| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Shannon James Samuel | Director | 828 WINTER STREET, SUITE 300, WALTHAM | /s/ Kevin Brennan, Attorney-in-Fact | 18 Jun 2025 | 0001485417 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | XLO | Common Stock | Purchase | $30,870 | +45,000 | $0.6860 | 45,000 | 16 Jun 2025 | Direct | F1 | |
| transaction | XLO | Common Stock | Purchase | $17,215 | +25,000 | +56% | $0.6886 | 70,000 | 17 Jun 2025 | Direct | F2 |
| Id | Content |
|---|---|
| F1 | The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.6799 to $0.6891 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. |
| F2 | The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $0.6659 to $0.6991 inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. |