Sharplink, Inc.

None of the Company’s directors or officers adopted, modified orterminated a Rule 10b5-1 trading arrangement or a non-Rule 10b5-1 trading arrangement, as such terms are defined under Item 408(a) of Regulation S-K, during the Company’s fiscal quarter ended March 31, 2026.

Sharplink, Inc. Disclosure Channels to Disseminate Information

Sharplink’s investors and others should note that we announce material information to the public about our Company and its ETH updates, ETH Dashboard and other matters through a variety of means, including the Company’s website, press releases, SEC filings and social media, in order to achieve broad, non-exclusionary distribution of information to the public. We encourage our investors and others to review the information we make public in the locations below as such information could be deemed to be material information. Please note that this list may be updated from time to time.

For more information on Sharplink, Inc. and its ETH updates, ETH Dashboard, and other matters, please visit: https://www.sharplink.com/.

For more information for the Company’s investors, including press releases, SEC filings, corporate presentations, events, please visit: https://www.sharplink.com/investors. Investors and other interested parties can subscribe to our press releases and SEC filings at the aforementioned address.

For additional information, please follow Sharplink social media accounts at:

X account (formerly Twitter): @Sharplink or https://x.com/sharplink

LinkedIn: https://www.linkedin.com/company/sharplink-sbet

Investors and other interested parties can also subscribe to our social media accounts at the aforementioned addresses.

Chief Accounting Officer

On May 6, 2026, the Board appointed Dana Perez, 48, the former Senior Vice President of Accounting as the Chief Accounting Officer, effective March 1, 2026. Ms. Perez has served as the Company’s Senior Vice President of Accounting since September 15, 2025.

In connection with the appointment, Ms. Perez entered into an employment letter with the Company providing for: (i) an annual base salary of $350,000; (ii) a short-term incentive opportunity equal to 30% of her base salary and a maximum opportunity of 80%; and (iii) a 2026 long-term incentive opportunity of $150,000. If the Company terminates her employment without cause, she will receive continued base salary for nine months, subject to her execution of a release of claims in favor of the Company. Upon a change in control, all unvested time-based equity awards will vest in full, and all unvested performance-based equity awards will vest based on actual achievement of the applicable performance goals measured through the date immediately prior to the change in control (or as close to that date as administratively practicable). Ms. Perez will also be eligible to participate in the standard benefit plans generally available to similarly situated employees and has reaffirmed her obligations under her existing Confidentiality and Proprietary Rights Agreement.

The foregoing description is qualified in its entirety by reference to the full text of the employment letter, which will be filed in the Company’s Form 10-Q for the quarter ended June 30, 2026.

Ms. Perez is a Florida-licensed Certified Public Accountant with over 25 years of experience in SEC compliance and reporting, audit management, technical accounting, and financial statement preparation. Since 2020, she has served as the principal of Eschenburg Perez CPA, LLC, a financial consulting firm providing fractional CFO and controller services to public and private companies. Concurrently, she has served as Chief Financial Officer of Jupiter Neurosciences, Inc. (June 2021 to December 2022), MGO Global, Inc. (January 2024 to February 2025), and as Interim Chief Financial Officer of Capstone Companies, Inc. (January 2023 to present). From 2013 to 2021, Ms. Perez served as Chief Financial Officer of Adopt-A-Family of the Palm Beaches, Inc. Earlier in her career, she served as Manager, National Office of Risk Management, and Audit Manager at RSM US LLP. Ms. Perez holds a Master of Science in Accountancy and a Bachelor of Science in Accountancy from the University of North Carolina at Wilmington and is a member of the American Institute of Certified Public Accountants.

There are no family relationships between Ms. Perez and any director or other executive officer, nor are there any transactions to which the Company was or is a participant and in which Ms. Perez has a material interest subject to disclosure under Item 404(a) of Regulation S-K. There are no arrangements or understandings between Ms. Perez and any other persons pursuant to which she was selected as an officer.