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
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1. Name and Address of Reporting Person *
Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust
(Last) (First) (Middle)
LEVEL 9 114 WILLIAM STREET
(Street)
MELBOURNE 3000
(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
06/29/2026 		3. Issuer Name and Ticker or Trading Symbol
EBR Systems, Inc. [ NONE ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director X 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
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)
Common Stock 2,655,139 (1)
I
By MRCF3 Service (HP) Pty Ltd atf MRCF 3 (HP) Trust (2)
Common Stock 837,638 (1)
I
By MRCF3 Service (SW) Pty Ltd atf MRCF 3 (SW) Trust (3)
Common Stock 783,330 (1)
I
By MHC Fund Services B Pty Ltd as trustee for MHC Hostplus Co-Investment Trust (4)
Common Stock 3,349,853 (1)
I
By BB6 SERVICE (HP) COINVESTMENT TRUSCO PTY LTD atf BCP (HP) Co- Investment Trust (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
Warrant (right to buy) 08/26/2019 08/26/2029 Common Stock 47,235 0.5891 I By MRCF3 Service (HP) Pty Ltd atf MRCF 3 (HP) Trust (2)
Warrant (right to buy) 03/12/2020 03/12/2030 Common Stock 47,235 0.5891 I By MRCF3 Service (HP) Pty Ltd atf MRCF 3 (HP) Trust (2)
Warrant (right to buy) 02/12/2021 02/12/2031 Common Stock 18,894 0.5891 I By MRCF3 Service (HP) Pty Ltd atf MRCF 3 (HP) Trust (2)
Warrant (right to buy) 06/25/2021 06/25/2031 Common Stock 47,910 0.5891 I By MRCF3 Service (HP) Pty Ltd atf MRCF 3 (HP) Trust (2)
Warrant (right to buy) 10/04/2021 10/04/2031 Common Stock 48,214 0.5891 I By MRCF3 Service (HP) Pty Ltd atf MRCF 3 (HP) Trust (2)
Warrant (right to buy) 08/26/2019 08/26/2029 Common Stock 29,529 0.5891 I By MRCF3 Service (SW) Pty Ltd atf MRCF 3 (SW) Trust (3)
Warrant (right to buy) 03/12/2020 03/12/2030 Common Stock 29,529 0.5891 I By MRCF3 Service (SW) Pty Ltd atf MRCF 3 (SW) Trust (3)
Warrant (right to buy) 02/12/2021 02/12/2031 Common Stock 11,811 0.5891 I By MRCF3 Service (SW) Pty Ltd atf MRCF 3 (SW) Trust (3)
Warrant (right to buy) 06/25/2021 06/25/2031 Common Stock 15,734 0.5891 I By MRCF3 Service (SW) Pty Ltd atf MRCF 3 (SW) Trust (3)
Warrant (right to buy) 10/04/2021 10/04/2031 Common Stock 15,834 0.5891 I By MRCF3 Service (SW) Pty Ltd atf MRCF 3 (SW) Trust (3)
Warrant (right to buy) 08/26/2019 08/26/2029 Common Stock 17,706 0.5891 I By MHC Fund Services B Pty Ltd as trustee for MHC Hostplus Co-Investment Trust (4)
Warrant (right to buy) 03/12/2020 03/12/2030 Common Stock 17,706 0.5891 I By MHC Fund Services B Pty Ltd as trustee for MHC Hostplus Co-Investment Trust (4)
Warrant (right to buy) 02/12/2021 02/12/2031 Common Stock 7,082 0.5891 I By MHC Fund Services B Pty Ltd as trustee for MHC Hostplus Co-Investment Trust (4)
Warrant (right to buy) 06/25/2021 06/25/2031 Common Stock 37,858 0.5891 I By MHC Fund Services B Pty Ltd as trustee for MHC Hostplus Co-Investment Trust (4)
Warrant (right to buy) 10/04/2021 10/04/2031 Common Stock 37,858 0.5891 I By MHC Fund Services B Pty Ltd as trustee for MHC Hostplus Co-Investment Trust (4)
Explanation of Responses:
1. Represents shares of the Issuer's common stock, with each share of common stock corresponding to 10 Chess Depositary Interests ("CDIs"). The CDIs are traded on the Australian Securities Exchange (the "ASX") and are held by CHESS Depositary Nominees Pty, Limited, a subsidiary of ASX Limited, the company that operates the ASX.
2. The Securities are held directly by MRCF3 Service (HP) Pty Ltd as trustee of MRCF3 (HP) Trust. The Reporting Person is the sole beneficiary of MRCF3 (HP) Trust and exercises sole voting and dispositive power over the securities described, held by MRCF3 Service (HP) Pty Ltd.
3. The Securities are held directly by MRCF3 Service (SW) Pty Ltd as trustee of MRCF3 (SW) Trust. The Reporting Person is the sole beneficiary of MRCF3 (SW) Trust and exercises sole voting and dispositive power over the securities described, held by MRCF3 Service (SW) Pty Ltd.
4. The Securities are held directly by MHC Fund Services B Pty Ltd as trustee for MHC Hostplus Co-Investment Trust. The Reporting Person is the sole beneficiary of MHC Hostplus Co-Investment Trust and exercises shared voting and dispositive power over the securities described, held by MHC Fund Services B Pty Ltd.
5. The Securities are held directly by BB6 SERVICE (HP) COINVESTMENT TRUSCO PTY LTD as trustee of BCP (HP) Co- Investment Trust. The Reporting Person is the sole beneficiary of BCP (HP) Co- Investment Trust and exercises sole voting and dispositive power over the securities described, held by BB6 SERVICE (HP) COINVESTMENT TRUSCO PTY LTD.
/s/ Greg Clerk, as duly appointed attorney for Host-Plus Pty Limited as trustee of the Hostplus Pooled Superannuation Trust, having no notice of revocation of the power of attorney dated 6 December 2024 07/07/2026
** Signature of Reporting Person Date
/s/ Amanda Brodie, as duly appointed attorney for Host-Plus Pty Limited as trustee of the Hostplus Pooled Superannuation Trust, having no notice of revocation of the power of attorney dated 6 December 2024 07/07/2026
** 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.
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