For individuals first hired prior to 2015, participation in the 401(k) plan is generally voluntary and begins as soon as administratively possible after you become eligible for and enroll in the 401(k) plan.

Individuals first hired on or after January 1, 2015 will be automatically enrolled in the 401(k) plan within sixty (60) days of satisfying the 401(k) plan eligibility requirements unless the individual affirmatively declines participation within the 60 day period. Participants who are automatically enrolled will have their deferral percentage election automatically set at three percent (3%) effective January 1, 2018, but may change their future deferral percentage at any time once enrolled, including reducing their deferral percentage to zero.

Automatic Enrollment for New Hires: Employees first hired on or after January 1, 2018, will be automatically enrolled in the Plan within sixty (60) days of satisfying the Plan's general eligibility requirements unless you affirmatively decline or "opt out" of the automatic enrollment during the 60-day period.

Participants who are automatically enrolled in the Plan will have their deferral percentage election automatically set at three percent (3%) but may change their future deferral percentages at any time after being enrolled, including electing to reduce their future deferral percentage to zero. (Automatic deferral percentages will appear as future dated deferrals and such that participants may review them in the NetBenefits® system if they wish to have the deferrals start sooner, change the deferral percentage, or stop the deferrals.)

The Plan will not automatically increase the annual deferral percentages; however, you can elect to have your deferral percentage automatically increased by a percentage amount each year if you wish by enrolling in Fidelity's Annual Increase Program.

Automatic deferrals will be invested in the Vanguard Target Retirement Trust Plus Fund nearest to the date you will attain age 65 unless you make an alternative investment fund election.

As a participant, you may change your investment options or your contribution percentage at any time by contacting Fidelity. Deferral contributions may range from 1% to 50% (90% if making catch-up contributions) of your eligible pay up to the applicable IRS limits.

Enrolling in the Plan or changing your default automatic enrollment is simple: Call Fidelity Customer Services at 800-835-5097 or log on online at www.401k.com.

You will need to decide the percentage of contributions you want deducted from your paycheck, whether you want to make those contributions on a pre-tax or post-tax basis, and how you would like your money invested. If you do not choose how you would like your money invested for any reason, Fidelity the Trustee will invest your undirected Account balance in the most appropriate Fidelity Freedom Fund offered as an investment option under the Plan based on your projected retirement date at age 65.

Automatic Deferrals for Legacy IMS and Quintiles Participants: Participants in either the legacy Quintiles 401(k) or IMS 401(k) Plans as of the Plans' merger effective January 1, 2018 will continue to participate subject to the automatic enrollment rules applicable prior to the Plan merger such that legacy IMS Participants hired after March 1, 2011 will remain subject to automatic enrollment at a three percent (3%) deferral election while legacy Quintiles Participants hired after January 1, 2015 will remain subject to automatic enrollment at a six percent (6%) deferral election unless changed. For other legacy Participants hired prior to the respective automatic enrollment effective dates, participation in the Plan is voluntary, and you may enroll at any time after becoming eligible. (Note: Participation in discretionary profit sharing contributions from the company is automatic for eligible Participants unless you opt out.)