# Martin Marietta Materials Inc MARTIN MAR MTLS

Martin Marietta Materials Inc MARTIN MAR MTLS is a security (CUSIP 573284BA3) tracked across SEC portfolio filings. 11 registered fund positions totaling $12.0M via N-PORT as of 2026-05-29.

## Summary

- Issuer: Martin Marietta Materials Inc
- Class: MARTIN MAR MTLS
- CUSIP: 573284BA3
- Asset category: DBT
- 13F holders: 0
- N-PORT fund positions: 11
- N-PORT value: $12.0M
- N-PORT report: 2026-05-29

## Top fund holders (N-PORT)

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| [VANGUARD INTERMEDIATE-TERM BOND INDEX FUND](https://search.stillhousedata.com/fund/S000002561) | VANGUARD BOND INDEX FUNDS | $6.6M | 1.27% |
| [PGIM Core Bond Fund](https://search.stillhousedata.com/fund/S000004691) | Target Portfolio Trust | $2.5M | 10.43% |
| [Six Circles Global Bond Fund](https://search.stillhousedata.com/fund/S000068181) | SIX CIRCLES TRUST | $731K | 0.43% |
| [Advantage CoreAlpha Bond Master Portfolio](https://search.stillhousedata.com/fund/S000062381) | Master Investment Portfolio II | $620K | 9.22% |
| [BlackRock Balanced Fund, Inc.](https://search.stillhousedata.com/fund/S000002175) | BlackRock Balanced Fund, Inc. | $533K | 2.92% |
| [VANGUARD BALANCED INDEX FUND](https://search.stillhousedata.com/fund/S000002560) | VANGUARD VALLEY FORGE FUNDS | $300K | 0.05% |
| [Franklin Investment Grade Corporate ETF](https://search.stillhousedata.com/fund/S000053775) | Franklin Templeton ETF Trust | $200K | 3.39% |
| [BlackRock Balanced Portfolio](https://search.stillhousedata.com/fund/S000003863) | BlackRock Series Fund, Inc. | $150K | 3.22% |
| [Pioneer Balanced ESG Fund](https://search.stillhousedata.com/fund/S000010109) | Pioneer Series Trust IV | $142K | 3.40% |
| [Pioneer Bond VCT Portfolio](https://search.stillhousedata.com/fund/S000010172) | PIONEER VARIABLE CONTRACTS TRUST /MA/ | $128K | 9.94% |
| [BlackRock Total Return Fund](https://search.stillhousedata.com/fund/S000004071) | BlackRock Bond Fund, Inc. | $100K | 0.06% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/573284BA3.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.