Delisting risk
Longeveron
Develops donor-derived cell therapy for pediatric cardiac and aging-related diseases.
$6.72
After-hours close0.00 (0.00%)
At close$6.72(−1.18%)
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Breakdown13F · Form 4
Institutions 7.49%227.9K sharesInsiders 25.59%778.7K sharesOther 66.92%2.04M shares
Shares outstanding 3.04M · Float —
Float — provider float is below the insider stake.
The provider's float is smaller than the insider stake it should exclude, so it is not shown.
Institutions13F, as of Mar 31, 2026
30 holders · 227.9K shares · 11 new positions · 14 increased · 3 reduced · 10 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Vanguard Capital Management LLC | 54.2K | 1.78% | +54.2Knew | May 15, 2026 |
| Millennium Management LLC | 44.7K | 1.47% | +44.7Knew | May 15, 2026 |
| BlackRock, Inc. | 22.4K | 0.74% | +21.4K | May 13, 2026 |
| Geode Capital Management, LLC | 20.4K | 0.67% | +6.2K | May 15, 2026 |
| Adar1 Capital Management, LLC | 20.0K | 0.66% | +20.0Knew | May 18, 2026 |
| Jane Street Group, LLC | 18.6K | 0.61% | +18.6K | May 12, 2026 |
| HRT Financial LP | 11.9K | 0.39% | +10.7K | May 14, 2026 |
| Beacon Pointe Advisors, LLC | 10.0K | 0.33% | +10.0Knew | May 15, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Mitchell P. Kopin | 9.99% | 13G | Aug 15, 2025 ↗ | |
| Janus Henderson Group PLC | 5.90% | 13G | May 15, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Joshua Hare | director, 10 percent owner, officer: Chief Scientific Officer | 293.0K | 9.63% | Aug 21, 2026 |
| Paul T. Lehr | officer: General Counsel, Secretary | 86.1K | 2.83% | Aug 21, 2026 |
| Stephen H. Willard | officer: Chief Executive Officer | 77.2K | 2.54% | Jul 6, 2026 |
| Nataliya Agafonova | officer: Chief Medical Officer | 71.7K | 2.36% | Aug 21, 2026 |
| Devin Blass | officer: CTO & SVP of CMC | 71.2K | 2.34% | Aug 21, 2026 |
| Lisa Locklear | officer: Chief Financial Officer | 44.3K | 1.46% | Jul 6, 2026 |
| Mohamed Wa'el Ahmed Hashad | officer: Chief Executive Officer | 42.1K | 1.38% | Jul 17, 2025 |
| Rock Soffer | director | 26.2K | 0.86% | Aug 21, 2026 |
| James Nathaniel Powell | officer: Chief Executive Officer | 12.6K | 0.41% | Jan 6, 2026 |
| Marie Washburn | officer: Chief Financial Officer | 10.1K | 0.33% | Jul 21, 2026 |
17 people have not refiled in the last 18 months (162.4K 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.