IBRN
iShares Neuroscience and Healthcare ETF
iShares Trust
ETFIndex fund

Portfolio concentration

As of January 31, 2026 · N-PORT
Holdings
68
Top-10 weight
44.58%
Effective holdings ?
27
Crowding ?
299.5

Holdings

As of January 31, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 BlackRock Cash Funds: Institutional, SL Agency Shares BISXX 650,078 $650.40K 13.30%
2 PRAXIS PRECISION MEDICINES INC 782 $245.55K 5.02%
3 AXSOME THERAPEUTICS INC 1,299 $239.34K 4.90%
4 ALKERMES PLC 6,568 $222.59K 4.55%
5 BIOGEN INC 1,069 $192.30K 3.93%
6 SCHOLAR ROCK HOLDING CORP 4,306 $190.93K 3.91%
7 PTC THERAPEUTICS INC 2,510 $189.58K 3.88%
8 DENALI THERAPEUTICS INC 8,338 $181.27K 3.71%
9 ARGENX SE SPONSORED ADR 215 $180.71K 3.70%
10 ACADIA PHARMACEUTICALS INC 7,065 $177.54K 3.63%
11 XENON PHARMACEUTICALS INC 4,307 $176.63K 3.61%
12 CATALYST PHARMACEUTICALS INC 7,110 $172.77K 3.53%
13 NEUROCRINE BIOSCIENCES INC 1,247 $169.67K 3.47%
14 SUPERNUS PHARMACEUTICALS INC 3,493 $168.22K 3.44%
15 CENTESSA PHARMACEUTICALS LTD ADR 6,159 $151.33K 3.10%
16 SK BIOPHARMS. CO LTD A326030 1,801 $146.95K 3.01%
17 EDGEWISE THERAPEUTICS INC 4,897 $137.85K 2.82%
18 AVADEL PHARMACEU 5,990 $129.08K 2.64%
19 SAREPTA THERAPEUTICS INC 6,336 $128.87K 2.64%
20 DYNE THERAPEUTICS INC 6,733 $120.45K 2.46%
21 DIANTHUS THERAPEUTICS INC 2,253 $120.29K 2.46%
22 H LUNDBECK A/S 17,155 $115.01K 2.35%
23 AXOGEN INC 2,885 $100.54K 2.06%
24 BIOARCTIC AB 2,484 $89.20K 1.82%
25 BIOHAVEN LTD 6,937 $82.06K 1.68%
26 NEUREN PHARMACEU 6,950 $80.47K 1.65%
27 TAYSHA GENE THERAPIES INC 14,326 $64.61K 1.32%
28 TOBII DYNAVOX AB DYVOX SS 6,211 $60.76K 1.24%
29 CAPRICOR THERAPEUTICS INC 2,579 $56.45K 1.15%
30 IDORSIA LTD 10,661 $50.59K 1.03%
31 ANNEXON INC 7,887 $49.21K 1.01%
32 RAPPORT THERAPEUTICS INC 1,804 $48.00K 0.98%
33 INTEGRA LIFESCIENCES HLDS CORP 4,227 $47.09K 0.96%
34 SANBIO CO LTD 3,700 $44.25K 0.90%
35 ZYLOX-TONBRIDGE MEDICAL TECHNOLOGY CO LTD 2190 12,500 $39.51K 0.81%
36 Bright Minds Biosciences Inc COM NEW DRUG US 500 $38.88K 0.80%
37 MEDINCELL SA MEDCL 1,318 $35.24K 0.72%
38 FULCRUM THERAPEUTICS INC 3,080 $33.05K 0.68%
39 REGENXBIO INC 2,960 $33.03K 0.68%
40 MICROPORT NEUROTECH LTD 2172 20,000 $30.11K 0.62%
41 CERIBELL INC 1,418 $29.22K 0.60%
42 ANAVEX LIFE SCIENCES CORP 5,784 $27.18K 0.56%
43 VANDA PHARMACEUTICALS INC 3,517 $26.52K 0.54%
44 BENITEC BIOPHARMA INC 2,096 $25.53K 0.52%
45 NEUROPACE INC 1,634 $24.72K 0.51%
46 PEIJIA MEDICAL LTD 29,000 $24.55K 0.50%
47 PROTHENA CORP PLC COMMON STOCK USD.01 PRTA US 2,784 $24.53K 0.50%
48 SOLID BIOSCIENCES INC 3,717 $24.01K 0.49%
49 ONCOLYS BIOPHARMA INC 1,800 $20.28K 0.41%
50 CLEARPOINT NEURO INC 1,550 $20.04K 0.41%
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