Upgrade Master Pass-Thru Trust Upgrade Master Pass-Thru Trust, Series 2025-ST6, Class B

Upgrade Master Pass-Thru Trust Upgrade Master Pass-Thru Trust, Series 2025-ST6, Class B is a security (CUSIP 91533QAB3) tracked across SEC portfolio filings. 1 registered fund positions totaling $211K via N-PORT as of 2025-10-31.

Summary

Top fund holders (N-PORT)

FundRegistrantValue% of fund
BlackRock Securitized Income FundManaged Account Series II$211K4.65%

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