Recordkeeping fees per participant
not reported
Not reported on this filing.
Employers › MARSH & McLENNAN COMPANIES
MARSH & McLENNAN COMPANIES 401(k)
- MRSH NYSE
- Finance and insurance
- New York, NY
- EIN 36-2668272
- 2 plans with Schedule H financials
- Plan year 2024
- MARSH & McLENNAN COMPANIES, INC.
- filed as Marsh & Mclennan Companies, Inc.
Total assets, end of year · largest plan, Marsh & Mclennan Companies 401(k) Savings and Investment Plan · plan year 2024
$7,405,052,698
32,879 participants with a balance. This filing reports no recordkeeping fee and no administrative expenses excluding investment management, so there is no headline cost figure.
Source
Schedule H, Part I line 1f col (b); TOT_ASSETS_EOY_AMT pos 61; filing 20251006144237NAL0003603617001, received 2025-10-06
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20251006144237NAL0003603617001, received 2025-10-06
Percentiles compare this plan with the Schedule H plans over $1B in assets of the same plan year, excluding final filings; shown only where at least 50 comparable plans report the figure. Plan year 2024-01-01 to 2024-12-31, filing received 2025-10-06.
Largest plan, all six figures: Marsh & Mclennan Companies 401(k) Savings and Investment Plan
Administrative expenses excluding investment management, per participant
not reported
Not reported on this filing.
Administrative expenses per participant
not reported
Not reported on this filing.
Administrative expenses as a share of assets
not reported
Not reported on this filing.
Employer contributions per participant
$4,649
Higher than 64% of the 1,135 plans over $1B that report it.
Source
= $152,866,555 / 32,879
Schedule H, Part II line 2a(1)(A); EMPLR_CONTRIB_INCOME_AMT pos 68; filing 20251006144237NAL0003603617001, received 2025-10-06
participants_with_balance: Form 5500, line 6g(2); PARTCP_ACCOUNT_BAL_CNT pos 78; filing 20251006144237NAL0003603617001, received 2025-10-06
Employer share of total contributions
34.8%
Higher than 57% of the 1,135 plans over $1B that report it.
Source
= $152,866,555 / $439,670,975
Schedule H, Part II line 2a(1)(A); EMPLR_CONTRIB_INCOME_AMT pos 68; filing 20251006144237NAL0003603617001, received 2025-10-06
total_contrib: Schedule H, line 2a(3); TOT_CONTRIB_AMT pos 72; filing 20251006144237NAL0003603617001, received 2025-10-06
47.8% of this plan's assets are held in a master trust. Costs reported at the trust level and allocated by the plan's share: administrative expenses $634,048 ($19.28 per participant including the plan's own Schedule H). Benchmarks and percentiles use the plan's own Schedule H only.
Plan terms, as stated in MARSH & McLENNAN COMPANIES, INC.'s SEC filings
Employer match
“For the period January 1, 2025 to August 31, 2025, the Company made matching contributions after completion of 1 year of vesting service, of 50% on the first 7% of eligible compensation which consisted of base rate of pay, earned commissions and regular draw, that participants contribute to the Plan in any pay period.”
Form 11-K filed 2026-06-22, for the year ended 2025-12-31 · plan description note, contributions · source document
Eligibility
“In accordance with the Plan provisions, employees who are paid on a U.S. payroll, are at least 18 years of age, and who are employees of any subsidiary or affiliate of Marsh & McLennan Agency LLC (the "Agency"), are eligible to contribute to the Plan.”
Form 11-K filed 2026-06-22, for the year ended 2025-12-31 · plan description note, general (fallback) · source document
Vesting
“Participants vest in the Company’s matching contribution as follows: 0% if less than 2 years of service, 33.33% after 2 years of service, 66.67% after 3 years of service and 100% after 4 years of service.”
Form 11-K filed 2026-06-22, for the year ended 2025-12-31 · plan description note, vesting · source document
Terms quoted from the filing for the year ended 2025-12-31. Figures cover plan year 2024. The plan document governs.
Plans sponsored
| Plan | Assets | Participants with a balance | Headline | Year |
|---|---|---|---|---|
| Marsh & Mclennan Companies 401(k) Savings and Investment Plan | $7,405,052,698 | 32,879 | 2024 | |
| Marsh & Mclennan Agency 401(k) Savings & Investment Plan | $1,518,156,186 | 14,995 | 2024 |
Alerts, claims and corrections
Sponsor name as filed: MARSH & MCLENNAN COMPANIES, INC.; SEC registrant: MARSH & MCLENNAN COMPANIES, INC. (CIK 62709, matched by EIN; display name from the Form 11-K cover).