Leading the Charge in Sustainable Cryptocurrency

Mr. Vaiopoulos is a Partner, CFO and Co-Founder of Stack Capital Group Inc., a TSX listed issuer that invests in some of the most sought after innovative private late-stage tech companies. Previously, he was the CFO and Interim CEO of Hut 8 Mining, one of the earliest and largest publicly-listed bitcoin miners in the world. He also worked as the CFO of UGE International Ltd., a solar developer based in New York City. He began his career at KPMG in both Audit and Deal Advisory. Mr. Vaiopoulos will focus on identifying and evaluating acquisition and growth opportunities. Mr. Vaipoulos assumes the role of Chairperson from Brittany Kaiser. Ms. Kaiser, along with Heather Cox, Jessica Billingsley and Dan Tolhurst remain on the Board as directors.

Rob is an experienced executive who most recently was the CFO of Riot Blockchain and has consulted for other publicly traded blockchain mining companies. He has over 25 years of experience in the financial services industry including serving as the Managing Director and Head of Metals & Mining at Cantor Fitzgerald where he was recognized by Bloomberg as the Best Precious Metals Analyst in Q1 2016. His career achievements include rescuing a NASDAQ-listed company from bankruptcy despite regulatory and industry headwinds. Mr. Chang is frequently quoted and a regular guest of several media outlets including Bloomberg, Reuters, CNBC, and The Wall Street Journal. Mr. Chang also previously served as Director of Research and Portfolio Manager at an investment firm that managed $3 billion in assets. He currently sits on the boards of Ur-Energy and Fission Uranium. Mr. Chang completed his MBA at the University of Toronto’s Rotman School of Management.

Heather Cox was most recently the Chief Digital Health and Analytics Officer for Humana. In this role, Heather was accountable for building Humana’s digital care delivery operations and leading enterprise advanced analytics, including the application of Artificial Intelligence at scale in healthcare.

Prior to joining Humana, Heather served as Chief Technology and Digital Officer at USAA, where she led the teams responsible for designing and building personalized and digitally enabled end-to-end experiences for USAA members. Heather has also designed, built, and served as CEO of Citi FinTech at Citigroup, building a fintech start-up that allowed the company to harness the innovation in the global fintech ecosystem and to adapt to a future dominated by mobile technology. Before that she, headed Card Operations for Capital One.

Heather was named by American Banker magazine as the #3 Woman to Watch nationally in banking by American Banker Magazine in October 2017. She was also named to American Banker’s Women to Watch list in 2011, 2013 and 2016. In 2015, she was named one of the 10 Most Innovative CEOs in Banking by Bank Innovation, as well as Digital Banker of the Year by American Banker. In 2018, Heather was appointed to the NRG Energy Board of Directors and was elected to the Atlantic Union Bankshares Board of Directors in August 2022.

Brittany Kaiser is an entrepreneur, activist, and globally recognized expert in data protection and privacy. As Co-Founder of the Own Your Data Foundation, she teaches digital literacy education and training to governments, corporates, and families. She is also a Co-Founder of the Digital Asset Trade Association (DATA) for legal advocacy where she does legislative drafting and lobbying on privacy and blockchain laws. Ms. Kaiser sits on the board of many companies across industries, working on data ethics, compliance, and privacy protocols. Ms. Kaiser is also the author of Targeted published globally by Harper Collins, and she is the main subject of Netflix’s original documentary “The Great Hack”, nominated for an Emmy, BAFTA, and shortlisted for an Oscar. As a renowned thought leader and public speaker, Ms. Kaiser is represented by CAA and has spoken at prestigious events at the United Nations, the European and British Parliaments, the G20, and WebSummit, as well as guest lecturing at universities such as Harvard, Oxford, and Columbia.

Jessica is a seasoned executive and innovator with decades of experience in frontier technology. She is named on multiple patents including advancements in supply chain technology and anti-counterfeit solutions using blockchain and NFTs. Her experience includes leading successful public and private companies as CEO and serving on multiple boards of directors. Jessica possesses in-depth expertise in private and public capital markets and has successfully navigated complex transactions to drive growth and business transformation. She is also FINRA securities licensed.

Previously, as Founder,Chairman of the Board, and CEO of Akerna (Nasdaq: KERN), a Software as a Service ag-tech company, she successfully publicly listed, completed multiple accretive acquisitions, maintained market leadership for over a decade, and exited via strategic acquisition. Jessica currently serves on the boards of Gryphon Digital Mining, Nu Energy (NASDAQ:NXU), OARO, and the Young President’s Organization (YPO) Entrepreneurship Network Board.

She has been recognized with numerous awards, including Inc. Top 100 Female Founder and Fortune’s Most Promising Woman Entrepreneur. Her insights and thought leadership have been featured in numerous prominent media outlets, in addition to her active contribution to Entrepreneur and Rolling Stone publications.

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Mr. Tolhurst has founded, led, and invested in innovative companies across multiple sectors for nearly two decades. He was the Co-Founder, President and a Board Member of Gryphon Digital Mining, Inc., from its founding in October of 2020 through the closing of its go public transaction in February 2024. From June 2018 to January 2020, he led Netflix Inc.'s Content Strategy & Analysis team in EMEA. He also held positions as a Director and Senior Manager of Corporate Strategy and Business Development at The Walt Disney Company between 2013 and 2018. Prior to that, he held positions at Booz & Company, a management consulting firm, and the Bank of Montreal Financial Group, a Canadian bank. Mr. Tolhurst holds an MBA and a Bachelor of Arts, Honors Business Administration from Ivey Business School and a Juris Doctor degree from Osgoode Hall Law School at York University. The Board selected Mr. Tolhurst based on his familiarity with the Company’s industry and business, as well as his extensive experience in strategic planning, capital raising, and investment management.

Dan Grigorin is an industry veteran with extensive experience across investment banking, private equity, private credit, and digital assets. Mr. Grigorin is a portfolio manager at Anchor Labs, Inc. (“Anchor”), where he has worked since October 2022. Prior to Anchor, he was a credit director at New York Digital Investment Group LLC from February 2022 to September 2022, senior associate at WhiteHawk Capital Partners from June 2020 to February 2022, associate at Great American Capital Partners from August 2019 to June 2020 and associate at at ING Capital LLC April 2018 to August 2019. Throughout his career, Mr. Grigorin has served as a trusted advisor to both private and public companies, guiding them through capital raises, strategic partnerships, and operational optimization. Mr. Grigorin has a Bachelor of Science in Business from the Kelley School of Business at Indiana University.