Privacy Policy

This Privacy Policy governs the collection and use of personal information by Stealth BioTherapeutics Inc. (“Stealth”). Unless specified otherwise, the words “we” “our” or “us” in this Privacy Policy refer to and mean Stealth BioTherapeutics Inc.

At Stealth, we understand that various laws and regulations govern data protection and we respect the fact that protecting your privacy is important to you. We also recognize that health and medical information is particularly sensitive. We are committed to protecting and respecting your privacy and that’s why we want to explain our Internet privacy policy to you in this statement (“Privacy Policy”). Please review this Privacy Policy to learn about how Stealth collects, uses, shares and protects information and your legal rights in relation to your personal information. We are committed to abiding by this Privacy Policy, as well as the requirements of applicable laws, in the operation of our business.

First and foremost, the Stealth website only collects your personal information if you choose to give it to us. While we retain the right to share your personal information with our corporate affiliates and with outside companies or agents working on our behalf to help fulfill our business obligations, we do not share any of your personal information with third-parties for their own use unless you explicitly give us permission to do so.

This Privacy Policy applies only to personal information collected online from the Stealth website. By accessing or browsing our website, you confirm that you have read, understood and agree to this Privacy Policy in its entirety. If you do not agree with the practices described in this Privacy Policy, you should not use our website.

Information Collected – Information You Give Us

On the Stealth website, we collect only your personal information (such as your name, address, telephone number or e-mail address) when you choose to submit it to us, and we use it only for those purposes which you have approved. For example, you may choose to register to receive additional product information or information about a disease state that interests you, in which case your personal information will be used only for that purpose. In some cases, we remove personal identifiers from data and maintain it in aggregate form. We may combine this data with other information to produce anonymous, aggregated statistical information helpful to us in improving our products and services.

Automatically Collected Information

We automatically collect certain types of information whenever you interact with us on the Stealth website and in some e-mails we may send each other. This can include your preferences (like, language and the region you are in). We may also collect information about your visits to the Stealth website, such as, the length of visits to certain pages and page interaction information. Automatic technologies we use may include web server logs and IP addresses, cookies and web beacons.

Web Server Logs and IP Addresses: An IP address is a number assigned to your computer whenever you access the Internet that allows computers and servers to recognize and communicate with each other. Stealth may collect IP addresses to conduct system administration and report aggregate information to affiliates, business partners, service providers and/or vendors to conduct website and Application analysis and performance reviews.

Cookies: A cookie is a piece of information that is placed on your computer when you access certain websites and Applications. The cookie uniquely identifies your browser to the server. Cookies perform many functions, such as allowing you to navigate between pages efficiently, remembering your preferences, and generally improving the user experience. They can also help to ensure that advertising that you see online is more relevant to you and your interests. They also help in making your web experience better and in conducting website and Application analysis and performance reviews.  Most web browsers are set up to accept cookies, although you can reset your browser to refuse all cookies or to indicate when a cookie is being sent. Note, however, that some portions of our website may not work properly if you refuse cookies. You can read more about cookies at:

Your use of our website and your acknowledgement of our cookie policy indicates your consent to the cookies described in this policy. Please see “How you can control cookies” below for more information on how to withdraw your consent at any time.

Web Beacons: On certain web pages or e-mails, Stealth may utilize a common Internet technology called a “web beacon” (also known as an “action tag” or “clear GIF technology”). Web beacons help analyze the effectiveness of websites by measuring, for example, the number of visitors to a site or how many visitors clicked on key elements of a site.

Web beacons, cookies and other tracking technologies do not automatically obtain personal information about you. Only if you voluntarily submit personal information, such as by registering or sending e-mails, can these automatic tracking technologies be used to provide further information about your use of the websites to improve their usefulness to you.

Your Choices

You have certain options regarding your use of the Stealth website. Stealth may require you to provide certain personal information in order for you to receive additional product information or information about a disease state. You could decide not to submit any personal information at all by not entering it into any forms or data fields and not using any available personalized services. If you opt-in for particular services or communications, such as an e-newsletter, you will be able to unsubscribe at any time by following the instructions included in each communication. If you decide to unsubscribe from a service or communication, we will work to remove your information promptly, although we may require additional information before we can process your request.

As described above, if you wish to prevent cookies from tracking you anonymously as you navigate our website, you can reset your browser to refuse all cookies or to indicate when a cookie is being sent. Note, however, that some portions of our website may not work properly if you refuse cookies.

Use of Personal Information

We may share your personal information with any Stealth company, including subsidiaries and holding companies (if applicable), in order to enable you to request our services, understand your preferences, send you information about products and services that may be of interest to you and conduct the other activities described in this Privacy Policy.

Stealth and/or the service providers, vendors and other third parties we hire to perform services on our behalf may use any personal information you choose to give us to comply with your requests and as otherwise disclosed to you in this Privacy Policy or on the web page where you submit your information to us. We may refer to this information to better understand your needs and how we can improve our products and services. For example, we may engage service providers to provide market research, marketing (including competitions), advertising, communications, training, IT, hosting and other infrastructure and data cleansing and processing services. In the course of providing such services, these service providers may have access to your personal information. However, the service providers that have access to your personal information are contractually bound only to use personal information to perform the services that we hire them to provide. We will always use our best efforts to ensure that all the service providers we work with will keep your personal information secure. We also use depersonalized, aggregated information collected from our websites to help us understand trends and user needs. For example, we may analyze the gender or age of visitors to the website about a particular medication or disease state, and we may use that analysis of aggregate data internally or share it with others.

Data Sharing and Transfer

Stealth may share personal information about you with various outside companies or service providers or vendors working on our behalf to help further our business requirements, such as providing services, sending marketing communications about our products, services and offers, and doing technological maintenance. We may also share personal information with our company’s affiliates.

We may also disclose personal information for these purposes:

  • In connection with the sale, assignment or other transfer of the business of the site to which the data relates;
  • To respond to requests of government or law enforcement agencies or where required or permitted by applicable laws, court orders, or government regulations; or
  • When needed for corporate audits or to investigate or respond to a complaint or security threat.

No Third-Party Direct Marketing Use: Stealth will not sell or otherwise transfer the personal information you provide to us at our website to any third parties for their own direct marketing use unless we provide clear notice to you and obtain your explicit consent for your data to be shared in this manner.

E-mail a Friend or Colleague: You may choose to send a link or a message to a friend or colleague referring them to the Stealth website. The e-mail addresses you may provide for a friend will be used to send your friend information on your behalf and will not be collected or used by Stealth or other third parties for additional purposes.

Note to Users of Business or Professional Websites: If you have a business or professional relationship with Stealth, we may use information you submit on our site to fulfill your requests and develop our business relationship with you and the entities you represent. We may also share such information with third parties acting on our behalf.

Links to Other Sites

Links to other websites not controlled by Stealth (non-Stealth) are provided for convenience only. By providing these links, we are not endorsing or agreeing with content contained at any of the linked sites. Furthermore, the content of the linked websites is not part of the Stealth Site. We try to choose sites that are relevant. However, with the rapidly changing nature of some sites, we cannot express any opinion on their content and cannot guarantee their quality. We have no control over the non-Stealth linked sites and their policies. The privacy policy presented here DOES NOT APPLY to any non-Stealth websites. You should contact those sites directly for information on their privacy policies, confidentiality agreements, and data collection/distribution procedures.

Stealth will not be liable for any loss or damage resulting from the use or misuse of the information in this website or any linked non-Stealth sites, and all users who access the Stealth website or non-Stealth linked sites agree to do so at their own risk. Neither Stealth nor any other party involved in creating, producing, or delivering the Stealth website or any linked non-Stealth site from or to this site shall be liable in any manner whatsoever for any damages of any nature arising out of your access to this site or any linked non-Stealth site from this site, or any errors or omissions in their content. Please note that linked non-Stealth sites may use Cookies. Stealth cannot control the use of cookies by these linked non-Stealth sites. We also want you to know that when you link from the Stealth website to another website, that site may have the ability to recognize that you have come from a Stealth website. If you do not want any other websites to know that you have been on this website, we recommend that you do not use the links provided in our website.

Your Rights

You have the following rights with respect to the personal information that we hold about you.

Your Right to Access the Information We Hold About You

You can request access to the information we hold about you by contacting us using the contact details set out below. Our file of your information will usually be made available to you within 30 days, although occasionally we may not be able to give you access to the personal information we hold about you (for example, we may not be able to give you access if it would unreasonably affect someone else’s privacy or if giving you access poses a serious threat to someone’s life, health or safety). Please note that we may apply an administrative charge for providing access to your information in certain circumstances. Any such charge will be reasonable, and we will advise you of the charge and obtain your consent before providing you with access to your personal information. Please note that if you request a copy of your data using electronic means (such as email), then we will provide a copy of your information in electronic form unless you ask us to do otherwise.

Your Right to Have Your Information Corrected or Deleted

If you would like to update the information we hold on you, would like us to delete your information, or if you would like us to ask the third parties to whom we transfer your data within the scope of this Privacy Policy to update or delete your information, please send your request to and we will take action on it promptly.

Your Right to Object to Us Processing Your Personal Information

You have the right to object to us processing your personal information, even where that processing is necessary for our legitimate interests (for example, where the processing is necessary for the legitimate commercial objectives we pursue in the course of our business), including the profiling we undertake to send you personalized recommendations and similar content. You also have the right to object to any results of a processing activity that prejudice your rights and that are conducted exclusively through automated systems.

You also have the right to ask us to stop processing your personal information for direct marketing purposes, including any profiling we undertake for the purposes of direct marketing. We will in any case only send you marketing communications if you have previously agreed to this, but if you change your mind you can easily unsubscribe from our marketing communications at any time by following the instructions included in these marketing communications.

Please note that, if you have consented to receive offers from our partners, our partners are responsible for taking account of your rights, including your right to opt-out of receiving offers from them.

Your Right to Have Your Personal Information Transmitted to Another Organization

Where we hold personal information about you with your consent or for the performance of a contract with you, you also have the right to ask us to provide you with the personal information we hold about you in a structured, commonly used and machine-readable format and, where technically feasible, to transmit that personal information to another organization.

Changes to this Privacy Policy

We may update this Privacy Policy from time to time in response to changing legal, regulatory or operational requirements. We will notify you of any such changes (including when they will take effect). Your continued use of our website and / or services after any such updates take effect will constitute acceptance of those changes.

How to Contact Stealth BioTherapeutics

If you have any questions about Stealth’s website Privacy Policy or the information practices of our website, you may contact us as follows:

Legal Department
Stealth BioTherapeutics Inc.
123 Highland Avenue
Suite 201

Needham, MA 02494
(617) 600-6888