As of April 22, 2026, the three largest insider holders of INSP are Timothy P. Herbert (Ceo And President, 117.66K shares), Timothy P. Herbert (Ceo, President Chairperson, 112.73K shares), Timothy P. Herbert (Ceo And President, 99.83K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Timothy P. Herbert | Ceo And President | 0 | 117,658 | 23 Dec, 2024 |
| Timothy P. Herbert | Ceo, President Chairperson | 0 | 112,731 | 04 Jun, 2024 |
| Timothy P. Herbert | Ceo And President | 99,834 | 0 | 24 Feb, 2026 |
| Timothy P. Herbert | Ceo And President | 0 | 63,658 | 03 Apr, 2024 |
| Marilyn C Nelson | - | 0 | 50,919 | 20 Dec, 2022 |
| Marilyn C Nelson | - | 0 | 50,919 | 20 Dec, 2022 |
| Richard Buchholz | Interim Cfo | 43,988 | 0 | 18 Feb, 2026 |
| Carlton Weatherby | Chief Strategy Officer | 41,679 | 0 | 24 Feb, 2026 |
| Carlton Weatherby | Chief Strategy Officer | 41,679 | 0 | 24 Feb, 2026 |
| Bryan K Phillips | - | 38,513 | 0 | 24 Feb, 2026 |
| Marilyn C Nelson | - | 35,620 | 0 | 01 May, 2024 |
| Marilyn C Nelson | - | 35,620 | 0 | 01 May, 2024 |
| John Rondoni | Chief Technology Officer | 30,506 | 0 | 24 Feb, 2026 |
| John Rondoni | Chief Technology Officer | 30,506 | 0 | 24 Feb, 2026 |
| Shawn Mccormick | - | 24,846 | 0 | 04 Dec, 2025 |
| Melissa Mann | Chief People Officer | 23,609 | 0 | 24 Feb, 2026 |
| Melissa Mann | Chief People Officer | 23,609 | 0 | 24 Feb, 2026 |
| Steven Jandrich | Vp, Human Resources | 23,096 | 0 | 31 Jan, 2024 |
| Steven Jandrich | Vp, Human Resources | 23,096 | 0 | 31 Jan, 2024 |
| Casey M Tansey | - | 22,724 | 0 | 16 Apr, 2026 |
| Dana G Jr. Mead | - | 22,651 | 0 | 05 May, 2025 |
| Casey M Tansey | - | 22,416 | 0 | 20 Jan, 2026 |
| Jason P Kelly | - | 19,948 | 0 | 24 Feb, 2026 |
| Jason P Kelly | - | 19,948 | 0 | 24 Feb, 2026 |
| Jerry C Griffin | - | 10,900 | 0 | 03 Apr, 2024 |
| Timothy P. Herbert | Ceo And President | 0 | 9,728 | 14 Feb, 2023 |
| Gary Lee Ellis | - | 7,276 | 0 | 16 Apr, 2026 |
| Randy Ban | Chief Commercial Officer | 7,259 | 0 | 05 Mar, 2025 |
| Shelley G Broader | - | 4,909 | 0 | 16 Apr, 2026 |
| Georgia Melenikiotou | - | 4,473 | 0 | 16 Apr, 2026 |
| Charisse Y Sparks | Chief Medical Officer | 3,628 | 0 | 31 May, 2024 |
| Charisse Y Sparks | Chief Medical Officer | 3,628 | 0 | 31 May, 2024 |
| Myriam Curet | - | 3,366 | 0 | 05 May, 2025 |
| Philip Ebeling | Chief Operating Officer | 3,027 | 0 | 13 Feb, 2024 |
| Richard Buchholz | Chief Financial Officer | 0 | 2,950 | 25 Feb, 2025 |
| Richard Buchholz | Chief Financial Officer | 0 | 2,700 | 18 Apr, 2024 |
| Cynthia Burks | - | 2,651 | 0 | 05 May, 2025 |
| Richard Buchholz | Chief Financial Officer | 0 | 2,450 | 13 Jan, 2023 |
| Steven Jandrich | Vp, Human Resources | 0 | 956 | 28 Feb, 2023 |
| Steven Jandrich | Vp, Human Resources | 0 | 956 | 28 Feb, 2023 |
| Casey M Tansey | - | 0 | 500 | 18 Jan, 2024 |
| Casey M Tansey | - | 0 | 500 | 18 Jan, 2024 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 15 Apr, 2026 | Georgia Melenikiotou | Common Stock | A | 307 | $52.07 | 4,473 | D | A |
| 15 Apr, 2026 | Shelley G Broader | Common Stock | A | 342 | $52.07 | 4,909 | D | A |
| 15 Apr, 2026 | Gary Lee Ellis | Common Stock | A | 518 | $52.07 | 7,276 | D | A |
| 15 Apr, 2026 | Casey M Tansey | Common Stock | A | 308 | $52.07 | 22,724 | D | A |
| 20 Feb, 2026 | Jason P Kelly | Common Stock | A | 15,958 | $0.00 | 19,948 | D | A |
| 20 Feb, 2026 | Carlton Weatherby | Common Stock | A | 2,196 | $0.00 | 8,756 | D | A |
| 20 Feb, 2026 | Melissa Mann | Common Stock | A | 15,958 | $0.00 | 23,609 | D | A |
| 20 Feb, 2026 | John Rondoni | Common Stock | A | 2,400 | $0.00 | 15,283 | D | A |
| 20 Feb, 2026 | Timothy P. Herbert | Common Stock | A | 9,005 | $0.00 | 41,691 | D | A |
| 20 Feb, 2026 | John Rondoni | Common Stock | D | 735 | $59.53 | 14,548 | D | F |
| 20 Feb, 2026 | Carlton Weatherby | Common Stock | D | 672 | $59.53 | 8,084 | D | F |
| 20 Feb, 2026 | Timothy P. Herbert | Common Stock | D | 4,010 | $59.53 | 37,681 | D | F |
| 20 Feb, 2026 | Carlton Weatherby | Common Stock | A | 20,997 | $0.00 | 29,081 | D | A |
| 20 Feb, 2026 | Timothy P. Herbert | Common Stock | A | 62,153 | $0.00 | 99,834 | D | A |
| 20 Feb, 2026 | John Rondoni | Common Stock | A | 15,958 | $0.00 | 30,506 | D | A |
| 20 Feb, 2026 | Carlton Weatherby | Common Stock | A | 12,598 | $0.00 | 41,679 | D | A |
| 13 Feb, 2026 | Melissa Mann | Common Stock | D | 615 | $59.76 | 7,651 | D | F |
| 13 Feb, 2026 | John Rondoni | Common Stock | D | 587 | $59.76 | 12,883 | D | F |
| 13 Feb, 2026 | Carlton Weatherby | Common Stock | D | 570 | $59.76 | 6,560 | D | F |
| 13 Feb, 2026 | Jason P Kelly | Common Stock | D | 551 | $59.76 | 3,990 | D | F |