| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Gusinov Alex | Corp. Vice President Eng. | 25 FRONTAGE RD., ANDOVER | /s/Quentin A. Fendelet Attorney in fact for Alex Gusinov | 24 Nov 2025 | 0001654925 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | VICR | Common Stock | Sale | $135,185 | -1,571 | -10% | $86.05 | 14,184 | 21 Nov 2025 | Direct |