NTHI Insider Transactions
62 retained open-market purchase and sale rows from SEC Forms 3, 4 and 5, newest first. This page shows rows 1–62; provenance stays internal.
NTHI insiders transaction timeline
PurchaseSale
| Insider profile | Role | Date | Transaction | Shares | Price |
|---|---|---|---|---|---|
| CHEN THOMAS C | CEO | 2026-08-18 | Purchase | 12,757 | $5.487 |
| Heshmatpour Amir F | CEO, President | 2026-08-18 | Purchase | 9,000 | $5.54 |
| CHEN THOMAS C | Chief Scientific Officer | 2026-08-17 | Purchase | 2,472 | $4.0445 |
| CHEN THOMAS C | CEO | 2026-08-17 | Purchase | 2,472 | $4.0445 |
| Heshmatpour Amir F | CEO, President | 2026-08-17 | Purchase | 3,000 | $4.3733 |
| CHEN THOMAS C | Chief Scientific Officer | 2026-08-14 | Purchase | 33,787 | $3.8477 |
| CHEN THOMAS C | CEO | 2026-08-14 | Purchase | 33,787 | $3.8477 |
| Heshmatpour Amir F | CEO, President | 2026-08-14 | Purchase | 12,000 | $3.7883 |
| Heshmatpour Amir F | President | 2026-05-01 | Purchase | 10,000.0 | $4.16 |
| Heshmatpour Amir F | President | 2026-04-28 | Purchase | 10,000.0 | $4.52 |
| CHEN THOMAS C | Chief Scientific Officer | 2026-04-24 | Purchase | 10,000 | $4.80 |
| Neman-Ebrahim Yousha | Chief Clinical Officer | 2026-04-23 | Purchase | 500.0 | $4.88 |
| Heshmatpour Amir F | President | 2026-04-23 | Purchase | 10,000.0 | $4.9 |
| CHEN THOMAS C | Chief Scientific Officer | 2026-04-10 | Purchase | 948 | $5.1677 |
| Heshmatpour Amir F | President | 2026-04-10 | Purchase | 10,000.0 | $4.9 |
| SUH, DAVID JR. | Chief Accounting Officer | 2026-04-09 | Purchase | 200.0 | $5.0 |
| Heshmatpour Amir F | President | 2026-04-09 | Purchase | 5,000.0 | $5.19 |
| Heshmatpour Amir F | President | 2026-04-08 | Purchase | 10,000.0 | $5.61 |
| Heshmatpour Amir F | President | 2026-04-06 | Purchase | 5,000.0 | $6.32 |
| Heshmatpour Amir F | President | 2026-04-02 | Purchase | 20,000.0 | $6.09 |
| Heshmatpour Amir F | President | 2025-11-24 | Purchase | 6,000.0 | $6.51 |
| Heshmatpour Amir F | President | 2025-11-21 | Purchase | 4,000.0 | $6.5 |
| Heshmatpour Amir F | President | 2025-11-21 | Purchase | 20,000.0 | $5.98 |
| Neman-Ebrahim Yousha | Chief Clinical Officer | 2025-11-20 | Purchase | 1,100.0 | $6.69 |
| Heshmatpour Amir F | President | 2025-05-23 | Purchase | 2,000.0 | $7.39 |
| CHEN THOMAS C | CEO | 2025-05-22 | Purchase | 2,709.0 | $7.38 |
| GARNETT KEITHLY | CFO | 2025-05-22 | Purchase | 675.0 | $7.29 |
| CHEN THOMAS C | CEO | 2025-05-21 | Purchase | 2,759.0 | $7.25 |
| GARNETT KEITHLY | CFO | 2025-05-19 | Purchase | 135.0 | $7.23 |
| Heshmatpour Amir F | President | 2025-05-16 | Purchase | 3,510.0 | $16.87 |
| Heshmatpour Amir F | President | 2025-05-15 | Purchase | 1,500.0 | $7.3 |
| Heshmatpour Amir F | President | 2025-05-14 | Purchase | 1,000.0 | $7.27 |
| GARNETT KEITHLY | CFO | 2025-05-13 | Purchase | 90.0 | $7.01 |
| GARNETT KEITHLY | CFO | 2025-05-13 | Purchase | 90.0 | $7.01 |
| Heshmatpour Amir F | President | 2025-05-13 | Purchase | 990.0 | $7.01 |
| Delshad Jim | Director | 2025-05-12 | Purchase | 5,000.0 | $7.22 |
| CHEN THOMAS C | CEO | 2025-05-12 | Purchase | 400.0 | $7.0 |
| Heshmatpour Amir F | President | 2025-05-12 | Purchase | 1,400.0 | $7.23 |
| Heshmatpour Amir F | President | 2025-05-11 | Purchase | 1,600.0 | $7.51 |
| Delshad Jim | Director | 2025-04-17 | Purchase | 50.0 | $6.92 |
| GARNETT KEITHLY | CFO | 2025-04-15 | Purchase | 300.0 | $5.38 |
| CHIANG MING-FU (ALAN) | Director | 2025-03-26 | Sale | 1,446.0 | $19.13 |
| CHIANG MING-FU (ALAN) | Director | 2025-03-26 | Sale | 56,250.0 | $25.0 |
| WALTERS PATRICK | COO | 2025-03-26 | Sale | 297.0 | $19.13 |
| WALTERS PATRICK | COO | 2025-03-26 | Sale | 11,550.0 | $25.0 |
| GARNETT KEITHLY | CFO | 2025-03-26 | Sale | 166.0 | $19.13 |
| GARNETT KEITHLY | CFO | 2025-03-26 | Sale | 6,450.0 | $25.0 |
| Heshmatpour Amir F | Director | 2025-03-26 | Sale | 964.0 | $19.13 |
| Heshmatpour Amir F | Director | 2025-03-26 | Sale | 37,500.0 | $25.0 |
| CHEN THOMAS C | CEO | 2025-03-26 | Sale | 983.0 | $19.13 |
| CHEN THOMAS C | CEO | 2025-03-26 | Sale | 38,250.0 | $25.0 |
| Delshad Jim | Director | 2025-03-26 | Purchase | 50.0 | $16.05 |
| GARNETT KEITHLY | CFO | 2025-03-26 | Sale | 166.0 | $19.13 |
| GARNETT KEITHLY | CFO | 2025-03-26 | Sale | 6,450.0 | $25.0 |
| Heshmatpour Amir F | Director | 2025-03-26 | Sale | 964.0 | $19.13 |
| Heshmatpour Amir F | Director | 2025-03-26 | Sale | 37,500.0 | $25.0 |
| WALTERS PATRICK | COO | 2025-03-26 | Sale | 297.0 | $19.13 |
| WALTERS PATRICK | COO | 2025-03-26 | Sale | 11,550.0 | $25.0 |
| CHIANG MING-FU (ALAN) | Director | 2025-03-26 | Sale | 1,446.0 | $19.13 |
| CHIANG MING-FU (ALAN) | Director | 2025-03-26 | Sale | 56,250.0 | $25.0 |
| CHEN THOMAS C | CEO | 2025-03-26 | Sale | 983.0 | $19.13 |
| CHEN THOMAS C | CEO | 2025-03-26 | Sale | 38,250.0 | $25.0 |