Hsiao-Wei Wang resigned as co-executive director and board member of the Ethereum Foundation on June 18, 2026, effective immediately. She is the second of the nonprofit's two co-executive directors to leave this year and the latest in a run of eight senior-level exits over the past five months.
Wang announced the decision in a post on X, citing a recent sabbatical. "After my sabbatical, I have decided to step down as co-executive director and board member of the Ethereum Foundation, effective today," she wrote. She has not announced a next role.
Wang joined the Ethereum Foundation's research team in 2017 and was named co-executive director in 2025. Over nearly nine years, she contributed to the Beacon Chain, which enabled Ethereum's move to proof-of-stake, The Merge, and the Shapella and Dencun hard forks. "Ethereum has always been bigger than any one role, any one organization, or any one moment," she wrote.
The EF has not named a successor for Wang or for Tomasz Stańczak, who departed in February 2026 as the first co-executive director to leave. Board member Bastian Aue has taken on a broader coordination role in the interim. The EF issued no official statement on Wang's resignation.
Wang's announcement came six days before the EF disclosed, on June 22–24, that it is cutting roughly 54 positions, about 20% of its workforce, and reducing its annual budget by 40%, per CoinDesk. The EF has not publicly connected her departure to that restructuring; her stated reasons were personal.
Wang is among eight senior figures to have left the EF over the past five months, a run of departures that has drawn community scrutiny of the organization's governance and strategic direction as Ethereum faces competition from rival blockchains.