Aclarion, Inc.
Aclarion, Inc. (ACON) Stock Ownership
Institutional vs insider vs public ownership from 13F and float data — top holders, activity, and insider trades below.
SEC 13F · FMP · ACON · as of Mar 31, 2025
Ownership Breakdown
6
Institutional Holders
▼ 3 vs Q4
$734
Total Inst. Value
▼ $65,674 vs Q4
533,309
Shares Outstanding
freeFloat 100.00%
68
13F Shares Held
▼ 462,431 vs Q4
Institutional ownership = 13F shares ÷ total outstanding. Insider % = 100 − free float. Public % = free float − institution %. Data: FMP /symbol-positions-summary + /shares-float + SEC EDGAR.
Top Institutional Holders
ACON largest shareholders · institutional ownership
Q1 2025 · SEC 13F
Showing top 10 holders
| Holder | Shares | % Owned | Weight | Value | Reported | Change |
|---|---|---|---|---|---|---|
UBS GROUP AG services-medical laboratories | 52 | 2.37% | 2.37% | $562,000 | May 13, 2025 | NEW |
MORGAN STANLEY services-medical laboratories | 5 | 0.23% | 0.23% | $54,000 | May 15, 2025 | NEW |
BANK OF AMERICA CORP /DE/ services-medical laboratories | 4 | 0.18% | 0.18% | $43,000 | May 15, 2025 | NEW |
TOWER RESEARCH CAPITAL LLC (TRC) services-medical laboratories | 3 | 0.14% | 0.14% | $32,000 | May 15, 2025 | NEW |
CLEAR STREET LLC services-medical laboratories | 3 | 0.14% | 0.14% | $32,000 | May 15, 2025 | NEW |
DANSKE BANK A/S services-medical laboratories | 1 | 0.05% | 0.05% | $11,000 | Dec 18, 2025 | NEW |
TOWER RESEARCH CAPITAL LLC (TRC) services-medical laboratories | 0 | 0.00% | 0.00% | $0 | May 15, 2025 | EXIT |
VIRTU FINANCIAL LLC services-medical laboratories | 0 | 0.00% | 0.00% | $0 | May 12, 2025 | EXIT |
BANK OF AMERICA CORP /DE/ services-medical laboratories | 0 | 0.00% | 0.00% | $0 | May 15, 2025 | EXIT |
SCIENTECH RESEARCH LLC services-medical laboratories | 0 | 0.00% | 0.00% | $0 | May 15, 2025 | EXIT |
Data from SEC Form 13F filings. Ownership bar normalised to largest holder. Change flags: isNew / isSoldOut / changeInSharesNumber (FMP extract-analytics/holder).
Institutional Activity
Q1 2025 vs prior quarter
Q1 2025
0
Increased
+0 shares6
New Positions
first time holders0
Decreased
−0 shares9
Sold Out
fully exitedNet shares change (top 50)
+0
+0 / −0
Net new holders
-3
6 new / 9 exited
Based on top 50 institutional holders by position size. Fields: isNew, isSoldOut, changeInSharesNumber (FMP extract-analytics/holder, limit=50).
Insider Buying vs Selling
ACON insider trading · insider activity
Source: SEC Form 4
Insiders have been net buyers of shares recently. Selling may be driven by pre-scheduled Rule 10b5-1 plans rather than negative sentiment.
4
Buy transactions
0
Sell transactions
0.00
Buy/Sell ratio
$0M
Total disposed
Recent Insider Transactions
Showing 10 most recent · Common Stock only
| Name · Role | Date | Type | Shares | Price | Value | After Trans. | Filing |
|---|---|---|---|---|---|---|---|
Breidbart Scott director | May 12, 2026 | Purchase | 5,664 | $3.18 | $18.0K | 5.7K | Form 4 ↗ |
Neal David K director | May 11, 2026 | Purchase | 2,500 | $3.10 | $7.8K | 2.5K | Form 4 ↗ |
Ness Brent Chief Executive Officer | May 11, 2026 | Purchase | 6,289 | $3.18 | $20.0K | 6.3K | Form 4 ↗ |
Wesemann William director | May 6, 2026 | Purchase | 1,562 | $3.30 | $5.2K | 1.6K | Form 4 ↗ |
Ness Brent Chief Executive Officer | Nov 26, 2025 | Purchase | 10 | $6.20 | $62 | 11 | Form 4 ↗ |
Gould Gregory A CFO | Sep 2, 2025 | Award | 17,000 | $7.15 | $121.5K | 17.0K | Form 4 ↗ |
Thramann Jeffrey John Executive Chairman | Mar 28, 2023 | J-Other | 1 | $1000.00 | $1.0K | 0 | Form 4 ↗ |
Thramann Jeffrey John Executive Chairman | Feb 16, 2023 | Purchase | 1 | $1000.00 | $1.0K | 1 | Form 4 ↗ |
Ness Brent Chief Executive Officer | Dec 29, 2022 | Purchase | 7,711 | $0.58 | $4.5K | 19.5K | Form 4 ↗ |
Ness Brent Chief Executive Officer | Dec 29, 2022 | Purchase | 8,500 | $0.51 | $4.3K | 11.8K | Form 4 ↗ |
Source: /insider-trading/search (FMP stable). Buy/Sell direction: acquisitionOrDisposition A=Buy, D=Sell. RSU vesting (M-Exempt) excluded from sentiment bar. All data from SEC EDGAR public filings.
About institutional & insider ownership
Aclarion, Inc. (ACON) is primarily owned by institutional investors, who hold approximately 0.0% of total shares outstanding. Company insiders own approximately 0.00%, while retail and public investors account for the remaining 99.98%.
The largest institutional shareholder of Aclarion, Inc. is UBS GROUP AG, holding approximately 52 shares — equal to 2.37% of outstanding shares — as of March 31, 2025.
A total of 6 institutional investors currently hold ACON stock, with a combined institutional value of approximately $734 as of the most recent 13F filing period.
Frequently asked questions
ACON ownershipAclarion, Inc. (ACON) is primarily owned by institutional investors, who hold approximately 0.0% of shares. The largest shareholder is UBS GROUP AG with a 2.37% stake. Company insiders hold 0.00%. Data sourced from SEC Form 13F as of March 31, 2025.