iShares Biotechnology ETF (IBB)

IBB Holdings List

As of May 5, 2025

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No.	Symbol	Name	% Weight	Shares
1	VRTX	Vertex Pharmaceuticals Incorporated	9.18%	999,659
2	AMGN	Amgen Inc.	8.00%	1,556,954
3	GILD	Gilead Sciences, Inc.	7.92%	4,195,907
4	REGN	Regeneron Pharmaceuticals, Inc.	7.29%	657,713
5	ALNY	Alnylam Pharmaceuticals, Inc.	3.88%	772,455
6	ARGX	argenx SE	3.17%	262,919
7	IQV	IQVIA Holdings Inc.	3.04%	1,087,910
8	MTD	Mettler-Toledo International Inc.	2.57%	128,475
9	WAT	Waters Corporation	2.36%	369,823
10	NTRA	Natera, Inc.	2.30%	797,114
11	BIIB	Biogen Inc.	2.03%	908,595
12	BNTX	BioNTech SE	1.89%	1,018,240
13	ONC	BeiGene, Ltd.	1.60%	342,917
14	UTHR	United Therapeutics Corporation	1.51%	274,935
15	INSM	Insmed Incorporated	1.47%	1,102,986
16	ILMN	Illumina, Inc.	1.41%	983,512
17	INCY	Incyte Corporation	1.36%	1,189,915
18	BMRN	BioMarin Pharmaceutical Inc.	1.34%	1,175,154
19	EXEL	Exelixis, Inc.	1.24%	1,699,786
20	NBIX	Neurocrine Biosciences, Inc.	1.22%	604,207
21	GMAB	Genmab A/S	1.14%	2,879,957
22	MRNA	Moderna, Inc.	1.09%	2,132,393
23	TECH	Bio-Techne Corporation	0.89%	975,403
24	MEDP	Medpace Holdings, Inc.	0.86%	155,935
25	RGEN	Repligen Corporation	0.85%	329,904
26	HALO	Halozyme Therapeutics, Inc.	0.85%	759,907
27	ASND	Ascendis Pharma A/S	0.82%	262,178
28	RVMD	Revolution Medicines, Inc.	0.74%	1,008,161
29	BPMC	Blueprint Medicines Corporation	0.73%	391,464
30	CRL	Charles River Laboratories International, Inc.	0.69%	315,594
31	SRPT	Sarepta Therapeutics, Inc.	0.66%	560,939
32	BBIO	BridgeBio Pharma, Inc.	0.65%	931,836
33	MDGL	Madrigal Pharmaceuticals, Inc.	0.65%	116,148
34	ADMA	ADMA Biologics, Inc.	0.62%	1,421,205
35	IONS	Ionis Pharmaceuticals, Inc.	0.60%	965,380
36	ROIV	Roivant Sciences Ltd.	0.59%	2,759,845
37	ALKS	Alkermes plc	0.57%	989,261
38	AXSM	Axsome Therapeutics, Inc.	0.53%	249,983
39	PCVX	Vaxcyte, Inc.	0.49%	780,674
40	LEGN	Legend Biotech Corporation	0.49%	791,601
41	CYTK	Cytokinetics, Incorporated	0.48%	719,103
42	TEM	Tempus AI, Inc.	0.48%	486,187
43	BRKR	Bruker Corporation	0.48%	643,133
44	KRYS	Krystal Biotech, Inc.	0.46%	153,381
45	VRNA	Verona Pharma plc	0.42%	317,092
46	RYTM	Rhythm Pharmaceuticals, Inc.	0.41%	350,442
47	RNA	Avidity Biosciences, Inc.	0.41%	692,342
48	RARE	Ultragenyx Pharmaceutical Inc.	0.38%	539,056
49	NUVL	Nuvalent, Inc.	0.38%	276,399
50	SWTX	SpringWorks Therapeutics, Inc.	0.37%	437,531

As of May 5, 2025

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