BeOne Medicines SVP disposes 590 ADS for taxes

BeOne Medicines Ltd. executive Henry Lee Chan reported an automated sale of American Depositary Shares to satisfy tax obligations tied to restricted share unit vesting.

Rhea-AI Filing Summary

BeOne Medicines Ltd. executive Henry Lee Chan reported an automated sale of American Depositary Shares to satisfy tax obligations tied to restricted share unit vesting. He sold 590 American Depositary Shares at $265.975 each, representing 13 ordinary shares per ADS, and now directly holds 338,884 Ordinary Shares.

Insider Trade Summary

Net Seller: 590 shares

Net Sell 2 txns

Insider Lee Chan Henry

Role SVP, General Counsel

Sold 590 shs ($157K)

Type	Security	Shares	Price	Value
Sale	American Depositary Shares	590	$265.975	$157K
holding	Ordinary Shares	--	--	--

Holdings After Transaction: American Depositary Shares — 0 shares (Direct); Ordinary Shares — 338,884 shares (Direct)

Footnotes (2)

1. F1. Each American Depositary Share represents 13 Ordinary Shares.
2. F2. The sale was effected pursuant to a mandatory tax withholding provision in the Reporting Person's restricted share unit award agreement in connection with the vesting of a restricted share unit award previously granted to the Reporting Person. 1/4th of the securities will vest on each anniversary of June 15, 2023, subject to continued service. Unvested securities are subject to accelerated vesting upon certain termination events.

Key Figures

ADS sold: 590 ADS Sale price per ADS: $265.975 per ADS Ordinary shares held after: 338,884 Ordinary Shares +2 more

5 metrics

ADS sold 590 ADS Open-market sale on 2026-06-16 linked to tax withholding

Sale price per ADS $265.975 per ADS Price for 590 American Depositary Shares sold

Ordinary shares held after 338,884 Ordinary Shares Direct holdings following reported transactions

ADS-to-Ordinary ratio 13 Ordinary Shares per ADS Conversion ratio disclosed in footnote

Net ADS share change -590 ADS Net buy/sell shares in transaction summary

Key Terms

American Depositary Shares, restricted share unit, mandatory tax withholding, accelerated vesting

4 terms

American Depositary Shares financial

"Each American Depositary Share represents 13 Ordinary Shares."

American depositary shares (ADSs) are a way for investors in the United States to buy shares of foreign companies without dealing with international markets directly. They represent ownership in a foreign company's stock and are traded on U.S. stock exchanges, making it easier for American investors to buy, sell, and own parts of companies from around the world.

restricted share unit financial

"in connection with the vesting of a restricted share unit award previously granted"

A restricted share unit (RSU) is a promise by a company to give an employee a set number of company shares at a future date, typically after meeting time or performance conditions. For investors, RSUs matter because when they convert into actual shares they increase the number of shares outstanding (like unlocking more tickets in a game), which can dilute existing holders, and they align employee incentives with company performance, influencing behavior and long-term value.

mandatory tax withholding financial

"The sale was effected pursuant to a mandatory tax withholding provision in the Reporting Person's restricted share unit award agreement"

accelerated vesting financial

"Unvested securities are subject to accelerated vesting upon certain termination events."

A contract feature that makes stock awards, options, or restricted shares become owned or exercisable earlier than the original schedule. It shortens or cancels the waiting period so recipients can sell, transfer, or exercise their equity sooner — think of a timed lock that is unlocked ahead of schedule. It matters to investors because it changes when shares enter the market, who controls them, and how much dilution or ownership concentration happens.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction did BeOne Medicines (ONC) report for Henry Lee Chan?

BeOne Medicines reported that SVP and General Counsel Henry Lee Chan sold 590 American Depositary Shares. The transaction was linked to tax withholding on vested restricted share units rather than a discretionary open-market sale.

At what price were the BeOne Medicines (ONC) ADS sold in this Form 4?

The 590 American Depositary Shares were sold at $265.975 per share. This price applied to the mandatory sale used to cover tax withholding arising from the vesting of a restricted share unit award.

How many BeOne Medicines (ONC) Ordinary Shares does Henry Lee Chan hold after the transaction?

After the reported transactions, Henry Lee Chan directly holds 338,884 Ordinary Shares. This figure reflects his position following the ADS sale used to cover tax obligations on vested restricted share units.

What is the relationship between BeOne Medicines (ONC) ADS and Ordinary Shares?

Each American Depositary Share of BeOne Medicines represents 13 Ordinary Shares. This ratio is disclosed in the Form 4 footnotes and determines how ADS amounts translate into the equivalent number of Ordinary Shares.

Was the BeOne Medicines (ONC) insider sale part of routine tax withholding?

Yes. The Form 4 footnote states the sale was effected under a mandatory tax withholding provision in Henry Lee Chan’s restricted share unit award, in connection with the vesting of that award rather than discretionary selling.

How many BeOne Medicines (ONC) ADS did Henry Lee Chan hold after the sale?

Following the transaction, Henry Lee Chan held zero American Depositary Shares. The Form 4 shows total ADS holdings after the sale as 0.0000, while he continues to hold Ordinary Shares directly.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 06/18/2026 - 05:19 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Lee Chan Henry

(Last) (First) (Middle)

C/O BEONE MEDICINES I GMBH

AESCHENGRABEN 27, 21ST FLOOR

(Street)

BASEL 4051

(City) (State) (Zip)

SWITZERLAND

(Country)

2. Issuer Name and Ticker or Trading Symbol
BeOne Medicines Ltd. [ ONC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP, General Counsel

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/16/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Ordinary Shares								338,884	D
American Depositary Shares(1)	06/16/2026		S(2)		590	D	$265.975	0	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Each American Depositary Share represents 13 Ordinary Shares.

2. The sale was effected pursuant to a mandatory tax withholding provision in the Reporting Person's restricted share unit award agreement in connection with the vesting of a restricted share unit award previously granted to the Reporting Person. 1/4th of the securities will vest on each anniversary of June 15, 2023, subject to continued service. Unvested securities are subject to accelerated vesting upon certain termination events.

Remarks:

	/s/ Qing Nian, as Attorney-in-Fact	06/18/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)