As of May 04, 2026, the three largest insider holders of ISSC are Of Geoffrey S. M. Hedrick Estate (TenPercentOwner, 1.65Mn shares), Christopher Harborne (TenPercentOwner, 1.58Mn shares), Shahram Askarpour (Chief Executive Officer, 502.44K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Of Geoffrey S. M. Hedrick Estate | - | 1,652,207 | 0 | 11 Aug, 2023 |
| Christopher Harborne | - | 0 | 1,583,411 | 01 Jul, 2025 |
| Shahram Askarpour | Chief Executive Officer | 502,442 | 0 | 19 Feb, 2026 |
| Shahram Askarpour | Chief Executive Officer | 495,941 | 0 | 24 Feb, 2026 |
| Glen R Bressner | - | 147,355 | 0 | 20 Apr, 2026 |
| Glen R Bressner | - | 128,201 | 0 | 16 Aug, 2024 |
| Robert E Jr Mittelstaedt | - | 124,008 | 0 | 15 Jun, 2022 |
| Robert E Jr Mittelstaedt | - | 124,008 | 0 | 15 Jun, 2022 |
| Jeffrey Digiovanni | Chief Financial Officer | 92,205 | 0 | 19 Feb, 2026 |
| Jeffrey Digiovanni | Chief Financial Officer | 88,371 | 0 | 10 Apr, 2026 |
| Roger Anthony Carolin | - | 83,188 | 0 | 20 Apr, 2026 |
| Roger Anthony Carolin | - | 52,790 | 0 | 16 Apr, 2024 |
| Stephen L Belland | - | 42,559 | 0 | 20 Apr, 2026 |
| Garry C. Dean | - | 29,408 | 0 | 20 Apr, 2026 |
| Denise L Devine | - | 20,622 | 0 | 20 Apr, 2026 |
| Stephen L Belland | - | 12,161 | 0 | 16 Apr, 2024 |
| Parizad Olver | - | 11,806 | 0 | 16 Apr, 2024 |
| Parizad Olver | - | 11,806 | 0 | 16 Apr, 2024 |
| Parizad Olver | - | 11,806 | 0 | 16 Apr, 2024 |
| Winston J Churchill | - | 9,523 | 0 | 14 Jun, 2023 |
| Richard A Silfen | - | 7,508 | 0 | 20 Apr, 2026 |
| Richard A Silfen | - | 1,890 | 0 | 19 Feb, 2026 |
| Richard A Silfen | - | 1,890 | 0 | 19 Feb, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 16 Apr, 2026 | Glen R Bressner | Restricted Stock Units | A | 5,618 | $0.00 | 147,355 | D | A |
| 16 Apr, 2026 | Roger Anthony Carolin | Restricted Stock Units | A | 5,618 | $0.00 | 83,188 | D | A |
| 16 Apr, 2026 | Denise L Devine | Restricted Stock Units | D | 5,403 | $0.00 | 15,004 | D | D |
| 16 Apr, 2026 | Stephen L Belland | Restricted Stock Units | A | 5,618 | $0.00 | 42,559 | D | A |
| 16 Apr, 2026 | Richard A Silfen | Restricted Stock Units | A | 5,618 | $0.00 | 7,508 | D | A |
| 16 Apr, 2026 | Garry C. Dean | Restricted Stock Units | A | 5,618 | $0.00 | 29,408 | D | A |
| 16 Apr, 2026 | Denise L Devine | Restricted Stock Units | A | 5,618 | $0.00 | 20,622 | D | A |
| 08 Apr, 2026 | Jeffrey Digiovanni | Common Stock | D | 765 | $23.02 | 88,371 | D | F |
| 31 Mar, 2026 | Jeffrey Digiovanni | Common Stock | D | 897 | $20.53 | 89,136 | D | F |
| 22 Feb, 2026 | Shahram Askarpour | Common Stock | D | 2,876 | $24.32 | 495,941 | D | F |
| 18 Feb, 2026 | Shahram Askarpour | Common Stock | D | 3,625 | $23.52 | 498,817 | D | F |
| 18 Feb, 2026 | Jeffrey Digiovanni | Common Stock | D | 2,172 | $23.52 | 90,033 | D | F |
| 17 Feb, 2026 | Shahram Askarpour | Restricted Stock Units | A | 20,171 | $0.00 | 502,442 | D | A |
| 17 Feb, 2026 | Richard A Silfen | Restricted Stock Units | A | 1,890 | $0.00 | 1,890 | D | A |
| 17 Feb, 2026 | Richard A Silfen | Restricted Stock Units | A | 1,890 | $0.00 | 1,890 | D | A |
| 17 Feb, 2026 | Jeffrey Digiovanni | Restricted Stock Units | A | 9,455 | $0.00 | 92,205 | D | A |
| 17 Feb, 2026 | Richard A Silfen | Restricted Stock Units | A | 1,890 | $0.00 | 1,890 | D | A |
| 17 Feb, 2026 | Jeffrey Digiovanni | Non-Qualified Stock Option (Right to Buy) | A | 16,108 | $0.00 | 16,108 | D | A |
| 17 Feb, 2026 | Shahram Askarpour | Non-Qualified Stock Option (Right to Buy) | A | 34,364 | $0.00 | 34,364 | D | A |
| 17 Feb, 2026 | Shahram Askarpour | Performance Stock Units | A | 20,171 | $0.00 | 20,171 | D | A |