Host-Plus holds 15.8M EBR Systems (EBRCZ) shares, most with sole votes

Rhea-AI Filing Summary

EBR Systems, Inc. (EBRCZ) is reported to have a significant shareholder under this amended Schedule 13G. Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust reports beneficial ownership of 15,756,215 shares of common stock of EBR Systems, representing 18.5% of the outstanding common stock.

The position includes (i) 3,492,778 shares underlying 34,927,780 CDIs and 311,925 warrant shares held for MRCF 3 (HP) Trust, (ii) 11,049,972 shares underlying 110,499,718 CDIs held for BCP (HP) Co-Investment Trust, and (iii) 783,330 shares underlying 7,833,300 CDIs plus 118,210 warrant shares held for MHC Hostplus Co-Investment Trust. Host-Plus has sole voting power over 14,854,675 shares and shared dispositive power over 901,450 shares.

Key Figures

Shares beneficially owned: 15,756,215 shares of common stock Percent of class: 18.5% Sole voting power: 14,854,675 shares +5 more

8 metrics

Shares beneficially owned 15,756,215 shares of common stock Beneficial ownership reported by Host-Plus for EBR Systems, Inc.

Percent of class 18.5% Percentage of EBR Systems, Inc. common stock beneficially owned by Host-Plus

Sole voting power 14,854,675 shares Shares over which Host-Plus has sole power to vote or direct the vote

Shared dispositive power 901,450 shares Shares over which Host-Plus has shared power to dispose or direct disposition

Shares outstanding baseline 75,335,559 shares Common stock outstanding as of August 11, 2026 used in ownership calculation

Additional shares issued 9,210,527 shares Shares of common stock issued on August 21, 2026 included in denominator

Warrant shares beneficially owned 430,135 shares of common stock Common stock issuable upon exercise of warrants beneficially owned by Host-Plus

CDIs held for BCP (HP) Co-Investment Trust 110,499,718 CDIs Underlying 11,049,972 shares of common stock held for BCP (HP) Co-Investment Trust

Key Terms

beneficially owned, CDIs, dispositive power, warrants

4 terms

beneficially owned financial

"sets forth the aggregate number of shares of common stock ... beneficially owned"

Beneficially owned describes securities or assets where a person has the economic rights and control—such as the right to receive dividends and to direct voting—even if legal title is held in another name. Think of it like having the keys and using a car that’s registered to someone else: you get the benefits and make decisions. Investors care because beneficial ownership reveals who truly controls value and voting power, affecting corporate decisions and takeover dynamics.

CDIs financial

"3,492,778 shares of common stock underlying 34,927,780 CDIs and 311,925 shares"

CDIs (CHESS Depositary Interests) are local certificates that represent ownership of foreign shares so investors can buy, sell and hold those stocks on a domestic exchange without moving the underlying shares across borders. Think of a CDI as a local receipt for a foreign share: it gives most economic rights and easier trading in local currency and settlement systems, which matters to investors for access, liquidity, and the practical handling of dividends and corporate actions.

dispositive power financial

"sole dispositive power with respect to the securities held by each trust"

Dispositive power is the authority to decide the final outcome of an asset, legal claim, contract, or corporate action — in effect the power to dispose of or resolve something. For investors it matters because whoever holds that authority can determine who gets paid, who controls an asset or vote, and how risks and returns are allocated; think of it like holding the key that lets you lock in the winner or loser in a deal.

warrants financial

"311,925 shares of common stock issuable upon exercise of certain warrants held"

Warrants are special documents that give you the right to buy a company's stock at a set price before a certain date. They are often used as a way for companies to attract investors or raise money, and their value can increase if the company's stock price goes up.

FAQ

How many EBR Systems, Inc. (EBRCZ) shares does Host-Plus beneficially own?

Host-Plus Pty Ltd, as trustee for the HOSTPLUS Pooled Superannuation Trust, reports beneficial ownership of 15,756,215 shares of common stock of EBR Systems, Inc., according to this Amendment No. 2 to its Schedule 13G filing.

What percentage of EBR Systems (EBRCZ) is held by Host-Plus?

Host-Plus reports beneficial ownership of 18.5% of EBR Systems, Inc.’s common stock. This percentage is based on outstanding shares plus additional shares issued and warrant shares that are beneficially owned by Host-Plus.

How is Host-Plus’s EBR Systems (EBRCZ) stake structured across its trusts?

The stake comprises (i) 3,492,778 shares plus 311,925 warrant shares for MRCF 3 (HP) Trust, (ii) 11,049,972 shares for BCP (HP) Co-Investment Trust, and (iii) 783,330 shares plus 118,210 warrant shares for MHC Hostplus Co-Investment Trust.

What voting power does Host-Plus have over EBR Systems (EBRCZ) shares?

Host-Plus reports sole voting power over 14,854,675 shares of EBR Systems, Inc. It reports no shared voting power, meaning all reported voting authority is held on a sole basis for these shares.

How were the ownership percentages for Host-Plus in EBR Systems (EBRCZ) calculated?

The 18.5% figure is calculated from 75,335,559 shares outstanding as of August 11, 2026, plus 9,210,527 shares issued on August 21, 2026, and 430,135 warrant shares that are beneficially owned by Host-Plus.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 08/25/2026 - 06:38 AM Accepted by SEC EDGAR 08/25/2026 - 06:37 AM Learn about SEC filing dates

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(Amendment No. 2)

EBR SYSTEMS, INC.

(Name of Issuer)

Common Stock, $0.0001 par value per share

(Title of Class of Securities)

000000000

(CUSIP Number)

08/21/2026

(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

schemaVersion:

SCHEDULE 13G

CUSIP Number(s): 000000000

1

Names of Reporting Persons

Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

AUSTRALIA

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 14,854,675.00
6	Shared Voting Power 0.00
7	Sole Dispositive Power 14,854,675.00
8	Shared Dispositive Power 901,450.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

15,756,215.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

18.5 %

12

Type of Reporting Person (See Instructions)

OO

SCHEDULE 13G

Item 1.
(a)	Name of issuer: EBR SYSTEMS, INC.
(b)	Address of issuer's principal executive offices: 480 Oakmead Parkway, Sunnyvale, CA, 94085.
Item 2.
(a)	Name of person filing: Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust
(b)	Address or principal business office or, if none, residence: Level 9, 114 William Street, Melbourne, Australia VIC 3000
(c)	Citizenship: Australia
(d)	Title of class of securities: Common Stock, $0.0001 par value per share
(e)	CUSIP No.: 000000000
Item 3.	If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)	An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)	An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)	A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J), please specify the type of institution:
(k)	Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.	Ownership
(a)	Amount beneficially owned: Row 9 of the Reporting Person's cover page to this Schedule 13G sets forth the aggregate number of shares of common stock of the Issuer beneficially owned by the Reporting Person and is incorporated by reference. The securities reported herein consist of (i) 3,492,778 shares of common stock underlying 34,927,780 CDIs and 311,925 shares of common stock issuable upon exercise of certain warrants held by MRCF3 Service (HP) Pty Ltd on trust for MRCF 3 (HP) Trust; (ii) 11,049,972 shares of common stock underlying 110,499,718 CDIs held by BB6 Service (HP) Co-investment Trusco Pty Ltd on trust for BCP (HP) Co-Investment Trust; and (iii) 783,330 shares of common stock underlying 7,833,300 CDIs and 118,210 shares of common stock issuable upon exercise of certain warrants held by MHC Fund Services B Pty Ltd as trustee for MHC Hostplus Co-Investment Trust. The Reporting Person is the sole unitholder in each of MRCF 3 (HP) Trust and BCP (HP) Co-Investment Trust and has sole voting and investment power with respect to the securities held by each trust. The Reporting Person is the sole beneficiary of MHC Hostplus Co-Investment Trust and exercises shared dispositive power over the securities held by MHC Fund Services B Pty Ltd.
(b)	Percent of class: Row 11 of the Reporting Person's cover page to this Schedule 13G sets forth the percentage of shares of common stock of the Issuer beneficially owned by the Reporting Person and is incorporated by reference. Such percentage is calculated based upon the sum of: (i) 75,335,559 shares of Common Stock outstanding as of August 11, 2026, as disclosed by the Issuer's Quarterly Report on Form 10-Q, filed with the Securities and Exchange Commission ("SEC") on August 11, 2026; (ii) 9,210,527 shares issued on August 21, 2026; and (ii) 430,135 shares of Common Stock issuable upon exercise of warrants beneficially owned by the Reporting Person.
(c)	Number of shares as to which the person has:
	(i) Sole power to vote or to direct the vote: Row 5 of the Reporting Person's cover page to this Schedule 13G sets forth the sole power to vote or to direct the vote of securities of the Issuer beneficially owned by the Reporting Person and is incorporated by reference.
	(ii) Shared power to vote or to direct the vote: Row 6 of the Reporting Person's cover page to this Schedule 13G sets forth the shared power to vote or to direct the vote of securities of the Issuer beneficially owned by the Reporting Person and is incorporated by reference.
	(iii) Sole power to dispose or to direct the disposition of: Row 7 of the Reporting Person's cover page to this Schedule 13G sets forth the sole power to dispose or to direct the disposition of securities of the Issuer beneficially owned by the Reporting Person and is incorporated by reference.
	(iv) Shared power to dispose or to direct the disposition of: Row 8 of the Reporting Person's cover page to this Schedule 13G sets forth the shared power to dispose or to direct the disposition of securities of the Issuer beneficially owned by the Reporting Person and is incorporated by reference.
Item 5.	Ownership of 5 Percent or Less of a Class.
	Not Applicable
Item 6.	Ownership of more than 5 Percent on Behalf of Another Person.
	Not Applicable
Item 8.	Identification and Classification of Members of the Group.
	Not Applicable
Item 9.	Notice of Dissolution of Group.
	Not Applicable

Item 10.

Certifications:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under § 240.14a-11.

SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust

Signature:	/s/ Greg Clerk
Name/Title:	Attorney under Power of Attorney dated 12/06/2024
Date:	08/25/2026

Signature:	/s/ Susan Orr
Name/Title:	Attorney under Power of Attorney dated 12/06/2024
Date:	08/25/2026