401(k) plan (U.S. Mountaineers)

The Iron Mountain 401(k) retirement plan helps you save for the future and build your financial stability.

Eligibility: Regular full-time or part-time Mountaineers located in the U.S. who are at least 18 years of age are generally eligible to participate in The Iron Mountain Companies 401(k) Plan.

Overview:

• You are automatically enrolled in the Iron Mountain 401(k) retirement plan at a 3% before tax contribution rate per pay period.

• The contribution will automatically increase by 1% each year up to 15%.

• Iron Mountain matches 67 cents for each dollar you contribute, up to the first 6% of your eligible earnings.

• You are fully vested in all contributions from day one.

• You can choose to contribute before taxes or after taxes (a Roth account).

• You can opt out or change your contribution amount anytime through Fidelity NetBenefits or by contacting the Fidelity Retirement Benefits Center within 30 days of your hire date.

• How it works

  You are automatically enrolled in the Iron Mountain 401(k) retirement plan at a before tax contribution rate of 3% per pay period. We automatically increase this contribution by 1% each year, up to a maximum of 15% of pay.

  Iron Mountain matches 67 cents for each dollar you contribute, up to the first 6% of your eligible earnings each paycheck. If you contribute 6%, you’ll see 4% in employer matching contributions added to your retirement savings.

  View the Plan FAQs here and visit Fidelity NetBenefits for complete details.

• Opting out

  If you want to opt out, you need to do so within 30 days of your hire date through the Fidelity NetBenefits website or mobile app or by calling the Fidelity Retirement Benefits Center at 800-835-5095 (English) or 800-587-5282 (Spanish), Monday through Friday, from 8:30 am to midnight ET.

• Contribution amounts

  You can contribute up to 75% of your base pay in before-tax (traditional) and Roth (after-tax) contributions, up to IRS code limits.

• Ways to save

  Iron Mountain offers two contribution options to help you meet your retirement planning needs.

  For both options:

  Iron Mountain matches 67 cents for each dollar you contribute, up to 6% of your eligible earnings each paycheck.

  For 2024, the combined annual contribution limit is:

  • Age 49 or younger: $23,000

  • Age 50 or older: $30,500 (you may contribute an additional $7,500 as a catch-up contribution)

  For 2025, the combined annual contribution limit is:

  • Age 49 or younger: $23,500

  • Age 50 or older: $31,000 (you may contribute an additional $7,500 as a catch-up contribution)

  Contact a tax professional for more information.

  Before Tax Option	After Tax (Roth) Option
  Your contributions are deducted before taxes are taken from your paycheck. You will owe taxes on distributions and any investment earnings.	Your contributions are deducted after taxes are taken from your paycheck. Distributions will be tax-free as will any investment earnings that meet certain criteria.

• Vesting

  Vesting refers to the portion of the 401(k) account that you own. You vest, or own, all the contributions made to your account, including any matching contributions from Iron Mountain, beginning on day 1. This means you own all contributions both you and Iron Mountain make to your account when contributions first begin.

  Any company match made into the U.S. 401(k) prior to 2020 is subject to a vesting schedule.

• Changing your 401(k) contribution amount

  You can change the amount you contribute to your 401(k) account at any time. Go to the Fidelity NetBenefits website or mobile app to increase, decrease, or stop your contributions.

• Withdrawals

  In-service withdrawals are allowed in certain situations, such as:

  • Loans

  • Hardships

  • Disability

  For more information about your options, visit the Fidelity NetBenefits website or contact the Fidelity Retirement Benefits Center at 800-835-5095 (English) or 800-587-5282 (Spanish), Monday through Friday, from 8:30 am to midnight ET.

• Designate a beneficiary

  It’s important to designate one or more beneficiaries for your 401(k) to ensure your money is distributed according to your wishes after death and to avoid a long and costly legal process for your loved ones.

  Designate and update your beneficiaries through your Profile & Settings on the Fidelity NetBenefits website or mobile app.

• Have a 401(k) account from a previous employer?

  You may be able to roll over account balances from other employer-sponsored, qualified 401(k) accounts into your Iron Mountain 401(k) retirement plan. Go to the Fidelity NetBenefits website to access the rollover instructions. If you need help, contact the Fidelity Retirement Benefits Center.

• Contact

  For more information, visit the Fidelity NetBenefits website or NetBenefits mobile app or contact the Fidelity Retirement Benefits Center at 800-835-5095 (English) or 800-587-5282 (Spanish), Monday through Friday, from 8:30 am to midnight ET. The Fidelity Retirement Benefits Center can support you in your language of choice; interpreters are available by contacting the English contact number.