🕵️ Charles & Colvard Ltd ($CTHR)
SEC insider & ownership activity, last 12 months · CIK 1015155 · every row links its SEC filing
Insiders were quiet over the last 12 months – no open-market buys or sells. Pham Duc Hoang added 9.6% → 11.9%; Riverstyx Capital Management LLC added 7.4% → 11.9%. 3 red-flag 8-Ks in the window, most recently Bankruptcy (1.03), Mar 2, 2026.
Insider flow
0 buyers, $0 (0 lots) · 0 sellers, $0 (0 lots)
No open-market insider transactions in the last 12 months.
5%+ holders
| Holder | Stake | Class | Schedule | Event | |
|---|---|---|---|---|---|
| Ethara Capital LLC | 42.8% | 13D | Aug 29, 2025 | filing ↗ | |
| Pham Duc Hoang | 11.9% | 13D | Sep 23, 2025 | filing ↗ | |
| The Riverstyx Fund, LP | 11.9% | 13D | Sep 23, 2025 | filing ↗ | |
| Riverstyx Fund, GP | 11.9% | 13D | Sep 23, 2025 | filing ↗ | |
| Ben Franklin | 11.9% | 13D | Sep 23, 2025 | filing ↗ | |
| Michael R. Levin | 11.9% | 13D | Sep 23, 2025 | filing ↗ | |
| Lloyd M. Sems | 11.9% | 13D | Sep 23, 2025 | filing ↗ | |
| Riverstyx Capital Management LLC | 11.9% | 13D | Sep 23, 2025 | filing ↗ |
Planned insider sales (Form 144)
No sale notices filed in the last 12 months.
Material events (8-K)
| Item | Event date | |
|---|---|---|
| Reg FD disclosure (7.01) | Jul 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 15, 2026 | filing ↗ |
| Agreement terminated (1.02) | Jul 1, 2026 | filing ↗ |
| Acquisition or disposition (2.01) | Jul 1, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jul 1, 2026 | filing ↗ |
| Material agreement (1.01) | Jun 22, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Jun 22, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 27, 2026 | filing ↗ |
| Officer/director changes (5.02) | Apr 27, 2026 | filing ↗ |
| Other events (8.01) | Apr 27, 2026 | filing ↗ |
| Material agreement (1.01) | Apr 15, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Apr 15, 2026 | filing ↗ |
| Material agreement (1.01) | Mar 24, 2026 | filing ↗ |
| New financial obligation (2.03) | Mar 24, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 24, 2026 | filing ↗ |
| Officer/director changes (5.02) | Mar 23, 2026 | filing ↗ |
| Charter/bylaw changes (5.03) | Mar 23, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 23, 2026 | filing ↗ |
| Bankruptcy (1.03) | Mar 2, 2026 | filing ↗ |
| Debt acceleration (2.04) | Mar 2, 2026 | filing ↗ |
| Reg FD disclosure (7.01) | Mar 2, 2026 | filing ↗ |
| Financial Statements and Exhibits (9.01) | Mar 2, 2026 | filing ↗ |
| Other events (8.01) | Feb 19, 2026 | filing ↗ |
| Officer/director changes (5.02) | Jan 5, 2026 | filing ↗ |
| Debt acceleration (2.04) | Nov 25, 2025 | filing ↗ |
| Change of control (5.01) | Nov 25, 2025 | filing ↗ |
| Officer/director changes (5.02) | Nov 25, 2025 | filing ↗ |
| Shareholder vote (5.07) | Nov 25, 2025 | filing ↗ |
| Shareholder vote (5.07) | Oct 13, 2025 | filing ↗ |
| Other events (8.01) | Sep 12, 2025 | filing ↗ |