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$3.26 · Score 36/100
11 open-market purchases and 1 sales out of the last 12 Form 4 filings scanned for NTHI — open-market transactions only, sourced directly from official SEC EDGAR filings.
11
Buys
1
Sells
| Date | Insider | Ownership | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Sep 18, 2026 | GARNETT KEITHLY CFO | Officer | Open Market Sale | 5,000 | $3.36 | $16.81K |
| Sep 15, 2026 | GARNETT KEITHLY CFO | Officer | Open Market Purchase | 257 | $3.89 | $1.00K |
| Sep 15, 2026 | CHEN THOMAS C CEO | OfficerDirector10%+ Owner | Open Market Purchase | 5,556 | $3.60 | $20.00K |
| Sep 15, 2026 | CHEN THOMAS C CEO | OfficerDirector10%+ Owner | Open Market Purchase | 5,242 | $3.82 | $20.00K |
| Sep 14, 2026 | Heshmatpour Amir F CEO, President | OfficerDirector10%+ Owner | Open Market Purchase | 37,000 | $3.67 | $135.62K |
| Aug 20, 2026 | CHEN THOMAS C CEO | OfficerDirector10%+ Owner | Open Market Purchase | 12,757 | $5.49 | $70.00K |
| Aug 20, 2026 | CHEN THOMAS C Chief Scientific Officer | OfficerDirector10%+ Owner | Open Market Purchase | 948 | $5.17 | $4.90K |
| Aug 20, 2026 | CHEN THOMAS C Chief Scientific Officer | OfficerDirector10%+ Owner | Open Market Purchase | 10,000 | $4.80 | $48.00K |
| Aug 20, 2026 | CHEN THOMAS C Chief Scientific Officer | OfficerDirector10%+ Owner | Open Market Purchase | 33,787 | $3.85 | $130.00K |
| Aug 20, 2026 | CHEN THOMAS C Chief Scientific Officer | OfficerDirector10%+ Owner | Open Market Purchase | 2,472 | $4.04 | $10.00K |
| Aug 18, 2026 | CHEN THOMAS C CEO | OfficerDirector10%+ Owner | Open Market Purchase | 33,787 | $3.85 | $130.00K |
| Aug 18, 2026 | CHEN THOMAS C CEO | OfficerDirector10%+ Owner | Open Market Purchase | 2,472 | $4.04 | $10.00K |
This information is based on official filings only and does not constitute investment advice. Insider transactions don't necessarily signal a stock's future direction — they can often stem from personal cash-flow needs, portfolio diversification, or tax planning.