| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Darcey William | Director | 1063 GREAT PLAIN AVE, NEEDHAM | /s/ Steven Lanter, pursuant to power of attorney | 12 Aug 2025 | 0002003467 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NBBK | Common Stock | Purchase | $2,403 | +139 | +0.18% | $17.29 | 75,376 | 11 Aug 2025 | Direct | F1 |
| transaction | NBBK | Common Stock | Purchase | $84,095 | +4,861 | +6.4% | $17.30 | 80,237 | 11 Aug 2025 | Direct | F1 |
| holding | NBBK | Common Stock | 80,000 | 11 Aug 2025 | By IRA |
| Id | Content |
|---|---|
| F1 | Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026. |