Martin Marietta Materials 401(k) match, vesting and fees
What Martin Marietta Materials' 401(k) plan says about matching contributions
Plan features
Match, vesting and enrollment details have not been published from this plan's audit report yet. The figures below come from the structured filing.
| Recordkeeper | Fidelity Investments Institutional | Schedule C ↗ |
| Independent auditor | Forvis Mazars, LLP (unmodified opinion) | Schedule H ↗ |
| Plan type and status | 401(k) · Active | Form 5500 ↗ |
How the plan compares
Plan year 2025 medians for 49 defined-contribution plans with 10,000 to 49,999 participants.
| Martin Marietta Materials: employer contribution per participant | $2,127 | |
| Peer median | $2,223 |
| Martin Marietta Materials: average balance | $98,565 | |
| Peer median | $94,186 |
| Martin Marietta Materials: admin expenses ÷ assets | 0.07% | |
| Peer median | 0.05% |
Admin expenses are the plan's reported administrative expenses divided by its assets; they do not include fund expense ratios.
Plan history
Plan assets went from $833M at the end of plan year 2021 to $1.1B at the end of plan year 2025.
| Plan year | Participants | Assets | Employer contributions | Per participant | Admin expense ratio | Match formula | Filing |
|---|---|---|---|---|---|---|---|
| 2025 | 11,214 | $1.1B | $23.1M | $2,127 | 0.07% | Not published | Form 5500 ↗ |
| 2024 | 11,063 | $903M | $22.3M | $2,100 | 0.08% | Not published | Form 5500 ↗ |
| 2023 | 11,141 | $838M | $21.8M | $2,035 | 0.09% | Not published | Form 5500 ↗ |
| 2022 | 11,026 | $711M | $20.3M | $1,898 | 0.09% | Not published | Form 5500 ↗ |
| 2021 | 10,117 | $833M | $18.3M | $1,853 | 0.08% | Not published | Form 5500 ↗ |
Other Martin Marietta Materials plans (1)
Each plan files its own Form 5500. Figures are from each plan's latest filing.
Martin Marietta Pension Plan
Plan features
Match, vesting and enrollment details have not been published from this plan's audit report yet. The figures below come from the structured filing.
| Independent auditor | Forvis Mazars, LLP (unmodified opinion) | Schedule H ↗ |
| Plan type and status | Pension (defined benefit) · Active | Form 5500 ↗ |
Common questions
Does Martin Marietta Materials match 401(k) contributions?
The match terms for the Martin Marietta Savings and Investment Plan have not been published from its filing yet. The plan year 2025 filing reports $23.1M in employer contributions, about $2,127 per participant. That total includes any match and profit-sharing; it is not a match formula.
When is the Martin Marietta Materials 401(k) match vested?
The vesting schedule for the Martin Marietta Savings and Investment Plan is not in the data published so far. Your Summary Plan Description states it.
Who manages the Martin Marietta Materials 401(k)?
The recordkeeper listed on Schedule C of the plan year 2025 filing is Fidelity Investments Institutional. The plan administrator is Martin Marietta Materials, Inc..
I left Martin Marietta Materials. How do I find my old 401(k)?
Your account stays in the plan until you move it. Contact the plan administrator (Martin Marietta Materials, Inc., (919) 781-4550) or the recordkeeper, Fidelity Investments Institutional. The Martin Marietta Materials old 401(k) page lists the contacts from every plan filing. Find an old Martin Marietta Materials 401(k)
Data from the public Form 5500 annual reports Martin Marietta Materials filed with the U.S. Department of Labor (plan years 2021 and 2022 and 2023 and 2024 and 2025) and, where noted, the attached independent auditor's report. Plan terms may have changed since the filing; check your current Summary Plan Description. PlanFacts is not affiliated with Martin Marietta Materials. Not financial advice. Report a correction · Methodology