SEC ownership of EBR Systems, Inc.

Top holders, 13D/G large-stake signals, insider positions, and transaction flow tied to CIK 0001347123.

Comparable stake leader

Regal Partners Funds Management Pty Ltd

Disclosed value leader

Exor N.V.

Comparable rows

6/17

Latest evidence

30 Jun 2026

Ownership snapshot CIK-linked ownership evidence from parsed SEC filings. 3 signals
Comparable ownership rows
6 of 17
Meaning: Rows with safely comparable ownership %
Latest 13D/G holder
Regal Partners Funds Management Pty Ltd
Source: Latest parsed Schedule 13D/G stake
Latest parsed ownership date
30 Jun 2026
Freshness: Most recent filing date in this holder set
Issuer Names, identifiers, and filing context for this profile. 2 identity fields
Issuer CIK
0001347123
Issuer location
Sunnyvale, CA

Ownership snapshot

Top shareholders of EBR Systems, Inc. (13F + 13D/G + 3/4/5)

Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.

Comparable stake leader
Regal Partners Funds Mana...
Disclosed value leader
Exor N.V.
Comparable rows
6/17
Latest evidence
30 Jun 2026
13D/G 3/4/5 13F Lead comparable stake: 12% 11 rows are not safely comparable across share classes. 13D/G row: Regal Partners Funds Management Pty Ltd Showing 1-8 of 17 holder rows.

Quick read

Regal Partners Funds Management Pty Ltd leads the comparable SEC ownership view at 12%.

6 of 17 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.

Open SEC evidence Opens Regal Partners Funds Management Pty Ltd's linked filing trail.
Comparable ownership Top 5
Regal Partners Funds Management P... 12%
Host-Plus Pty Ltd as trustee for ... 11%
H.E.S.T. Australia Ltd. as truste... 8.5%
Exor N.V. 617%
ORBIMED ADVISORS LLC 21%

Ownership % is shown only when SEC disclosures are safely comparable across share classes.

Detailed SEC evidence table Showing 1-8 of 17 holder rows
Holder Evidence Ownership % Position 12M Net Δ As of
Regal Partners Funds Management Pty Ltd
13D/G
Regal Partners Funds Management Pty Limited
12%
87,510,124 shares
$0 30 Jun 2026
Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust
3/4/5 13D/G
10%+ Owner
11%
from 13D/G
$23,109,790
42,795,906 shares
30 Sep 2024
H.E.S.T. Australia Ltd. as trustee for HESTA
13D/G
H.E.S.T. Australia Ltd.
8.5%
36,581,484 shares
$0 30 Jun 2025
Exor N.V.
13F
Company
13F
617%
$5,001,704,778
182,543,970 shares
31 Mar 2026
ORBIMED ADVISORS LLC
13F
Company
13F
21%
$22,079,801
6,210,899 shares
31 Mar 2026
Strategic Investment Solutions, Inc. /IL
13F
Company
13F
0%
$29,157
127 shares
31 Mar 2026
Mark H. Carnegie
3/4/5
10%+ Owner
class O/S missing
$22,197,343
41,106,191 shares
30 Sep 2024
Christopher Nave
3/4/5
Director
mixed-class rows
$11,298,488
209,992 shares
mixed-class rows
06 May 2026
How to read this table

Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.

Forms 3/4/5 flow

Insider trading overview

Insider buy and sell flow is broadly balanced over the last 12 months. No Buy or Sell transactions have been reported since 08 Jul 2025.

Buys
$0
Insiders: 0
Sells
$0
Insiders: 0
Net
$0
Shares: 0
Window
Last 12 months
4 rolling buckets
Buy value Sell value
Shares: 0 Shares: 0
Window (months) Buy shares Sell shares Buy value Sell value Net value
0-3 0 0 $0 $0 $0
3-6 0 0 $0 $0 $0
6-9 0 0 $0 $0 $0
9-12 0 0 $0 $0 $0

Reporting owners

Insider holders from Forms 3/4/5

Showing 1-12 of 12 reporting-owner rows connected to EBR Systems, Inc.. Open a relationship link for the CIK-to-CIK filing trail.

Rows
12
Largest Forms 3/4/5 holder
Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust
Net 12M change
$0
Latest report
29 Jun 2026
Name Relationship Holdings Value Past Year Net Change Change % Valuation Report Date
Host-Plus Pty Ltd as trustee for the HOSTPLUS Pooled Superannuation Trust 10%+ Owner $23,109,790 Mixed 30 Sep 2024
Mark H. Carnegie 10%+ Owner $22,197,343 Mixed 30 Sep 2024
Christopher Nave Director $11,298,488 Mixed 06 May 2026
Allan R. Will Director $831,211 Mixed 06 May 2026
Bronwyn Evans Director $308,694 Mixed 29 Jun 2026
Michael Hendricksen Chief Operating Officer Mixed 24 Jun 2026
Karen Drexler Director Mixed 06 May 2026
John McCutcheon President and CEO, Director Mixed 06 May 2026
Erik Strandberg Chief Commercial Officer Mixed 24 Jun 2026
Gary W. Doherty Chief Financial Officer Mixed 24 Jun 2026
David Steinhaus Director Mixed 06 May 2026
Trevor J. Moody Director Mixed 06 May 2026

Recent insider transactions for EBR Systems, Inc.

Showing up to 300 recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % SEC-reported value SEC-reported price Shares Shares owned Date Ownership
Bronwyn Evans EBRCZ Common Stock Exercise of in-the-money or at-the-money derivative security 32.4% 27,579 112,737 29 Jun 2026 By Bronwyn Evans and Peter Douglas Gordon
Bronwyn Evans EBRCZ Subscription Rights (right to buy) Exercise of in-the-money or at-the-money derivative security -100% -27,579 0 29 Jun 2026 By Bronwyn Evans and Peter Douglas Gordon
Bronwyn Evans EBRCZ Subscription Rights (right to buy) Exercise of in-the-money or at-the-money derivative security 27,579 27,579 29 Jun 2026 By Bronwyn Evans and Peter Douglas Gordon
Erik Strandberg EBRCZ Stock Option (right to buy) Award 50,000 50,000 24 Jun 2026 Direct
Michael Hendricksen EBRCZ Stock Option (right to buy) Award 54,000 54,000 24 Jun 2026 Direct
Gary W. Doherty EBRCZ Stock Option (right to buy) Award 60,000 60,000 24 Jun 2026 Direct
Bronwyn Evans EBRCZ Common Stock Exercise of in-the-money or at-the-money derivative security 54.4% 30,000 85,158 15 Jun 2026 By Bronwyn Evans and Peter Douglas Gordon
Allan R. Will EBRCZ Stock Option (right to buy) Award 42,106 42,106 06 May 2026 Direct
David Steinhaus EBRCZ Stock Option (right to buy) Award 34,211 34,211 06 May 2026 Direct
Christopher Nave EBRCZ Stock Option (right to buy) Award 34,211 34,211 06 May 2026 Direct
Trevor J. Moody EBRCZ Stock Option (right to buy) Award 34,211 34,211 06 May 2026 Direct
John McCutcheon EBRCZ Stock Option (right to buy) Award 188,462 188,462 06 May 2026 Direct
Bronwyn Evans EBRCZ Stock Option (right to buy) Award 34,211 34,211 06 May 2026 Direct
Karen Drexler EBRCZ Stock Option (right to buy) Award 34,211 34,211 06 May 2026 Direct
John McCutcheon EBRCZ Common Stock Options Exercise 109,100 109,100 23 Mar 2026 Direct
John McCutcheon EBRCZ Stock Option (right to buy) Options Exercise -6.86% -109,100 1,480,900 23 Mar 2026 Direct
Allan R. Will EBRCZ Common Stock Options Exercise 58,500 58,500 26 Feb 2026 Direct
Allan R. Will EBRCZ Stock Option (right to buy) Options Exercise -100% -58,500 0 26 Feb 2026 Direct
Bronwyn Evans EBRCZ Common Stock Options Exercise 55% 195,796 551,579 18 Aug 2025 By Bronwyn Evans and Peter Douglas Gordon
Bronwyn Evans EBRCZ Employee Stock Option (right to buy) Options Exercise -100% -32,159 0 18 Aug 2025 Direct
Bronwyn Evans EBRCZ Employee Stock Option (right to buy) Options Exercise -100% -163,637 0 18 Aug 2025 By Bronwyn Evans and Peter Douglas Gordon
* marks a reported price that did not pass the local price check.
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