iShares Biotechnology ETF (IBB)

IBB Holdings List

As of Jul 3, 2025

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No.	Symbol	Name	% Weight	Shares
1	VRTX	Vertex Pharmaceuticals Incorporated	7.80%	922,386
2	AMGN	Amgen Inc.	7.76%	1,414,881
3	GILD	Gilead Sciences, Inc.	7.61%	3,704,037
4	REGN	Regeneron Pharmaceuticals, Inc.	6.53%	648,580
5	ALNY	Alnylam Pharmaceuticals, Inc.	4.74%	777,027
6	IQV	IQVIA Holdings Inc.	3.23%	1,068,880
7	MTD	Mettler-Toledo International Inc.	2.87%	128,957
8	ARGX	argenx SE	2.40%	239,912
9	NTRA	Natera, Inc.	2.40%	805,774
10	WAT	Waters Corporation	2.38%	370,107
11	BIIB	Biogen Inc.	2.23%	911,662
12	INSM	Insmed Incorporated	2.00%	1,109,184
13	BNTX	BioNTech SE	1.89%	933,297
14	ILMN	Illumina, Inc.	1.78%	957,991
15	ONC	BeOne Medicines Ltd.	1.57%	347,687
16	INCY	Incyte Corporation	1.50%	1,188,809
17	UTHR	United Therapeutics Corporation	1.48%	274,142
18	NBIX	Neurocrine Biosciences, Inc.	1.41%	595,002
19	EXEL	Exelixis, Inc.	1.40%	1,645,087
20	BMRN	BioMarin Pharmaceutical Inc.	1.25%	1,178,304
21	MRNA	Moderna, Inc.	1.20%	2,134,567
22	TECH	Bio-Techne Corporation	0.94%	966,001
23	GMAB	Genmab A/S	0.94%	2,528,279
24	BPMC	Blueprint Medicines Corporation	0.92%	387,737
25	CRL	Charles River Laboratories International, Inc.	0.87%	302,651
26	MEDP	Medpace Holdings, Inc.	0.86%	145,331
27	BBIO	BridgeBio Pharma, Inc.	0.81%	1,001,822
28	RGEN	Repligen Corporation	0.78%	331,040
29	IONS	Ionis Pharmaceuticals, Inc.	0.77%	967,747
30	ASND	Ascendis Pharma A/S	0.76%	238,571
31	HALO	Halozyme Therapeutics, Inc.	0.75%	759,508
32	RVMD	Revolution Medicines, Inc.	0.70%	1,009,214
33	MDGL	Madrigal Pharmaceuticals, Inc.	0.69%	125,166
34	TEM	Tempus AI, Inc.	0.64%	570,545
35	ALKS	Alkermes plc	0.53%	1,005,093
36	ROIV	Roivant Sciences Ltd.	0.53%	2,603,260
37	VRNA	Verona Pharma plc	0.51%	302,432
38	BRKR	Bruker Corporation	0.50%	642,229
39	CRSP	CRISPR Therapeutics AG	0.50%	516,038
40	AXSM	Axsome Therapeutics, Inc.	0.49%	252,103
41	ADMA	ADMA Biologics, Inc.	0.48%	1,435,953
42	PCVX	Vaxcyte, Inc.	0.48%	779,496
43	LEGN	Legend Biotech Corporation	0.47%	713,665
44	CYTK	Cytokinetics, Incorporated	0.46%	727,583
45	RYTM	Rhythm Pharmaceuticals, Inc.	0.44%	362,882
46	PTCT	PTC Therapeutics, Inc.	0.43%	480,787
47	AKRO	Akero Therapeutics, Inc.	0.43%	446,878
48	NUVL	Nuvalent, Inc.	0.41%	277,257
49	KRYS	Krystal Biotech, Inc.	0.41%	154,646
50	RARE	Ultragenyx Pharmaceutical Inc.	0.40%	550,780

As of Jul 3, 2025

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