| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| SUVRETTA CAPITAL MANAGEMENT, LLC | Director, 10%+ Owner | 540 MADISON AVENUE, 7TH FLOOR, NEW YORK | Suvretta Capital Management, LLC; By: /s/ Andrew Nathanson, General Counsel & Chief Compliance Officer | 29 Dec 2025 | 0001569064 |
| Cowen Aaron | 10%+ Owner | C/O SUVRETTA CAPITAL MANAGEMENT, LLC, 540 MADISON AVENUE, 7TH FLOOR, NEW YORK | Suvretta Capital Management, LLC; By: /s/ Andrew Nathanson, General Counsel & Chief Compliance Officer | 29 Dec 2025 | 0001869640 |
| Averill Master Fund, Ltd. | Director, 10%+ Owner | C/O SUVRETTA CAPITAL MANAGEMENT, LLC, 540 MADISON AVENUE, 7TH FLOOR, NEW YORK | Suvretta Capital Management, LLC; By: /s/ Andrew Nathanson, General Counsel & Chief Compliance Officer | 29 Dec 2025 | 0001939329 |
| Averill Madison Master Fund, Ltd. | Director, 10%+ Owner | C/O SUVRETTA CAPITAL MANAGEMENT, LLC, 540 MADISON AVENUE, 7TH FLOOR, NEW YORK | Suvretta Capital Management, LLC; By: /s/ Andrew Nathanson, General Counsel & Chief Compliance Officer | 29 Dec 2025 | 0002021243 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | BNTC | Common stock, par value $0.0001 per share | Purchase | $547,410 | +42,600 | +0.44% | $12.85 | 9,620,075 | 23 Dec 2025 | See footnotes | F1, F2 |
| transaction | BNTC | Common stock, par value $0.0001 per share | Purchase | $95,090 | +7,400 | +0.41% | $12.85 | 1,834,053 | 23 Dec 2025 | See footnotes | F1, F3 |
| transaction | BNTC | Common stock, par value $0.0001 per share | Purchase | $187,592 | +14,320 | +0.15% | $13.10 | 9,634,395 | 26 Dec 2025 | See footnotes | F1, F4 |
| transaction | BNTC | Common stock, par value $0.0001 per share | Purchase | $32,960 | +2,516 | +0.14% | $13.10 | 1,836,569 | 26 Dec 2025 | See footnotes | F1, F5 |
| transaction | BNTC | Common stock, par value $0.0001 per share | Purchase | $884,352 | +65,800 | +0.68% | $13.44 | 9,700,195 | 29 Dec 2025 | See footnotes | F1, F6 |
| transaction | BNTC | Common stock, par value $0.0001 per share | Purchase | $155,729 | +11,587 | +0.63% | $13.44 | 1,848,156 | 29 Dec 2025 | See footnotes | F1, F7 |
| Id | Content |
|---|---|
| F1 | Notes are included on Exhibit 99.1. |
| F2 | Notes are included on Exhibit 99.1. |
| F3 | Notes are included on Exhibit 99.1. |
| F4 | Notes are included on Exhibit 99.1. |
| F5 | Notes are included on Exhibit 99.1. |
| F6 | Notes are included on Exhibit 99.1. |
| F7 | Notes are included on Exhibit 99.1. |
Exhibit List: Exhibit 99.1 - Explanation of Responses Exhibit 99.2 - Joint Filer Information Exhibit 99.3 - Joint Filers' Signature