# Upgrade Master Pass-thru Trust Upgrade Master Pass-Thru Trust, Series 2025-P1, Class CERT

Upgrade Master Pass-thru Trust Upgrade Master Pass-Thru Trust, Series 2025-P1, Class CERT is a security (CUSIP 91533LAB4) tracked across SEC portfolio filings. 1 registered fund positions totaling $1.0M via N-PORT as of 2026-04-30.

## Summary

- Issuer: Upgrade Master Pass-thru Trust
- Class: Upgrade Master Pass-Thru Trust, Series 2025-P1, Class CERT
- CUSIP: 91533LAB4
- Asset category: ABS-O
- 13F holders: 0
- N-PORT fund positions: 1
- N-PORT value: $1.0M
- N-PORT report: 2026-04-30

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| 1WS Credit Income Fund | 1WS CREDIT INCOME FUND | $1.0M | 11.97% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/91533LAB4.md)
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Source: public SEC filing data via Adviser Search (https://search.stillhousedata.com).
Agents: this data is also queryable via MCP tools and read-only SQL — see https://search.stillhousedata.com/llms.txt.