| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Saak Aaron W | CEO, Director | 950 WINTER STREET, 4TH FLOOR NORTH, WALTHAM | /s/ Paul G. Igoe, Attorney-in-Fact | 01 Dec 2025 | 0001930489 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CXT | COMMON STOCK | Options Exercise | $0 | +13,915 | +55% | $0.000000 | 39,042 | 28 Nov 2025 | Direct | F1 |
| transaction | CXT | COMMON STOCK | Tax liability | $347,175 | -6,172 | -16% | $56.25 | 32,870 | 28 Nov 2025 | Direct |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Underlying Class | Amount | Exercise Price | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | CXT | Restricted Share Unit | Options Exercise | $0 | -13,915 | -21% | $0.000000 | 52,922 | 28 Nov 2025 | COMMON STOCK | 13,915 | Direct | F2, F3 |
| Id | Content |
|---|---|
| F1 | Represents vesting of 13,915 previously reported Restricted Share Units. |
| F2 | Restricted Share Units convert into common stock on a one-for-one basis. |
| F3 | Restricted Share Units vest 25% per year over four years beginning on the first anniversary of the grant date. |