# MARTIN MARIETTA MATLS INC COM

MARTIN MARIETTA MATLS INC COM is a security (CUSIP 573284106) tracked across SEC portfolio filings. 1,107 institutional managers reported $32.1B on Form 13F as of 2026-06-30; 77 registered fund positions totaling $2.5B via N-PORT as of 2026-06-30.

## Summary

- Issuer: MARTIN MARIETTA MATLS INC
- Class: COM
- CUSIP: 573284106
- Asset category: EC
- 13F holders: 1,107
- 13F value: $32.1B
- 13F period: 2026-06-30
- N-PORT fund positions: 77
- N-PORT value: $2.5B
- N-PORT report: 2026-06-30

## Top institutional holders (Form 13F)

_Showing 15 of 1,107 managers by value._

| Manager | Location | Value | Shares |
| --- | --- | --- | --- |
| [VANGUARD GROUP INC](https://search.stillhousedata.com/firm/105958) | Valley Forge, PA | $4.6B | 7,373,884 |
| BlackRock, Inc. | New York, NY | $2.8B | 4,685,757 |
| STATE STREET CORP | BOSTON, MA | $1.7B | 2,877,568 |
| FMR LLC | BOSTON, MA | $1.5B | 2,607,979 |
| BANK OF AMERICA CORP /DE/ | CHARLOTTE, NC | $1.4B | 2,399,779 |
| PRINCIPAL FINANCIAL GROUP INC | DES MOINES, IA | $1.2B | 2,116,369 |
| [Aristotle Capital Management, LLC](https://search.stillhousedata.com/firm/109876) | LOS ANGELES, CA | $1.2B | 1,955,100 |
| JPMORGAN CHASE & CO | NEW YORK, NY | $1.1B | 1,860,226 |
| VICTORY CAPITAL MANAGEMENT INC | San Antonio, TX | $963.8M | 1,637,147 |
| [GEODE CAPITAL MANAGEMENT, LLC](https://search.stillhousedata.com/firm/115504) | BOSTON, MA | $931.8M | 1,588,934 |
| MORGAN STANLEY | NEW YORK, NY | $789.8M | 1,341,601 |
| Select Equity Group, L.P. | NEW YORK, NY | $608.4M | 1,033,420 |
| BAILLIE GIFFORD & CO | EDINBURGH, X0 | $572.0M | 991,786 |
| GOLDMAN SACHS GROUP INC | NEW YORK, NY | $521.5M | 885,855 |
| [ALKEON CAPITAL MANAGEMENT LLC](https://search.stillhousedata.com/firm/118059) | New York, NY | $440.0M | 747,351 |

## Top fund holders (N-PORT)

_Showing 15 of 77 fund positions by value._

| Fund | Registrant | Value | % of fund |
| --- | --- | --- | --- |
| State Street(R) SPDR(R) S&P 500(R) ETF Trust | State Street(R) SPDR(R) S&P 500(R) ETF Trust | $414.7M | 6.36% |
| [Pioneer Fund](https://search.stillhousedata.com/fund/S000003991) | PIONEER FUND /MA/ | $353.7M | 394.37% |
| [T. Rowe Price Mid-Cap Growth Fund, Inc.](https://search.stillhousedata.com/fund/S000002102) | T. ROWE PRICE MID-CAP GROWTH FUND, INC. | $266.0M | 118.08% |
| ACAP Strategic Fund | ACAP Strategic Fund | $209.9M | 202.75% |
| [Invesco S&P 500 Equal Weight ETF](https://search.stillhousedata.com/fund/S000060812) | Invesco Exchange-Traded Fund Trust | $174.7M | 19.89% |
| [T. Rowe Price Value Fund, Inc.](https://search.stillhousedata.com/fund/S000002125) | T. ROWE PRICE VALUE FUND, INC. | $156.0M | 48.94% |
| Advantage Advisers Xanthus Fund, L.L.C. | Advantage Advisers Xanthus Fund, L.L.C. | $119.8M | 404.41% |
| [JPMorgan Mid Cap Value Fund](https://search.stillhousedata.com/fund/S000004475) | J.P. Morgan Fleming Mutual Fund Group, Inc. | $95.9M | 88.41% |
| [T. Rowe Price U.S. Large-Cap Core Fund, Inc.](https://search.stillhousedata.com/fund/S000026126) | T. ROWE PRICE U.S. LARGE-CAP CORE FUND, INC. | $91.5M | 55.42% |
| [FAM DIVIDEND FOCUS FUND](https://search.stillhousedata.com/fund/S000010873) | Fenimore Asset Management Trust | $64.3M | 1019.29% |
| [T. Rowe Price Dividend Growth Fund, Inc.](https://search.stillhousedata.com/fund/S000002075) | T. ROWE PRICE DIVIDEND GROWTH FUND, INC. | $64.3M | 28.36% |
| [GENERAL ELECTRIC RSP U.S. EQUITY FUND](https://search.stillhousedata.com/fund/S000011836) | GENERAL ELECTRIC RSP U.S. EQUITY FUND | $58.5M | 90.45% |
| [ELFUN TRUSTS](https://search.stillhousedata.com/fund/S000011821) | ELFUN TRUSTS | $40.7M | 97.56% |
| [Fidelity Contrafund](https://search.stillhousedata.com/fund/S000006037) | Fidelity Contrafund | $40.3M | 2.55% |
| [Fidelity Leveraged Company Stock Fund](https://search.stillhousedata.com/fund/S000007200) | Fidelity Securities Fund | $25.9M | 63.00% |

## More

- [This page as markdown (for LLM agents)](https://search.stillhousedata.com/security/573284106.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.