As of March 23, 2026, the three largest insider holders of FBRX are David W Gryska (Director, 148.51K shares), Steven Kornfeld (Director, 99.01K shares), Hubert C Chen (See Remarks, 93.41K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| David W Gryska | 148,514 | 0 | 02 Aug, 2023 | |
| Steven Kornfeld | 99,009 | 0 | 02 Aug, 2023 | |
| Hubert C Chen | See Remarks | 93,405 | 0 | 03 Jan, 2024 |
| Paul A. Wagner | See Remarks | 83,178 | 0 | 02 Jan, 2026 |
| Donald Allen Williams | 59,405 | 0 | 02 Aug, 2023 | |
| Antony A Riley | Chief Financial Officer | 41,741 | 0 | 02 Jan, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 12 Jan, 2026 | Antony A Riley | Stock Option (right to buy) | A | 90,000 | $0.00 | 90,000 | D | A |
| 12 Jan, 2026 | Paul A. Wagner | Stock Option (right to buy) | A | 270,000 | $0.00 | 270,000 | D | A |
| 12 Jan, 2026 | Paul A. Wagner | Restricted Stock Units | A | 180,000 | $0.00 | 180,000 | D | A |
| 12 Jan, 2026 | Antony A Riley | Restricted Stock Units | A | 60,000 | $0.00 | 60,000 | D | A |
| 30 Dec, 2025 | Antony A Riley | Common Stock | A | 9,680 | $26.33 | 41,520 | D | P |
| 01 Jan, 2026 | Paul A. Wagner | Common Stock | A | 1,250 | $0.00 | 83,342 | D | M |
| 01 Jan, 2026 | Antony A Riley | Common Stock | A | 375 | $0.00 | 41,895 | D | M |
| 01 Jan, 2026 | Paul A. Wagner | Common Stock | D | 164 | $27.27 | 83,178 | D | F |
| 01 Jan, 2026 | Antony A Riley | Common Stock | D | 154 | $27.27 | 41,741 | D | F |
| 01 Jan, 2026 | Paul A. Wagner | Restricted Stock Units | D | 1,250 | $0.00 | 5,000 | D | M |
| 01 Jan, 2026 | Antony A Riley | Restricted Stock Units | D | 375 | $0.00 | 1,500 | D | M |
| 01 Oct, 2025 | Antony A Riley | Common Stock | A | 375 | $0.00 | 31,974 | D | M |
| 01 Oct, 2025 | Paul A. Wagner | Common Stock | A | 1,250 | $0.00 | 82,190 | D | M |
| 01 Oct, 2025 | Paul A. Wagner | Common Stock | D | 98 | $14.52 | 82,092 | D | F |
| 01 Oct, 2025 | Antony A Riley | Common Stock | D | 134 | $14.52 | 31,840 | D | F |
| 01 Oct, 2025 | Paul A. Wagner | Restricted Stock Units | D | 1,250 | $0.00 | 6,250 | D | M |
| 01 Oct, 2025 | Antony A Riley | Restricted Stock Units | D | 375 | $0.00 | 1,875 | D | M |
| 01 Jul, 2025 | Antony A Riley | Common Stock | A | 375 | $0.00 | 31,733 | D | M |
| 01 Jul, 2025 | Paul A. Wagner | Common Stock | A | 1,250 | $0.00 | 81,038 | D | M |
| 01 Jul, 2025 | Paul A. Wagner | Common Stock | D | 98 | $12.44 | 80,940 | D | F |