iShares Biotechnology ETF (IBB)

IBB Holdings List

As of Jun 26, 2025

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No.	Symbol	Name	% Weight	Shares
1	VRTX	Vertex Pharmaceuticals Incorporated	7.68%	927,858
2	GILD	Gilead Sciences, Inc.	7.48%	3,725,806
3	AMGN	Amgen Inc.	7.41%	1,423,249
4	REGN	Regeneron Pharmaceuticals, Inc.	6.34%	652,482
5	ALNY	Alnylam Pharmaceuticals, Inc.	4.64%	781,719
6	IQV	IQVIA Holdings Inc.	3.17%	1,075,306
7	MTD	Mettler-Toledo International Inc.	2.89%	129,738
8	NTRA	Natera, Inc.	2.54%	810,642
9	ARGX	argenx SE	2.52%	241,333
10	WAT	Waters Corporation	2.47%	372,339
11	BIIB	Biogen Inc.	2.17%	917,169
12	INSM	Insmed Incorporated	2.12%	1,115,882
13	BNTX	BioNTech SE	1.86%	938,826
14	ILMN	Illumina, Inc.	1.69%	963,742
15	ONC	BeOne Medicines Ltd.	1.66%	349,787
16	INCY	Incyte Corporation	1.58%	1,195,979
17	UTHR	United Therapeutics Corporation	1.46%	275,797
18	NBIX	Neurocrine Biosciences, Inc.	1.42%	598,580
19	EXEL	Exelixis, Inc.	1.33%	1,654,950
20	BMRN	BioMarin Pharmaceutical Inc.	1.20%	1,185,420
21	MRNA	Moderna, Inc.	1.10%	2,147,445
22	GMAB	Genmab A/S	0.98%	2,543,121
23	TECH	Bio-Techne Corporation	0.96%	971,814
24	BPMC	Blueprint Medicines Corporation	0.93%	390,070
25	CRL	Charles River Laboratories International, Inc.	0.86%	304,464
26	BBIO	BridgeBio Pharma, Inc.	0.85%	1,007,946
27	MEDP	Medpace Holdings, Inc.	0.84%	146,194
28	ASND	Ascendis Pharma A/S	0.77%	239,980
29	RGEN	Repligen Corporation	0.77%	333,043
30	HALO	Halozyme Therapeutics, Inc.	0.75%	764,088
31	TEM	Tempus AI, Inc.	0.73%	574,085
32	IONS	Ionis Pharmaceuticals, Inc.	0.72%	973,592
33	RVMD	Revolution Medicines, Inc.	0.71%	1,015,305
34	MDGL	Madrigal Pharmaceuticals, Inc.	0.70%	125,930
35	ROIV	Roivant Sciences Ltd.	0.57%	2,618,785
36	ALKS	Alkermes plc	0.54%	1,011,175
37	VRNA	Verona Pharma plc	0.54%	304,235
38	BRKR	Bruker Corporation	0.51%	646,107
39	ADMA	ADMA Biologics, Inc.	0.50%	1,444,637
40	AXSM	Axsome Therapeutics, Inc.	0.49%	253,631
41	PCVX	Vaxcyte, Inc.	0.48%	784,197
42	AKRO	Akero Therapeutics, Inc.	0.47%	449,613
43	CYTK	Cytokinetics, Incorporated	0.46%	731,981
44	CRSP	CRISPR Therapeutics AG	0.45%	519,154
45	LEGN	Legend Biotech Corporation	0.45%	717,884
46	PTCT	PTC Therapeutics, Inc.	0.45%	483,688
47	ACAD	ACADIA Pharmaceuticals Inc.	0.43%	1,041,203
48	RYTM	Rhythm Pharmaceuticals, Inc.	0.42%	365,090
49	KRYS	Krystal Biotech, Inc.	0.41%	155,578
50	NUVL	Nuvalent, Inc.	0.41%	278,926

As of Jun 26, 2025

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