# MPLX LP MPLX LP SR UNSEC 4.125% 03-01-27

MPLX LP MPLX LP SR UNSEC 4.125% 03-01-27 is a security (CUSIP 55336VAK6) tracked across SEC portfolio filings. 8 registered fund positions totaling $8.8M via N-PORT as of 2026-05-31.

## Summary

- Issuer: MPLX LP
- Class: MPLX LP SR UNSEC 4.125% 03-01-27
- CUSIP: 55336VAK6
- Asset category: DBT
- 13F holders: 0
- N-PORT fund positions: 8
- N-PORT value: $8.8M
- N-PORT report: 2026-05-31

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [American Balanced Fund](https://search.stillhousedata.com/fund/S000008801) | American Balanced Fund | $4.2M | 0.16% |
| [Pioneer Short Term Income Fund](https://search.stillhousedata.com/fund/S000010228) | Pioneer Short Term Income Fund | $1.8M | 15.43% |
| Brookfield Infrastructure Income Fund Inc. | Brookfield Infrastructure Income Fund Inc. | $1.1M | 1.98% |
| [BNY Mellon Core Plus Fund](https://search.stillhousedata.com/fund/S000059721) | BNY Mellon Absolute Insight Funds, Inc. | $854K | 3.36% |
| [PIMCO StocksPLUS Fund](https://search.stillhousedata.com/fund/S000009704) | PIMCO Funds | $798K | 3.26% |
| [Federated Hermes Global Allocation Fund](https://search.stillhousedata.com/fund/S000009117) | Federated Hermes Global Allocation Fund | $80K | 2.74% |
| [Six Circles Global Bond Fund](https://search.stillhousedata.com/fund/S000068181) | SIX CIRCLES TRUST | $48K | 0.03% |
| [PGIM Short Duration Multi-Sector Bond Fund](https://search.stillhousedata.com/fund/S000043499) | Prudential Investment Portfolios, Inc. 17 | $20K | 0.03% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/55336VAK6.md)
- [Search all SEC filings, advisers and people on Adviser Search](https://search.stillhousedata.com/)

---

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.