# MPLX LP MPLX LP SR UNSECURED 09/32 4.95

MPLX LP MPLX LP SR UNSECURED 09/32 4.95 is a security (CUSIP 55336VBU3) tracked across SEC portfolio filings. 11 registered fund positions totaling $39.2M via N-PORT as of 2026-05-31.

## Summary

- Issuer: MPLX LP
- Class: MPLX LP SR UNSECURED 09/32 4.95
- CUSIP: 55336VBU3
- Asset category: DBT
- 13F holders: 0
- N-PORT fund positions: 11
- N-PORT value: $39.2M
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [Bond Fund](https://search.stillhousedata.com/fund/S000000646) | John Hancock Sovereign Bond Fund | $13.3M | 5.01% |
| [VANGUARD INTERMEDIATE-TERM BOND INDEX FUND](https://search.stillhousedata.com/fund/S000002561) | VANGUARD BOND INDEX FUNDS | $8.8M | 1.71% |
| [Federated Hermes Total Return Bond Fund](https://search.stillhousedata.com/fund/S000010897) | Federated Hermes Total Return Series, Inc. | $7.4M | 4.91% |
| DNP Select Income Fund Inc | DNP Select Income Fund Inc | $7.0M | 17.85% |
| [MML VIP Fidelity Institutional AM Core Plus Bond Fund](https://search.stillhousedata.com/fund/S000029642) | MML SERIES INVESTMENT FUND | $796K | 22.02% |
| [John Hancock Managed Account Shares Investment-Grade Corporate Bond Portfolio](https://search.stillhousedata.com/fund/S000065848) | John Hancock Strategic Series | $661K | 12.96% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $570K | 0.10% |
| [Thornburg Multi Sector Bond ETF](https://search.stillhousedata.com/fund/S000089220) | Thornburg ETF Trust | $307K | 16.64% |
| John Hancock Income Securities Trust | John Hancock Income Securities Trust | $149K | 10.48% |
| [Federated Hermes Managed Volatility Fund II](https://search.stillhousedata.com/fund/S000009746) | Federated Hermes Insurance Series | $100K | 5.84% |
| [PGIM Global Total Return (USD Hedged) Fund](https://search.stillhousedata.com/fund/S000059804) | Prudential Global Total Return Fund, Inc. | $70K | 22.40% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/55336VBU3.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.