Insider Trading
Current insider transactions (SEC Form 4) — buys and sells by officers, directors, and major shareholders.
| Ticker | Insider | Title | Date | Transaction | Price ($) | Shares | Value ($) | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|
| NTHI | Garnett Keithly | CFO | 09/15/2026 | Verkauf | 3.36 | 5,000 | 16,809 | Form 4 |
| NTHI | Heshmatpour Amir F | CEO, President | 09/15/2026 | Kauf | 3.30 | 35,000 | 115,395 | Form 4 |
| NTHI | Heshmatpour Amir F | CEO, President | 09/14/2026 | Kauf | 3.96 | 15,000 | 59,400 | Form 4 |
| NTHI | Chen Thomas C | CEO | 09/14/2026 | Kauf | 3.82 | 5,242 | 19,998 | Form 4 |
| NTHI | Garnett Keithly | CFO | 09/14/2026 | Kauf | 3.89 | 257 | 1,001 | Form 4 |
| NTHI | Chen Thomas C | CEO | 09/11/2026 | Kauf | 3.60 | 5,556 | 20,002 | Form 4 |
| NTHI | Heshmatpour Amir F | CEO, President | 09/11/2026 | Kauf | 3.67 | 37,000 | 135,620 | Form 4 |
| NTHI | Chen Thomas C | CEO | 08/18/2026 | Kauf | 5.49 | 12,757 | 69,998 | Form 4 |
| NTHI | Heshmatpour Amir F | CEO, President | 08/18/2026 | Kauf | 5.54 | 9,000 | 49,860 | Form 4 |
| NTHI | Chen Thomas C | CEO | 08/17/2026 | Kauf | 4.04 | 2,472 | 9,998 | Form 4 |
| NTHI | Heshmatpour Amir F | CEO, President | 08/17/2026 | Kauf | 4.37 | 3,000 | 13,120 | Form 4 |
| NTHI | Chen Thomas C | CEO | 08/14/2026 | Kauf | 3.85 | 33,787 | 130,002 | Form 4 |
| NTHI | Heshmatpour Amir F | CEO, President | 08/14/2026 | Kauf | 3.79 | 12,000 | 45,460 | Form 4 |
| NTHI | Shomali Nasim | Director | 07/10/2026 | Zuteilung | — | 50,000 | — | Form 4 |
| NTHI | Amir F Heshmatpour | President | 04/23/2026 | Kauf | 4.90 | 10,000 | 49,000 | Form 4 |
| NTHI | Yousha Neman-Ebrahim | Insider | 04/23/2026 | Kauf | 4.88 | 500 | 2,440 | Form 4 |
A compact market overview — not investment advice. Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q).