| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Olson Jon W | SVP and General Counsel | 65 FAIRCHILD STREET, CHARLESTON | /s/ Donald R. Reynolds, Attorney-in-Fact | 03 Mar 2026 | 0001524788 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | BLKB | Common Stock | Sale | $482,268 | -10,000 | -20% | $48.23 | 40,939 | 27 Feb 2026 | Direct | F1 |
| transaction | BLKB | Common Stock | Sale | $245,511 | -5,000 | -12% | $49.10 | 35,939 | 03 Mar 2026 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | This transaction was executed in multiple trades at prices ranging from $48.13 to $48.43. The price reported in Column 4 is a weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected. |
| F2 | This transaction was executed in multiple trades at prices ranging from $49.10 to $49.205. The price reported in Column 4 is a weighted average price. The reporting person hereby undertakes to provide upon request to the SEC staff, the Issuer or a security holder of the Issuer full information regarding the number of shares and prices at which the transactions were effected. |