# Benchmark Mortgage Trust Benchmark 2021-B31 Mortgage Trust

Benchmark Mortgage Trust Benchmark 2021-B31 Mortgage Trust is a security (CUSIP 08163MAY3) tracked across SEC portfolio filings. 3 registered fund positions totaling $1.8M via N-PORT as of 2026-04-30.

## Summary

- Issuer: Benchmark Mortgage Trust
- Class: Benchmark 2021-B31 Mortgage Trust
- CUSIP: 08163MAY3
- Asset category: ABS-MBS
- 13F holders: 0
- N-PORT fund positions: 3
- N-PORT value: $1.8M
- N-PORT report: 2026-04-30

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [RiverNorth/DoubleLine Strategic Income Fund](https://search.stillhousedata.com/fund/S000030798) | RIVERNORTH FUNDS | $859K | 8.59% |
| Principal Real Estate Income Fund | PRINCIPAL REAL ESTATE INCOME FUND | $656K | 87.20% |
| RiverNorth/DoubleLine Strategic Opportunity Fund Inc. | RIVERNORTH/DOUBLELINE STRATEGIC OPPORTUNITY FUND INC. | $311K | 14.64% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/08163MAY3.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.