You are eligible to participate in the 401(k) on the first of the month following one month of continuous service, and are at least age 18.

If you have not enrolled in the Plan within 35 days from your eligibility, you will be automatically enrolled in the Plan at a contribution rate of 6% of your pretax eligible earnings. Your contribution rate will automatically increase by 1% each year, up to a maximum rate of 10%.

Based on your date of birth and assuming a retirement age of 65, you will be invested in the Custom Retirement Target Date Fund, with a corresponding target retirement date. Target Date Funds are an asset mix of stocks, bonds and other investments that automatically becomes more conservative as the fund approaches its target retirement date and beyond. Principal invested is not guaranteed.

We encourage you to take an active role in the Plan and to choose a contribution rate and investment options that are appropriate for you. If you do not wish to contribute to the Plan, you must change your contribution rate to 0% within the first 30 days of your eligibility. You may change your contribution rate at any time online, or by calling the Fidelity at 800-835-5095, Monday to Friday, 8:30 a.m.– 8:30 p.m. ET.

Enroll online at any time, or by calling the Fidelity at 800-835-5095.

Your enrollment becomes effective once you elect a deferral percentage, which initiates deduction of your contributions from your pay. These salary deductions will generally begin with your next pay period after we receive your enrollment information, or as soon as administratively possible.

You can contribute 1%–75% of your eligible weekly base pay as pretax, Roth, and after-tax contributions, or a combination, up to the annual IRS dollar limits.

If you have reached age 50 or will reach 50 during the calendar year January 1 – December 31 and are making the maximum plan or IRS contribution, you may make an additional catch-up contribution each pay period. The maximum annual catch-up contribution is $8,000. Going forward, catch-up contribution limits will be subject to cost of living adjustments (COLAs) in $500 increments.

The Annual Increase Program is a convenient way to help boost workplace savings contributions on a regular basis to keep you on track to meet your retirement goals. If you are automatically enrolled in the plan, your contribution rate will automatically increase by 1% each year, up to a maximum rate of 10%, unless you elect otherwise. If you would prefer to elect an annual increase percentage different from the designated 1%, or if you elect not to participate in the Annual Increase Program, please contact Fidelity at 800-835-5095 or go online and indicate your preferences.

A Roth contribution to your retirement savings plan allows you to make after-tax contributions and take any associated earnings completely tax free at retirement - as long as the distribution is a qualified one. A qualified distribution, in this case, is one that is taken at least five tax years after your first Roth 401(k) contribution and after you have attained age 59½, or become disabled or die. Through automatic payroll deduction, you may contribute between 1% and 75% of your eligible compensation as designated Roth contributions, up to the annual IRS dollar limits.

Find more information online within the "Plan & Learn" drop down and "Learn" section of NetBenefits^®.

The IRS contribution limit for 2026 is $24,500.

The 401(k) helps your retirement savings grow by matching your contributions. Kiewit will match dollar for dollar up to 6% of your eligible weekly base salary of pretax and/or Roth contributions you make to the 401(k) on a weekly basis. There is no matching on after-tax contributions. You may also receive an annual discretionary contribution. The discretionary contribution can range from 0–4% of your eligible base wages. Stockholders are not eligible for the company contribution and it is not prorated.

Student Loan Matching Program:
If you have qualified student loan repayments that make it difficult to contribute to the 401(k) Plan and receive the full company match, you can enroll in the Student Loan Matching Program to have your loan repayments treated as though they are the equivalent of employee 401(k) contributions that qualify for up to 6% of matching contributions. On NetBenefits, you may enroll or learn more about the Program, or contact Fidelity at 800-835-5095.

Refer to your Summary Plan Description for more details on vesting. The Summary Plan Description is on the Plan Information and Documents page within NetBenefits.

To help you meet your investment goals, the Plan offers you a range of options. You can select a mix of investment options that best suits your goals, time horizon, and risk tolerance. The many investment options available through the Plan include conservative, moderately conservative, and aggressive funds. A complete description of the Plan’s investment options and their performance, as well as planning tools to help you choose an appropriate mix, are available online.

We encourage you to take an active role in the Peter Kiewit Sons’, Inc. Retirement Savings Plan and choose investment options that best suit your goals, time horizon, and risk tolerance. If you do not select specific investment options in the Plan, your contributions will be invested in the Custom Retirement Target Date Fund with the target retirement date closest to the year you might retire, based on your current age and assuming a retirement age of 65, at the direction of Peter Kiewit Sons, Inc.

If no date of birth or an invalid date of birth is on file at Fidelity, your contributions may be invested in the Post Retirement Custom Target Date Fund. More information about the Custom Retirement Target Date Fund options can be found online.

Target Date Funds are an asset mix of stocks, bonds and other investments that automatically becomes more conservative as the fund approaches its target retirement date and beyond. Principal invested is not guaranteed.

For those desiring the most investment flexibility and choice, the Plan offers Fidelity BrokerageLink^®, a self-directed brokerage account, which provides you with the opportunity to select from thousands of investment options beyond those offered in the standard plan lineup. More information about BrokerageLink^®, including an overview, the commission schedule, and a fact sheet that outlines the Plan-level restrictions and other settings, is available online at NetBenefits. Click on "Quick Links," then select "BrokerageLink."

Although your 401(k) account is intended for the future, you may borrow from your account for many reasons. Go to the Loans or Withdrawals section of NetBenefits for more details or to request a loan. You can access loan modeling tools that illustrate the potential impact of a loan on the long-term growth of your account.

Withdrawals from the 401(k) are generally permitted when you attain age 59½, terminate your employment, retire, become permanently disabled, or have severe financial hardship as defined by the plan. Refer to the Summary Plan Description available on the Plan Information and Documents page within NetBenefits or call Fidelity at 800-835-5095, Monday to Friday, 8:30 a.m.– 8:30 p.m. ET, for more details.

On NetBenefits^®, you will also find a withdrawal modeling tool, which shows the amount of federal income taxes and early withdrawal penalties you might pay, along with the amount of earnings you could potentially lose by taking a withdrawal.

You are permitted to roll over eligible pretax contributions from another 401(k) plan, 403(b) plan, or a governmental 457(b) retirement plan account, or eligible pretax contributions from conduit or non-conduit individual retirement accounts (IRAs). Rollovers from Roth and after-tax sources are allowed.

Be sure to consider all your available options and the applicable fees and features of each before moving your retirement assets.

If you have not already selected your beneficiaries, or if you have experienced a life-changing event such as a marriage, divorce, birth of a child, or a death in the family, it’s time to consider your beneficiary designations. Fidelity’s Online Beneficiaries Service offers a straightforward, convenient process that takes just minutes. To make your elections, click on the “Profile” icon at the top of the screen, then select “Beneficiaries” and follow the online instructions.