsCOM76028H209$51.3K2,778,6540.0%
Medivation 2.625% 4/1/17CONV BONDS58501NAA9$50.1K$39,500,0000.0%
Gilead 1.625% 5/1/16CONV BONDS375558AP8$48.7K$21,500,0000.0%
Intermune Inc Notes 2.5% 12/15/17CONV BONDS45884XAF0$43.9K$41,000,0000.0%
Clovis Oncology(CLVSEUR)COM189464100$35.2K525,1130.0%
Vanda Pharmaceuticals, Inc.(VNDA)COM921659108$32.0K3,966,1790.0%
Ariad Pharmaceuticals Inc.COM04033A100$25.4K1,450,0000.0%
Stemline Therapeutics Inc.COM85858C107$21.5K900,0000.0%
Intercept Pharmaceuticals, Inc.(ICPTUSD)COM45845P108$20.8K462,8470.0%
Medivation Inc.COM58501N101$19.6K398,3310.0%
Progenics Pharmaceuticals, Inc.COM743187106$18.7K4,200,0000.0%
Derma SciencesCOM249827502$18.1K1,358,8570.0%
Intermune Inc Notes 5% 3/1/15CONV BONDS45884XAD5$17.8K$16,860,0000.0%
Avanir PharmaceuticalsCOM05348P401$16.5K3,578,5910.0%
Infinity Pharmaceuticals Inc.(INFIQ)COM45665G303$16.5K1,016,4330.0%
Questcor Pharmaceuticals, Inc.COM74835Y101$14.4K315,8460.0%
Synergy PharmaceuticalsCOM871639308$11.3K2,608,2710.0%
Chelsea TherapeuticsCOM163428105$11.0K4,775,7870.0%
Portola Pharmaceuticals, Inc.COM737010108$9.8K399,9140.0%
Insmed Inc.(INSM)COM457669307$9.5K795,8030.0%
Ironwood Pharmaceuticals(IRWD)COM46333X108$9.2K922,1600.0%
Threshold PharmaCOM885807107$8.4K1,595,0480.0%
Synta PharmaceuticalsCOM87162T206$7.0K1,399,0400.0%
Array Biopharma Inc.(ARRYEUR)COM04269X105$6.8K1,500,0000.0%
QLT, Inc.COM746927102$6.7K1,535,8630.0%
Isis PharmaceuticalsCOM464330109$6.6K247,0360.0%
Chemocentryx Inc.(CCXIEUR)COM16383L106$5.3K375,0000.0%
Ambit Biosciences Corp.COM02318X100$5.2K747,9620.0%
XenoportCOM98411C100$5.1K1,034,1120.0%
Anacor PharmaceuticalsCOM32420101$4.9K876,4630.0%
Prothena Corp. PLC(PRTA)COMG72800108$4.8K369,6500.0%
Kythera BiopharmaceuticalsCOM501570105$4.5K165,0000.0%
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