Form 4 Filing for Timothy J. Mayopoulos

This filing details transactions by Timothy J. Mayopoulos, a director at Blend Labs, Inc. On June 11, 2026, Mayopoulos acquired 50,000 shares of Class A Common Stock through the vesting of 50,000 Restricted Stock Units (RSUs). The RSUs, which represent a contingent right to one share of Class A Common Stock each, vested based on continued service as a director. The acquisition was a non-cash transaction with a reported price of $0.00 per share. Following this transaction, Mayopoulos holds 431,130 shares of Class A Common Stock directly. The filing also includes a Power of Attorney, authorizing representatives to complete and execute Section 16 reports on Mayopoulos's behalf.