| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| CRILLY SEAN | Corp. VP-Eng., Pwr Syst. | 25 FRONTAGE RD., ANDOVER | /s/Quentin A Fendelet. Attorney in Fact for Sean Crilly | 29 Oct 2025 | 0001655180 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | VICR | Common Stock | Sale | $1,075,336 | -12,000 | -44% | $89.61 | 15,532 | 27 Oct 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Includes 204 shares acquired under the Vicor Corporation 2017 Employee Stock Purchase Plan on August 29 2025. |