Fortress Biotech
Sources, funds and advances drug assets through a portfolio-company network.
$2.76
After-hours close−0.01 (−0.47%)
At close$2.77(−1.07%)
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Breakdown13F · Form 4
Institutions 16.13%5.36M sharesInsiders 27.70%9.20M sharesOther 56.17%18.66M shares
Shares outstanding 33.22M · Float 23.09M · 69.5% free float
Institutions13F, as of Mar 31, 2026
57 holders · 5.36M shares · 12 new positions · 25 increased · 16 reduced · 12 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| Opaleye Management Inc. | 1.04M | 3.14% | −48.0K | May 15, 2026 |
| Vanguard Capital Management LLC | 966.0K | 2.91% | +966.0Knew | May 15, 2026 |
| Shikiar Asset Management Inc | 305.5K | 0.92% | +27.0K | Apr 23, 2026 |
| Geode Capital Management, LLC | 290.3K | 0.87% | +27.8K | May 15, 2026 |
| Gsa Capital Partners LLP | 254.1K | 0.77% | +218.1K | May 8, 2026 |
| Northern Trust Corp | 230.1K | 0.69% | −9.5K | May 14, 2026 |
| Susquehanna International Group, LLP | 210.7K | 0.63% | −19.0K | May 15, 2026 |
| BlackRock, Inc. | 197.1K | 0.59% | −3.5K | May 13, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Lindsay A. Rosenwald, M.D. | 20.70% | 6.92M | 13D | Mar 20, 2026 ↗ |
| Highbridge Capital Management, LLC | 9.00% | 2.73M | 13G | Oct 25, 2024 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Lindsay A. Md Rosenwald | director, 10 percent owner, officer: PRESIDENT, CEO & CHAIRMAN | 4.59M | 13.81% | Mar 20, 2026 |
| Michael S. Weiss | director, officer: Executive Vice Chairman | 2.28M | 6.85% | Mar 20, 2026 |
| David Jin | officer: Chief Financial Officer | 1.65M | 4.97% | Jun 24, 2026 |
| J. Jay Lobell | director | 192.4K | 0.58% | Jan 5, 2026 |
| Jimmie Harvey | director | 146.7K | 0.44% | Jan 5, 2026 |
| Dov Klein | director | 130.1K | 0.39% | Jan 5, 2026 |
| Malcolm Hoenlein | director | 115.7K | 0.35% | Jan 5, 2026 |
| Kevin Lorenz | director | 101.0K | 0.30% | Jan 5, 2026 |
3 ten-percent owners hold 187.9K shares by Form 4, outside the officers-and-directors figure above · 11 people have not refiled in the last 18 months (197.6K 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.