Form 3 Filing for LakeShore Biopharma Co., Ltd. - Yu Rui Ownership

This filing details the initial ownership of securities by Yu Rui, Chief Financial Officer and Director of LakeShore Biopharma Co., Ltd. (LSB). The report, dated March 18, 2026, indicates that Yu Rui holds a share option to buy Ordinary Shares. The option, granted on December 13, 2024, has an exercise price of $1.225 and expires on December 13, 2034. Vesting begins on December 31, 2024, with 25% of the shares vesting then, followed by three equal annual installments for the remaining 75%, contingent upon continued service. The filing also notes that Yu Rui has no other securities directly or indirectly owned at this time, with the exception of this option. The signature date is April 1, 2026.