Form 4 Filing for Doyle Mittie at Cullinan Therapeutics, Inc.

This filing reports a stock option grant to Doyle Mittie, a director at Cullinan Therapeutics, Inc. The option, exercisable for 21,781 shares of Common Stock, was granted on June 16, 2026, with a price per share of $0.00. The option vests in full on the earlier of June 16, 2027, or the date of the Issuer's next annual meeting, contingent upon continued service as a director. The filing also notes that the option has an exercise price of $13.55 and an expiration date of June 16, 2026. Following this transaction, Mittie holds 21,781 shares.