| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Belstock Richard L | EVP and CFO | 35 S. LINDAN AVE, QUINCY | /s/ Richard L. Belstock | 10 Mar 2026 | 0001488642 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PLBC | Common Stock | Options Exercise | +2,500 | +4.6% | $31.00* | 56,735 | 10 Mar 2026 | Direct | ||
| holding | PLBC | Common Stock | 14,043 | 10 Mar 2026 | 401(k) Plan | F1 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | PLBC | Option to buy common stock | Options Exercise | -2,500 | -33% | $0.000000* | 5,000 | 10 Mar 2026 | Common stock | 2,500 | $31.00 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | An increase of 81 from previous report on Form 4. |
| F2 | Exercisable in five (5) equal annual installments beginning August 16, 2023. |