401(k) · DOL Form 5500 · 2024
Martin Marietta Materials, Inc. 401(k) Plan
Data updated 2026-08-25
- $903M
- Total assets Above avg plan size
- 8,807
- Participants Very large workforce
- 98th
- Percentile by assets National rank
- $102,585
- Avg per participant Below avg balance/head
Official DOL plan name: Martin Marietta Savings and Investment Plan · Sponsored by Martin Marietta Materials, Inc. · North Carolina · Mining & Oil Extraction
$903M in assets, 8,807 participants
Martin Marietta Materials, Inc.'s Martin Marietta Savings and Investment Plan reported $903M in total assets and 8,807 participants in its 2024 DOL Form 5500 filing, ranking in the 98th percentile by assets among filed plans. Figures are as reported by the plan sponsor to the Department of Labor, not audited or endorsed by PlainRetire.
- #765 in Mining & Oil Extraction (785 peers)
Coverage in North Carolina
Martin Marietta Savings and Investment Plan covers 8,807 participants in North Carolina, 11x the typical North Carolina plan (state average ~819 per filing). Assets: $903M.
- #765
- in Mining & Oil Extraction (785 peers)
- +7.8%
- assets growth YoY
- 9.1×
- vs typical plan assets (national mean)
Martin Marietta Savings and Investment Plan's outsized position by total assets
Martin Marietta Savings and Investment Plan vs every filed plan by assets
End-of-year total assets · plan year 2024 · DOL Form 5500
$903,468,141 Top 2% higher than 98% of 123,620 filed plans
Dashed line + filled bar = this entry, among filed plans.
Source U.S. Department of Labor Form 5500 filings (EBSA) · plan year 2024
Martin Marietta Savings and Investment Plan's large-plan peer group by participant headcount
Plan-year 2024 Form 5500 filings with a reported participant count, partitioned by headcount band, not by assets. Martin Marietta Savings and Investment Plan lands in the large band (8,807 participants).
What changed between DOL Form 5500 filings
plan year 2023 → plan year 2024
- Martin Marietta Savings and Investment Plan reported net income fell from $127M in the plan year 2023 filing to $65M in the plan year 2024 filing.
- Martin Marietta Savings and Investment Plan end-of-year assets rose from $838M in the plan year 2023 filing to $903M in the plan year 2024 filing.
- Martin Marietta Savings and Investment Plan reported participants fell from 8,839 in the plan year 2023 filing to 8,807 in the plan year 2024 filing.
Form 5500 schedule snapshot
Filing strip 561848578 · Martin Marietta Materials, Inc. PY 2024 · 401(k)
Martin Marietta Savings and Investment Plan · $903M · 8,807 · 98th
- IND $903M
- EOY 8,807
- 5500 98th
- ASSETS 401(k)
- PCT near Brotherhood of Locomotive Engineers 401(k) Savings Employees of Csx Transportation Inc.
- EIN ind #765
Stamps derive from this plan's Form 5500 line items (assets, participants, type, EIN, cohort placement) - not a quality rating of the sponsor. Read with Mining & Oil Extraction retirement plans → · Plans in North Carolina →
Martin Marietta Savings and Investment Plan in the asset neighbourhood
North Carolina filing particulars
| Total Assets (Beginning of Year) | $838M |
|---|---|
| Net Assets (End of Year) | $903M |
| Net Income | $65M |
| Employer EIN | 561848578 |
| Plan Effective Date | 1996-10-18 |
| Filing Status | FILING RECEIVED |
Sponsor Plan History (Martin Marietta Materials, Inc.)
Sponsor-wide plan assets over time
All Martin Marietta Materials, Inc. plans reported in each filing year
- Latest sponsor-wide plan assets
- $2.2B 20.16852587311399% vs 2022
- 2024 filing year
| Year | Plans | Participants | Total Assets |
|---|---|---|---|
| 2022 | 2 | 16,651 | $1.8B |
| 2023 | 2 | 17,385 | $2.0B |
| 2024 | 2 | 17,471 | $2.2B |
Nearby 401(k) Plans in North Carolina
Peer 401(k) plans, same state, same plan type, ranked by total assets.
- The Bank of America 401(k) Plan $62.9B · 168,963
- Honeywell 401(k) Plan $16.3B · 39,468
- Duke Energy Retirement Savings Plan $11.3B · 27,341
- Nucor Corporation Profit Sharing and Retirement Savings Plan $9.3B · 27,070
- Truist Financial Corporation 401(k) Savings Plan $9.2B · 52,699
Scale composition for Martin Marietta Savings and Investment Plan
Martin Marietta Savings and Investment Plan reports $903M in end-of-year assets across 8,807 participants (0.007% of the $12.3T held by all Form 5500 filers in the national rollup , and 0.009% of 93,925,755 covered participants) - about $102,585 per participant (74% of the national average assets-per-participant) . Net income for plan year 2024 was $65M.
This plan identity (EIN 561848578, plan #006) has 3 Form 5500 filings on file from 2022 to 2024 , with end-of-year assets moving from $711M to $903M (+27.0%) while covered participants moved from 8,237 to 8,807 . Single-year sparse filers cannot show that trail.
| Plan year | Participants | EOY assets | Filing |
|---|---|---|---|
| 2022 | 8,237 | $711M | Open filing |
| 2023 | 8,839 | $838M | Open filing |
| 2024 · index core | 8,807 | $903M | This page |
The same sponsor also keeps 1 other index-core plan on PlainRetire:
- Martin Marietta Pension Plan (Defined Benefit (Pension), $1.3B, 8,664 participants)
Martin Marietta Savings and Investment Plan's out-of-state 401(k) peers by assets and headcount
Outside North Carolina, the nearest 401(k) by assets is Brotherhood of Locomotive Engineers 401(k) Savings Employees of Csx Transportation Inc. in NY ($903M); by covered participants it is Mattress Firm, Inc. 401(k) Plan in TX (8,812 participants). Same-state nearby plans are listed separately above.
Closest by plan assets
Nearest other-state filings by tot_assets_eoy ($903M here).
- Brotherhood of Locomotive Engineers 401(k) Savings Employees of Csx Transportation Inc. (NY) $903M · 5,211
- Health First Retirement Savings Plan (FL) $903M · 9,129
- Sia Retirement Plan (IN) $903M · 5,957
- Mcgraw Hill 401(k) Plan (NY) $906M · 3,371
Similar participant headcount
Nearest other-state filings by covered participants (8,807 participants); asset peers above are excluded.
- Mattress Firm, Inc. 401(k) Plan (TX) 8,812 · 5 off
- Infinity Healthcare Mgmt. 401(k) Plan (IL) 8,796 · 11 off
- The Goodyear Tire & Rubber Company Savings Plan for Retail Employees (OH) 8,826 · 19 off
- Bertelsmann 401(k) Savings Plan (NY) 8,782 · 25 off
DOL Form 5500 plan year 2024. Asset totals can differ widely at the same headcount; neither axis is a quality rating.