Sec Form 3 Filing - Mullin Peter George @ UNIVERSAL BIOSENSORS INC - 2024-12-31

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL OMB Number: 3235-0287 Expires: November 30, 2011 Estimated average burden hours per response... 0.5

1. Name and Address of Reporting Person Mullin Peter George 2. Issuer Name and Ticker or Trading Symbol UNIVERSAL BIOSENSORS INC [ UBI] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) Chief Financial Officer (Last) (First) (Middle) UNIVERSAL BIOSENSORS, INC.,, 1 CORPORATE AVENUE 3. Date of Earliest Transaction (MM/DD/YY) 12/31/2024 (Street) ROWVILLE, C33178 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 Common Stock 444,424 D Common Stock 577,000 I Mullin Family Trust ( 1 ) Common Stock 1,519,261 I Mullin Family Superannuation Fund ( 2 )

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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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 (MM/DD/YY) 7. Title and Amount of Underlying Securities (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 of Derivative Security: 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 Stock Option (Right to Buy) $ 0.2 ( 3 ) 05/08/2024 05/08/2027 Common stock 99,424 D Stock Option (Right to Buy) $ 0.2 ( 3 ) 05/08/2024 05/08/2027 Common stock 100,000 I Mullin Family Trust ( 1 ) Stock Option (Right to Buy) $ 0.2 ( 3 ) 05/08/2024 05/08/2027 Common stock 275,003 I Mullin Family Superannuation Fund ( 2 )

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Mullin Peter George UNIVERSAL BIOSENSORS, INC., 1 CORPORATE AVENUE ROWVILLE, C33178 X Chief Financial Officer Signatures /s/ Salesh Balak, Attorney in Fact 02/12/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents securities held by the Mullin Family Trust. The Reporting Person is the trustee of the Mullin Family Trust, and members of the Reporting Person's immediate family are the sole beneficiaries. The Reporting Person disclaims beneficial ownership of these securities, except to the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the Reporting Person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. ( 2 )Represents securities held by the Mullin Family Superannuation Fund for the benefit of the Reporting Person. The Reporting Person is the co-trustee of the Mullin Family Superannuation Fund, and members of the Reporting Person's immediate family are the sole beneficiaries. The Reporting Person disclaims beneficial ownership of these securities, except the extent of his pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of such securities for purposes of Section 16 or for any other purpose. ( 3 )Stated in Australian dollars.

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.