# MPLX LP

MPLX LP is a security (CUSIP 55336VAL4) tracked across SEC portfolio filings. 10 registered fund positions totaling $7.6M via N-PORT as of 2026-05-31.

## Summary

- Issuer: MPLX LP
- CUSIP: 55336VAL4
- Asset category: DBT
- 13F holders: 0
- N-PORT fund positions: 10
- N-PORT value: $7.6M
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| BlackRock Credit Allocation Income Trust | BlackRock Credit Allocation Income Trust | $3.1M | 30.18% |
| [Federated Hermes Corporate Bond Fund](https://search.stillhousedata.com/fund/S000009106) | Federated Hermes Investment Series Funds, Inc. | $1.4M | 14.13% |
| [Multi-Manager Total Return Bond Strategies Fund](https://search.stillhousedata.com/fund/S000036205) | COLUMBIA FUNDS SERIES TRUST I | $1.4M | 1.11% |
| [VANGUARD LONG-TERM BOND INDEX FUND](https://search.stillhousedata.com/fund/S000002562) | VANGUARD BOND INDEX FUNDS | $635K | 0.73% |
| [Mercer Core Fixed Income Fund](https://search.stillhousedata.com/fund/S000010041) | Mercer Funds | $465K | 3.03% |
| [BlackRock Total Return Fund](https://search.stillhousedata.com/fund/S000004071) | BlackRock Bond Fund, Inc. | $428K | 0.24% |
| [Schroder Core Bond Fund](https://search.stillhousedata.com/fund/S000060189) | SCHRODER SERIES TRUST | $194K | 23.35% |
| [Advantage CoreAlpha Bond Master Portfolio](https://search.stillhousedata.com/fund/S000062381) | Master Investment Portfolio II | $42K | 0.62% |
| [VANGUARD CORE-PLUS BOND INDEX ETF](https://search.stillhousedata.com/fund/S000097262) | VANGUARD QUANTITATIVE FUNDS | $4K | 0.38% |
| [PGIM Core Bond Fund](https://search.stillhousedata.com/fund/S000004691) | Target Portfolio Trust | $4K | 0.02% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/55336VAL4.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.