William Wing Yan Dr Lo - 18 Mar 2026 Form 3 Insider Report for Regencell Bioscience Holdings Ltd (RGC)

Role: Director
Signature: /s/ James Wai Hong Chung, attorney-in-fact
Issuer symbol: RGC
Transactions as of: 18 Mar 2026
Net transactions value: $0
Form type: 3
Filing time: 18 Mar 2026, 09:18:02 UTC
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
LO WILLIAM WING YAN DR	Director	C/O 9/F CHINACHEM LEIGHTON PLAZA, 29 LEIGHTON ROAD, CAUSEWAY BAY, HONG KONG, CHINA	/s/ James Wai Hong Chung, attorney-in-fact	18 Mar 2026	0001134441

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
holding	RGC	Stock option (right to purchase)							18 Mar 2026	Ordinary shares, par value $0.00001	592,230	$0.8400	Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The Reporting Person was granted the option on January 1, 2022 pursuant to the Issuer's 2021 Share Option Plan. The option vested equally each of the four anniversaries of the grant date and is now fully vested.

Remarks:

Exhibit 24 - Power of Attorney