Eight senior researchers and executives have departed the Ethereum Foundation (EF) in 2026, with five resignations concentrated in May alone. The exits span every layer of the Protocol Cluster — the unit responsible for base-layer research, hard-fork coordination, and validator economics — and in...
"Tim, Barnabé, and Alex shaped Protocol in ways that will outlast their time as cluster coordinators." — Ethereum Foundation, Protocol Cluster Updates: May 2026
Eight senior researchers and executives have departed the Ethereum Foundation (EF) in 2026, with five resignations concentrated in May alone. The exits span every layer of the Protocol Cluster — the unit responsible for base-layer research, hard-fork coordination, and validator economics — and include some of the most publicly recognizable names in Ethereum core development.
The departures follow a deliberate organizational restructuring initiated by Vitalik Buterin in January 2025, which repositioned the EF from a top-down roadmap owner to a narrower research-and-grants steward. Execution responsibility has shifted outward to independent client teams (Geth, Nethermind, Besu, Reth, Prysm, Lighthouse, Teku, Lodestar). Whether this transition constitutes healthy renewal or institutional erosion depends on how quickly the replacement leadership can maintain Ethereum's hard-fork cadence, currently targeting the Glamsterdam upgrade in Q3 2026.
The EF treasury stood at $970.2 million as of October 31, 2024. Annual spending runs approximately $100 million. The foundation has staked 70,000 ETH (roughly $147 million at current prices) to generate yield rather than liquidating holdings. ETH trades near $2,100 with a market capitalization of approximately $254 billion.
The following table summarizes the eight confirmed senior departures from the Ethereum Foundation in 2026:
| Name | Role | Tenure | Exit Date | Key Contributions | |------|------|--------|-----------|-------------------| | Tomasz Stańczak | Co-Executive Director | <1 year | Feb 28, 2026 | Leadership restructuring; former Nethermind CEO | | Josh Stark | Operations/Writing Lead | 7 years | March 2026 | Institutional documentation; multiple upgrade cycles | | Trent Van Epps | Ecosystem Coordinator | Multi-year | April 2026 | Protocol Guild organizer; developer funding | | Barnabé Monnot | Protocol Cluster Co-Lead | Multi-year | May 12, 2026 | Proposer-builder separation; MEV research | | Tim Beiko | Protocol Cluster Co-Lead | Multi-year | May 12, 2026 | All Core Devs coordination; hard-fork scheduling | | Alex Stokes | Protocol Cluster Co-Lead | Multi-year | May 2026 | Consensus-layer research; on sabbatical | | Carl Beek | Consensus Researcher | 7 years | May 29, 2026 | Beacon Chain design; KZG ceremony; PoS transition | | Julian Ma | Protocol R&D | ~4 years | May 18, 2026 | FOCIL (EIP-7805); censorship-resistance mechanisms |
Additional departure: Pablo Voorvaart, a senior solutions architect of four years responsible for Devcon and the Use Case Lab, also resigned in May to pursue entrepreneurship.
Tim Beiko was arguably the most publicly visible figure in Ethereum protocol development, coordinating the regular All Core Devs calls where core developers negotiated upgrade specifications. Barnabé Monnot's work on proposer-builder separation and validator economics informed key architectural decisions around MEV mitigation. Carl Beek's seven-year tenure traced back to early Beacon Chain design, making him one of the longest-serving consensus researchers.
Julian Ma co-authored FOCIL (Fork-Choice Inclusion Lists, EIP-7805), a censorship-resistance mechanism that had been slated for inclusion in the Glamsterdam upgrade before being moved to the subsequent Hegota fork.
The departures did not occur in a vacuum. In January 2025, Vitalik Buterin publicly announced a leadership overhaul of the Ethereum Foundation, stating: "The person deciding the new EF leadership team is me." The restructuring aimed to:
The foundation published a formal mandate in early 2026 stating it does not view itself as Ethereum's "owner" or central authority, but rather as "one of many stewards responsible for supporting the network's long-term health."
Tomasz Stańczak, recruited as co-executive director from Nethermind in 2025, departed after less than a year. He stated his time at the organization "would feel more and more like just staying around to pass the baton." The board appointed Bastian Aue as interim co-executive director. Hsiao-Wei Wang serves as the other co-executive director.
The EF's financial position provides context for the talent exodus.
Treasury: $970.2 million as of October 31, 2024 — comprising $788.7 million in cryptocurrency (81% in ETH) and $181.5 million in non-crypto holdings. More recent on-chain tracking by Arkham Intelligence shows approximately $270.9 million across 14 tracked addresses, including roughly 102,400 ETH.
Annual budget: Approximately $100 million per year. Historical spending: $105.4 million in 2022, $134.9 million in 2023.
Spending policy: The EF introduced its first formal treasury policy, capping annual spending at 15% of total assets with a target reduction to 5% by 2030. A 2.5-year operating buffer is maintained in fiat.
Staking shift: The EF completed its 70,000 ETH staking target by April 2026, generating an estimated $3.9 million to $5.4 million in annual yield. This reduces the need for periodic ETH sell-offs that had drawn community criticism.
Compensation gap: Salary data from Levels.fyi and Web3.career indicates EF engineering compensation ranges from $100,000 to $155,000 annually in the U.S. This places the EF below compensation packages offered by well-funded Layer 2 teams, AI-crypto hybrid projects, and venture-backed protocol startups. Multiple reports, including from Bankless, have cited compensation as a contributing factor in departures, though no departing researcher has publicly confirmed pay as their primary reason for leaving.
The EF's Protocol Cluster is responsible for coordinating Ethereum's base-layer upgrades. Two major hard forks are scheduled for 2026:
Glamsterdam (targeting Q3 2026): Originally slated for June, the upgrade has slipped to Q3. It includes up to 22 EIPs, with headline features including ePBS (enshrined proposer-builder separation), the EVM Object Format (EOF) — the most comprehensive EVM rewrite since launch — and a 200 million gas limit floor. The delay predates the May departures; the Base engineering team had warned that combining FOCIL with ePBS risked pushing the timeline beyond 2026. FOCIL was subsequently moved to Hegota.
Hegota (targeting H2 2026): Focuses on Verkle Trees for stateless clients and FOCIL for censorship resistance. Early prototypes are functional according to the May 2026 Protocol Cluster update.
Fusaka: Shipped December 2025, delivering PeerDAS and data-availability sampling. This upgrade was completed before the personnel losses accelerated.
The immediate risk is not that any single upgrade gets cancelled — client teams maintain independent implementation capacity — but that inter-client coordination and research direction lose coherence without the institutional memory represented by seven-year veterans like Beek and Beiko.
On May 12, 2026, the EF named three new Protocol Cluster co-leads:
None carries the public profile of their predecessors. According to reporting from CoinDesk, this is intentional — the replacement structure is designed to be flatter and less personality-dependent, consistent with the EF's mandate to distribute coordination rather than concentrate it.
Community reaction has split along predictable lines.
Crisis narrative: Andy, co-founder of the Rollup podcast, posted "What's happening at the EF?" on X, reflecting widespread confusion. Joon Ian Wong, a crypto journalist, criticized communication: "Why can't the EF just be transparent about things." Pseudonymous commentator DefiIgnas highlighted the exodus as evidence of organizational dysfunction.
Planned renewal narrative: Community commentator Ryan Berckmans argued the exits reflect deliberate transition rather than crisis, framing it as "the time for new blood" and asserting that Buterin's 2025 reorganization is working as designed. Under this interpretation, the EF deliberately shrank its operational footprint, and some departures were expected consequences of that decision.
The EF did not immediately respond to requests for comment from CoinDesk regarding the May departures.
Three structural risks merit monitoring:
Hard-fork cadence degradation. Glamsterdam has already slipped from H1 to Q3 2026. If the replacement leadership team requires additional ramp-up time, the gap between Glamsterdam and Hegota could widen. Historical cadence of one major upgrade per 6-12 months may stretch.
Research capture by L2 interests. With neutral EF coordination weakened, research direction could shift toward priorities favored by the most well-resourced Layer 2 teams. The EF's mandate explicitly aims to prevent this, but institutional capacity to enforce neutrality depends on personnel.
Knowledge concentration in client teams. If coordination consolidates within a single client team (e.g., Geth, which already dominates execution-layer node share), Ethereum's client diversity — a core security property — could erode in practice if not in policy.
Mitigating factor: Protocol Guild, originally organized by departing member Trent Van Epps, has evolved into an independent funding collective for Ethereum core developers. This provides a financial backstop for contributor retention outside the EF payroll structure.
The Ethereum Foundation's 2026 personnel losses are substantial by any measure — eight senior departures touching every layer of the Protocol Cluster within five months. The question is whether this represents institutional failure or institutional design.
The evidence supports elements of both interpretations. The departures are consistent with Buterin's stated objective of shrinking the EF's operational role. They are also consistent with a compensation structure that cannot retain senior talent against well-funded competitors. The two explanations are not mutually exclusive.
What matters operationally is execution. Glamsterdam is the test case. If the upgrade ships in Q3 2026 with its full feature set — ePBS, EOF, 200M gas target — the restructuring thesis holds. If it slips further, or if Hegota's scope narrows, the talent drain narrative gains empirical support.
ETH at $2,100 prices in limited near-term market impact from the departures. The institutional effects, if any, operate on a 12-24 month horizon tied to upgrade cadence, research output, and client coordination quality.