SEC Form 4 · Updated Daily
FBIO
— FORTRESS BIOTECH, INC. OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| ROSENWALD LINDSAY A MD | 10%+ Owner · Director · Officer | 4,586,841 | 2026-03-18 | A |
| WEISS MICHAEL S | 10%+ Owner · Director | 2,276,562 | 2026-03-18 | A |
| ELLIOTT INTERNATIONAL, L.P. | 10%+ Owner | 1,654,898 | 2012-06-22 | — |
| Jin David | Officer | 1,652,761 | 2026-10-01 | A |
| ELLIOTT ASSOCIATES, L.P. | 10%+ Owner | 1,284,053 | 2012-06-22 | — |
| Avgerinos George | Officer | 655,170 | 2018-12-11 | A |
| LOBELL J JAY | Director | 192,397 | 2026-01-01 | A |
| Hunter Robyn | Director | 163,877 | 2021-09-21 | S |
| Harvey Jimmie | Director | 146,704 | 2026-01-01 | A |
| Klein Dov | Director | 130,105 | 2026-01-01 | A |
| Hoenlein Malcolm | Director | 115,747 | 2026-01-01 | A |
| Lorenz Kevin | Director | 101,009 | 2026-01-01 | A |
| Rowinsky Eric K | Director | 68,797 | 2024-01-01 | A |
| Lu Lucy | Director | 61,273 | 2025-01-01 | A |
| BARRETT DAVID JONATHAN | Director | 50,000 | 2014-02-20 | A |
| HORGAN KEVIN | Officer | 47,566 | 2014-04-22 | M |
| COOPER GLENN L MD | Director | 43,811 | 2012-11-30 | P |
| Weisman Harlan F | Director · Officer | 30,000 | 2013-06-20 | P |
| SANDAGE BOBBY W PHD | Director · Officer | 22,311 | 2013-04-05 | G |
| Hehenberger Karin M. | Officer | 20,925 | 2012-06-22 | P |
| Beerman Noah D | Officer | 15,000 | 2013-05-31 | P |
| RITTER DALE | Officer | 11,503 | 2013-05-31 | P |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-10-01 | Jin David | Grant / award | 1,190 | $1.82 | 1,652,761 |
| 2026-06-22 | Jin David | Grant / award | 400,000 | $0.00 | 1,651,571 |
| 2026-04-01 | Jin David | Grant / award | 2,967 | $2.18 | 1,251,571 |
| 2026-03-18 | WEISS MICHAEL S | Grant / award | 475,424 | $0.00 | 2,276,562 |
| 2026-03-18 | ROSENWALD LINDSAY A MD | Grant / award | 475,424 | $0.00 | 4,586,841 |
| 2026-01-01 | LOBELL J JAY | Grant / award | 27,322 | $0.00 | 192,397 |
| 2026-01-01 | Hoenlein Malcolm | Grant / award | 27,322 | $0.00 | 115,747 |
| 2026-01-01 | Lorenz Kevin | Grant / award | 27,322 | $0.00 | 101,009 |
| 2026-01-01 | Harvey Jimmie | Grant / award | 27,322 | $0.00 | 146,704 |
| 2026-01-01 | Klein Dov | Grant / award | 27,322 | $0.00 | 130,105 |
| 2025-10-01 | Jin David | Grant / award | 2,711 | $1.31 | 1,248,604 |
| 2025-04-01 | Jin David | Grant / award | 5,000 | $1.22 | 1,245,893 |
| 2025-01-01 | ROSENWALD LINDSAY A MD | Grant / award | 454,153 | $0.00 | 4,111,417 |
| 2025-01-01 | WEISS MICHAEL S | Grant / award | 454,153 | $0.00 | 1,801,138 |
| 2025-01-01 | Hoenlein Malcolm | Grant / award | 49,383 | $0.00 | 88,425 |
| 2025-01-01 | Lorenz Kevin | Grant / award | 49,383 | $0.00 | 73,687 |
| 2025-01-01 | Harvey Jimmie | Grant / award | 49,383 | $0.00 | 119,382 |
| 2025-01-01 | Lu Lucy | Grant / award | 49,383 | $0.00 | 61,273 |
| 2025-01-01 | Klein Dov | Grant / award | 49,383 | $0.00 | 102,783 |
| 2025-01-01 | LOBELL J JAY | Grant / award | 49,383 | $0.00 | 165,075 |
| 2024-12-19 | Jin David | Grant / award | 1,000,000 | $0.00 | 1,240,893 |
| 2024-10-01 | Jin David | Grant / award | 2,625 | $1.23 | 240,893 |
| 2024-09-23 | ROSENWALD LINDSAY A MD | Open-market buy (derivative) | 763,359 | $0.13 | 763,359 |
| 2024-09-23 | ROSENWALD LINDSAY A MD | Open-market buy | 763,359 | $1.84 | 3,657,264 |
| 2024-07-11 | ROSENWALD LINDSAY A MD | Open-market buy | 5,000 | $7.48 | 127,500 |
| 2024-07-10 | Jin David | Open-market buy | 500 | $7.50 | 500 |
| 2024-07-09 | ROSENWALD LINDSAY A MD | Open-market buy | 5,000 | $7.39 | 122,500 |
| 2024-07-08 | ROSENWALD LINDSAY A MD | Open-market buy | 5,000 | $7.35 | 117,500 |
| 2024-06-28 | ROSENWALD LINDSAY A MD | Open-market buy | 20,000 | $1.64 | 2,893,905 |
| 2024-05-20 | Klein Dov | Open-market sale | 10,000 | $1.89 | 53,400 |
| 2024-05-16 | ROSENWALD LINDSAY A MD | Open-market buy | 10,000 | $1.76 | 2,873,905 |
| 2024-04-01 | Jin David | Grant / award | 2,352 | $1.70 | 238,268 |
| 2024-01-05 | ROSENWALD LINDSAY A MD | Open-market buy | 50,000 | $2.38 | 2,863,905 |
| 2024-01-01 | Lu Lucy | Grant / award | 3,333 | $0.00 | 11,890 |
| 2024-01-01 | Klein Dov | Grant / award | 6,666 | $0.00 | 63,400 |
| 2024-01-01 | Hoenlein Malcolm | Grant / award | 3,333 | $0.00 | 39,042 |
| 2024-01-01 | LOBELL J JAY | Grant / award | 6,666 | $0.00 | 115,692 |
| 2024-01-01 | WEISS MICHAEL S | Grant / award | 216,465 | $0.00 | 1,346,985 |
| 2024-01-01 | Rowinsky Eric K | Grant / award | 6,666 | $0.00 | 68,797 |
| 2024-01-01 | Lorenz Kevin | Grant / award | 3,333 | $0.00 | 24,304 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.