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Web Site Terms of Use Agreement

Last Updated: September 2025

Thank you for visiting the Web Site (the “Site”) of PTC Therapeutics, Inc. and subsidiaries (the “Company”). The Company grants you the right to use this Site subject to the terms and conditions of use set forth below (this “Terms of Use Agreement”).

IMPORTANT NOTICE: All information provided on this Site is intended solely for general informational and educational purposes and does not constitute professional advice or a substitute for consultation with qualified healthcare professionals. This Site may include information about medical conditions and their treatment; however, PTC Therapeutics makes no guarantees, representations, or warranties, express or implied, regarding the accuracy, completeness, reliability, or suitability of such information for any purpose. Users acknowledge and agree that reliance on any information provided on this Site is solely at their own risk. PTC Therapeutics expressly disclaims all liability for any reliance on the information provided herein. By accessing this Site, you acknowledge and agree that PTC Therapeutics assumes no responsibility for any errors, omissions, inaccuracies, or typographical mistakes in the content and shall not be liable for any damages, direct or indirect, arising from the use or inability to use this Site. Users are strongly encouraged to consult with appropriate professionals before making any decisions or taking any actions based on the information contained herein.

PTC Therapeutics further makes no representation or warranty that the materials on this Site are appropriate or available for use outside the United States of America. Users who choose to access this Site from other locations do so on their own initiative and are entirely responsible for ensuring compliance with all applicable local laws, regulations, and restrictions. PTC Therapeutics expressly disclaims any liability for any use of this Site in jurisdictions where its content may be considered unlawful or otherwise restricted.

This Site may contain information on worldwide products and services, not all of which are available in every location. A reference to a product or service on this Site does not imply that such product or service is or will be available in your location. The products referred to on this Site may be subject to different regulatory requirements depending on the country of use. Consequently, visitors may be notified that certain sections of this Site are intended only for certain kinds of expert users or only for audiences in certain countries. You should not construe anything on this Site as a promotion or advertisement for any product or for the use of any product that is not authorized by the laws and regulations of your country of residence.

ACCEPTANCE: Please read and review this Terms of Use Agreement carefully before accessing or using this Site. Your access to and use of this Site are governed by these Terms and Conditions, all applicable laws, and the Privacy Statement. The Privacy Statement is hereby incorporated into this Terms of Use Agreement as if fully set forth herein. By accessing, browsing, or otherwise using this Site, you hereby acknowledge and agree, without limitation or qualification, to be bound by these Terms and Conditions. Furthermore, you acknowledge that any prior agreements or understandings between you and Company, concerning the use of this Site are hereby superseded and rendered null and void. If you do not agree to this Terms of Use Agreement, you may not access or use this Site. Your access to this Site for the limited and exclusive purpose of reviewing this Terms of Use Agreement (including the Privacy Statement) does not constitute your acceptance unless you make any further use of the Site.

Disclaimer of Warranty: All information on this Site is provided “AS IS” without any representations or warranties of any kind whether express or implied, including, but not limited to, the implied warranties of merchantability, fitness for a particular purpose,  non-infringement, or accuracy. The Company and its affiliates shall use reasonable care to ensure that the information provided on this Site is accurate and current at the time it is published; however, the Company makes no representations, warranties, or guarantees as to the accuracy, completeness, or timeliness of such information. Furthermore, the Company expressly disclaims any obligation or liability to update or revise the information provided on this Site. In addition, the Company does not accept any liability, howsoever arising, for the accuracy, completeness, use of, or reliance on the information contained on this Site. The information may be changed by the Company at any time. The Company expressly disclaims any and all liability, whether arising in contract, tort, negligence, or otherwise, for the accuracy, completeness, use, or reliance upon the information contained on this Site. Users acknowledge and agree that any reliance on such information is undertaken at their own risk. The Company reserves the right to modify, alter, or remove the information on this Site at any time without prior notice and shall not be held liable for any consequences arising from such changes.

Historical Information: Some information on this Site may be historical. All such historical information should be interpreted as relating to events and circumstances as they existed on the date of the original publication or recording of the respective documents or presentations. No content or information provided on this Site shall be construed as an invitation, offer, or solicitation to engage in any investment or transaction involving the securities of the Company. Furthermore, the Company expressly disclaims any intention or obligation to enter into any contractual relationship with any user of this Site through the provision of such content.

The US “Safe Harbor” statement under The Private Securities Litigation Reform Act of 1995: Statements in the documents or information appearing anywhere in this Site or linked to from this Site regarding the Company’ business which are not historical facts, are “forward-looking statements” that involve risks and uncertainties including, but not limited to, risks associated with the inherent uncertainty of pharmaceutical research, product development and commercialization, the impact of competitive products, patents and other risks and uncertainties, detailed from time to time in periodic reports including the Company’s most recent Annual Report on Form 10-K and the Company’s other filings with the Securities and Exchange Commission (SEC) available at www.sec.gov.

No Professional Medical Advice: This Site may contain general information about medical conditions, treatments, and references to the Company’s products or product candidates. This information is provided strictly for informational purposes, is not comprehensive, and must not be construed as a substitute for professional advice from a qualified healthcare provider.  You are advised to consult a qualified healthcare provider for any health concerns, suspected medical conditions, or healthcare-related inquiries. Under no circumstances should you disregard professional medical advice or delay seeking it based on information obtained from this Site.

Site Content:All text, graphics, photographs, trademarks, logos, visual interfaces, artwork, computer code, and any other content available on this Site are the exclusive property of the Company or its licensors and are protected by applicable copyright, trademark, patent, trade dress, and other intellectual property laws. Any unauthorized reproduction, modification, publication, distribution, transmission, public display, or use of the materials, in whole or in part, is strictly prohibited. Users are expressly prohibited from copying, distributing, altering, transmitting, reusing, reposting, or otherwise utilizing any content from this Site for public or commercial purposes—including but not limited to text, images, audio, or video—without the prior explicit written consent of the Company. Any unauthorized use may result in legal action.

Changes to Our Site: Without prejudice to your rights under applicable law, we reserve the right to update this Site without prior notice to reflect technological advancements, legal and regulatory changes and good business practices by posting such changes on the Site. However, please note that any of the content on our Site may be out of date at any given time, and we are under no obligation to update it. We do not guarantee that our Site, or any content on it, will be free from errors or omissions.

Third Party Sites and Services: This Site may include links to sites owned or operated by third parties. These linked sites are not under the Company’s control, and the Company is not responsible for the content found on any linked sites. The presence of such links does not imply endorsement of the material on linked sites, and the Company disclaims all liability related to your access to these sites. Links are provided solely for user convenience. Users access Linked Services at their own risk and subject to the privacy statements, terms and conditions of use and other legal provisions applicable to the Linked Services.

Viruses: We do not guarantee that our Site will be free from bugs or viruses. You are responsible for configuring your information technology, computer programs and platform in order to access our Site. You should use your own virus protection software. You must not misuse our Site by knowingly introducing viruses, trojans, worms, logic bombs or other material that is malicious or technologically harmful. You must not attempt to gain unauthorized access to our Site, the server on which our Site is stored, or any server, computer or database connected to our Site. You must not attack our Site via a denial-of-service attack or a distributed denial-of-service attack. We will report any such breach to the relevant law enforcement authorities, and we will cooperate with those authorities by disclosing your identity to them. In the event of such a breach, your right to use our Site will cease immediately.

Privacy and Data Protection: Please make sure that you carefully read our Privacy Statement and our Cookie Statement that are incorporated into and made a part of these Terms, to learn about the information that PTC collects through the Services and how we process it.

Non confidential information: Subject to our Privacy Statement any communication or information that you send to PTC through the internet or post on this Site by electronic mail or otherwise, such as any questions, comments and suggestions, is and will be deemed to be non-confidential and PTC shall have no obligation of any kind with respect to such communication or information.  PTC will be free to use any ideas, concepts, know-how or techniques contained in such communication for any purpose whatsoever, including but not limited to, developing, manufacturing and marketing products.

If you do not want the Company to use or disclose your information as described in this Terms of Use Agreement, you can (1) choose not to provide personal information via any channel of communication with the Company; (2) set your browser preferences and use web tools available to block the cookies sent in connection with your use of the Site; (3) follow the instructions to unsubscribe from PTC’s services included on the Site and the communications sent to you; or (4) email a request to remove or update the personal information that you have provided to PTC from its systems at dataprivacy@ptcbio.com

Violations of this Terms of Use Agreement: Failure to abide by this Terms of Use Agreement is a material breach of this Terms of Use Agreement for which the Company may pursue all rights and remedies it has pursuant to this Terms of Use Agreement, and any other rights and remedies it may have at law or in equity. Specifically, you agree that the Company may, in its sole discretion and without prior notice, terminate your access to this Site for violations of this Terms of Use Agreement or other agreements or guidelines which may be associated with your use of this Site.

Indemnity: You agree to defend, indemnify, and hold the Company, its officers, directors, partners, employees, agents, licensors, and suppliers, harmless from and against any claims, actions or demands, liabilities and settlements including without limitation, reasonable legal and accounting fees, resulting from, or alleged to result from, your violation of this Terms of Use Agreement.

IMPORTANT DAMAGE DISCLAIMERS AND LIMITATIONS: THE COMPANY SPECIFICALLY DISCLAIMS ANY LIABILITY, WHETHER BASED IN CONTRACT, TORT, STRICT LIABILITY OR OTHERWISE, FOR ANY DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, OR SPECIAL DAMAGES ARISING OUT OF OR IN ANY WAY CONNECTED WITH ACCESS TO OR USE OF THIS SITE, EVEN IF THE COMPANY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, INCLUDING BUT NOT LIMITED TO RELIANCE BY ANY PARTY ON ANY CONTENT OBTAINED THROUGH THE USE OF THIS SITE, OR THAT ARISES IN CONNECTION WITH MISTAKES OR OMISSIONS IN, OR DELAYS IN TRANSMISSION OF, INFORMATION TO OR FROM THE USER, INTERRUPTIONS IN TELECOMMUNICATIONS CONNECTIONS TO THIS SITE, OR VIRUSES OR OTHER HARMFUL COMPONENTS IN THIS SITE, WHETHER CAUSED IN WHOLE OR IN PART BY NEGLIGENCE, ACTS OF GOD, TELECOMMUNICATIONS FAILURE, THEFT OR DESTRUCTION OF, OR UNAUTHORIZED ACCESS TO THIS SITE, OR RELATED INFORMATION OR PROGRAMS: Because some countries and states do not allow the exclusion or limitation of liability for consequential or incidental damages, all disclaimers, limitations and other terms of this paragraph shall apply to the greatest extent permitted by law.

Void Where Prohibited: This Site and its content are intended to comply with the laws and regulations in the U.S. Although the information on this Site is accessible to users outside of the U.S., the information pertaining to the Company’s products is intended for use only by residents of the U.S. Other countries may have laws, regulatory requirements, and medical practices that differ from those in the U.S. This Site links to other sites produced by the Company’s various operating divisions and subsidiaries, some of which are outside the U.S. Those sites may have information that is appropriate only to that particular originating country. The Company reserves the right to limit provision of its products or services to any person, geographic region, or jurisdiction and/or to limit the quantities or any products or services it provides. Any offer for any product or service made on this Site is void where prohibited.

Governing Laws: This Terms of Use Agreement and your use of the Site shall be governed by the laws of the United States of America and the State of New Jersey without regard to its conflicts of laws principles. Any legal action or proceeding related to this Site shall be brought exclusively in a federal or state court of competent jurisdiction sitting in New Jersey.

Additional Terms: Certain features of the Services, such as mobile applications (“Apps”), promotions, offers and research studies, may be subject to additional terms and conditions (“Additional Terms”) presented in conjunction with them. PTC may present Additional Terms to you through the Services or offline. Regardless of how they are presented to you, PTC requires that you agree to Additional Terms before using these features of the Services. Unless otherwise specified in Additional Terms, all Additional Terms are incorporated into these Terms. If you do not agree to Additional Terms, you will not have access to the Services to which they relate. These Terms and Additional Terms apply equally. In the event of any inconsistency between an Additional Term and any provision within these Terms, the Additional Term shall prevail solely with respect to the Service(s) to which the Additional Terms pertain.

Our Commitment to Accessibility: In the event of difficulty using our web pages, applications or device-based mobile applications, contact us for assistance or to obtain alternative formats.

Miscellaneous: If any provision of this Agreement is held to be unlawful, void, or unenforceable, then such provision shall be severable without affecting the enforceability of all remaining provisions. The Company reserves the right to alter or delete materials from this Site at any time at its discretion.