Autonomix Medical, Inc. (AMIX) Ownership
AMIX ownership summary
as of October 18, 2026- Institutions
- 2.6% of shares outstanding
- Insiders
- 5.73% of shares outstanding
- Shares outstanding
- 2.0M
- Float
- 918K shares available to trade
- Short interest
- 1.45% 27K shares short
- Days to cover
- 0.22 short interest down 56.3% vs prior month
- Institutions 2.60%
- Insiders 5.73%
- Other investors 91.67%
AMIX top institutional holders
20 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Mariner Wealth Advisors LLC | 2.56% | 50K | $142,643 | +47,618 (+1,889.6%) | June 30, 2026 |
| 2 | Allied Private Wealth LLC | 0.02% | 347 | $987 | +347 (0.0%) | June 30, 2026 |
| 3 | Tower Research Capital LLC | 0.02% | 313 | $890 | +35 (+12.6%) | June 30, 2026 |
| 4 | PNC Financial Services Group Inc | <0.01% | 75 | $213 | −1 (−1.3%) | June 30, 2026 |
| 5 | Investors Research Corporation | <0.01% | 8 | $23 | −2 (−20.0%) | June 30, 2026 |
| 6 | Mercer Global Advisors Inc. | <0.01% | 2 | $6 | +2 (0.0%) | June 30, 2026 |
| 7 | Networth Advisors, LLC | <0.01% | 1 | $3 | +1 (0.0%) | June 30, 2026 |
| 8 | HARBOUR INVESTMENTS, INC. | 0.00% | — | — | — | June 30, 2026 |
| 9 | Key Capital Management Inc | 0.00% | — | — | — | June 30, 2026 |
| 10 | Ikarian Capital, LLC | 0.00% | — | — | −890 (−100.0%) | June 30, 2026 |
| 11 | SWAN Capital LLC | 0.00% | — | — | — | June 30, 2026 |
| 12 | Bank of Montreal | 0.00% | — | — | −1,190 (−100.0%) | June 30, 2026 |
| 13 | BMO Capital Markets Corp. | 0.00% | — | — | −1,190 (−100.0%) | June 30, 2026 |
| 14 | Global Retirement Partners, LLC. | 0.00% | — | — | — | June 30, 2026 |
| 15 | UBS Group AG | 0.00% | — | — | −1,595 (−100.0%) | June 30, 2026 |
| 16 | NATIONAL BANK OF CANADA /FI/ | 0.00% | — | — | — | June 30, 2026 |
| 17 | Geode Capital Management, LLC | 0.00% | — | — | −8,363 (−100.0%) | June 30, 2026 |
| 18 | LPL Financial Corp | 0.00% | — | — | −1,497 (−100.0%) | June 30, 2026 |
| 19 | Virtu Financial LLC | 0.00% | — | — | −614 (−100.0%) | June 30, 2026 |
| 20 | Advisor Group Holdings, Inc. | 0.00% | — | — | −10 (−100.0%) | March 31, 2026 |
Value at the latest close. Change = shares bought or sold in the latest quarterly filing (13F). In the top 20, 5 holders added 48K shares and 10 cut 15K.
AMIX top mutual fund and ETF holders
3 largest| # | Holder | % of shares | Shares | Value | Change | Reported |
|---|---|---|---|---|---|---|
| 1 | Fidelity Nasdaq Composite Index | 1.78% | 35K | $99,302 | +34,904 (0.0%) | August 31, 2026 |
| 2 | Fidelity Extended Market Index | 0.69% | 14K | $38,729 | +11,073 (+435.9%) | August 31, 2026 |
| 3 | Fidelity Total Market Index | <0.01% | 49 | $139 | — | August 31, 2026 |
Funds report holdings monthly or quarterly; dates differ by fund.
AMIX shares outstanding
Year-end shares outstanding, adjusted for splits.
Who owns AMIX
Institutional investors own 2.6% of Autonomix Medical's shares and insiders 5.73%. The largest holder is Mariner Wealth Advisors LLC with 2.56% of the shares (50K), as of June 30, 2026. Among the top 20 institutions, 5 added shares and 10 reduced their stake in the latest filings. Short interest is 1.45% of the float, or 0.22 days of average trading volume. The share count rose 854.1% since 2022.
Related: AMIX analyst forecast, AMIX key metrics. See the AMIX stock overview for the latest quote and news.
AMIX ownership FAQ
Who owns the most Autonomix Medical stock?
The largest shareholders of Autonomix Medical are Mariner Wealth Advisors LLC (2.56%), Allied Private Wealth LLC (0.02%), Tower Research Capital LLC (0.02%), PNC Financial Services Group Inc (<0.01%), Investors Research Corporation (<0.01%).
What percentage of Autonomix Medical is owned by institutions?
Institutions hold 2.6% of Autonomix Medical's shares outstanding; insiders hold 5.73%.
Which funds own Autonomix Medical?
The largest fund holders of Autonomix Medical are Fidelity Nasdaq Composite Index (1.78%), Fidelity Extended Market Index (0.69%), Fidelity Total Market Index (<0.01%).
What is Autonomix Medical's short interest?
27K shares of Autonomix Medical were sold short, 1.45% of the float; at the average daily volume it would take 0.22 days to cover.
How many shares of Autonomix Medical are outstanding?
Autonomix Medical has 2.0M shares outstanding, of which 918K are in the public float.