BeOne Medicines (ONC) director Elizabeth Fisher Mooney submits Form 3

Rhea-AI Filing Summary

BeOne Medicines Ltd. director Elizabeth Fisher Mooney has filed an initial Form 3, which is the required statement of beneficial ownership for new insiders. The filing summary in this excerpt shows no reported purchases, sales, exercises, gifts, restructurings, or other equity transactions and no listed holdings.

Key Figures

Reported share purchases: 0 shares Reported share sales: 0 shares Option or derivative exercises: 0 transactions +4 more

7 metrics

Reported share purchases 0 shares buyShares in transaction summary

Reported share sales 0 shares sellShares in transaction summary

Option or derivative exercises 0 transactions exerciseCount in transaction summary

Gifts of shares 0 transactions giftCount in transaction summary

Tax-withholding dispositions 0 transactions taxWithholdingCount in transaction summary

Holding entries reported 0 entries holdingEntries in transaction summary

Derivative transactions 0 transactions derivativeTransactionCount in transaction summary

Key Terms

Form 3, ten_percent_owner, transactionSummary, derivativeTransactionCount, +1 more

5 terms

Form 3 regulatory

"INSIDER FILING DATA (Form 3):"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

ten_percent_owner regulatory

""is_ten_percent_owner": 0,"

transactionSummary financial

""transactionSummary": {"

derivativeTransactionCount financial

""derivativeTransactionCount": 0,"

netBuySellDirection financial

""netBuySellDirection": "neutral""

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SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Mooney Elizabeth Fisher

(Last) (First) (Middle)

C/O BEONE MEDICINES I GMBH

AESCHENGRABEN 27, 21ST FLOOR

(Street)

BASEL 4051

(City) (State) (Zip)

SWITZERLAND

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
06/11/2026

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

3a. Foreign Trading Symbol

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

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

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

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

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

Remarks:

Exhibit List - Exhibit 24.1 - Power of Attorney

No securities are beneficially owned.

	/s/ Qing Nian, as Attorney-in-Fact	06/15/2026
	** 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 5 (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 3: SEC 1473 (03-26)

FAQ

What does the BeOne Medicines (ONC) Form 3 filing by Elizabeth Fisher Mooney show?

The Form 3 shows that director Elizabeth Fisher Mooney filed her initial beneficial ownership report. The summarized data in this excerpt indicates zero reported purchases, sales, exercises, gifts, restructurings, or derivative transactions and no holding entries at the time of this filing snapshot.

Did Elizabeth Fisher Mooney buy or sell BeOne Medicines (ONC) shares in this Form 3?

No transactions are reported for Elizabeth Fisher Mooney in this Form 3 snapshot. The transaction summary records zero buy, sell, exercise, gift, tax-withholding, or restructuring events, indicating that this is purely an initial ownership statement with no concurrent trades disclosed here.

Does the BeOne Medicines (ONC) Form 3 disclose any derivative securities for the director?

The excerpted Form 3 data shows no derivative positions for the director. The derivativeSummary is empty and derivativeTransactionCount is zero, meaning there are no reported options, warrants, or other derivative securities associated with Elizabeth Fisher Mooney in this particular snapshot.

Is Elizabeth Fisher Mooney a 10% owner of BeOne Medicines (ONC) according to this Form 3?

The Form 3 identifies Elizabeth Fisher Mooney as a director but not a ten percent owner. The is_ten_percent_owner flag is set to zero, indicating she is not classified as owning ten percent or more of BeOne Medicines’ equity based on this filing excerpt.

What does a zero netBuySellDirection mean in the BeOne Medicines (ONC) Form 3 data?

A neutral netBuySellDirection with zero netBuySellShares indicates no net buying or selling activity is reported. In this Form 3 snapshot, buyCount, sellCount, and related transaction counts are all zero, so the report functions only as an initial ownership registration for the director.