$ACON

$1.93 +$0.00 (0.0%) Close

$ACON Overview Financial Statements SEC Filings Executives News Red Flags Capital Raising Ownership Insider Transactions Congressional Trades

Ownership

13F as of Q2 2026 · 2.9M shares outstanding

Who owns ACON?

By type of holder

Institutions 3.5% Insiders 16.4% Everyone else 80.1%

Concentration Top 10 holders own 16.3%

Ness Brent 3.9% · Thramann Jeffrey John 3.5%

Institutional ownership

3.5%

-0.4 pts vs last qtr

Institutional holders

+4 vs last qtr

Net shares bought

−12.6K

by institutions in Q2 2026

New / sold out

6 / 2

positions opened vs closed

How is ownership changing?

Institutions, last 8 quarters

Biggest buyers in Q2 2026

Bridgeway Capital Management, LLC NEW +19.5K
Vanguard Fiduciary Trust Co NEW +16.0K

Biggest sellers in Q2 2026

Osaic Holdings, Inc. −29.9K
Geode Capital Management, LLC −19.1K

Who is planning to sell?

No insider has filed a notice of proposed sale (Form 144) for Aclarion Inc in the last 12 months.

Is your stake being diluted?

Diluted share count, FY2024–FY2025

+56319.5%

+56319.51% a year

Each share's claim on the business

−99.8%

shrank without buying or selling a share

Spent on buybacks vs paid in stock

— vs $393K

over 2 fiscal years

Diluted shares, split-adjusted

Buybacks Stock-based comp

How patient are the owners?

Institutional shares by how long they've been held

5+ years0% 3–5 years0% 1–3 years0% Under 1 year100%

Quarterly turnover

49.6%

of institutional shares changed hands

Top 10 managers, median time held

1 quarter

Super Investors

Investment managers reporting ACON on Form 13F

Holder	Shares	% of company	Change vs last qtr	Held since	% of their book
OH Osaic Holdings, Inc.	5.0K	0.17%	−29.9K (−85.7%)	Q1 '26	0.0%
Shares held by quarter Peak holding34.9K (Q1'26) Change over 8 quarters+5.0K Share of the company0.170% Osaic Holdings, Inc.'s full portfolio →
GC Geode Capital Management, LLC	12.1K	0.42%	−19.1K (−61.1%)	Q1 '26	0.0%
Shares held by quarter Peak holding33.9K (Q3'24) Change over 8 quarters−21.8K Share of the company0.420% Geode Capital Management, LLC's full portfolio →

Osaic Holdings, Inc.

5.0K

% of company

0.17%

Change vs last qtr

−29.9K (−85.7%)

Held since

Q1 '26

Geode Capital Management, LLC

12.1K

% of company

0.42%

Change vs last qtr

−19.1K (−61.1%)

Held since

Q1 '26

14 more super investors behind a free account

See every manager holding Aclarion Inc, how their position has changed, and how long they've held it.

Institutional Funds

Mutual funds and ETFs reporting ACON on Form N-PORT; together they hold 0.6% of the company

Fund	Position value	Shares	% of company	% of the fund	As of
FE Fidelity Extended Market Index Fund Fidelity Concord Street Trust	$26.4K	11.1K	0.38%	0.00%	August 31, 2026
VE Vanguard Extended Market Index Fund Vanguard Index Funds	$19.5K	6.8K	0.24%	0.00%	June 30, 2026

Fidelity Extended Market Index Fund

Fidelity Concord Street Trust

Position value

$26.4K

% of company

0.38%

% of the fund

0.00%

As of

August 31, 2026

Vanguard Extended Market Index Fund

Vanguard Index Funds

Position value

$19.5K

% of company

0.24%

% of the fund

0.00%

As of

June 30, 2026

1 more funds behind a free account

See every fund holding Aclarion Inc and how much of the fund the position is.

Insiders and 5%+ holders

From Forms 3/4/5 and Schedules 13D/G

Holder	Shares	% of company	Change vs last qtr	8 quarters	Held since	% of their book
NB Ness Brent Insider	111.5K	3.87%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company3.870% Ness Brent's insider activity →
TJ Thramann Jeffrey John Insider	100.0K	3.47%	—	—	—	—
Insider holdings come from Form 3/4/5 filings, which are not quarterly. Share of the company3.470% Thramann Jeffrey John's insider activity →

Ness Brent

Insider

111.5K

% of company

3.87%

Change vs last qtr

—

Held since

—

Thramann Jeffrey John

Insider

100.0K

% of company

3.47%

Change vs last qtr

—

Held since

—

7 more holders behind a free account

See every insider and 5%+ holder of Aclarion Inc.

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