Firefly Neuroscience
FDA-cleared EEG assessment systems and brain-function reports for clinicians and drug developers.
$1.08
After-hours close−0.01 (−0.92%)
At close$1.09(+0.93%)
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Breakdown13F · Form 4
Institutions 8.14%1.20M sharesInsiders 7.74%1.14M sharesOther 84.12%12.44M shares
Shares outstanding 14.79M · Float 13.38M · 90.5% free float
Institutions13F, as of Mar 31, 2026
22 holders · 1.20M shares · 10 new positions · 17 increased · 1 reduced · 3 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Jane Street Group, LLC | 180.2K | 1.22% | +119.9K | May 12, 2026 |
| Schonfeld Strategic Advisors LLC | 177.2K | 1.20% | +177.2Knew | May 15, 2026 |
| BlackRock, Inc. | 169.4K | 1.14% | +83.1K | May 13, 2026 |
| Geode Capital Management, LLC | 156.3K | 1.06% | +43.0K | May 15, 2026 |
| UBS Group AG | 132.2K | 0.89% | +107.5K | May 5, 2026 |
| Vanguard Capital Management LLC | 111.9K | 0.76% | +111.9Knew | May 15, 2026 |
| Vanguard Fiduciary Trust Co | 51.0K | 0.34% | +51.0Knew | May 8, 2026 |
| State Street Corp | 46.3K | 0.31% | +22.9K | May 15, 2026 |
Beneficial owners13D/G · 5% or more, as filed
No 13D/G filer at 5% or more on record.
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Windsor Private Capital LP | 10 percent owner | 1.24M | 8.36% | Oct 22, 2025 |
| Gregory Lipschitz | director, officer: Interim CEO | 933.9K | 6.31% | Mar 13, 2026 |
| Arun Swarup Menawat | director, other: Chairman | 99.4K | 0.67% | Mar 12, 2025 |
| David DeCaprio | director, officer: President and COO | 77.9K | 0.53% | Mar 12, 2026 |
| Gil Issachar | officer: Chief Technology Officer | 33.5K | 0.23% | Mar 19, 2025 |
1 ten-percent owner holds 1.24M shares by Form 4, outside the officers-and-directors figure above · 1 person has not refiled in the last 18 months (557.9K shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Oct 22, 2025 | Windsor Private Capital LP10 percent owner | Sale | 78,031 | $2.07 | 1,236,773 |
| Oct 21, 2025 | Windsor Private Capital LP10 percent owner | Sale | 19,222 | $2.40 | 1,314,804 |
| Oct 20, 2025 | Windsor Private Capital LP10 percent owner | Sale | 33,500 | $2.46 | 1,334,026 |
| Oct 17, 2025 | Windsor Private Capital LP10 percent owner | Sale | 45,036 | $2.55 | 1,367,526 |
| Oct 16, 2025 | Windsor Private Capital LP10 percent owner | Sale | 40,139 | $2.65 | 1,412,562 |
| Oct 15, 2025 | Windsor Private Capital LP10 percent owner | Sale | 17,500 | $2.74 | 1,452,701 |
| Oct 14, 2025 | Windsor Private Capital LP10 percent owner | Sale | 29,500 | $2.74 | 1,470,201 |
| Oct 13, 2025 | Windsor Private Capital LP10 percent owner | Sale | 32,136 | $2.65 | 1,499,701 |
| Oct 10, 2025 | Windsor Private Capital LP10 percent owner | Sale | 74,810 | $2.70 | 1,531,837 |
| Oct 9, 2025 | Windsor Private Capital LP10 percent owner | Sale | 30,126 | $2.94 | 1,606,647 |
CongressHouse and Senate disclosures
Not reported.