Ethereum Co-Founder Joseph Lubin Deposits 110,000 ETH Into Sky Vaults to Bolster DAI Collateral

Ethereum co-founder Joseph Lubin has moved 110,000 ETH—about $170 million—into Sky vaults, the DeFi lending system formerly known as MakerDAO, in a transaction that reactivated a wallet dormant for more than three years. Onchain analysts say the ETH was added as additional collateral backing a major borrowing position tied to roughly $259 million in DAI debt. Onchain Lens flagged the transfer, which CoinMarketCap amplified on June 8, 2026. Market watchers focused on where the funds went: into collateralized lending infrastructure rather than exchange wallets. In crypto markets, exchange deposits are often read as potential sell-side intent, while vault deposits typically signal a move to protect leverage and maintain exposure. According to onchain data, the ETH was distributed across multiple Sky vaults. After the top-up, the combined positions held more than 412,000 WETH in collateral, increasing the buffer against volatility and lowering the risk of liquidation during a sharp drawdown. The collateral was added in separate stages, suggesting a deliberate effort to strengthen risk controls. Sky remains a core pillar of decentralized finance, enabling users to borrow DAI without traditional intermediaries as long as collateral requirements are met. Lubin's move also underscores how large holders are increasingly using DeFi to raise liquidity without selling long-term positions. Despite Ethereum's price pressure this year, the additional collateral points to a defensive portfolio adjustment aimed at preserving exposure rather than exiting it.