Form: SCHEDULE 13D/A

General Statement of Acquisition of Beneficial Ownership

April 3, 2025






If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. Checkbox not checked

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).






SCHEDULE 13D



Comment for Type of Reporting Person:
(1) Includes (i) 27,999,880 shares of Common Stock held individually by Dr. Hsiao; (ii) 5,127,404 shares of Common Stock held by Hsu Gamma Investment, L.P. ("Hsu Gamma"), which is controlled by Dr. Hsiao as general partner; and (iii) options to acquire 2,550,000 shares of Common Stock, which are exercisable within 60 days. (2) Calculated based on (i) 793,051,553 shares outstanding as of April 3, 2025, as communicated by the Issuer to the Reporting Person; and (ii) options to acquire 2,550,000 shares of Common Stock, which are exercisable within 60 days.


SCHEDULE 13D



Comment for Type of Reporting Person:
(1) Calculated based on 793,051,553 shares outstanding as of April 3, 2025, as communicated by the Issuer to the Reporting Person.


SCHEDULE 13D

 
HSIAO JANE PH D
 
Signature: /s/ Jane H. Hsiao, Ph.D.
Name/Title: Jane H. Hsiao, Ph.D., Individually
Date: 04/03/2025
 
Hsu Gamma Investments, LP
 
Signature: /s/ Jane H. Hsiao, Ph.D.
Name/Title: Jane H. Hsiao, Ph.D., General Partner
Date: 04/03/2025