ETF constituents for IBB

Below, a list of constituents for IBB (iShares Biotechnology ETF) is shown. In total, IBB consists of 260 securities.

Note: The data shown here is as of date Feb 28, 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 783552143.53 9.77
VRTX VERTEX PHARMACEUTICALS INC Health Care Equity 748749189.35 9.33
AMGN AMGEN INC Health Care Equity 722922139.36 9.01
REGN REGENERON PHARMACEUTICALS INC Health Care Equity 547938572.22 6.83
ALNY ALNYLAM PHARMACEUTICALS INC Health Care Equity 298558793.89 3.72
INSM INSMED INC Health Care Equity 212812088.32 2.65
ARGX ARGENX SE ADR Health Care Equity 208086461.75 2.59
BIIB BIOGEN INC Health Care Equity 196393938.7 2.45
NTRA NATERA INC Health Care Equity 181285880.42 2.26
UTHR UNITED THERAPEUTICS CORP Health Care Equity 160515754.74 2.0
ONC BEONE MEDICINES AG Health Care Equity 149621020.2 1.86
MRNA MODERNA INC Health Care Equity 134210126.91 1.67
INCY INCYTE CORP Health Care Equity 129616800.57 1.62
ILMN ILLUMINA INC Health Care Equity 124476725.16 1.55
RVMD REVOLUTION MEDICINES INC Health Care Equity 113981324.4 1.42
GMAB GENMAB SPONSORED ADR Health Care Equity 94753562.02 1.18
NBIX NEUROCRINE BIOSCIENCES INC Health Care Equity 89967086.84 1.12
ROIV ROIVANT SCIENCES LTD Health Care Equity 89603546.9 1.12
IONS IONIS PHARMACEUTICALS INC Health Care Equity 83341611.88 1.04
BBIO BRIDGEBIO PHARMA INC Health Care Equity 81126108.36 1.01
BMRN BIOMARIN PHARMACEUTICAL INC Health Care Equity 81100451.85 1.01
EXEL EXELIXIS INC Health Care Equity 77533031.97 0.97
ASND ASCENDIS PHARMA ADR REPRESENTING Health Care Equity 76948963.07 0.96
MEDP MEDPACE HOLDINGS INC Health Care Equity 72741688.8 0.91
MDGL MADRIGAL PHARMACEUTICALS INC Health Care Equity 65636640.38 0.82
TECH BIO TECHNE CORP Health Care Equity 57472482.87 0.72
PRAX PRAXIS PRECISION MEDICINES INC Health Care Equity 56124360.11 0.7
CRL CHARLES RIVER LABORATORIES INTERNA Health Care Equity 53858142.68 0.67
HALO HALOZYME THERAPEUTICS INC Health Care Equity 53596270.84 0.67
CYTK CYTOKINETICS INC Health Care Equity 52170660.0 0.65
PCVX VAXCYTE INC Health Care Equity 51754739.19 0.65
ARWR ARROWHEAD PHARMACEUTICALS INC Health Care Equity 50274959.24 0.63
AXSM AXSOME THERAPEUTICS INC Health Care Equity 46282544.24 0.58
KRYS KRYSTAL BIOTECH INC Health Care Equity 45353664.39 0.57
BNTX BIONTECH SE ADR Health Care Equity 44889531.9 0.56
ABVX ABIVAX AMERICAN DEPOSITARY SHARES Health Care Equity 44663665.88 0.56
RGEN REPLIGEN CORP Health Care Equity 43929334.08 0.55
RYTM RHYTHM PHARMACEUTICALS INC Health Care Equity 41237080.35 0.51
PTGX PROTAGONIST THERAPEUTICS INC Health Care Equity 40919340.28 0.51
TEM TEMPUS AI INC CLASS A Health Care Equity 36587910.06 0.46
ACLX ARCELLX INC Health Care Equity 35882031.24 0.45
PTCT PTC THERAPEUTICS INC Health Care Equity 35415388.8 0.44
MIRM MIRUM PHARMACEUTICALS INC Health Care Equity 34091800.28 0.42
NUVL NUVALENT INC CLASS A Health Care Equity 33981108.0 0.42
KYMR KYMERA THERAPEUTICS INC Health Care Equity 33445900.0 0.42
CRSP CRISPR THERAPEUTICS AG Health Care Equity 32400174.69 0.4
ALKS ALKERMES Health Care Equity 32398391.84 0.4
FOLD AMICUS THERAPEUTICS INC Health Care Equity 31533039.42 0.39
COGT COGENT BIOSCIENCES INC Health Care Equity 31528597.99 0.39
XENE XENON PHARMACEUTICALS INC Health Care Equity 31343875.5 0.39
TERN TERNS PHARMACEUTICALS INC Health Care Equity 28878987.2 0.36
BRKR BRUKER CORP Health Care Equity 26280490.0 0.33
ACAD ACADIA PHARMACEUTICALS INC Health Care Equity 25847112.57 0.32
APGE APOGEE THERAPEUTICS INC Health Care Equity 25449970.61 0.32
ADMA ADMA BIOLOGICS INC Health Care Equity 25042279.01 0.31
SRRK SCHOLAR ROCK HOLDING CORP Health Care Equity 24060999.6 0.3
CRNX CRINETICS PHARMACEUTICALS INC Health Care Equity 23398893.9 0.29
CGON CG ONCOLOGY INC Health Care Equity 22321290.75 0.28
GPCR STRUCTURE THERAPEUTICS ADR INC Health Care Equity 20896880.86 0.26
IDYA IDEAYA BIOSCIENCES INC Health Care Equity 19927284.72 0.25
SYRE SPYRE THERAPEUTICS INC Health Care Equity 19756368.18 0.25
DNLI DENALI THERAPEUTICS INC Health Care Equity 19563735.6 0.24
TARS TARSUS PHARMACEUTICALS INC Health Care Equity 19310106.88 0.24
LEGN LEGEND BIOTECH ADR REP CORP Health Care Equity 19096177.2 0.24
IBRX IMMUNITYBIO INC Health Care Equity 18738800.12 0.23
TWST TWIST BIOSCIENCE CORP Health Care Equity 18052267.5 0.22
ARQT ARCUTIS BIOTHERAPEUTICS INC Health Care Equity 17860773.46 0.22
TVTX TRAVERE THERAPEUTICS INC Health Care Equity 17508713.75 0.22
VCYT VERACYTE INC Health Care Equity 17315449.11 0.22
BEAM BEAM THERAPEUTICS INC Health Care Equity 16971543.9 0.21
ERAS ERASCA INC Health Care Equity 16949713.05 0.21
EWTX EDGEWISE THERAPEUTICS INC Health Care Equity 16552418.82 0.21
NAMS NEWAMSTERDAM PHARMA NV Health Care Equity 16308468.54 0.2
DYN DYNE THERAPEUTICS INC Health Care Equity 15557479.98 0.19
TXG 10X GENOMICS INC CLASS A Health Care Equity 15363408.28 0.19
IMVT IMMUNOVANT INC Health Care Equity 15360053.52 0.19
CAI CARIS LIFE SCIENCES INC Health Care Equity 14778279.07 0.18
SNDX SYNDAX PHARMACEUTICALS INC Health Care Equity 14644215.7 0.18
VERA VERA THERAPEUTICS INC CLASS A Health Care Equity 14507237.58 0.18
RARE ULTRAGENYX PHARMACEUTICAL INC Health Care Equity 14117513.67 0.18
CNTA CENTESSA PHARMACEUTICALS AMERICAN Health Care Equity 14104641.84 0.18
BCRX BIOCRYST PHARMACEUTICALS INC Health Care Equity 13823522.3 0.17
APLS APELLIS PHARMACEUTICALS INC Health Care Equity 13822714.77 0.17
ADPT ADAPTIVE BIOTECHNOLOGIES CORP Health Care Equity 13211778.15 0.16
ALMS ALUMIS INC Health Care Equity 13078500.39 0.16
WVE WAVE LIFE SCIENCES LTD Health Care Equity 13053549.9 0.16
DFTX DEFINIUM THERAPEUTICS INC Health Care Equity 12454674.08 0.16
RCUS ARCUS BIOSCIENCES INC Health Care Equity 12318836.0 0.15
AUPH AURINIA PHARMACEUTICALS INC Health Care Equity 12282901.2 0.15
ZYME ZYMEWORKS INC Health Care Equity 12271084.89 0.15
SRPT SAREPTA THERAPEUTICS INC Health Care Equity 12190296.72 0.15
STOK STOKE THERAPEUTICS INC Health Care Equity 12123033.6 0.15
ANAB ANAPTYSBIO INC Health Care Equity 12034302.45 0.15
VCEL VERICEL CORP Health Care Equity 11636856.66 0.15
IRON DISC MEDICINE INC Health Care Equity 11602762.56 0.14
GRFS GRIFOLS ADR REPRESENTING ONE NON-V Health Care Equity 11552738.16 0.14
SMMT SUMMIT THERAPEUTICS INC Health Care Equity 11533299.14 0.14
ZLAB ZAI LABORATORY ADR REPRESENTING LT Health Care Equity 11465921.49 0.14
DAWN DAY ONE BIOPHARMACEUTICALS INC Health Care Equity 11413992.48 0.14
NRIX NURIX THERAPEUTICS INC Health Care Equity 11287512.95 0.14
NVAX NOVAVAX INC Health Care Equity 11066835.0 0.14
MLYS MINERALYS THERAPEUTICS INC Health Care Equity 11021798.34 0.14
TNGX TANGO THERAPEUTICS INC Health Care Equity 11009408.2 0.14
AGIO AGIOS PHARMACEUTICALS INC Health Care Equity 10980350.97 0.14
GRAL GRAIL INC Health Care Equity 10767880.32 0.13
NTLA INTELLIA THERAPEUTICS INC Health Care Equity 10230964.4 0.13
RLAY RELAY THERAPEUTICS INC Health Care Equity 9950127.0 0.12
RXRX RECURSION PHARMACEUTICALS INC CLAS Health Care Equity 9890786.22 0.12
ORKA ORUKA THERAPEUTICS INC Health Care Equity 9888940.74 0.12
IOVA IOVANCE BIOTHERAPEUTICS INC Health Care Equity 9819953.55 0.12
MAZE MAZE THERAPEUTICS INC Health Care Equity 9797592.53 0.12
KOD KODIAK SCIENCES INC Health Care Equity 9716335.59 0.12
TYRA TYRA BIOSCIENCES INC Health Care Equity 9502920.0 0.12
AMLX AMYLYX PHARMACEUTICALS INC Health Care Equity 9486068.98 0.12
ELVN ENLIVEN THERAPEUTICS INC Health Care Equity 9027210.16 0.11
XTSLA BLK CSH FND TREASURY SL AGENCY Cash and/or Derivatives Money Market 9004146.02 0.11
NVCR NOVOCURE LTD Health Care Equity 8731510.2 0.11
GLPG GALAPAGOS ADR REPRESENTING NV Health Care Equity 8708652.06 0.11
IMCR IMMUNOCORE HOLDINGS ADR PLC Health Care Equity 8630640.96 0.11
BHVN BIOHAVEN LTD Health Care Equity 7996636.66 0.1
ATAI ATAIBECKLEY INC Health Care Equity 7589285.68 0.09
NUVB NUVATION BIO INC CLASS A Health Care Equity 7573153.19 0.09
MESO MESOBLAST ADR REPRESENTING LTD Health Care Equity 7567837.53 0.09
TSHA TAYSHA GENE THERAPIES INC Health Care Equity 7489364.51 0.09
CRVS CORVUS PHARMACEUTICALS INC Health Care Equity 7367481.8 0.09
GERN GERON CORP Health Care Equity 7039376.0 0.09
QURE UNIQURE NV Health Care Equity 7029913.66 0.09
OLMA OLEMA PHARMACEUTICALS INC Health Care Equity 6846358.89 0.09
TRVI TREVI THERAPEUTICS INC Health Care Equity 6836088.0 0.09
SION SIONNA THERAPEUTICS INC Health Care Equity 6503070.56 0.08
VIR VIR BIOTECHNOLOGY INC Health Care Equity 6475569.96 0.08
MNKD MANNKIND CORP Health Care Equity 6097463.22 0.08
FTRE FORTREA HOLDINGS INC Health Care Equity 6018660.24 0.08
RAPP RAPPORT THERAPEUTICS INC Health Care Equity 5886180.36 0.07
ABCL ABCELLERA BIOLOGICS INC Health Care Equity 5848223.49 0.07
XNCR XENCOR INC Health Care Equity 5689526.94 0.07
CDNA CAREDX INC Health Care Equity 5575546.55 0.07
GLUE MONTE ROSA THERAPEUTICS INC Health Care Equity 5574060.4 0.07
JANX JANUX THERAPEUTICS INC Health Care Equity 5488375.49 0.07
KURA KURA ONCOLOGY INC Health Care Equity 5461422.72 0.07
MBX MBX BIOSCIENCES INC Health Care Equity 5410085.85 0.07
URGN UROGEN PHARMA LTD Health Care Equity 5308325.32 0.07
STVN STEVANATO GROUP Health Care Equity 5304877.2 0.07
CSTL CASTLE BIOSCIENCES INC Health Care Equity 5264787.6 0.07
SEPN SEPTERNA INC Health Care Equity 5195093.8 0.06
INBX INHIBRX BIOSCIENCES INC Health Care Equity 5160355.2 0.06
GHRS GH RESEARCH PLC Health Care Equity 5094672.8 0.06
PHVS PHARVARIS N V NV Health Care Equity 5079759.18 0.06
ARVN ARVINAS INC Health Care Equity 5046375.36 0.06
ANNX ANNEXON INC Health Care Equity 4905748.48 0.06
TBPH THERAVANCE BIOPHARMA INC Health Care Equity 4812148.83 0.06
ABUS ARBUTUS BIOPHARMA CORP Health Care Equity 4753270.08 0.06
KALV KALVISTA PHARMACEUTICALS INC Health Care Equity 4732991.12 0.06
ORIC ORIC PHARMACEUTICALS INC Health Care Equity 4619386.8 0.06
AVBP ARRIVENT BIOPHARMA INC Health Care Equity 4521523.13 0.06
CTMX CYTOMX THERAPEUTICS INC Health Care Equity 4488006.94 0.06
BCAX BICARA THERAPEUTICS INC Health Care Equity 4440084.14 0.06
ANRO ALTO NEUROSCIENCE INC Health Care Equity 4387134.96 0.05
BIOA BIOAGE LABS INC Health Care Equity 4216057.47 0.05
ZVRA ZEVRA THERAPEUTICS INC Health Care Equity 4099156.95 0.05
CGEM CULLINAN THERAPEUTICS INC Health Care Equity 4035149.1 0.05
SVRA SAVARA INC Health Care Equity 3997639.52 0.05
REPL REPLIMUNE GROUP INC Health Care Equity 3894838.98 0.05
ZBIO ZENAS BIOPHARMA INC Health Care Equity 3872641.5 0.05
IRWD IRONWOOD PHARMA INC CLASS A Health Care Equity 3817030.62 0.05
SANA SANA BIOTECHNOLOGY INC Health Care Equity 3694521.42 0.05
VNDA VANDA PHARMACEUTICALS INC Health Care Equity 3688213.61 0.05
SPRY ARS PHARMACEUTICALS INC Health Care Equity 3546858.56 0.04
RCKT ROCKET PHARMACEUTICALS INC Health Care Equity 3531408.72 0.04
PGEN PRECIGEN INC Health Care Equity 3529014.32 0.04
CATX PERSPECTIVE THERAPEUTICS INC Health Care Equity 3470998.16 0.04
CMPS COMPASS PATHWAYS ADR PLC Health Care Equity 3441818.64 0.04
PHAT PHATHOM PHARMACEUTICALS INC Health Care Equity 3416055.44 0.04
RIGL RIGEL PHARMACEUTICALS INC Health Care Equity 3387563.2 0.04
CTKB CYTEK BIOSCIENCES INC Health Care Equity 3341228.0 0.04
FULC FULCRUM THERAPEUTICS INC Health Care Equity 3286309.67 0.04
OPK OPKO HEALTH INC Health Care Equity 3275379.48 0.04
SLDB SOLID BIOSCIENCES INC Health Care Equity 3274120.89 0.04
ALT ALTIMMUNE INC Health Care Equity 3224347.2 0.04
MGTX MEIRAGTX HOLDINGS PLC Health Care Equity 3209418.84 0.04
ADCT ADC THERAPEUTICS SA Health Care Equity 3113412.45 0.04
MYGN MYRIAD GENETICS INC Health Care Equity 3100255.8 0.04
RGNX REGENXBIO INC Health Care Equity 3018718.64 0.04
EBS EMERGENT BIOSOLUTIONS INC Health Care Equity 2955775.32 0.04
PRTA PROTHENA PLC Health Care Equity 2911646.64 0.04
AVXL ANAVEX LIFE SCIENCES CORP Health Care Equity 2893746.15 0.04
LXEO LEXEO THERAPEUTICS INC Health Care Equity 2880781.41 0.04
BBOT BRIDGEBIO ONCOLOGY THERAPEUTICS IN Health Care Equity 2841529.9 0.04
ALLO ALLOGENE THERAPEUTICS INC Health Care Equity 2838388.15 0.04
AVIR ATEA PHARMACEUTICALS INC Health Care Equity 2815089.0 0.04
ALVO ALVOTECH SA Health Care Equity 2785491.48 0.03
FDMT 4D MOLECULAR THERAPEUTICS INC Health Care Equity 2758240.55 0.03
PEPG PEPGEN INC Health Care Equity 2686664.4 0.03
ENTA ENANTA PHARMACEUTICALS INC Health Care Equity 2646771.93 0.03
TECX TECTONIC THERAPEUTIC INC Health Care Equity 2597419.12 0.03
PRME PRIME MEDICINE INC Health Care Equity 2522084.26 0.03
PSNL PERSONALIS INC Health Care Equity 2521340.59 0.03
MRVI MARAVAI LIFESCIENCES HOLDINGS INC Health Care Equity 2505068.51 0.03
CTNM CONTINEUM THERAPEUTICS INC CLASS A Health Care Equity 2500829.1 0.03
PACB PACIFIC BIOSCIENCES OF CALIFORNIA Health Care Equity 2479055.24 0.03
LCTX LINEAGE CELL THERAPEUTICS INC Health Care Equity 2476917.02 0.03
LAB STANDARD BIOTOOLS INC Health Care Equity 2471350.31 0.03
LENZ LENZ THERAPEUTICS INC Health Care Equity 2373798.78 0.03
ACRS ACLARIS THERAPEUTICS INC Health Care Equity 2340257.4 0.03
DSGN DESIGN THERAPEUTICS INC Health Care Equity 2257646.28 0.03
KROS KEROS THERAPEUTICS INC Health Care Equity 2250664.08 0.03
ABSI ABSCI CORP Health Care Equity 2249699.0 0.03
IMMP IMMUTEP ADS REPRESENTING LTD Health Care Equity 2240476.92 0.03
KYTX KYVERNA THERAPEUTICS INC Health Care Equity 2210443.42 0.03
NGNE NEUROGENE INC Health Care Equity 2118232.4 0.03
FLGT FULGENT GENETICS INC Health Care Equity 2113332.8 0.03
TRDA ENTRADA THERAPEUTICS INC Health Care Equity 2060536.06 0.03
AURA AURA BIOSCIENCES INC Health Care Equity 2018126.95 0.03
DNA GINKGO BIOWORKS HOLDINGS INC CLASS Health Care Equity 1947449.6 0.02
CABA CABALETTA BIO INC Health Care Equity 1941255.36 0.02
AUTL AUTOLUS THERAPEUTICS ADR PLC Health Care Equity 1935672.38 0.02
IMRX IMMUNEERING CORP CLASS A Health Care Equity 1876402.3 0.02
EDIT EDITAS MEDICINE INC Health Care Equity 1776971.3 0.02
UPB UPSTREAM BIO INC Health Care Equity 1743672.92 0.02
LRMR LARIMAR THERAPEUTICS INC Health Care Equity 1676688.39 0.02
VYGR VOYAGER THERAPEUTICS INC Health Care Equity 1607436.03 0.02
NBP NOVABRIDGE BIOSCIENCES ADR Health Care Equity 1591130.94 0.02
CCCC C4 THERAPEUTICS INC Health Care Equity 1538193.25 0.02
CADL CANDEL THERAPEUTICS INC Health Care Equity 1473661.68 0.02
OABI OMNIAB INC Health Care Equity 1454040.8 0.02
QTRX QUANTERIX CORP Health Care Equity 1360003.4 0.02
ACIU AC IMMUNE SA Health Care Equity 1334463.0 0.02
ARCT ARCTURUS THERAPEUTICS HOLDINGS INC Health Care Equity 1312843.0 0.02
HUMA HUMACYTE INC Health Care Equity 1298336.88 0.02
TNYA TENAYA THERAPEUTICS INC Health Care Equity 1265510.74 0.02
LYEL LYELL IMMUNOPHARMA INC Health Care Equity 1254110.5 0.02
BCYC BICYCLE THERAPEUTICS ADR PLC Health Care Equity 1234109.52 0.02
NMRA NEUMORA THERAPEUTICS INC Health Care Equity 1232807.96 0.02
QSI QUANTUM SI INC CLASS A Health Care Equity 1197893.6 0.01
CDXS CODEXIS INC Health Care Equity 1172285.37 0.01
CLLS CELLECTIS ADR REPRESENTING SA Health Care Equity 1135303.56 0.01
CRBU CARIBOU BIOSCIENCES INC Health Care Equity 1127078.82 0.01
FHTX FOGHORN THERAPEUTICS INC Health Care Equity 1021323.12 0.01
SGMT SAGIMET BIOSCIENCES INC SERIES A Health Care Equity 1013414.52 0.01
SLN SILENCE THERAPEUTICS ADR REPRESENT Health Care Equity 979821.69 0.01
BDTX BLACK DIAMOND THERAPEUTICS INC Health Care Equity 687018.72 0.01
SGAFT CASH COLLATERAL USD SGAFT Cash and/or Derivatives Cash Collateral and Margins 623000.0 0.01
GOSS GOSSAMER BIO INC Health Care Equity 612726.44 0.01
PYXS PYXIS ONCOLOGY INC Health Care Equity 529696.71 0.01
AARD AARDVARK THERAPEUTICS INC Health Care Equity 473194.86 0.01
MENS JYONG BIOTECH LTD Health Care Equity 445359.6 0.01
AKE AKERO THERAPEUTICS CVR Health Care Equity 335370.1 0.0
TKNO ALPHA TEKNOVA INC Health Care Equity 213292.95 0.0
ADRO CHINOOK THERAPEUTICS INC Health Care Equity 54563.54 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
THRD THIRD HARMONIC BIO INC Health Care Equity 1.34 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
USD USD CASH Cash and/or Derivatives Cash -507011.38 -0.01
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