Bitdeer Technologies (BTDR)

=== SEC Form 3/A — Statement of Changes in Beneficial Ownership === Document Type: 3/A Period of Report: 2026-03-18 --- Issuer --- Name: Bitdeer Technologies Group (BTDR) CIK: 0001899123 --- Reporting Owner --- Name: Yang Guang George CIK: 0002049212 Role: Director --- Holdings --- [Holding #1] Security: Class A Ordinary Shares Ownership: D (Direct) Footnotes: [F1] Represents shares acquired upon the exercise of a portion of the share options granted on July 1, 2023. [Holding #2] Security: Share Option (right to buy) Ownership: D (Direct) Footnotes: [F2] Represents the unexercised portion of an option to purchase 14,225 Class A Ordinary Shares granted on July 1, 2023. The option vests in four equal annual installments of 25% on each anniversary of the grant date, subject to the Reporting Person's continued service with the Issuer on each such vesting date. [Holding #3] Security: Share Option (right to buy) Ownership: D (Direct) Footnotes: [F3] Represents an option to purchase 9,443 Class A Ordinary Shares granted on July 1, 2024. The option vests in four equal annual installments of 25% on each anniversary of the grant date, subject to the Reporting Person's continued service with the Issuer on each such vesting date. [Holding #4] Security: Share Option (right to buy) Ownership: D (Direct) Footnotes: [F4] Represents an option to purchase 8,850 Class A Ordinary Shares granted on July 1, 2025. The option vests in four equal annual installments of 25% on each anniversary of the grant date, subject to the Reporting Person's continued service with the Issuer on each such vesting date. --- Footnotes (Complete Index) --- F1: Represents shares acquired upon the exercise of a portion of the share options granted on July 1, 2023. F2: Represents the unexercised portion of an option to purchase 14,225 Class A Ordinary Shares granted on July 1, 2023. The option vests in four equal annual installments of 25% on each anniversary of the grant date, subject to the Reporting Person's continued service with the Issuer on each such vesting date. F3: Represents an option to purchase 9,443 Class A Ordinary Shares granted on July 1, 2024. The option vests in four equal annual installments of 25% on each anniversary of the grant date, subject to the Reporting Person's continued service with the Issuer on each such vesting date. F4: Represents an option to purchase 8,850 Class A Ordinary Shares granted on July 1, 2025. The option vests in four equal annual installments of 25% on each anniversary of the grant date, subject to the Reporting Person's continued service with the Issuer on each such vesting date. --- Signature --- /s/ /s/ Yang Guang (2026-03-31)