Form 3 Filing for Barry D. Quart

This filing details Barry D. Quart's ownership of Connect Biopharma Holdings Ltd. securities. As of March 16, 2026, Quart directly owns 95,147 ordinary shares and indirectly owns an additional 128,887 ordinary shares through a joint account with his spouse. The filing also discloses several stock options granted to Quart. These options vest over four years, with exercise prices ranging from $0.97 to $2.69. The options have expiration dates between 2034 and 2035. Specifically, there are options to buy 2,658,734 shares expiring in 2034 at $1.77, 432,392 shares expiring in 2034 at $0.97, and 700,000 shares expiring in 2035 at $2.69. The filing was made by Lisa Peraza, acting as attorney-in-fact for Barry D. Quart.