Ultragenyx Cookie Policy

Last updated: 16Jan2026

This Cookie Policy applies to the Ultragenyx website (the “Website”). Please read this Cookie Policy carefully and feel free to contact us if you have any questions using the contact information contained either at the end of this Cookie Policy, or in our Privacy Policy. For more information on our privacy practices, see our Privacy Policy.

What are cookies and how do we use them?

A cookie is a small text file that a website saves on your computer or mobile device when you visit some websites. We and third parties use cookies and other tracking technologies to track the total number of visitors to our Website, the number of visitors to each page of our Website, the sequence or duration of visitors to each page, IP addresses, and the domain names of our users’ Internet Services Providers. We analyze this information so we can better understand how users use our Website, find ways to improve your experience, and as otherwise described in our Privacy Policy.

Cookies used on the Website

A full list of the cookies that we use on the Website can be found below.

Cookie Type Legal Basis Purpose of Cookie
Strictly necessary cookies Legitimate interest These cookies are necessary for the website to function and cannot be switched off in our systems. They are usually only set in response to actions made by you which amount to a request for services, such as setting your privacy preferences, logging in or filling in forms. You can set your browser to block or alert you about these cookies, but some parts of the site will not then work. These cookies do not store any personally identifiable information.
Functional cookies Consent These cookies enable the website to provide enhanced functionality and personalisation. They may be set by us or by third party providers whose services we have added to our pages. If you do not allow these cookies then some or all of these services may not function properly.
Marketing (targeting) cookies Consent These cookies may be set through our site by our advertising partners. They may be used by those companies to build a profile of your interests and show you relevant adverts on other sites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.
Performance cookies Consent These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.

The specific names of cookies may vary to the extent that our services are improved and updated. However, such cookies are usually restricted to the categories mentioned above.

What kind of data do we collect by our use of Cookies?

With cookies, we collect and process the following types of data:

  • End user device data (mobile phone, tablet laptop)
  • Member’s identification data (if the individual has registered an account)
  • User’s IP address
  • Information on user’s browser

How to control Cookies

For more information about your ability to control and/or delete cookies, see www.aboutcookies.org. Most browsers also allow you to adjust settings to prevent cookies from being placed. If you do this, however, you may have to manually adjust some preferences every time you visit a site and some services and functionalities on our Website may not work.
Find out how to manage cookies on popular browsers:

To find out information relating to other browsers, visit the browser developer’s website.

If you would like to opt out of your data being used by Google Analytics, please visit https://tools.google.com/dlpage/gaoptout.

Consent Provision and Management for the use of Cookies

By entering the Website’s homepage, a brief informative note (cookie banner) regarding our use of cookies, located centrally and referring to Settings, will appear via a pop-up window. In this notice you will find important information about the description and purposes of the different cookies categories. You will have the option to approve the use of all non-strictly necessary cookies (functional, marketing and performance cookies) or reject all non-strictly necessary cookies (functional, marketing and performance cookies). The strictly necessary cookies do not require user consent and are always enabled.

In addition, there is the option “Cookies Settings”, where you can find more detailed information about the cookies we use and set / change your preferences regarding the use of cookies.

Specifically:

  • By selecting “ACCEPT” you recognize the use of all strictly necessary cookies and consent to the use of all the above unnecessary cookies.
  • By selecting “DECLINE” you recognize the use of strictly necessary cookies and reject any other cookie category.
  • By selecting “SETTINGS” you can get in-depth information on cookies and the choice to set (or modify) the preferences of the use of cookies (excluding the strictly necessary cookies, which are always activated).

We use the strictly necessary cookies and, under the precondition of your former free and clear consent, performance cookies. Your consent can be provided via the pop-up window and can be recalled or modified at any time, without retroactive effect, through the “SETTINGS” option, by following the relevant hyperlink.

Additionally, we would like to remind you that as data subjects you have the right to access, correct, delete, limit the processing, load, deny, object to the automated choice-making, the right to data portability, and the right to appeal to the responsible Supervising Authorities.

Contact Us

We can be contacted by email at [email protected]. For more information on our privacy practices, see our Privacy Policy.