FBIO's three largest insider shareholders as of September 29, 2026 are Lindsay A Md Rosenwald (President, Ceo Chairman, 4.59Mn shares), Lindsay A Md Rosenwald (President, Ceo Chairman, 2.89Mn shares), Michael S Weiss (Executive Vice Chairman, 2.28Mn shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Lindsay A Md Rosenwald | President, Ceo Chairman | 7,608,246 | 0 | 7,608,246 | 53.4% | 20 Mar, 2026 |
| 2 | Michael S Weiss | Executive Vice Chairman | 3,623,547 | 0 | 3,623,547 | 25.4% | 20 Mar, 2026 |
| 3 | David Jin | Chief Financial Officer | 1,890,339 | 0 | 1,890,339 | 13.3% | 24 Jun, 2026 |
| 4 | J Jay Lobell | Director | 308,089 | 0 | 308,089 | 2.2% | 05 Jan, 2026 |
| 5 | Jimmie Harvey | Director | 216,703 | 0 | 216,703 | 1.5% | 05 Jan, 2026 |
| 6 | Dov Klein | Director | 183,505 | 0 | 183,505 | 1.3% | 05 Jan, 2026 |
| 7 | Malcolm Hoenlein | Director | 154,789 | 0 | 154,789 | 1.1% | 05 Jan, 2026 |
| 8 | Kevin Lorenz | Director | 125,313 | 0 | 125,313 | 0.9% | 05 Jan, 2026 |
| 9 | Lucy Lu | Director | 73,163 | 0 | 73,163 | 0.5% | 03 Jan, 2025 |
| 10 | Eric K Rowinsky | Director | 68,797 | 0 | 68,797 | 0.5% | 03 Jan, 2024 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 22 Jun, 2026 | David Jin | Chief Financial Officer | Acquired A | 400,000 | $0.00 | $0 | 1,651,571 | Direct |
| 01 Apr, 2026 | David Jin | Chief Financial Officer | Acquired A | 2,967 | $2.18 | $6.46K | 1,251,571 | Direct |
| 18 Mar, 2026 | Michael S Weiss | Executive Vice Chairman | Acquired A | 475,424 | $0.00 | $0 | 2,276,562 | Direct |
| 18 Mar, 2026 | Lindsay A Md Rosenwald | President, Ceo Chairman | Acquired A | 475,424 | $0.00 | $0 | 4,586,841 | Direct |
| 01 Jan, 2026 | Kevin Lorenz | Director | Acquired A | 27,322 | $0.00 | $0 | 101,009 | Direct |
| 01 Jan, 2026 | Malcolm Hoenlein | Director | Acquired A | 27,322 | $0.00 | $0 | 115,747 | Direct |
| 01 Jan, 2026 | Jimmie Harvey | Director | Acquired A | 27,322 | $0.00 | $0 | 146,704 | Direct |
| 01 Jan, 2026 | J Jay Lobell | Director | Acquired A | 27,322 | $0.00 | $0 | 192,397 | Direct |
| 01 Jan, 2026 | Dov Klein | Director | Acquired A | 27,322 | $0.00 | $0 | 130,105 | Direct |
| 01 Oct, 2025 | David Jin | Chief Financial Officer | Acquired A | 2,711 | $1.31 | $3.55K | 1,248,604 | Direct |
| 01 Apr, 2025 | David Jin | Chief Financial Officer | Acquired A | 5,000 | $1.22 | $6.08K | 1,245,893 | Direct |
| 01 Jan, 2025 | Lindsay A Md Rosenwald | President, Ceo Chairman | Acquired A | 454,153 | $0.00 | $0 | 4,111,417 | Direct |
| 01 Jan, 2025 | Kevin Lorenz | Director | Acquired A | 49,383 | $0.00 | $0 | 73,687 | Direct |
| 01 Jan, 2025 | Jimmie Harvey | Director | Acquired A | 49,383 | $0.00 | $0 | 119,382 | Direct |
| 01 Jan, 2025 | Lucy Lu | Director | Acquired A | 49,383 | $0.00 | $0 | 61,273 | Direct |
| 01 Jan, 2025 | Dov Klein | Director | Acquired A | 49,383 | $0.00 | $0 | 102,783 | Direct |
| 01 Jan, 2025 | Michael S Weiss | Executive Vice Chairman | Acquired A | 454,153 | $0.00 | $0 | 1,801,138 | Direct |
| 01 Jan, 2025 | Malcolm Hoenlein | Director | Acquired A | 49,383 | $0.00 | $0 | 88,425 | Direct |
| 01 Jan, 2025 | J Jay Lobell | Director | Acquired A | 49,383 | $0.00 | $0 | 165,075 | Direct |
| 19 Dec, 2024 | David Jin | Chief Financial Officer | Acquired A | 1,000,000 | $0.00 | $0 | 1,240,893 | Direct |