Delisting risk
Jupiter Neurosciences
Develops CNS drug candidates and sells Nugevia longevity supplements.
$3.07
After-hours close−1.09 (−26.11%)
At close$4.16(−15.03%)
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Breakdown13F · Form 4
Institutions 5.24%25.4K sharesInsiders 41.39%200.6K sharesOther 53.37%258.7K shares
Shares outstanding 484.7K · Float 221.2K · 45.7% free float
Institutions13F, as of Mar 31, 2026
10 holders · 25.4K shares · 5 new positions · 7 increased · 1 reduced · 7 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Vestor Capital, LLC | 12.9K | 2.67% | +12.9K | May 21, 2026 |
| Vanguard Capital Management LLC | 4.8K | 0.99% | +4.8Knew | May 15, 2026 |
| Geode Capital Management, LLC | 2.8K | 0.58% | +1.1K | May 15, 2026 |
| Yorkville Advisors Global, LP | 1.7K | 0.35% | −39 | May 13, 2026 |
| Citadel Advisors LLC | 1.4K | 0.28% | +1.4Knew | May 15, 2026 |
| Vanguard Fiduciary Trust Co | 1.2K | 0.24% | +1.2Knew | May 8, 2026 |
| Northern Trust Corp | 338 | 0.07% | 0 | May 14, 2026 |
| Virtu Financial LLC | 181 | 0.04% | +181new | May 14, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Rosén | 39.50% | 13D | Nov 15, 2024 ↗ | |
| Marshall Hayward | 12.50% | 13D | Nov 15, 2024 ↗ | |
| Claes Wahlestedt | 10.90% | 13D | Nov 15, 2024 ↗ | |
| Orca Capital AG | 8.40% | 102.6K | 13G | Aug 28, 2026 ↗ |
| Shaun Brothers | 6.70% | 13D | Nov 15, 2024 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Christer Rosen | director, 10 percent owner, officer: CEO and Chairman | 147.7K | 30.47% | Jul 3, 2025 |
| Marshall A. Hayward | director, officer: Chief Scientific Officer | 39.9K | 8.24% | Jul 13, 2026 |
| Alexander Gustaf Erik Rosen | officer: Chief Administrative Officer | 6.9K | 1.43% | Jul 13, 2026 |
| Alison D. Silva | director, officer: Pres + Chief Business Officer | 1.5K | 0.31% | Jul 3, 2025 |
| Holger Weis | director | 1.3K | 0.27% | Jul 13, 2026 |
| Nicholas H. Hemmerly | director | 1.3K | 0.26% | Jul 13, 2026 |
| Julie B. Kampf | director | 1.1K | 0.23% | Jul 13, 2026 |
| Saleem Elmasri | officer: CFO and Secretary | 883 | 0.18% | Jul 7, 2025 |
1 ten-percent owner holds 36.8K shares by Form 4, outside the officers-and-directors figure above · 1 person has not refiled in the last 18 months (290 shares), so they are not in the figure above
Latest trades
No open-market trades in the last 12 months.
CongressHouse and Senate disclosures
Not reported.