Fortress Biotech
FBIO · NASDAQ
$1.94+$0.07 (+3.74%)TodayMarket closed ·
Prev close $1.87
Who owns FBIO
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 45.3% of FBIO’s shares.
- Rosenwald (Lindsay A)13.8%
- Highbridge Capital Management, LLC8.2%
- Weiss (Michael S)6.9%
- Millennium Management LLC5.4%
- Next 6 largest institutions11.0%
- All other shareholders54.7%
| Holder | Shares | % of shares |
|---|---|---|
| Rosenwald (Lindsay A) | 4.59M | 13.81% |
| Highbridge Capital Management, LLC | 2.73M | 8.23% |
| Weiss (Michael S) | 2.28M | 6.85% |
| Millennium Management LLC | 1.78M | 5.35% |
| Vanguard Capital Management, LLC | 1.04M | 3.12% |
| Opaleye Management Inc. | 890.00K | 2.68% |
| Mackenzie Financial Corporation | 555.68K | 1.67% |
| GSA Capital Partners LLP | 458.47K | 1.38% |
| Jin (David) | 421.57K | 1.27% |
| Shikiar Asset Management, Inc. | 305.47K | 0.92% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 697.80K | 2.10% |
| Vanguard Extended Market Index Fund | 311.10K | 0.94% |
| Mackenzie US Quantitative Small Cap Fund | 159.79K | 0.48% |
| Bridgeway Ultra-Small Company Fund | 152.37K | 0.46% |
| Fidelity Extended Market Index Fund | 143.18K | 0.43% |
Insider trades
Form 4 filings by officers, directors and large holders
Insiders made no open-market buys or sales of FBIO in the last 6 months.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Jin David | Award | 1.19K | $2.16K |
| Jin David | Award | 400.00K | — |
Short interest
Settled Sep 30, 2026
- Shares short
- 4.90M
- Days to cover
- 18.38
- % of shares outstanding
- 14.74%
- Average daily volume
- 266.43K
- Change since last report
- −4.1%
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