FORTRESS BIOTECH INC FBIO
COM NEW · Common Stock · CUSIP 34960Q307
- SectorHealth care
- IndustryPharmaceutical Preparations
- HeadquartersBay Harbor Islands, FL
- Founded2006
- Websitefortressbiotech.com
- FilingsSEC EDGAR
* Summed across managers. Shares that two managers' reports both contain – a subsidiary's holdings that its parent's report includes too, or a sub-adviser's in its client's – are counted once ($76.5k this quarter). Holder counts are more reliable. Implied quarter-end price ≈ $3.06. Options: 3 managers hold calls ($260.4k notional), 5 hold puts ($1.6m).
Trends to Q2 2026
Institutional holders
Managers reporting a position, each quarter
Numbers
| Quarter | Holders |
|---|---|
| Q3 2023 | 2 |
| Q4 2023 | 43 |
| Q1 2024 | 40 |
| Q2 2024 | 51 |
| Q3 2024 | 51 |
| Q4 2024 | 54 |
| Q1 2025 | 47 |
| Q2 2025 | 50 |
| Q3 2025 | 56 |
| Q4 2025 | 52 |
| Q1 2026 | 52 |
| Q2 2026 | 55 |
Buyers vs sellers
Managers adding to or starting a position, vs cutting or selling out
Numbers
| Quarter | Bought or added | Cut or sold out |
|---|---|---|
| Q3 2024 | 27 | 17 |
| Q4 2024 | 29 | 20 |
| Q1 2025 | 21 | 19 |
| Q2 2025 | 26 | 20 |
| Q3 2025 | 36 | 26 |
| Q4 2025 | 28 | 30 |
| Q1 2026 | 21 | 28 |
| Q2 2026 | 26 | 28 |
Calls vs puts
Options held, notional value, last 4 quarters. P/C = puts ÷ calls
Numbers
| Quarter | Calls | Puts | P/C |
|---|---|---|---|
| Q3 2025 | $2.3m | $1.6m | 0.73 |
| Q4 2025 | $1.2m | $2.1m | 1.77 |
| Q1 2026 | $584.8k | $1.2m | 1.98 |
| Q2 2026 | $260.4k | $1.6m | 6.05 |
Biggest buyers
| MACKENZIE FINANCIAL CORP | New | +555.7k |
| GSA CAPITAL PARTNERS LLP | Added | +204.3k |
| GOLDMAN SACHS GROUP INC | New | +96.4k |
| VANGUARD CAPITAL MANAGEMENT LLC | Added | +71.2k |
| Integrated Quantitative Investments LLC | New | +68.7k |
| ACADIAN ASSET MANAGEMENT LLC | Added | +66.9k |
| Integrated Wealth Concepts LLC | Added | +45.2k |
| PRELUDE CAPITAL MANAGEMENT, LLC | New | +41.5k |
| UBS Group AG | Added | +37.9k |
| BlackRock, Inc. | Added | +27.7k |
Biggest sellers
| NORTHERN TRUST CORP | Reduced | -166.4k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Reduced | -163.7k |
| Opaleye Management Inc. | Reduced | -152.0k |
| CITADEL ADVISORS LLC | Reduced | -103.2k |
| XTX Topco Ltd | Sold out | -76.1k |
| Sculptor Capital LP | Sold out | -52.0k |
| SIMPLEX TRADING, LLC | Reduced | -43.8k |
| TWO SIGMA SECURITIES, LLC | Sold out | -24.7k |
| Summit Financial, LLC | Sold out | -20.7k |
| JANE STREET GROUP, LLC | Reduced | -15.5k |
Biggest calls
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $140.1k45.8k shares |
| GROUP ONE TRADING LLC | Reduced | $115.4k37.7k shares |
| SIMPLEX TRADING, LLC | Reduced | $4.9k1.6k shares |
Biggest puts
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | Added | $1.1m356.0k shares |
| CITADEL ADVISORS LLC | Added | $178.7k58.4k shares |
| SIMPLEX TRADING, LLC | Reduced | $115.7k37.8k shares |
| GROUP ONE TRADING LLC | Added | $97.9k32.0k shares |
| JANE STREET GROUP, LLC | New | $93.0k30.4k shares |
Options at notional value: the value of the shares the contracts control, as filers report them, not what the options cost. Not included in the holders, shares or buying above.
Major shareholders (over 5%)
Anyone who owns more than 5% of a class of the company's shares has to say so: on Schedule 13D if they may try to influence or control the company, on 13G if they're a passive investor, and update it as the stake changes. Each holder's latest filing, from 19 Dec 2024 on; percentages are of the share class, as the holder worked them out.
| Holder | Stake |
|---|---|
ROSENWALD LINDSAY A MD
13D · may seek influence
filed 2026-03-20
Stated purposeThe Reporting Person was granted the shares of Common Stock on each of January 1, 2025 and March 18, 2026 pursuant to the LTIP and Award Agreement and upon the determination that the Reporting Person had achieved 100% of the relevant goals and objectives established by the Compensation Committee of the Issuer's Board. The Reporting Person does not have any present plans or proposals that relate to or would result in: (i) the acquisition by any person of additional securities of Issuer, or the disposition of securities of Issuer; (ii) an extraordinary corporate transaction, such as a merger, reorganization or liquidation, involving Issuer or any of Issuer's subsidiaries; (iii) a sale or transfer of a material amount of assets of Issuer or any of Issuer's subsidiaries; (iv) any change in the… Full filing |
20.7% |
| HIGHBRIDGE CAPITAL MANAGEMENT LLC 13G · institution filed 2026-05-15 | 7.8% |
| INTEGRATED CORE STRATEGIES (US) LLC 13G · passive investor new · filed 2026-09-01 | 5.3% |
Insider purchases and sales since 1 Apr 2026
Shares bought or sold by the company's own officers, directors and 10% owners, in the open market or privately, as they reported to the SEC on Form 4 (due within two business days of the trade). Grants, option exercises, shares withheld for tax and gifts aren't included.
None reported since 1 Apr 2026.
Holders, Q2 2026
| Manager | Shares | Change |
|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC 0.00% of their portfolio | 1.0m $3.2m | Added +71.2k |
| Opaleye Management Inc. 0.25% of their portfolio | 890.0k $2.7m | Reduced -152.0k |
| MACKENZIE FINANCIAL CORP 0.00% of their portfolio | 555.7k $1.7m | New |
| GSA CAPITAL PARTNERS LLP 0.09% of their portfolio | 458.5k $1.4m | Added +204.3k |
| SHIKIAR ASSET MANAGEMENT INC 0.24% of their portfolio | 305.5k $935.0k | Unchanged |
| GEODE CAPITAL MANAGEMENT, LLC 0.00% of their portfolio | 300.5k $919.9k | Added +10.3k |
| BlackRock, Inc. 0.00% of their portfolio | 224.8k $687.8k | Added +27.7k |
| TWO SIGMA INVESTMENTS, LP 0.00% of their portfolio | 213.8k $654.2k | Added +17.0k |
| BRIDGEWAY CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 177.4k $542.7k | Reduced -5.0k |
| VANGUARD FIDUCIARY TRUST CO 0.00% of their portfolio | 166.4k $509.1k | Added +23.8k |
| HB Wealth Management, LLC 0.00% of their portfolio | 116.7k $357.0k | Reduced -3.5k |
| Kestra Advisory Services, LLC 0.00% of their portfolio | 116.2k $355.7k | Reduced -13.6k |
| ACADIAN ASSET MANAGEMENT LLC 0.00% of their portfolio | 107.3k $327.0k | Added +66.9k |
| STATE STREET CORP 0.00% of their portfolio | 101.6k $310.9k | Unchanged |
| GOLDMAN SACHS GROUP INC 0.00% of their portfolio | 96.4k $294.9k | New |
| Integrated Wealth Concepts LLC 0.00% of their portfolio | 90.4k $276.6k | Added +45.2k |
| RENAISSANCE TECHNOLOGIES LLC 0.00% of their portfolio | 86.4k $264.4k | Reduced -13.2k |
| CITADEL ADVISORS LLC 0.00% of their portfolio | 77.1k $235.8k | Reduced -103.2k |
| Integrated Quantitative Investments LLC 0.03% of their portfolio | 68.7k $210.2k | New |
| PANAGORA ASSET MANAGEMENT INC 0.00% of their portfolio | 66.0k $202.0k | Added +9.4k |
| NORTHERN TRUST CORP 0.00% of their portfolio | 63.6k $194.7k | Reduced -166.4k |
| 180 WEALTH ADVISORS, LLC 0.02% of their portfolio | 61.6k $188.5k | Reduced -2.2k |
| UBS Group AG 0.00% of their portfolio | 52.3k $160.2k | Added +37.9k |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP 0.00% of their portfolio | 47.0k $143.8k | Reduced -163.7k |
| PRELUDE CAPITAL MANAGEMENT, LLC 0.01% of their portfolio | 41.5k $127.0k | New |
| PFG Investments, LLC 0.00% of their portfolio | 36.5k $111.7k | Unchanged |
| CHOREO, LLC 0.00% of their portfolio | 36.2k $110.9k | Unchanged |
| JANE STREET GROUP, LLC 0.00% of their portfolio | 25.4k $77.8k | Reduced -15.5k |
| Empowered Funds, LLC 0.00% of their portfolio | 25.0k $76.5k | New |
| Virtu Financial LLC 0.00% of their portfolio | 24.7k $76.0k | New |
| Squarepoint Ops LLC 0.00% of their portfolio | 15.4k $47.1k | New |
| Corient Private Wealth LP 0.00% of their portfolio | 15.0k $45.8k | Unchanged |
| NewEdge Advisors, LLC 0.00% of their portfolio | 14.9k $45.7k | Added +2.0k |
| Abacus Planning Group, Inc. 0.01% of their portfolio | 14.5k $44.5k | Unchanged |
| SIMPLEX TRADING, LLC 0.00% of their portfolio | 14.5k $44.4k | Reduced -43.8k |
| Man Group plc 0.00% of their portfolio | 13.4k $40.9k | New |
| CARLSON FINANCIAL, INC. 0.02% of their portfolio | 12.7k $38.7k | Reduced -350 |
| Vanguard Global Advisers, LLC 0.00% of their portfolio | 12.6k $38.5k | Unchanged |
| Weaver Consulting Group 0.01% of their portfolio | 10.4k $31.7k | Reduced -1.0k |
| Forum Financial Management, LP 0.00% of their portfolio | 10.0k $30.6k | Unchanged |
| OSAIC HOLDINGS, INC. 0.00% of their portfolio | 9.1k $27.7k | Added +4.1k |
| WELLS FARGO & COMPANY/MN 0.00% of their portfolio | 5.0k $15.3k | Reduced -5.6k |
| Rockefeller Capital Management L.P. 0.00% of their portfolio | 4.8k $14.7k | Unchanged |
| Arax Advisory Partners 0.00% of their portfolio | 4.1k $12.5k | New |
| SBI Securities Co., Ltd. 0.00% of their portfolio | 3.6k $11.2k | New |
| MORGAN STANLEY 0.00% of their portfolio | 3.5k $10.7k | Reduced -384 |
| Tower Research Capital LLC (TRC) 0.00% of their portfolio | 1.4k $4.3k | Reduced -9.1k |
| BARCLAYS PLC 0.00% of their portfolio | 994 $3.0k | New |
| ROYAL BANK OF CANADA 0.00% of their portfolio | 725 $2.0k | Added +38 |
| Truvestments Capital LLC 0.00% of their portfolio | 702 $2.1k | New |
| JPMORGAN CHASE & CO 0.00% of their portfolio | 339 $1.0k | Unchanged |
| Caitong International Asset Management Co., Ltd 0.00% of their portfolio | 44 $135 | Reduced -169 |
| Larson Financial Group LLC 0.00% of their portfolio | 37 $113 | Reduced -30 |
| NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO 0.00% of their portfolio | 33 $101 | Unchanged |
| Axiom Investment Management LLC 0.00% of their portfolio | 17 $52 | New |