Huang Chiao Chieh (CIK 1964786) reported 4 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2025-12-31). Recent activity: Buy EFOI (262,009 shares), Buy EFOI (264,550 shares), Buy EFOI (103,627 shares), Buy EFOI (110,497 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-12-31 | ENERGY FOCUS, INC/DE (EFOI) | Chief Executive Officer | Buy | 262,009 | $600,001 |
| 2025-08-19 | ENERGY FOCUS, INC/DE (EFOI) | Chief Executive Officer | Buy | 264,550 | $500,000 |
| 2025-06-23 | ENERGY FOCUS, INC/DE (EFOI) | Chief Executive Officer | Buy | 103,627 | $200,000 |
| 2025-06-23 | ENERGY FOCUS, INC/DE (EFOI) | Chief Executive Officer | Buy | 110,497 | $200,000 |
Source: SEC Form 4 filings · as of 2025-12-31