2026 Benefits Open Enrollment
Access and Enroll through Workday
​To support you through the process, we’ve provided helpful resources below to guide your decisions and ensure a smooth enrollment experience.
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Important Reminder: If you do not take action during Open Enrollment, your current benefit elections will automatically carry over into the new plan year—with one exception: You must actively re-enroll in any Flexible Spending Account (FSA) or Health Savings Account (HSA) each year, as these elections do not roll over automatically.
Learn About 2026 Benefits Changes
Otsuka offers a variety of resources to help you stay informed about updates to your 2026 benefits and explore new plan offerings. You’ll also find tools designed to guide you through the decision-making process and assist with any changes you may wish to make. Available resources include:
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​​​Open Enrollment eGuide​
The Open Enrollment eGuide is an interactive resource that provides detailed information on all benefits available to you in 2026. It’s designed to help you easily explore benefit options, understand what’s changing, and make informed decisions for you and your family. Be sure to review the “What’s Changing in 2026” section for a summary of key updates.
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If you are joining from Visterra, please refer to the Benefits eGuide provided to you via email on November 20th.
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Medical Plan Evaluator
Not sure which medical plan is right for you and your family? The Medical Plan Evaluator can help. Just answer a few simple questions, and you'll receive a personalized recommendation based on your needs.​
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Compare Medical Plans & Learn About Health Savings Accounts
To help you choose the medical plan that best fits your needs, explore starting on page 13 for a side-by-side look at the options Otsuka offers. You’ll also find clear guidance on how a Health Savings Account (HSA) works—and how to make the most of it.
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2026 Holiday Schedule​
Otsuka offers up to 18 paid holidays each year, including a five-day Winter Holiday and Summer Fridays (available to non-field employees), providing time to relax, recharge, and connect with family and friends. Click here to view the 2026 Holiday Schedule.
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2026 Summary of Benefits Coverage
You can also review the 2026 documents here.