| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Elliott Mary Susan | Director | 1063 GREAT PLAIN AVE, NEEDHAM | /s/ Steven Lanter, pursuant to power of attorney | 30 Jan 2026 | 0002003469 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | NBBK | Common Stock | Purchase | $187,200 | +10,000 | +9.5% | $18.72 | 115,761 | 24 Jan 2025 | Direct | F1, F2 |
| transaction | NBBK | Common Stock | Purchase | $30,673 | +1,434 | $21.39 | 1,434 | 02 May 2025 | By Spouse |
| Id | Content |
|---|---|
| F1 | Includes shares of restricted stock which vest at a rate of 20% per year commencing on April 24, 2026. |
| F2 | Includes shares of restricted stock which vest 100% on January 2, 2027. |