# Marathon Petroleum Corp. MPC 3.8 04/01/28

Marathon Petroleum Corp. MPC 3.8 04/01/28 is a security (CUSIP 56585ABD3) tracked across SEC portfolio filings. 5 registered fund positions totaling $9.3M via N-PORT as of 2026-04-30.

## Summary

- Issuer: Marathon Petroleum Corp.
- Class: MPC 3.8 04/01/28
- CUSIP: 56585ABD3
- Asset category: DBT
- 13F holders: 0
- N-PORT fund positions: 5
- N-PORT value: $9.3M
- N-PORT report: 2026-04-30

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [PGIM Short-Term Corporate Bond Fund](https://search.stillhousedata.com/fund/S000004769) | Prudential Short-Term Corporate Bond Fund, Inc. | $7.2M | 8.75% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $1.1M | 0.19% |
| [BlackRock Total Return Fund](https://search.stillhousedata.com/fund/S000004071) | BlackRock Bond Fund, Inc. | $500K | 0.28% |
| [PGIM Core Bond Fund](https://search.stillhousedata.com/fund/S000004691) | Target Portfolio Trust | $376K | 1.55% |
| [PGIM Short Duration Multi-Sector Bond Fund](https://search.stillhousedata.com/fund/S000043499) | Prudential Investment Portfolios, Inc. 17 | $74K | 0.09% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/56585ABD3.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.