Martin Marietta Materials Inc MARTIN MAR MTLS is a security (CUSIP 573284AX4) tracked across SEC portfolio filings. 2 registered fund positions totaling $1.5M via N-PORT as of 2026-03-31.
| Fund | Registrant | Value | % of fund |
|---|---|---|---|
| VANGUARD LONG-TERM BOND INDEX FUND | VANGUARD BOND INDEX FUNDS | $1.5M | 1.77% |
| VANGUARD CORE-PLUS BOND INDEX ETF | VANGUARD QUANTITATIVE FUNDS | $7K | 0.61% |