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Holdings (Monthly) Guide ↗

BlackRock Health Sciences Opportunities Portfolio

· BlackRock Funds
Monthly Holdings $6.0B AUM 175 positions Period May 2026 Filed Jul 27, 2026 EDGAR ↗ ← All Funds
All 44 New 25 Added 25 Reduced 20 Exited · May 2026 vs Feb 2026
# Name Ticker Since Shares Shares Δ Value Val Δ% % Port Cat
1 ELI LILLY & COMPANY LLY Feb 2026 656,650 -47,692 $725.6M -2.1% 12.29% EC
2 JOHNSON & JOHNSON JNJ Feb 2026 2,299,215 -389,116 $518.1M -22.4% 8.77% EC
3 UNITEDHEALTH GROUP INC UNH Feb 2026 947,412 +269,501 $360.3M +81.2% 6.10% EC
4 MERCK & COMPANY INC MRK Feb 2026 2,456,466 +584,660 $291.6M +25.8% 4.94% EC
5 GILEAD SCIENCES INC GILD Feb 2026 1,841,333 +104,911 $247.5M -4.3% 4.19% EC
6 ABBVIE INC ABBV Feb 2026 1,068,019 -89,681 $232.5M -13.5% 3.94% EC
7 AMGEN INC AMGN Feb 2026 590,203 +2,045 $198.8M -12.9% 3.37% EC
8 THERMO FISHER SCIENTIFIC INC TMO Feb 2026 362,337 +77,051 $178.5M +20.0% 3.02% EC
9 VERTEX PHARMACEUTICALS INC VRTX Feb 2026 361,907 +88,589 $162.0M +19.3% 2.74% EC
10 PFIZER INC PFE Feb 2026 5,899,018 +4,714,396 $154.4M +371.5% 2.61% EC
11 EDWARDS LIFESCIENCES CORP EW Feb 2026 1,710,975 $147.9M +0.0% 2.51% EC
12 DANAHER CORP DHR Feb 2026 645,138 -71,054 $117.8M -21.9% 2.00% EC
13 ABBOTT LABORATORIES ABT Feb 2026 1,361,894 $116.6M -26.4% 1.97% EC
14 INTUITIVE SURGICAL INC ISRG Feb 2026 271,432 -47,619 $115.3M -28.3% 1.95% EC
15 TEVA PHARMACEUTICAL INDUSTRIES LTD TEVA Feb 2026 3,121,339 -353,754 $110.2M -6.3% 1.87% EC
16 BOSTON SCIENTIFIC CORP BSX Feb 2026 1,945,032 +660,670 $94.0M -4.8% 1.59% EC
17 ELEVANCE HEALTH INC ELV Feb 2026 234,947 +146,342 $92.4M +225.8% 1.56% EC
18 ARGENX SE ARGX Feb 2026 88,995 -32,345 $74.4M -20.1% 1.26% EC
19 BIOGEN INC BIIB Feb 2026 364,188 $71.4M +2.2% 1.21% EC
20 ASTRAZENECA PLC AZN Feb 2026 384,355 +236,566 $71.4M +1.5% 1.21% EC
21 STRYKER CORP SYK Feb 2026 221,948 -111,123 $67.7M -47.5% 1.15% EC
22 BLACKROCK FUNDS III BISXX Feb 2026 59,490,958 +2,055,537 $59.5M +3.6% 1.01% STIV
23 REVOLUTION MEDICINES INC RVMD Feb 2026 361,340 +58,345 $56.9M +84.1% 0.96% EC
24 HUMANA INC HUM Feb 2026 178,205 +99,512 $54.4M +263.0% 0.92% EC
25 REGENERON PHARMACEUTICALS INC REGN Feb 2026 87,659 $53.9M -21.4% 0.91% EC
26 BRISTOL-MYERS SQUIBB COMPANY BMY Feb 2026 917,026 -180,058 $52.4M -23.4% 0.89% EC
27 COGENT BIOSCIENCES INC COGT Feb 2026 1,406,858 +586,439 $49.2M +54.3% 0.83% EC
28 DEXCOM INC DXCM Feb 2026 663,769 $48.9M +0.4% 0.83% EC
29 WATERS CORP WAT Feb 2026 124,449 $47.7M +20.1% 0.81% EC
30 CYTOKINETICS INC CYTK Feb 2026 575,188 +390,411 $44.2M +284.0% 0.75% EC
31 PENUMBRA INC PEN Feb 2026 133,216 $42.4M -7.6% 0.72% EC
32 HCA HEALTHCARE INC HCA Feb 2026 111,627 -14,078 $42.3M -36.5% 0.72% EC
33 INSMED INC INSM Feb 2026 392,149 +90,796 $41.9M -6.8% 0.71% EC
34 CVS HEALTH CORP CVS Feb 2026 459,705 +100,423 $41.8M +45.7% 0.71% EC
35 RHYTHM PHARMACEUTICALS INC RYTM Feb 2026 471,276 -67,517 $41.6M -16.7% 0.70% EC
36 GALDERMA GROUP AG GALD Feb 2026 188,090 NEW $39.8M 0.67% EC
37 INCYTE CORP INCY Feb 2026 396,174 $38.3M -4.5% 0.65% EC
38 NOVARTIS AG NVS Feb 2026 251,660 $37.8M -10.9% 0.64% EC
39 PROTAGONIST THERAPEUTICS INC PTGX Feb 2026 370,408 $36.9M +8.1% 0.62% EC
40 AGILENT TECHNOLOGIES INC A Feb 2026 271,239 $36.8M +11.7% 0.62% EC
41 IDEXX LABORATORIES INC IDXX Feb 2026 65,102 -9,519 $36.7M -25.1% 0.62% EC
42 NUVALENT INC NUVL Feb 2026 315,841 $34.9M +8.3% 0.59% EC
43 UNITED THERAPEUTICS CORP UTHR Feb 2026 55,689 $31.0M +10.5% 0.53% EC
44 ALNYLAM PHARMACEUTICALS INC ALNY Feb 2026 94,913 -112,236 $28.7M -58.4% 0.49% EC
45 BRUKER CORP BRKR Feb 2026 471,949 $27.8M +46.8% 0.47% EC
46 MODERNA INC MRNA Feb 2026 560,799 $26.5M -11.9% 0.45% EC
47 IQVIA HOLDINGS INC IQV Feb 2026 141,190 $25.7M +1.9% 0.44% EC
48 ILLUMINA INC ILMN Feb 2026 145,933 $23.8M +21.2% 0.40% EC
49 MEDLINE INC MDLN Feb 2026 605,149 -237,424 $22.1M -44.7% 0.37% EC
50 APOGEE THERAPEUTICS INC APGE Feb 2026 263,702 +60,752 $21.7M +52.5% 0.37% EC
51 BLACKROCK LIQUIDITY FUNDS TSTXX Feb 2026 21,272,201 -12,923,669 $21.3M -37.8% 0.36% STIV
52 MCKESSON CORP MCK Feb 2026 27,586 -52,076 $20.5M -74.0% 0.35% EC
53 BIOMARIN PHARMACEUTICAL INC BMRN Feb 2026 322,635 $18.5M -7.2% 0.31% EC
54 NEUROCRINE BIOSCIENCES INC NBIX Feb 2026 113,005 +34,284 $17.9M +71.8% 0.30% EC
55 DIANTHUS THERAPEUTICS INC DNTH Feb 2026 186,482 +78,449 $17.3M +190.9% 0.29% EC
56 ROIVANT SCIENCES LTD ROIV Feb 2026 563,855 NEW $16.9M 0.29% EC
57 QUEST DIAGNOSTICS INC DGX Feb 2026 85,193 $16.6M -8.0% 0.28% EC
58 LB PHARMACEUTICALS INC LBRX Feb 2026 567,627 $15.9M +16.5% 0.27% EC
59 UCB SA UCB Feb 2026 53,577 NEW $15.7M 0.27% EC
60 ORUKA THERAPEUTICS INC ORKA Feb 2026 264,813 +79,798 $15.5M +143.5% 0.26% EC
61 STOKE THERAPEUTICS INC STOK Feb 2026 473,152 $14.6M -15.1% 0.25% EC
62 ARCUS BIOSCIENCES INC RCUS Feb 2026 572,430 +116,888 $14.5M +56.3% 0.25% EC
63 MADRIGAL PHARMACEUTICALS INC MDGL May 2026 27,588 NEW $13.7M 0.23% EC
64 IONIS PHARMACEUTICALS INC IONS Feb 2026 170,008 $13.0M -5.7% 0.22% EC
65 CENCORA INC COR Feb 2026 46,310 -219,550 $12.5M -87.4% 0.21% EC
66 EXELIXIS INC EXEL Feb 2026 231,652 $11.7M +14.6% 0.20% EC
67 ELANCO ANIMAL HEALTH INC ELAN Feb 2026 483,249 $11.5M -9.7% 0.20% EC
68 DAIICHI SANKYO COMPANY LTD 4568 Feb 2026 673,800 NEW $11.3M 0.19% EC
69 SCHOLAR ROCK HOLDING CORP SRRK Feb 2026 226,209 $11.2M +11.4% 0.19% EC
70 ADARX PHARMACEUTICALS INC 000000000 Feb 2026 769,230 NEW $10.9M 0.18% EC
71 KAILERA THERAPEUTICS INC KLRA May 2026 464,174 NEW $10.6M 0.18% EC
72 WEST PHARMACEUTICAL SERVICES INC WST Feb 2026 32,517 -27,912 $10.5M -31.7% 0.18% EC
73 MBX BIOSCIENCES INC MBX Feb 2026 333,350 $10.5M -3.3% 0.18% EC
74 NATERA INC NTRA Feb 2026 46,190 -84,089 $10.3M -61.9% 0.17% EC
75 CHARLES RIVER LABORATORIES INTERNATIONAL INC CRL Feb 2026 56,177 $10.2M +1.2% 0.17% EC
76 BIO-TECHNE CORP TECH Feb 2026 193,925 $10.0M -12.4% 0.17% EC
77 KAILERA THERAPEUTICS INC 000000000 Feb 2026 428,000 NEW $9.8M 0.17% EC
78 NOVOCURE LTD NVCR Feb 2026 574,295 NEW $9.8M 0.17% EC
79 INTELLIA THERAPEUTICS INC NTLA Feb 2026 664,846 +146,454 $9.4M +31.0% 0.16% EC
80 ERASCA INC ERAS Feb 2026 709,864 $9.1M -6.0% 0.15% EC
81 VIRIDIAN THERAPEUTICS INC VRDN Feb 2026 516,095 $9.1M -40.0% 0.15% EC
82 GLAUKOS CORP GKOS Feb 2026 87,150 $9.0M -14.2% 0.15% EC
83 AXSOME THERAPEUTICS INC AXSM May 2026 38,178 NEW $9.0M 0.15% EC
84 BRIGHT MINDS BIOSCIENCES INC DRUG Feb 2026 95,655 $8.4M +5.1% 0.14% EC
85 AGIOS PHARMACEUTICALS INC AGIO Feb 2026 271,615 -73,261 $8.0M -23.4% 0.14% EC
86 EIKON THERAPEUTICS INC EIKN Feb 2026 722,389 $7.8M -21.3% 0.13% EC
87 VAXCYTE INC PCVX Feb 2026 147,352 +59,812 $7.6M +40.1% 0.13% EC
88 LARONDE INC 000000000 Feb 2026 386,520 NEW $7.5M 0.13% EC
89 METTLER-TOLEDO INTERNATIONAL INC MTD Feb 2026 6,058 +1,464 $7.2M +13.9% 0.12% EC
90 KARTOS THERAPEUTICS INC 000000000 Feb 2026 1,233,856 NEW $7.0M 0.12% EC
91 Angitia Biopharmaceuticals Limited 000000000 Feb 2026 658,956 NEW $6.5M 0.11% EC
92 ENANTA PHARMACEUTICALS INC ENTA Feb 2026 492,001 $6.5M -8.0% 0.11% EC
93 ALUMIS INC ALMS Feb 2026 293,662 $6.3M -27.2% 0.11% EC
94 IMMUNOME INC IMNM Feb 2026 288,792 $6.3M -0.1% 0.11% EC
95 MONTE ROSA THERAPEUTICS INC GLUE Feb 2026 318,162 $6.3M +11.0% 0.11% EC
96 GENESIS THERAPEUTICS INC 000000000 Feb 2026 823,870 NEW $6.1M 0.10% EC
97 BRIDGEBIO ONCOLOGY THERAPEUTICS INC BBOT Feb 2026 673,766 $6.0M -10.6% 0.10% EC
98 PALVELLA THERAPEUTICS INC PVLA May 2026 50,716 NEW $6.0M 0.10% EC
99 RADNET INC RDNT Feb 2026 108,100 $6.0M -20.5% 0.10% EC
100 BRIDGEBIO PHARMA INC BBIO Feb 2026 86,968 -117,906 $5.8M -57.7% 0.10% EC
101 KALVISTA PHARMACEUTICALS INC KALV Feb 2026 212,587 $5.7M +65.0% 0.10% EC
102 BEAM THERAPEUTICS INC BEAM Feb 2026 168,010 $5.5M +15.7% 0.09% EC
103 AKTIS ONCOLOGY INC AKTS Feb 2026 266,503 $5.5M +3.0% 0.09% EC
104 IMMUNOCORE HOLDINGS PLC IMCR Feb 2026 188,691 $5.5M -10.6% 0.09% EC
105 DYNE THERAPEUTICS INC DYN Feb 2026 278,934 $5.4M +23.8% 0.09% EC
106 DENALI THERAPEUTICS INC DNLI Feb 2026 251,859 -77,320 $5.3M -24.0% 0.09% EC
107 MAZE THERAPEUTICS INC MAZE Feb 2026 184,453 $4.9M -42.0% 0.08% EC
108 SUMMIT THERAPEUTICS INC SMMT Feb 2026 276,987 -647,161 $4.9M -68.3% 0.08% EC
109 RELAY THERAPEUTICS INC RLAY May 2026 342,957 NEW $4.8M 0.08% EC
110 AVALO THERAPEUTICS INC AVTX May 2026 299,585 NEW $4.8M 0.08% EC
111 KODIAK SCIENCES INC KOD Feb 2026 128,647 -60,122 $4.7M -6.6% 0.08% EC
112 KYMERA THERAPEUTICS INC KYMR Feb 2026 54,173 $4.4M -10.9% 0.07% EC
113 ALCON AG ALC Feb 2026 65,553 NEW $4.3M 0.07% EC
114 SAGIMET BIOSCIENCES INC SGMT May 2026 585,181 NEW $4.3M 0.07% EC
115 BIONTECH SE BNTX Feb 2026 41,921 $4.0M -13.0% 0.07% EC
116 INSITRO INC 000000000 Feb 2026 592,636 NEW $4.0M 0.07% EC
117 BIOHAVEN LTD BHVN Feb 2026 348,832 NEW $3.8M 0.07% EC
118 ZEALAND PHARMA A/S ZEAL Feb 2026 74,091 NEW $3.8M 0.06% EC
119 PTC THERAPEUTICS INC PTCT Feb 2026 48,954 -34,016 $3.6M -36.1% 0.06% EC
120 BICARA THERAPEUTICS INC BCAX May 2026 160,104 NEW $3.5M 0.06% EC
121 QUANTA DIALYSIS TECHNOLOGIES LTD 000000000 Feb 2026 80,024,425 NEW $3.4M 0.06% EC
122 ULTRAGENYX PHARMACEUTICAL INC RARE May 2026 130,855 NEW $3.1M 0.05% EC
123 MOONLAKE IMMUNOTHERAPEUTICS MLTX May 2026 161,391 NEW $3.1M 0.05% EC
124 UPSTREAM BIO INC UPB Feb 2026 341,675 $2.9M +8.9% 0.05% EC
125 ALLOGENE THERAPEUTICS INC ALLO Feb 2026 1,208,862 $2.6M -21.9% 0.04% EC
126 EYEPOINT INC EYPT Feb 2026 186,478 $2.5M -22.7% 0.04% EC
127 OCULAR THERAPEUTIX INC OCUL Feb 2026 258,781 $2.3M +0.8% 0.04% EC
128 WAVE LIFE SCIENCES LTD WVE Feb 2026 345,882 NEW $2.3M 0.04% EC
129 DEFINIUM THERAPEUTICS INC DFTX May 2026 81,265 NEW $2.0M 0.03% EC
130 KARTOS THERAPEUTICS INC 000000000 Feb 2026 339,469 NEW $1.9M 0.03% EC
131 BRIDGEBIO ONCOLOGY THERAPEUTICS INC 000000000 Feb 2026 209,287 NEW $1.9M 0.03% EC
132 VOR BIOPHARMA INC VOR Feb 2026 115,078 $1.7M -3.0% 0.03% EC
133 REGENXBIO INC RGNX Feb 2026 214,663 $1.5M -22.5% 0.03% EC
134 MAPLIGHT THERAPEUTICS INC MPLT May 2026 50,257 NEW $1.5M 0.02% EC
135 CORVUS PHARMACEUTICALS INC CRVS Feb 2026 110,424 $1.4M -32.0% 0.02% EC
136 4D MOLECULAR THERAPEUTICS INC FDMT Feb 2026 126,274 $1.3M +2.6% 0.02% EC
137 SYNDAX PHARMACEUTICALS INC SNDX May 2026 58,560 NEW $1.1M 0.02% EC
138 ANNEXON INC ANNX May 2026 188,611 NEW $1.0M 0.02% EC
139 NYXOAH SA NYXH Feb 2026 337,359 NEW $1.0M 0.02% EC
140 GOLDFINCH BIO INC 000000000 Feb 2026 3,115,353 NEW $935K 0.02% EC
141 ORCHESTRA BIOMED HOLDINGS INC OBIO Feb 2026 206,130 $806K -10.7% 0.01% EC
142 EXO IMAGING INC 000000000 Feb 2026 890,877 NEW $659K 0.01% EP
143 KARTOS THERAPEUTICS INC 000000000 Feb 2026 614,446 NEW $636K 0.01% EC
144 CELLARITY INC 000000000 Feb 2026 858,333 NEW $498K 0.01% EC
145 AFFINIVAX INC 000000000 Feb 2026 122,824 NEW $450K 0.01% EC
146 ABIOMED INC 2223637D Feb 2026 243,643 $368K -34.9% 0.01%
147 BLUEPRINT MEDICINES CORP BPMC Feb 2026 204,909 $203K -1.0% 0.00% EC
148 MIRATI THERAPEUTICS INC MRTX Feb 2026 228,510 $181K +0.0% 0.00% EC
149 GOSSAMER BIO INC GOSS Feb 2026 365,199 $84K -45.7% 0.00% EC
150 EXO IMAGING INC 000000000 Feb 2026 19,083 NEW $7K 0.00% EC
151 ARCELLX INC ACLX Feb 2026 92,964 $7K -99.9% 0.00% EC
152 SWIFT HEALTH SYSTEMS INC 000000000 Feb 2026 1,700 NEW $4K 0.00% EC
153 HOLOGIC INC HOLX May 2026 138,368 NEW $1K 0.00% EC
154 FREQUENCY THERAPEUTICS CVR 000000000 Feb 2026 428,010 NEW $4 0.00% EC
155 GOLDFINCH EQUITY WARRANTS 000000000 Feb 2026 403,447 NEW $4 0.00% DE
Exact Sciences Corporation 30063P105 548,069 SOLD $56.7M
Guardant Health Inc 40131M109 336,665 SOLD $31.6M
The Cooper Companies, Inc. 216648501 293,135 SOLD $24.5M
Centene Corp. 15135B101 545,618 SOLD $24.5M
GE Healthcare Technologies Inc. 36266G107 226,856 SOLD $19.1M
Veeva Systems Inc 922475108 99,401 SOLD $18.1M
Repligen Corporation 759916109 136,584 SOLD $17.6M
Terns Pharmaceuticals Inc. 880881107 367,842 SOLD $15.5M
Viking Therapeutics Inc. 92686J106 425,324 SOLD $14.4M
Hologic Inc 436440101 138,368 SOLD $10.4M
Ventyx Biosciences Inc. 92332V107 590,649 SOLD $8.3M
Edgewise Therapeutics Inc. 28036F105 256,164 SOLD $7.8M
Avidity Biosciences Inc. 05370A108 99,483 SOLD $7.2M
Olema Pharmaceuticals Inc. 68062P106 253,931 SOLD $6.1M
Disc Medicine Inc 254604101 86,558 SOLD $5.8M
CG Oncology Inc. 156944100 59,514 SOLD $3.5M
Voyager Therapeutics Incorporation 92915B106 371,161 SOLD $1.5M
Autolus Therapeutics PLC 05280R100 728,967 SOLD $1.2M
TScan Therapeutics Inc 89854M101 556,653 SOLD $0.6M
Atrium Therapeutics Inc. 04965N104 9,948 SOLD $0.1M