# CSFB Mortgage-Backed Pass-Through Certificates CSFB Mortgage-Backed Pass-Through Certificates, Series 2005-4, Class 3A23

CSFB Mortgage-Backed Pass-Through Certificates CSFB Mortgage-Backed Pass-Through Certificates, Series 2005-4, Class 3A23 is a security (CUSIP 225458QV3) tracked across SEC portfolio filings. 1 registered fund positions totaling $734K via N-PORT as of 2026-05-31.

## Summary

- Issuer: CSFB Mortgage-Backed Pass-Through Certificates
- Class: CSFB Mortgage-Backed Pass-Through Certificates, Series 2005-4, Class 3A23
- CUSIP: 225458QV3
- Asset category: ABS-MBS
- 13F holders: 0
- N-PORT fund positions: 1
- N-PORT value: $734K
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [JPMorgan Core Bond Trust](https://search.stillhousedata.com/fund/S000007337) | JPMorgan Institutional Trust | $734K | 1.58% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/225458QV3.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

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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.