The Plan at a Glance

MMC Benefits Handbook


Plan Feature	Highlights
Plan Type	The Marsh & McLennan Companies 401(k) Savings & Investment Plan is a tax-qualified profit sharing plan with an employee stock ownership feature and a 401(k) component, designed to encourage saving through a number of investment opportunities, including the opportunity to invest in the MMC Stock Fund (a fund comprised principally of Marsh & McLennan Companies, Inc. common stock (par value of $1.00 per share)).
Eligibility	You are eligible to participate and make employee contributions as soon as you are classified as a US regular or temporary employee (including US expatriates) of Marsh & McLennan Companies* or any subsidiary or affiliate of Marsh & McLennan Companies, paid on a US payroll and are at least 18 years of age. You are not eligible to participate in the Plan if you are an employee of a non-participating company who is performing services for a US company, whose legal employer remains a non-participating company. You are eligible for Company matching contributions if you elect to contribute and have completed one year of Vesting Service. You are eligible for fixed Company contributions if you are in an eligible company and have completed one year of vesting service. See "Participating in the Plan" for details.
Enrollment	You can enroll or opt out of the employee contribution portion of the Plan as soon as you are eligible, or as of the first day of any future pay period, as long as you remain eligible. If you do not opt out within your first 30 days of employment, you will automatically be enrolled in the employee contribution portion of the Plan. See "How the Plan Works" for details.
Your Contributions	As soon as you enroll in the Plan, you can start contributing to your account. You may contribute: 1% to 75% of your eligible base pay before deductions as before-tax contributions to the Plan. 1% to 75% of your eligible base pay before deductions as Roth 401(k) contributions to the Plan. 1% to 15% of your eligible base pay before deductions as traditional after-tax contributions to the Plan. The total of your Roth 401(k), before-tax, and traditional after-tax contributions may not exceed 75% of your eligible base pay. Rollover contributions from your previous employer's tax-qualified plan, section 403(b) plan or governmental section 457(b) plan (including any Roth contributions) or from a Conduit Individual Retirement Account. Catch-up contributions and Roth catch-up contributions if you will be age 50 or older by the end of the calendar year (subject to the IRS annual combined catch-up and Roth catch-up contribution limit of $7,500 in 2024). You may also make in-plan Roth conversions from your after-tax contribution accounts under the Plan. Your before-tax and after-tax contributions are deducted from your paycheck each pay period and change automatically when your eligible base pay changes. All contributions are subject to government-imposed limits. Before-tax and Roth 401(k) contributions to a prior unrelated employer's plan made in the same year you are hired by Marsh McLennan also count toward your individual IRS dollar limit for the year but are not taken into account in the Marsh & McLennan Companies 401(k) Savings & Investment Plan. See "Your Contributions" for details.
Company Matching Contributions	After you complete one year of vesting service: the Company will contribute a Company matching contribution each pay period of 50% on the first 6% of your eligible base pay that you contribute in a pay period to the Plan. The Company contributed core Company matching contributions and annual discretionary performance-based Company matching contributions (paid in the first quarter of the following year) for Plan years 2006, 2007 and 2008. Throughout this document "Company Matching Contributions" refers collectively to the core Company matching contributions and the discretionary performance-based Company matching contributions. On and after January 1, 2009 core Company matching contributions are referred to as Company matching contributions. All contributions are subject to government-imposed limits. Before-tax and Roth 401(k) contributions made to a prior unrelated employer's plan in the same year you are hired by Marsh McLennan also count toward your individual IRS dollar limit but are not taken into account in the Marsh & McLennan Companies 401(k) Savings & Investment Plan. See "Company Matching Contributions" for details.
Fixed Company Contributions	After you complete one year of vesting service: If you are employed by an eligible participating company, the Company will contribute a fixed Company contribution equal to 4% of your eligible base pay for each payroll period to the Plan, whether or not you make an employee contribution to the Plan for such payroll period. These contributions are referred to as "fixed Company contributions." Eligible participating companies include all MMC companies except Marsh & McLennan Agency LLC. On and after January 1, 2017, the Company matching contributions and fixed Company contributions are collectively referred to as "Company contributions." All contributions are subject to government-imposed limits. Before-tax and Roth 401(k) contributions made to a prior unrelated employer's plan in the same year you are hired by Marsh McLennan also count toward your individual IRS dollar limit but are not taken into account in the Marsh & McLennan Companies 401(k) Savings & Investment Plan. See "Fixed Company Matching Contributions" for details.
Vesting	You are always fully Vested in the value of your own contributions. Your vested percentage of your Company matching contributions depends on your years of vested service. See "Vesting" for more details.
Investing Contributions	You can invest your account in any fund offered under the Plan. You can change the investment direction of future employee before-tax and after-tax contributions and Company contributions. You may transfer/reallocate all or portions of your existing account balance in shares, percentages or dollars to any of the funds offered by the Plan. See "Investing Your Account Balance" for more details.
When Benefits are Paid	You may be eligible to withdraw money from your vested account while you are working by taking one of the in-service withdrawals allowed by the Plan as well as a financial hardship withdrawal. When you leave the Company: you are entitled to your vested account balance. your account must be distributed if the vested account value is $1,000 or less, otherwise. if your vested account value is more than $1,000, your account can remain in the Plan until the April 1st of the year following the calendar year in which you attained age 73 (if you were born after December 31, 1950) or age 72 (if you were born after June 30, 1949 but before January 1, 1951) or age 70-1/2 (if you were born before July 1, 1949), when payments must begin. See "When Benefits Are Paid" for details.
Contact Information	For more information, contact the: Marsh & McLennan Companies 401(k) Savings & Investment Plan Marsh McLennan HR Services Phone: +1 866 374 2662

* Reference in this document to "Marsh & McLennan Companies'' means Marsh & McLennan Companies, Inc. and its subsidiaries and affiliates other than Marsh & McLennan Agency LLC and its subsidiaries and affiliates. Reference to "MMA" means Marsh & McLennan Agency LLC and its subsidiaries and affiliates. References to Marsh & McLennan Companies mean Marsh McLennan.

** Please note that in this document references are made to catch-up and Roth catch-up contributions. Catch-up contributions are deducted from your pay on a before-tax basis. Roth catch-up contributions are deducted from your pay on an after-tax basis.