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Small Cap Growth Fund

Filed by American Century Mutual Funds, Inc.. 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
61
matched to a ticker
Fund size
$5.6B
the filing's own figure
Matched value
$2.6B
of the positions below
As of
2026-07-31
S000006193

What it holds

Largest share of the fund first.

Company% of fundValue
HXLHexcel Corp1.61%$89.8M
CECOCECO Environmental Corp1.53%$85.3M
AGXArgan Inc1.41%$78.3M
ESEESCO Technologies Inc1.40%$78.2M
LTHLife Time Group Holdings, Inc1.24%$68.8M
NOVTNovanta Inc1.18%$65.4M
MIAXMiami International Holdings Inc1.14%$63.7M
HRIHerc Holdings Inc1.14%$63.5M
CGNXCognex Corp1.07%$59.5M
LFUSLittelfuse Inc1.06%$59.2M
RRXRegal Rexnord Corp1.06%$58.8M
ENVAEnova International Inc1.05%$58.3M
EHCEncompass Health Corp1.04%$58.1M
HQYHealthequity Inc1.04%$57.9M
TACTransAlta Corp1.04%$57.6M
PRAXPraxis Precision Medicines Inc0.99%$55M
RALRalliant Corp0.97%$53.9M
MURMurphy Oil Corporation Common Stock0.93%$52M
COMPCompass Inc0.92%$51.1M
QTWOQ2 Holdings Inc0.91%$50.5M
ONTOOnto Innovation Inc0.89%$49.5M
PIImpinj Inc0.88%$48.9M
PRIMPrimoris Services Corp0.86%$47.6M
AITApplied Industrial Technologies Inc0.81%$45.1M
TREXTrex Company Inc0.78%$43.7M
COGTCogent Biosciences Inc0.76%$42.5M
DIODDiodes Inc0.76%$42.3M
ESIElement Solutions Inc0.73%$40.4M
WWayfair Inc0.71%$39.6M
LSCCLattice Semiconductor Corp0.71%$39.5M
ARQTArcutis Biotherapeutics Inc0.71%$39.4M
FIVEFive Below Inc0.67%$37.4M
NYTNew York Times Co0.66%$36.8M
BOXBox Inc0.65%$36.2M
BOOTBoot Barn Holdings Inc0.63%$34.8M
BBIOBridgeBio Pharma Inc0.62%$34.7M
ROADConstruction Partners Inc0.61%$34M
USPHUS Physical Therapy Inc0.60%$33.6M
POWIPower Integrations Inc0.58%$32.1M
MDGLMadrigal Pharmaceuticals Inc0.56%$31.1M
SFMSprouts Farmers Market Inc0.56%$31.1M
VCVisteon Corp0.56%$31M
PCVXVaxcyte Inc0.55%$30.9M
CYTKCytokinetics Inc0.54%$30.2M
NVSTEnvista Holdings Corp0.53%$29.6M
TWSTTwist Bioscience Corp0.53%$29.2M
EYENational Vision Holdings Inc0.52%$28.8M
SSBSouthState Bank Corp0.51%$28.3M
BCBrunswick Corp0.50%$28M
SITESiteOne Landscape Supply Inc0.49%$27.3M
OLLIOllie's Bargain Outlet Holdings Inc0.47%$26.4M
GWREGuidewire Software Inc0.47%$26M
FSVFirstService Corp0.46%$25.5M
GHGuardant Health Inc0.46%$25.3M
DSGXDescartes Systems Group Inc0.44%$24.6M
OMCLOmnicell Inc0.42%$23.2M
ARWRArrowhead Pharmaceuticals Inc0.38%$21M
WDFCWD-40 Co0.37%$20.5M
FRPTFreshpet Inc0.33%$18.5M
IONSIonis Pharmaceuticals Inc0.31%$17.3M
UUUUEnergy Fuels Inc0.31%$17M

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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