111, Inc. Director Sun Jian David's RSU Grants and Tax Withholding Sales

This Form 4 filing reports equity transactions by 111, Inc. director Sun Jian David involving restricted stock units (RSUs). The filing shows two significant RSU grants in May 2026: 378,737 RSUs granted on May 11, 2026 that vested immediately, and 413,168 RSUs granted on May 12, 2026 with a four-year vesting schedule. The director also engaged in multiple sales of RSUs between May 26 and June 15, 2026 to cover tax withholding obligations associated with the vesting of these awards. These sales totaled 397,040 RSUs at prices ranging from $0.22 to $0.27 per share. Following these transactions, the director's remaining RSU holdings stood at 413,211 units. All transactions were reported as direct ownership and the filing includes detailed footnotes explaining the vesting terms and tax withholding purposes.