Fund Holdings — BAKER BROS. ADVISORS LP

Total Portfolio Value
$17.42B
Total Bought
$931.22M
Total Sold
$304.13M
Net Transaction
+$627.09M
Filing Period:
Securities
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SharesValue ($K)
Q4 2025
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Q1 2026
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Change
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Q4 2025
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Q1 2026
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Weight (%)
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Change
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Praxis Precision Medicines, Inc.(PRAX)1,126,4881,753,198+626,710332,021564,8633.24%+232,842
Kodiak Sciences Inc.(KOD)19,919,18619,919,1860556,940759,3194.36%+202,379
Revolution Medicines, Inc.(RVMD)9,455,3579,555,357+100,000753,119929,2585.34%+176,139
Celcuity Inc.(CELC)7,915,7927,915,7920789,521903,5085.19%+113,987
Alkermes plc(ALKS)10,012,26710,012,2670280,143354,0342.03%+73,891
Insmed Incorporated(INSM)6,592,7467,421,111+828,3651,147,4021,213,5006.97%+66,099
Summit Therapeutics Inc.(SMMT)36,391,06336,391,0630636,480689,9753.96%+53,495
Kymera Therapeutics, Inc.(KYMR)8,657,2428,657,2420673,620721,0624.14%+47,442
Edgewise Therapeutics, Inc.(EWTX)6,575,9406,575,9400163,182207,1421.19%+43,960
Mirum Pharmaceuticals, Inc.(MIRM)0445,975+445,975041,1990.24%+41,199
Dianthus Therapeutics, Inc.(DNTH)789,759852,164+62,40532,54671,5140.41%+38,968
Enliven Therapeutics, Inc.271,406905,191+633,7854,18035,4830.20%+31,304
GRAIL, Inc.(GRAL)2,085,3334,028,614+1,943,281178,484208,1991.20%+29,715
Alumis Inc.1,562,5002,012,500+450,00015,25044,3350.25%+29,085
Kiniksa Pharmaceuticals International, plc(KNSA)2,826,2462,826,2460116,583136,0840.78%+19,501
Evommune, Inc.(EVMN)0847,390+847,390019,4810.11%+19,481
Aktis Oncology, Inc.(AKTS)0996,351+996,351017,8250.10%+17,825
Generate Biomedicines, Inc.(GENB)01,423,602+1,423,602017,7950.10%+17,795
Spyre Therapeutics, Inc.(SYRE)1,000,0001,000,000032,76050,4400.29%+17,680
Roivant Sciences Ltd.(ROIV)5,555,0174,867,723-687,294120,544134,8360.77%+14,292
COMPASS Pathways plc(CMPS)02,344,720+2,344,720012,9660.07%+12,966
Ionis Pharmaceuticals, Inc.(IONS)1,791,8412,047,727+255,886141,753153,7640.88%+12,011
Entrada Therapeutics, Inc.(TRDA)5,072,7305,072,730052,14864,0180.37%+11,870
AbCellera Biologics Inc.(ABCL)27,525,64030,275,938+2,750,29894,138105,6630.61%+11,525
Denali Therapeutics Inc.(DNLI)3,731,6953,731,695061,61071,6490.41%+10,038
Centessa Pharmaceuticals plc670,751670,751016,77526,6420.15%+9,867
Crinetics Pharmaceuticals, Inc.(CRNX)1,648,8692,351,465+702,59676,75585,4050.49%+8,650
Celcuity Inc.(CELC)030,750,000+30,750,00066,58074,8690.43%+8,289
Design Therapeutics, Inc.(DSGN)2,233,0992,585,978+352,87920,94627,5150.16%+6,568
IDEAYA Biosciences, Inc.(IDYA)3,618,8263,946,515+327,689125,103131,4980.76%+6,395
Eikon Therapeutics, Inc.(EIKN)0555,555+555,55505,8780.03%+5,878
CytomX Therapeutics, Inc.(CTMX)4,250,8264,975,826+725,00018,10923,3860.13%+5,278
Prelude Therapeutics Inc.(PRLD)10,123,82410,123,824029,35934,6230.20%+5,264
Xenon Pharmaceuticals Inc.(XENE)370,208370,208016,59321,5280.12%+4,935
Monte Rosa Therapeutics, Inc.(GLUE)4,345,7364,345,736068,14171,4870.41%+3,346
Verastem, Inc.(VSTM)0584,757+584,75703,0990.02%+3,099
Celldex Therapeutics, Inc.(CLDX)665,370665,370018,07121,1060.12%+3,034
Stoke Therapeutics, Inc.(STOK)3,336,6973,336,6970105,907108,6430.62%+2,736
Arcus Biosciences, Inc.(RCUS)270,000415,621+145,6216,4348,9770.05%+2,543
DBV Technologies S.A.(DBVT)1,461,4251,461,425028,01630,5290.18%+2,514
Contineum Therapeutics, Inc.(CTNM)1,420,8381,420,838016,24018,5560.11%+2,316
Relay Therapeutics, Inc.(RLAY)1,160,1171,160,11709,81511,5430.07%+1,729
Rapport Therapeutics, Inc.(RAPP)1,547,0901,547,090046,93948,4080.28%+1,470
MapLight Therapeutics, Inc.(MPLT)364,705364,70506,4067,4140.04%+1,008
LB Pharmaceuticals Inc.(LBRX)200,000200,00004,4524,9320.03%+480
Pharvaris N.V.
COM
375,000375,000010,40610,5940.06%+188
Tyra Biosciences, Inc.(TYRA)10,60710,60702794060.00%+127
Wave Life Sciences Ltd.(WVE)344,063822,638+478,5755,8495,9640.03%+115
TScan Therapeutics, Inc.(TCRX)2,784,7922,784,79202,7852,8130.02%+28
Surrozen, Inc.(SRZN)833,333833,333017130.00%-3
vTv Therapeutics, Inc.(VTVT)148,314148,31405,9315,8820.03%-49
Acrivon Therapeutics, Inc.22,8090-22,809550—-55
Tectonic Therapeutic, Inc.(TECX)903,400607,788-295,61218,84518,7870.11%-58
Protara Therapeutics, Inc.(TARA)971,614971,61405,1795,0620.03%-117
Skye Bioscience, Inc.(SKYE)1,450,6381,575,243+124,6051,0889680.01%-119
Aligos Therapeutics, Inc.(ALGS)83,05583,05507746170.00%-157
Sana Biotechnology, Inc.(SANA)310,483310,48301,2648940.01%-369
Sionna Therapeutics, Inc.(SION)400,000400,000016,45616,0360.09%-420
Neurogene Inc.(NGNE)991,691991,691020,42919,9920.11%-436
Sagimet Biosciences Inc.(SGMT)952,996952,99605,6424,9790.03%-662
KALA BIO, Inc.(KALA)1,804,0550-1,804,0551,0030—-1,003
Absci Corporation2,134,8032,134,80307,4506,4040.04%-1,046
Dyne Therapeutics, Inc.(DYN)813,449813,449015,91114,7480.08%-1,163
Jade Biosciences, Inc.1,641,1371,641,137025,32323,0580.13%-2,265
Cerus Corporation(CERS)10,008,34510,008,345020,61718,2150.10%-2,402
argenx SE(ARGX)25,17425,174021,17018,3830.11%-2,787
Immunovant, Inc.(IMVT)5,457,8815,457,8810138,739135,5740.78%-3,166
Vir Biotechnology, Inc.(VIR)542,5390-542,5393,2720—-3,272
4D Molecular Therapeutics, Inc.475,7370-475,7373,5680—-3,568
Xencor, Inc.(XNCR)1,102,1061,102,106016,87313,2910.08%-3,582
Taysha Gene Therapies, Inc.(TSHA)4,004,7564,004,756022,02617,9010.10%-4,125
Disc Medicine, Inc.(IRON)337,050349,657+12,60726,76522,3570.13%-4,408
Sera Prognostics, Inc.(SERA)5,498,1705,498,170016,22011,1610.06%-5,058
Nuvalent, Inc.143,9370-143,93714,4790—-14,479
Nurix Therapeutics, Inc.(NRIX)4,658,5564,658,556088,37372,2080.41%-16,165
Arrowhead Pharmaceuticals, Inc.(ARWR)2,175,6451,992,783-182,862144,441124,9470.72%-19,494
Immatics N.V.(IMTX)12,094,09410,916,693-1,177,401126,988107,4200.62%-19,568
Abivax S.A.(ABVX)875,796875,7960118,10597,5200.56%-20,586
Ventyx Biosciences, Inc.2,349,2800-2,349,28021,2140—-21,214
BioCryst Pharmaceuticals, Inc.(BCRX)2,822,7270-2,822,72722,0170—-22,017
Viridian Therapeutics, Inc.(VRDN)1,971,6781,971,678061,35938,5660.22%-22,793
Replimune Group, Inc.(REPL)11,045,33611,045,3360107,36184,4970.49%-22,864
BioNTech SE(BNTX)368,923119,743-249,18035,12110,6430.06%-24,479
Bicycle Therapeutics plc10,885,35710,885,357077,06850,5080.29%-26,560
Structure Therapeutics Inc.1,432,5291,432,529099,63269,0480.40%-30,584
Terns Pharmaceuticals, Inc.950,0000-950,00038,3800—-38,380
Immunocore Holdings plc(IMCR)2,322,656734,397-1,588,25980,61922,1420.13%-58,477
BeOne Medicines Ltd.(ONC)8,799,0538,799,05302,673,2402,613,05515.00%-60,186
Ultragenyx Pharmaceutical Inc.(RARE)2,772,6920-2,772,69263,7720—-63,772
Rhythm Pharmaceuticals, Inc.(RYTM)5,604,4835,604,4830599,904487,4222.80%-112,482
Madrigal Pharmaceuticals, Inc.(MDGL)2,141,7012,141,70101,247,1981,121,1166.44%-126,082
Incyte Corporation(INCY)30,743,99130,744,412+4213,036,5842,893,66416.62%-142,920
ACADIA Pharmaceuticals Inc.42,896,69042,896,69001,145,771954,8805.48%-190,890
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BAKER BROS. ADVISORS LP — 13F Holdings — Q1 2026 | TickerTrail