Blend Labs, Inc.

Except as described below, during the three months ended March 31, 2025, none of our officers or directors, as defined in Rule 16a-1(f) of the Exchange Act, adopted, modified, orterminated any contract, instruction, or written plan for the purchase or sale of our securities that was intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) (a “Rule 10b5-1 trading arrangement”) or any “non Rule 10b5-1 trading arrangement,” as defined in Regulation S-K Item 408.

On January 25, 2025, Oxana Tkach, our Head of Accounting and FP&A, terminated her Rule 10b5-1 trading arrangement previously adopted on May 24, 2024. The terminated trading plan provided for the potential sale of up to an aggregate of 70,000 shares of our Class A common stock. As of the termination date,50,623 shares of our Class A common stock were sold under the trading arrangement.

On March 12, 2025, Ms. Tkach adopted a Rule 10b5-1 trading arrangement providing for the potential sale from time to time of an aggregate of up to 168,929 shares of our Class A common stock, plus sales of shares of our Class A common stock issued upon the vesting of restricted stock units to be sold pursuant to Ms. Tkach’s trading arrangement to be determined based on market prices of our Class A common stock. The trading arrangement is intended to satisfy the affirmative defense in Rule 10b5-1(c). The duration of the trading arrangement is until December 31, 2025, or earlier if all transactions under the trading arrangement are completed.

On March 14, 2025, Winnie Ling, our Head of Legal and People, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of an aggregate of up to 167,000 shares of our Class A common stock, with the exact number of shares to be sold pursuant to Ms. Ling’s trading arrangement to be determined based on market prices of our Class A common stock. The trading arrangement is intended to satisfy the affirmative defense of Rule 10b5-1(c). The duration of the trading arrangement is until December 15, 2025, or earlier if all transactions under the trading arrangement are completed.

On March 14, 2025 Brian Kneafsey, our Head of Revenue, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of an aggregate of up to 500,000 shares of our Class A common stock, with the exact number of shares to be sold pursuant to Mr. Kneafsey’s trading arrangement to be determined based on market prices of our Class A common stock. The trading arrangement is intended to satisfy the affirmative defense of Rule 10b5-1(c). The duration of the trading arrangement is until June 16, 2026, or earlier if all transactions under the trading arrangement are completed.

On March 4, 2025, Eric Woersching, amember of our board of directors, adopted a Rule 10b5-1 trading arrangement providing for the sale from time to time of an aggregate of up to 40,000 shares of our Class A common stock, plus sales of shares of our Class A common stock issued upon the vesting of restricted stock units to be sold pursuant to Mr. Woersching's trading arrangement to be determined based on market prices of our Class A common stock. The trading arrangement is intended to satisfy the affirmative defense of Rule 10b5-1(c). The duration of the trading arrangement is until June 30, 2026, or earlier if all transactions under the trading arrangement are completed.