Ball Titus B. 4

What Happened

• Titus B. Ball, Principal Accounting Officer of BeOne Medicines Ltd. (ONC), sold a total of 136 American Depositary Shares (ADS) on June 8, 2026. The sales consisted of 100 ADS at a weighted average price of $271.06 (proceeds $27,106) and 36 ADS at a weighted average price of $272.08 (proceeds $9,795), for aggregate proceeds of $36,901. These sales were effected to satisfy mandatory tax withholding in connection with the vesting of restricted share units (RSUs).

Key Details

• Transaction date: June 8, 2026; Form 4 filed June 10, 2026 (timely filing).
• Shares sold: 100 ADS @ $271.06 (weighted avg), 36 ADS @ $272.08 (weighted avg); total 136 ADS; total proceeds $36,901.
• Price ranges: the 100-ADS tranche sold across prices from $271.00 to $271.48; the 36-ADS tranche sold across $272.00 to $272.24. Weighted averages reported; breakdowns available from the filer on request (per footnotes).
• Reason for sale: Mandatory tax withholding related to RSU vesting (footnote). Vesting schedule noted: 1/4 of the securities vest each anniversary of June 5, 2024, subject to continued service.
• ADS conversion: Each ADS represents 13 ordinary shares — 136 ADS = 1,768 ordinary shares.
• Shares owned after transaction: Not specified in the provided filing.

Context

• These sales were made as tax-withholding exits tied to RSU vesting (routine, non-discretionary) rather than open-market investment-driven sales; such withholding transactions are common and do not necessarily signal a change in the insider’s view of the company.