The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) of Huang Chiao Chieh since 2025.
This trader's CIK number is 1964786.
At the time of last reporting, Huang Chiao Chieh was the Chief Executive Officer of Energy Focus, Inc/de. (stock ticker symbol EFOI).
Also see all insider trading activities at Energy Focus, Inc/de.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2025 | EFOI | 478,674 | $899,998 | 0 | $0 | 0 | $0 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2025-08-15 | EFOI | Buy | 264,550 | 1.89 | 499,999 |
| 2025-06-23 | EFOI | Buy | 110,497 | 1.81 | 199,999 |
| 2025-03-27 | EFOI | Buy | 103,627 | 1.93 | 200,000 |
Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Huang Chiao Chieh (Chief Executive Officer of Energy Focus, Inc/de at the time of this reporting) see the Securities and Exchange Commission (SEC) website.