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BlackRock Health Sciences Opportunities Portfolio

Filed by BlackRock Funds. What this fund reported holding in its latest quarterly NPORT-P. Positions are ordered by share of the fund rather than by size, because that is what separates a conviction from a rounding error.

Positions
59
matched to a ticker
Fund size
$6.5B
the filing's own figure
Matched value
$5.6B
of the positions below
As of
2026-08-31
S000001877

What it holds

Largest share of the fund first.

Company% of fundValue
LLYEli Lilly and Co11.92%$759.6M
JNJJohnson & Johnson8.03%$511.7M
MRKMerck & Co Inc5.56%$354.7M
ABBVAbbVie Inc5.07%$323.4M
TMOThermo Fisher Scientific Inc4.41%$281.1M
UNHUnitedHealth Group Inc4.33%$276.1M
GILDGilead Sciences, Inc4.09%$261M
AMGNAmgen Inc3.98%$253.7M
VRTXVertex Pharmaceuticals Inc3.33%$212.5M
ABTAbbott Laboratories2.74%$174.7M
PFEPfizer Inc2.40%$152.7M
DHRDanaher Corp2.29%$145.7M
EWEdwards Lifesciences Corp2.27%$144.7M
ELVElevance Health Inc1.86%$118.7M
SYKStryker Corp1.80%$114.9M
BMYBristol-Myers Squibb Co1.77%$112.9M
ARGXargenx SE1.54%$98.1M
BIIBBiogen Inc1.24%$78.9M
WATWaters Corp1.13%$72.3M
IQVIQVIA Holdings Inc1.08%$68.6M
MRNAModerna Inc0.98%$62.4M
ILMNIllumina Inc0.95%$60.8M
DXCMDexcom Inc0.95%$60.4M
BSXBoston Scientific Corp0.94%$59.9M
HCAHCA Healthcare Inc0.90%$57.1M
INCYIncyte Corp0.85%$54.2M
CYTKCytokinetics Inc0.72%$46.1M
PENPenumbra Inc0.68%$43M
AAgilent Technologies Inc0.65%$41.7M
THCTenet Healthcare Corp0.64%$41M
CORCencora Inc0.61%$39M
INSMInsmed Inc0.57%$36.5M
COGTCogent Biosciences Inc0.57%$36.1M
NVSNovartis AG0.50%$31.6M
HUMHumana Inc0.45%$28.9M
UTHRUnited Therapeutics Corp0.45%$28.4M
HALOHalozyme Therapeutics Inc0.41%$26.2M
TEMTempus AI Inc0.41%$26.1M
CVSCVS Health Corp0.39%$24.6M
MCKMcKesson Corp0.38%$24.4M
BRKRBruker Corp0.36%$22.9M
BMRNBioMarin Pharmaceutical Inc0.33%$21M
MTDMettler-toledo International Inc0.33%$20.8M
DGXQuest Diagnostics Inc0.32%$20.5M
NBIXNeurocrine Biosciences Inc0.27%$17.4M
AXSMAxsome Therapeutics Inc0.27%$17.4M
CRLCharles River Laboratories International Inc0.25%$16.2M
MDGLMadrigal Pharmaceuticals Inc0.23%$14.9M
NTRANatera Inc0.23%$14.9M
EXELExelixis Inc0.20%$12.7M
WSTWest Pharmaceutical Services Inc0.17%$11.1M
IONSIonis Pharmaceuticals Inc0.16%$10.3M
PCVXVaxcyte Inc0.14%$9M
NTLAIntellia Therapeutics Inc0.13%$8.5M
ENTAEnanta Pharmaceuticals Inc0.10%$6.6M
RLAYRelay Therapeutics Inc0.10%$6.3M
KODKodiak Sciences Inc0.08%$4.8M
GPCRStructure Therapeutics Inc0.07%$4.2M
RAREUltragenyx Pharmaceutical Inc0.05%$3.3M

Source: NPORT-P filings, via EDGAR. Positions arrive by CUSIP, and only a CUSIP verified against a ticker is kept — so this is what we could match, not everything the fund holds, and the matched value is therefore below the fund's own size. A balance is shares where the filing says `NS` and a principal amount where it says `PA`, which is why it is not labelled shares in both cases.

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