Form 4 Filing for Maria C. Walker

Maria C. Walker, a director at MapLight Therapeutics, Inc., acquired 3,932 shares of Voting Common Stock and was granted a stock option for 14,902 shares. The stock acquisition was made at a price of $0.00 per share, and the stock option vests on June 23, 2027, or the next annual stockholder meeting. The option has an exercise price of $28.64. These transactions were made pursuant to the Issuer's 2025 Equity Incentive Plan and non-employee director compensation policy. Ms. Walker now holds 62,703 shares of Voting Common Stock following these transactions.