ETF constituents for IBB

Below, a list of constituents for IBB (iShares Biotechnology ETF) is shown. In total, IBB consists of 262 securities.

Note: The data shown here is as of date Jan 31, 2026 (the latest that can be sourced directly from the fund provider).

Click here to go back to the full list of ETFs.

Ticker Name Sector Asset Class Market Value Weight (%)
GILD GILEAD SCIENCES INC Health Care Equity 830963359.44 9.54
VRTX VERTEX PHARMACEUTICALS INC Health Care Equity 781242677.88 8.97
AMGN AMGEN INC Health Care Equity 778168263.6 8.93
REGN REGENERON PHARMACEUTICALS INC Health Care Equity 595725081.1 6.84
ALNY ALNYLAM PHARMACEUTICALS INC Health Care Equity 314022821.12 3.61
INSM INSMED INC Health Care Equity 229085030.08 2.63
ARGX ARGENX SE ADR Health Care Equity 228017842.08 2.62
BIIB BIOGEN INC Health Care Equity 205022264.7 2.35
NTRA NATERA INC Health Care Equity 195718019.03 2.25
ONC BEONE MEDICINES AG Health Care Equity 169215901.32 1.94
UTHR UNITED THERAPEUTICS CORP Health Care Equity 158880337.48 1.82
ILMN ILLUMINA INC Health Care Equity 146926904.92 1.69
INCY INCYTE CORP Health Care Equity 144622926.04 1.66
MRNA MODERNA INC Health Care Equity 136351725.9 1.57
RVMD REVOLUTION MEDICINES INC Health Care Equity 125054181.72 1.44
GMAB GENMAB SPONSORED ADR Health Care Equity 108532965.15 1.25
IONS IONIS PHARMACEUTICALS INC Health Care Equity 96921470.16 1.11
NBIX NEUROCRINE BIOSCIENCES INC Health Care Equity 95670761.24 1.1
ROIV ROIVANT SCIENCES LTD Health Care Equity 90522716.9 1.04
BMRN BIOMARIN PHARMACEUTICAL INC Health Care Equity 84188953.44 0.97
ASND ASCENDIS PHARMA ADR REPRESENTING Health Care Equity 83492241.29 0.96
BBIO BRIDGEBIO PHARMA INC Health Care Equity 80233308.0 0.92
EXEL EXELIXIS INC Health Care Equity 79312590.17 0.91
MEDP MEDPACE HOLDINGS INC Health Care Equity 76955603.4 0.88
USD USD CASH Cash and/or Derivatives Cash 68903656.3 0.79
MDGL MADRIGAL PHARMACEUTICALS INC Health Care Equity 66893371.58 0.77
TECH BIO TECHNE CORP Health Care Equity 66264032.8 0.76
CRL CHARLES RIVER LABORATORIES INTERNA Health Care Equity 64677360.15 0.74
PRAX PRAXIS PRECISION MEDICINES INC Health Care Equity 62751602.03 0.72
HALO HALOZYME THERAPEUTICS INC Health Care Equity 60447770.9 0.69
ARWR ARROWHEAD PHARMACEUTICALS INC Health Care Equity 60333756.07 0.69
PCVX VAXCYTE INC Health Care Equity 58563042.6 0.67
BNTX BIONTECH SE ADR Health Care Equity 55005147.08 0.63
CYTK CYTOKINETICS INC Health Care Equity 54810610.35 0.63
AXSM AXSOME THERAPEUTICS INC Health Care Equity 51197122.56 0.59
RGEN REPLIGEN CORP Health Care Equity 49509739.81 0.57
KRYS KRYSTAL BIOTECH INC Health Care Equity 47916859.83 0.55
ABVX ABIVAX AMERICAN DEPOSITARY SHARES Health Care Equity 44402348.49 0.51
RYTM RHYTHM PHARMACEUTICALS INC Health Care Equity 44059470.38 0.51
PTGX PROTAGONIST THERAPEUTICS INC Health Care Equity 41468332.96 0.48
CRSP CRISPR THERAPEUTICS AG Health Care Equity 41336787.09 0.47
TEM TEMPUS AI INC CLASS A Health Care Equity 40405141.68 0.46
KYMR KYMERA THERAPEUTICS INC Health Care Equity 39977910.6 0.46
PTCT PTC THERAPEUTICS INC Health Care Equity 38126047.39 0.44
ACLX ARCELLX INC Health Care Equity 36718511.55 0.42
ALKS ALKERMES Health Care Equity 36327799.75 0.42
NUVL NUVALENT INC CLASS A Health Care Equity 36109885.0 0.41
COGT COGENT BIOSCIENCES INC Health Care Equity 35596367.01 0.41
MIRM MIRUM PHARMACEUTICALS INC Health Care Equity 35045010.0 0.4
FOLD AMICUS THERAPEUTICS INC Health Care Equity 32263674.64 0.37
BRKR BRUKER CORP Health Care Equity 30551308.68 0.35
ADMA ADMA BIOLOGICS INC Health Care Equity 28423906.42 0.33
ACAD ACADIA PHARMACEUTICALS INC Health Care Equity 28367907.41 0.33
TERN TERNS PHARMACEUTICALS INC Health Care Equity 28079780.67 0.32
CRNX CRINETICS PHARMACEUTICALS INC Health Care Equity 26746937.28 0.31
IBRX IMMUNITYBIO INC Health Care Equity 25710723.72 0.3
SRRK SCHOLAR ROCK HOLDING CORP Health Care Equity 25666461.4 0.29
APGE APOGEE THERAPEUTICS INC Health Care Equity 25181845.59 0.29
GPCR STRUCTURE THERAPEUTICS ADR INC Health Care Equity 24708881.2 0.28
XENE XENON PHARMACEUTICALS INC Health Care Equity 23691286.85 0.27
TARS TARSUS PHARMACEUTICALS INC Health Care Equity 22554894.42 0.26
SYRE SPYRE THERAPEUTICS INC Health Care Equity 21349567.89 0.25
CGON CG ONCOLOGY INC Health Care Equity 21007080.96 0.24
VCYT VERACYTE INC Health Care Equity 20733765.78 0.24
IDYA IDEAYA BIOSCIENCES INC Health Care Equity 20615208.88 0.24
DNLI DENALI THERAPEUTICS INC Health Care Equity 20391966.0 0.23
ARQT ARCUTIS BIOTHERAPEUTICS INC Health Care Equity 19846526.56 0.23
TWST TWIST BIOSCIENCE CORP Health Care Equity 19774827.02 0.23
BEAM BEAM THERAPEUTICS INC Health Care Equity 19549136.48 0.22
TVTX TRAVERE THERAPEUTICS INC Health Care Equity 19296230.85 0.22
TXG 10X GENOMICS INC CLASS A Health Care Equity 19261111.22 0.22
LEGN LEGEND BIOTECH ADR REP CORP Health Care Equity 19004116.48 0.22
NAMS NEWAMSTERDAM PHARMA NV Health Care Equity 18447472.47 0.21
XTSLA BLK CSH FND TREASURY SL AGENCY Cash and/or Derivatives Money Market 17852747.76 0.2
CAI CARIS LIFE SCIENCES INC Health Care Equity 17749481.18 0.2
ADPT ADAPTIVE BIOTECHNOLOGIES CORP Health Care Equity 17570751.64 0.2
IMVT IMMUNOVANT INC Health Care Equity 17557536.0 0.2
ERAS ERASCA INC Health Care Equity 17256569.03 0.2
EWTX EDGEWISE THERAPEUTICS INC Health Care Equity 16842780.9 0.19
APLS APELLIS PHARMACEUTICALS INC Health Care Equity 15987852.0 0.18
ALMS ALUMIS INC Health Care Equity 15981513.92 0.18
RARE ULTRAGENYX PHARMACEUTICAL INC Health Care Equity 15362673.24 0.18
VERA VERA THERAPEUTICS INC CLASS A Health Care Equity 14632484.62 0.17
BCRX BIOCRYST PHARMACEUTICALS INC Health Care Equity 14621739.96 0.17
DYN DYNE THERAPEUTICS INC Health Care Equity 14320205.0 0.16
CNTA CENTESSA PHARMACEUTICALS AMERICAN Health Care Equity 14085452.26 0.16
WVE WAVE LIFE SCIENCES LTD Health Care Equity 13907283.6 0.16
SNDX SYNDAX PHARMACEUTICALS INC Health Care Equity 13856717.52 0.16
RCUS ARCUS BIOSCIENCES INC Health Care Equity 13320120.24 0.15
IRON DISC MEDICINE INC Health Care Equity 13246583.58 0.15
GRFS GRIFOLS ADR REPRESENTING ONE NON-V Health Care Equity 13207151.88 0.15
VCEL VERICEL CORP Health Care Equity 13142569.44 0.15
GRAL GRAIL INC Health Care Equity 13137974.27 0.15
ZYME ZYMEWORKS INC Health Care Equity 12632131.89 0.15
NTLA INTELLIA THERAPEUTICS INC Health Care Equity 12592941.2 0.14
STOK STOKE THERAPEUTICS INC Health Care Equity 12482818.56 0.14
AUPH AURINIA PHARMACEUTICALS INC Health Care Equity 12458645.92 0.14
SMMT SUMMIT THERAPEUTICS INC Health Care Equity 12385544.28 0.14
MLYS MINERALYS THERAPEUTICS INC Health Care Equity 12268162.36 0.14
DFTX DEFINIUM THERAPEUTICS INC Health Care Equity 12168422.2 0.14
SRPT SAREPTA THERAPEUTICS INC Health Care Equity 11964714.24 0.14
AGIO AGIOS PHARMACEUTICALS INC Health Care Equity 11901715.6 0.14
NRIX NURIX THERAPEUTICS INC Health Care Equity 11727431.13 0.13
KOD KODIAK SCIENCES INC Health Care Equity 11502253.44 0.13
ZLAB ZAI LABORATORY ADR REPRESENTING LT Health Care Equity 11462084.46 0.13
OLMA OLEMA PHARMACEUTICALS INC Health Care Equity 11301049.7 0.13
RXRX RECURSION PHARMACEUTICALS INC CLAS Health Care Equity 11170824.06 0.13
NVAX NOVAVAX INC Health Care Equity 11132141.22 0.13
ORKA ORUKA THERAPEUTICS INC Health Care Equity 10648802.58 0.12
ANAB ANAPTYSBIO INC Health Care Equity 10594170.67 0.12
NUVB NUVATION BIO INC CLASS A Health Care Equity 10389032.96 0.12
AMLX AMYLYX PHARMACEUTICALS INC Health Care Equity 10329152.4 0.12
NVCR NOVOCURE LTD Health Care Equity 10056365.28 0.12
BHVN BIOHAVEN LTD Health Care Equity 9788198.86 0.11
GLPG GALAPAGOS ADR REPRESENTING NV Health Care Equity 9507257.83 0.11
ELVN ENLIVEN THERAPEUTICS INC Health Care Equity 9452980.0 0.11
RLAY RELAY THERAPEUTICS INC Health Care Equity 9436032.76 0.11
IOVA IOVANCE BIOTHERAPEUTICS INC Health Care Equity 9350293.84 0.11
IMCR IMMUNOCORE HOLDINGS ADR PLC Health Care Equity 9292360.77 0.11
MAZE MAZE THERAPEUTICS INC Health Care Equity 8810666.14 0.1
TYRA TYRA BIOSCIENCES INC Health Care Equity 8774253.72 0.1
CRVS CORVUS PHARMACEUTICALS INC Health Care Equity 8425241.83 0.1
TRVI TREVI THERAPEUTICS INC Health Care Equity 7873609.17 0.09
RAPT RAPT THERAPEUTICS INC Health Care Equity 7762669.86 0.09
TNGX TANGO THERAPEUTICS INC Health Care Equity 7550651.1 0.09
TSHA TAYSHA GENE THERAPIES INC Health Care Equity 7526640.3 0.09
ATAI ATAIBECKLEY INC Health Care Equity 7496910.72 0.09
MESO MESOBLAST ADR REPRESENTING LTD Health Care Equity 7452901.89 0.09
FTRE FORTREA HOLDINGS INC Health Care Equity 7203514.56 0.08
GERN GERON CORP Health Care Equity 6956041.95 0.08
MNKD MANNKIND CORP Health Care Equity 6717432.27 0.08
VTYX VENTYX BIOSCIENCES INC Health Care Equity 6695623.14 0.08
TBPH THERAVANCE BIOPHARMA INC Health Care Equity 6693992.75 0.08
ABCL ABCELLERA BIOLOGICS INC Health Care Equity 6586153.68 0.08
GLUE MONTE ROSA THERAPEUTICS INC Health Care Equity 6581874.5 0.08
VIR VIR BIOTECHNOLOGY INC Health Care Equity 6532806.96 0.08
MBX MBX BIOSCIENCES INC Health Care Equity 6528356.73 0.07
CDNA CAREDX INC Health Care Equity 6504702.45 0.07
XNCR XENCOR INC Health Care Equity 6168351.6 0.07
SION SIONNA THERAPEUTICS INC Health Care Equity 6128936.96 0.07
RAPP RAPPORT THERAPEUTICS INC Health Care Equity 5957756.74 0.07
CSTL CASTLE BIOSCIENCES INC Health Care Equity 5950813.95 0.07
INBX INHIBRX BIOSCIENCES INC Health Care Equity 5894664.3 0.07
SEPN SEPTERNA INC Health Care Equity 5753833.28 0.07
DAWN DAY ONE BIOPHARMACEUTICALS INC Health Care Equity 5702027.46 0.07
STVN STEVANATO GROUP Health Care Equity 5596971.54 0.06
ORIC ORIC PHARMACEUTICALS INC Health Care Equity 5566018.8 0.06
ARVN ARVINAS INC Health Care Equity 5534461.92 0.06
PHVS PHARVARIS N V NV Health Care Equity 5503120.0 0.06
URGN UROGEN PHARMA LTD Health Care Equity 5491378.32 0.06
KURA KURA ONCOLOGY INC Health Care Equity 5474050.68 0.06
JANX JANUX THERAPEUTICS INC Health Care Equity 5397309.28 0.06
GHRS GH RESEARCH PLC Health Care Equity 5367960.88 0.06
ABUS ARBUTUS BIOPHARMA CORP Health Care Equity 5244335.28 0.06
SANA SANA BIOTECHNOLOGY INC Health Care Equity 5147004.3 0.06
CTMX CYTOMX THERAPEUTICS INC Health Care Equity 5104730.28 0.06
ANNX ANNEXON INC Health Care Equity 5074679.52 0.06
CGEM CULLINAN THERAPEUTICS INC Health Care Equity 4713292.35 0.05
BIOA BIOAGE LABS INC Health Care Equity 4685126.55 0.05
SVRA SAVARA INC Health Care Equity 4591345.51 0.05
RIGL RIGEL PHARMACEUTICALS INC Health Care Equity 4573440.48 0.05
KALV KALVISTA PHARMACEUTICALS INC Health Care Equity 4536564.56 0.05
AVBP ARRIVENT BIOPHARMA INC Health Care Equity 4511708.84 0.05
QURE UNIQURE NV Health Care Equity 4418536.5 0.05
ANRO ALTO NEUROSCIENCE INC Health Care Equity 4223621.16 0.05
BCAX BICARA THERAPEUTICS INC Health Care Equity 4217624.66 0.05
ZBIO ZENAS BIOPHARMA INC Health Care Equity 4191098.76 0.05
IRWD IRONWOOD PHARMA INC CLASS A Health Care Equity 4181965.83 0.05
SPRY ARS PHARMACEUTICALS INC Health Care Equity 4094405.0 0.05
PGEN PRECIGEN INC Health Care Equity 4040133.58 0.05
PHAT PHATHOM PHARMACEUTICALS INC Health Care Equity 3884091.96 0.04
ALT ALTIMMUNE INC Health Care Equity 3864889.6 0.04
CTKB CYTEK BIOSCIENCES INC Health Care Equity 3838519.69 0.04
REPL REPLIMUNE GROUP INC Health Care Equity 3816158.28 0.04
ZVRA ZEVRA THERAPEUTICS INC Health Care Equity 3794911.38 0.04
CMPS COMPASS PATHWAYS ADR PLC Health Care Equity 3780241.92 0.04
RCKT ROCKET PHARMACEUTICALS INC Health Care Equity 3700413.5 0.04
CATX PERSPECTIVE THERAPEUTICS INC Health Care Equity 3681019.35 0.04
OPK OPKO HEALTH INC Health Care Equity 3631884.36 0.04
PSNL PERSONALIS INC Health Care Equity 3595524.42 0.04
FULC FULCRUM THERAPEUTICS INC Health Care Equity 3409767.9 0.04
EBS EMERGENT BIOSOLUTIONS INC Health Care Equity 3390452.64 0.04
VNDA VANDA PHARMACEUTICALS INC Health Care Equity 3364446.85 0.04
MYGN MYRIAD GENETICS INC Health Care Equity 3321930.6 0.04
MGTX MEIRAGTX HOLDINGS PLC Health Care Equity 3302916.78 0.04
PACB PACIFIC BIOSCIENCES OF CALIFORNIA Health Care Equity 3280240.8 0.04
PRME PRIME MEDICINE INC Health Care Equity 3268514.68 0.04
BBOT BRIDGEBIO ONCOLOGY THERAPEUTICS IN Health Care Equity 3254408.64 0.04
ALVO ALVOTECH SA Health Care Equity 3232159.92 0.04
LXEO LEXEO THERAPEUTICS INC Health Care Equity 3213540.91 0.04
RGNX REGENXBIO INC Health Care Equity 3186672.72 0.04
LCTX LINEAGE CELL THERAPEUTICS INC Health Care Equity 3171029.55 0.04
ALLO ALLOGENE THERAPEUTICS INC Health Care Equity 3158855.65 0.04
FDMT 4D MOLECULAR THERAPEUTICS INC Health Care Equity 3159016.71 0.04
ADCT ADC THERAPEUTICS SA Health Care Equity 3103395.02 0.04
PRTA PROTHENA PLC Health Care Equity 3049435.2 0.04
LAB STANDARD BIOTOOLS INC Health Care Equity 3030511.0 0.03
ENTA ENANTA PHARMACEUTICALS INC Health Care Equity 2970966.03 0.03
KROS KEROS THERAPEUTICS INC Health Care Equity 2954817.84 0.03
AVXL ANAVEX LIFE SCIENCES CORP Health Care Equity 2924255.43 0.03
PEPG PEPGEN INC Health Care Equity 2874891.27 0.03
CTNM CONTINEUM THERAPEUTICS INC CLASS A Health Care Equity 2871141.78 0.03
MRVI MARAVAI LIFESCIENCES HOLDINGS INC Health Care Equity 2851261.03 0.03
LENZ LENZ THERAPEUTICS INC Health Care Equity 2849776.56 0.03
ABSI ABSCI CORP Health Care Equity 2840975.2 0.03
SLDB SOLID BIOSCIENCES INC Health Care Equity 2731093.8 0.03
DSGN DESIGN THERAPEUTICS INC Health Care Equity 2390771.46 0.03
AUTL AUTOLUS THERAPEUTICS ADR PLC Health Care Equity 2296695.89 0.03
IMMP IMMUTEP ADS REPRESENTING LTD Health Care Equity 2248254.81 0.03
AVIR ATEA PHARMACEUTICALS INC Health Care Equity 2246014.78 0.03
DNA GINKGO BIOWORKS HOLDINGS INC CLASS Health Care Equity 2225184.45 0.03
KYTX KYVERNA THERAPEUTICS INC Health Care Equity 2224871.42 0.03
AURA AURA BIOSCIENCES INC Health Care Equity 2160156.38 0.02
FLGT FULGENT GENETICS INC Health Care Equity 2120400.8 0.02
ACRS ACLARIS THERAPEUTICS INC Health Care Equity 2109428.8 0.02
CABA CABALETTA BIO INC Health Care Equity 2083158.0 0.02
NGNE NEUROGENE INC Health Care Equity 2043221.84 0.02
NBP NOVABRIDGE BIOSCIENCES ADR Health Care Equity 1936819.65 0.02
TRDA ENTRADA THERAPEUTICS INC Health Care Equity 1842041.12 0.02
CCCC C4 THERAPEUTICS INC Health Care Equity 1839306.91 0.02
LRMR LARIMAR THERAPEUTICS INC Health Care Equity 1823214.61 0.02
TECX TECTONIC THERAPEUTIC INC Health Care Equity 1816310.0 0.02
IMRX IMMUNEERING CORP CLASS A Health Care Equity 1785730.0 0.02
QTRX QUANTERIX CORP Health Care Equity 1781800.05 0.02
ARCT ARCTURUS THERAPEUTICS HOLDINGS INC Health Care Equity 1624350.55 0.02
CADL CANDEL THERAPEUTICS INC Health Care Equity 1568606.48 0.02
EDIT EDITAS MEDICINE INC Health Care Equity 1560244.25 0.02
UPB UPSTREAM BIO INC Health Care Equity 1476251.7 0.02
BCYC BICYCLE THERAPEUTICS ADR PLC Health Care Equity 1455460.11 0.02
OABI OMNIAB INC Health Care Equity 1434878.72 0.02
VYGR VOYAGER THERAPEUTICS INC Health Care Equity 1420881.15 0.02
CLLS CELLECTIS ADR REPRESENTING SA Health Care Equity 1343832.0 0.02
ACIU AC IMMUNE SA Health Care Equity 1328880.96 0.02
HUMA HUMACYTE INC Health Care Equity 1323136.64 0.02
NMRA NEUMORA THERAPEUTICS INC Health Care Equity 1303251.2 0.01
LYEL LYELL IMMUNOPHARMA INC Health Care Equity 1265057.2 0.01
QSI QUANTUM SI INC CLASS A Health Care Equity 1188350.74 0.01
FHTX FOGHORN THERAPEUTICS INC Health Care Equity 1151717.76 0.01
CRBU CARIBOU BIOSCIENCES INC Health Care Equity 1138198.24 0.01
SGMT SAGIMET BIOSCIENCES INC SERIES A Health Care Equity 1126096.4 0.01
SLN SILENCE THERAPEUTICS ADR REPRESENT Health Care Equity 872081.34 0.01
TNYA TENAYA THERAPEUTICS INC Health Care Equity 838007.16 0.01
SGAFT CASH COLLATERAL USD SGAFT Cash and/or Derivatives Cash Collateral and Margins 817000.0 0.01
BDTX BLACK DIAMOND THERAPEUTICS INC Health Care Equity 813000.24 0.01
CDXS CODEXIS INC Health Care Equity 642971.28 0.01
GOSS GOSSAMER BIO INC Health Care Equity 592194.05 0.01
PYXS PYXIS ONCOLOGY INC Health Care Equity 527922.57 0.01
AARD AARDVARK THERAPEUTICS INC Health Care Equity 510400.23 0.01
MENS JYONG BIOTECH LTD Health Care Equity 472744.8 0.01
AKE AKERO THERAPEUTICS CVR Health Care Equity 335370.1 0.0
TKNO ALPHA TEKNOVA INC Health Care Equity 197237.74 0.0
ADRO CHINOOK THERAPEUTICS INC Health Care Equity 54563.54 0.0
THRD THIRD HARMONIC BIO INC Health Care Equity 4034.34 0.0
nan CARTESIAN THERAPEUTICS INC Health Care Equity 1948.96 0.0
nan FUSION PHARMACEUTICALS INC CVR Health Care Equity 1034.0 0.0
nan AKOUOS CVRS Prvt Consumer Staples Equity 1.57 0.0
CRGX CARGO THERAPEUTICS INC Health Care Equity 1.98 0.0
nan OMNIAB INC $12.50 VESTING Prvt Health Care Equity 0.47 0.0
nan OMNIAB INC $15.00 VESTING Prvt Health Care Equity 0.47 0.0
RTYH6 RUSSELL 2000 EMINI CME MAR 26 Cash and/or Derivatives Futures 0.0 0.0
IXCH6 E-MINI HEALTH CARE SECTOR MAR 26 Cash and/or Derivatives Futures 0.0 0.0
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