| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Askarpour Shahram | Chief Executive Officer | C/O INNOVATIVE SOLUTIONS & SUPPORT, INC., 720 PENNSYLVANIA DRIVE, EXTON | /s/ Jeffrey DiGiovanni (attorney-in-fact) | 20 Feb 2026 | 0001546928 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ISSC | Common Stock | Tax liability | $85,260 | -3,625 | -0.72% | $23.52 | 498,817 | 18 Feb 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | These shares of common stock were withheld by the issuer to satisfy the reporting person's tax obligations in connection with the vesting of restricted stock units. |