As of June 18, 2026, the three largest insider holders of NSPR are Marvin Slosman (Ceo And President, 3.54Mn shares), Marvin Slosman (Ceo And President, 2.42Mn shares), Shane Thomas Gleason (Chief Commercial Officer, 1.14Mn shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Gary S Roubin | - | 744,478 | 0 | 16 Jan, 2026 |
| Scott R. Ward | - | 147,846 | 0 | 16 Jan, 2026 |
| Michael Berman | - | 352,586 | 0 | 16 Jan, 2026 |
| Raymond W Cohen | - | 92,417 | 0 | 16 Jan, 2026 |
| Craig Shore | Cfo And Cao | 1,112,460 | 0 | 10 Jan, 2025 |
| Paul Stuka | - | 523,704 | 0 | 16 Jan, 2026 |
| Campbell Rogers | - | 27,960 | 0 | 14 Oct, 2021 |
| Patrick Verta | Evp Clinical/Medical Affairs | 311,532 | 0 | 10 Jan, 2025 |
| Danny L. Dearen | - | 102,047 | 0 | 16 Jan, 2026 |
| Marvin Slosman | Ceo And President | 3,535,658 | 0 | 16 Jan, 2026 |
| Kathryn Arnold | - | 303,087 | 0 | 31 Dec, 2025 |
| Michael A Lawless | Chief Financial Officer | 691,695 | 0 | 16 Jan, 2026 |
| Shane Thomas Gleason | Chief Commercial Officer | 1,139,177 | 0 | 02 Feb, 2026 |
| Andrea Tommasoli | Chief Operating Officer | 954,389 | 0 | 16 Jan, 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 |
|---|---|---|---|---|---|---|---|---|
| 15 Jan, 2026 | Shane Thomas Gleason | Common Stock | D | 2,909 | $1.58 | 1,197,462 | D | S |
| 16 Jan, 2026 | Shane Thomas Gleason | Common Stock | D | 2,250 | $1.61 | 1,195,212 | D | S |
| 20 Jan, 2026 | Shane Thomas Gleason | Common Stock | D | 2,955 | $1.59 | 1,192,257 | D | S |
| 21 Jan, 2026 | Shane Thomas Gleason | Common Stock | D | 17,593 | $1.62 | 1,174,664 | D | S |
| 22 Jan, 2026 | Shane Thomas Gleason | Common Stock | D | 8,411 | $1.57 | 1,166,253 | D | S |
| 27 Jan, 2026 | Shane Thomas Gleason | Common Stock | D | 4,781 | $1.66 | 1,161,472 | D | S |
| 28 Jan, 2026 | Shane Thomas Gleason | Common Stock | D | 12,395 | $1.65 | 1,149,077 | D | S |
| 29 Jan, 2026 | Shane Thomas Gleason | Common Stock | D | 5,000 | $1.65 | 1,144,077 | D | S |
| 30 Jan, 2026 | Shane Thomas Gleason | Common Stock | D | 2,900 | $1.63 | 1,141,177 | D | S |
| 02 Feb, 2026 | Shane Thomas Gleason | Common Stock | D | 2,000 | $1.60 | 1,139,177 | D | S |
| 14 Jan, 2026 | Andrea Tommasoli | Common Stock | A | 226,695 | $0.00 | 954,389 | D | A |
| 14 Jan, 2026 | Paul Stuka | Common Stock | A | 132,076 | $0.00 | 523,704 | D | A |
| 14 Jan, 2026 | Andrea Tommasoli | Common Stock | A | 226,695 | $0.00 | 954,389 | D | A |
| 14 Jan, 2026 | Gary S Roubin | Common Stock | A | 88,053 | $0.00 | 744,478 | D | A |
| 14 Jan, 2026 | Paul Stuka | Common Stock | A | 132,076 | $0.00 | 523,704 | D | A |
| 14 Jan, 2026 | Marvin Slosman | Restricted Stock Units | A | 1,114,792 | $0.00 | 3,535,658 | D | A |
| 14 Jan, 2026 | Scott R. Ward | Common Stock | A | 88,053 | $0.00 | 147,846 | D | A |
| 14 Jan, 2026 | Gary S Roubin | Common Stock | A | 88,053 | $0.00 | 744,478 | D | A |
| 14 Jan, 2026 | Shane Thomas Gleason | Common Stock | A | 453,390 | $0.00 | 1,200,371 | D | A |
| 14 Jan, 2026 | Marvin Slosman | Restricted Stock Units | A | 1,114,792 | $0.00 | 3,535,658 | D | A |