# BANK BANK, Series 2021-BN31, Class XA

BANK BANK, Series 2021-BN31, Class XA is a security (CUSIP 06541ABM1) tracked across SEC portfolio filings. 2 registered fund positions totaling $2.5M via N-PORT as of 2026-05-31.

## Summary

- Issuer: BANK
- Class: BANK, Series 2021-BN31, Class XA
- CUSIP: 06541ABM1
- Asset category: ABS-MBS
- 13F holders: 0
- N-PORT fund positions: 2
- N-PORT value: $2.5M
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [MFS Limited Maturity Fund](https://search.stillhousedata.com/fund/S000002495) | MFS Series Trust IX | $2.4M | 7.18% |
| MFS GOVERNMENT MARKETS INCOME TRUST | MFS GOVERNMENT MARKETS INCOME TRUST | $67K | 6.75% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/06541ABM1.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.