BBNX's three largest insider shareholders as of March 23, 2026 are Hadley Harbor Aggregator Iv, L.P. Wellington (TenPercentOwner, 3.90Mn shares), Sean Saint (President Ceo, 437.81K shares), Mike Mensinger (Chief Product Officer, 188.79K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Hadley Harbor Aggregator Iv, L.P. Wellington | 3,901,599 | 0 | 03 Feb, 2025 | |
| Sean Saint | President Ceo | 437,809 | 0 | 03 Mar, 2026 |
| Mike Mensinger | Chief Product Officer | 188,793 | 0 | 03 Mar, 2026 |
| Steven Jon Russell | Chief Medical Officer | 179,096 | 0 | 03 Mar, 2026 |
| Stephen Feider | Chief Financial Officer | 172,729 | 0 | 03 Mar, 2026 |
| Mark Hopman | Chief Commercial Officer | 139,133 | 0 | 05 Mar, 2026 |
| Gerard J Michel | 16,544 | 0 | 14 Jan, 2026 | |
| Sean Carney | 15,244 | 0 | 14 Jan, 2026 | |
| Christy Jones | 15,244 | 0 | 14 Jan, 2026 | |
| Danny L. Dearen | 15,244 | 0 | 14 Jan, 2026 | |
| Maria Palasis | 12,432 | 0 | 14 Jan, 2026 | |
| Adam Lezack | 12,432 | 0 | 14 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 |
|---|---|---|---|---|---|---|---|---|
| 27 Feb, 2026 | Sean Saint | Employee Stock Option (right to buy) | A | 287,944 | $0.00 | 287,944 | D | A |
| 27 Feb, 2026 | Stephen Feider | Employee Stock Option (right to buy) | A | 110,342 | $0.00 | 110,342 | D | A |
| 27 Feb, 2026 | Mark Hopman | Employee Stock Option (right to buy) | A | 91,520 | $0.00 | 91,520 | D | A |
| 27 Feb, 2026 | Mike Mensinger | Employee Stock Option (right to buy) | A | 91,520 | $0.00 | 91,520 | D | A |
| 27 Feb, 2026 | Steven Jon Russell | Employee Stock Option (right to buy) | A | 91,520 | $0.00 | 91,520 | D | A |
| 04 Mar, 2026 | Mark Hopman | Common Stock | D | 353 | $11.57 | 139,133 | D | S |
| 27 Feb, 2026 | Stephen Feider | Common Stock | A | 131,543 | $0.00 | 174,157 | D | A |
| 27 Feb, 2026 | Mark Hopman | Common Stock | A | 109,105 | $0.00 | 140,320 | D | A |
| 27 Feb, 2026 | Steven Jon Russell | Common Stock | A | 109,105 | $0.00 | 180,122 | D | A |
| 27 Feb, 2026 | Sean Saint | Common Stock | A | 343,269 | $0.00 | 441,193 | D | A |
| 27 Feb, 2026 | Mike Mensinger | Common Stock | A | 109,105 | $0.00 | 189,857 | D | A |
| 02 Mar, 2026 | Sean Saint | Common Stock | D | 3,384 | $12.36 | 437,809 | D | S |
| 02 Mar, 2026 | Steven Jon Russell | Common Stock | D | 1,026 | $12.36 | 179,096 | D | S |
| 02 Mar, 2026 | Stephen Feider | Common Stock | D | 1,428 | $12.36 | 172,729 | D | S |
| 02 Mar, 2026 | Mark Hopman | Common Stock | D | 834 | $12.36 | 139,486 | D | S |
| 02 Mar, 2026 | Mike Mensinger | Common Stock | D | 1,064 | $12.36 | 188,793 | D | S |
| 27 Feb, 2026 | Mike Mensinger | Employee Stock Option (right to buy) | A | 58,749 | $0.00 | 58,749 | D | A |
| 27 Feb, 2026 | Sean Saint | Employee Stock Option (right to buy) | A | 184,837 | $0.00 | 184,837 | D | A |
| 27 Feb, 2026 | Mark Hopman | Employee Stock Option (right to buy) | A | 58,749 | $0.00 | 58,749 | D | A |
| 27 Feb, 2026 | Stephen Feider | Employee Stock Option (right to buy) | A | 70,831 | $0.00 | 70,831 | D | A |