As of September 09, 2026, the three largest insider holders of NTIP are Corey M Horowitz (Ceo And Chairman, 3.98Mn shares), Steven D. Heinemann (TenPercentOwner, 1.72Mn shares), Niv Harizman (Director, 347.24K shares).
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Corey M Horowitz | Ceo And Chairman | 3,983,954 | 0 | 3,983,954 | 60.1% | 26 Mar, 2024 |
| 2 | Steven D. Heinemann | TenPercentOwner | 0 | 1,722,058 | 1,722,058 | 26.0% | 29 Jul, 2021 |
| 3 | Niv Harizman | Director | 347,235 | 0 | 347,235 | 5.2% | 03 Mar, 2026 |
| 4 | Emanuel R Pearlman | Director | 143,309 | 0 | 143,309 | 2.2% | 26 Feb, 2024 |
| 5 | Allison C Hoffman | Director | 135,759 | 0 | 135,759 | 2.0% | 03 Mar, 2026 |
| 6 | Jonathan M Greene | Executive Vp Secretary | 126,119 | 0 | 126,119 | 1.9% | 09 Jan, 2026 |
| 7 | David C Kahn | Chief Financial Officer | 116,053 | 0 | 116,053 | 1.8% | 30 Dec, 2021 |
| 8 | Robert Michael Mahan | Chief Financial Officer | 50,000 | 0 | 50,000 | 0.8% | 08 Sep, 2025 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 27 Feb, 2026 | Niv Harizman | Director | Acquired A | 15,000 | $0.00 | $0 | 347,235 | Direct |
| 27 Feb, 2026 | Allison C Hoffman | Director | Acquired A | 15,000 | $0.00 | $0 | 135,759 | Direct |
| 18 Feb, 2026 | Jonathan M Greene | Executive Vp Secretary | Acquired A | 25,000 | $0.00 | $0 | 37,500 | Direct |
| 18 Feb, 2026 | Robert Michael Mahan | Chief Financial Officer | Acquired A | 15,000 | $0.00 | $0 | 50,000 | Direct |
| 08 Jan, 2026 | Jonathan M Greene | Executive Vp Secretary | Acquired A | 7,500 | $0.00 | $0 | 128,793 | Direct |
| 08 Jan, 2026 | Jonathan M Greene | Executive Vp Secretary | Disposed F | 2,674 | $1.34 | $3.58K | 126,119 | Direct |
| 08 Jan, 2026 | Jonathan M Greene | Executive Vp Secretary | Disposed M | 7,500 | $0.00 | $0 | 12,500 | Direct |
| 02 Jan, 2026 | Jonathan M Greene | Executive Vp Secretary | Acquired A | 12,500 | $0.00 | $0 | 125,749 | Direct |
| 02 Jan, 2026 | Jonathan M Greene | Executive Vp Secretary | Disposed F | 4,456 | $1.31 | $5.84K | 121,293 | Direct |
| 02 Jan, 2026 | Jonathan M Greene | Executive Vp Secretary | Disposed M | 12,500 | $0.00 | $0 | 20,000 | Direct |
| 22 Sep, 2025 | Robert Michael Mahan | Chief Financial Officer | Disposed A | 35,000 | $0.00 | $0 | 35,000 | Direct |
| 08 Sep, 2025 | Robert Michael Mahan | Chief Financial Officer | Acquired A | 25,000 | $0.00 | $0 | 50,000 | Direct |
| 08 Sep, 2025 | Robert Michael Mahan | Chief Financial Officer | Disposed M | 25,000 | $0.00 | $0 | 0 | Direct |
| 19 Feb, 2025 | Niv Harizman | Director | Acquired A | 15,000 | $0.00 | $0 | 332,235 | Direct |
| 19 Feb, 2025 | Allison C Hoffman | Director | Acquired A | 15,000 | $0.00 | $0 | 120,561 | Direct |
| 24 Jan, 2025 | Jonathan M Greene | Executive Vp Secretary | Acquired A | 7,500 | $0.00 | $0 | 115,923 | Direct |
| 24 Jan, 2025 | Jonathan M Greene | Executive Vp Secretary | Disposed F | 2,674 | $1.37 | $3.66K | 113,249 | Direct |
| 24 Jan, 2025 | Jonathan M Greene | Executive Vp Secretary | Disposed M | 7,500 | $0.00 | $0 | 32,500 | Direct |
| 08 Jan, 2025 | Jonathan M Greene | Executive Vp Secretary | Acquired A | 7,500 | $0.00 | $0 | 111,097 | Direct |
| 08 Jan, 2025 | Jonathan M Greene | Executive Vp Secretary | Disposed F | 2,674 | $1.43 | $3.82K | 108,423 | Direct |