Horizon Robotics disclosed that it repurchased 1.22 million Class B WVR ordinary shares on 15 April 2026 via on-market transactions at prices ranging from HKD 7.08 to HKD 7.10 per share, for a total consideration of HKD 8.68 million. The volume-weighted average price was approximately HKD 7.10 per share. All repurchased shares will be held in treasury.

Capital structure impact • Issued Class B shares fell from 12.52 billion to 12.51 billion, a reduction of 0.0084%. • Treasury shares increased from 12.07 million to 13.29 million. • The company’s total issued share count, including treasury shares, remained unchanged at 12.53 billion.

Repurchase mandate utilisation • The buyback forms part of the mandate granted on 10 June 2025, which authorises up to 1.32 billion shares for repurchase. • Cumulative repurchases under this mandate now total 13.29 million shares, equivalent to 0.1007% of the shares outstanding on the mandate date.

Regulatory timetable • Under Hong Kong listing rules, Horizon Robotics is subject to a moratorium on issuing new shares or disposing of treasury shares until 15 May 2026.

Joint Company Secretary Qi Zhao signed the disclosure, confirming compliance with all applicable regulations.