Insider · CIK 0001964786
Chiao Chieh Huang
Files at EFOI (ENERGY FOCUS, INC/DE). First filing Jun 23, 2025, latest Dec 31, 2025.
In brief
Chiao Chieh Huang files SEC Form 4 as CEO, director and 10% owner at EFOI (ENERGY FOCUS, INC/DE). Since Jun 23, 2025, Chiao Chieh Huang has reported 3 open-market buys worth $1.5M and 0 open-market sells worth $0, the latest filed on Dec 31, 2025.
A track record needs three past buys with six months of prices behind them; Chiao Chieh Huang has 0, so none is measured yet.
The newest scored trade: bought $600k of EFOI on Nov 26, 2025, filed Dec 31, 2025, scored 50 (moderate). In the last 12 months: 1 buy worth $600k and 0 sells worth $0.
Where the trades landed
Last year at the company this insider has traded most, with each buy and sell on the bar it happened.
EFOI: ENERGY FOCUS, INC/DE
Daily candles, adjusted for splits and dividends. Green arrows are insider buys, red are sells, sized by value. Click a marked bar to open the signal.Charts by TradingView Lightweight Charts™
Signals
This insider’s open-market buys and sells, scored.
| Score | Company | Value | Holdings | Price context | Filed |
|---|---|---|---|---|---|
| 50Moderate | EFOIbuy ENERGY FOCUS, INC/DE | $600k 262,009 shares | +23% | - | |
| 49Moderate | EFOIbuy ENERGY FOCUS, INC/DE | $500k 264,550 shares | +30% | - | |
| 47Moderate | EFOIbuy ENERGY FOCUS, INC/DE | $400k 214,124 shares | +31% | - |
Transactions
Every row this insider has filed, 4 in all, newest first.
| Date | Company | Transaction | Shares | Price | Value | Holdings after | Filed |
|---|---|---|---|---|---|---|---|
| Nov 26, 2025 | EFOI ENERGY FOCUS, INC/DE | POpen-market purchase Common Stock | +262,009 | $2.29 | $600k | 1,421,219 | Dec 31, 2025 |
| Aug 15, 2025 | EFOI ENERGY FOCUS, INC/DE | POpen-market purchase Common Stock | +264,550 | $1.89 | $500k | 1,159,210 | Aug 19, 2025 |
| Mar 27, 2025 | EFOI ENERGY FOCUS, INC/DE | POpen-market purchase Common Stock | +103,627 | $1.93 | $200k | 784,163 | Jun 23, 2025 |
| Jun 23, 2025 | EFOI ENERGY FOCUS, INC/DE | POpen-market purchase Common Stock | +110,497 | $1.81 | $200k | 894,660 | Jun 23, 2025 |
Questions about Chiao Chieh Huang
Answered from the filings on this page, as of the latest one.
Is Chiao Chieh Huang buying or selling?
In the last 12 months Chiao Chieh Huang reported 1 open-market buy worth $600k and 0 open-market sells worth $0 on SEC Form 4; the latest was bought $600k of EFOI on Nov 26, 2025. Grants, option exercises and tax withholding are not counted.
How did Chiao Chieh Huang's past buys perform?
Not measured yet. InsiderTell needs three past buys with six months of prices to publish a track record, and Chiao Chieh Huang has 0.
Where does Chiao Chieh Huang file Form 4?
Chiao Chieh Huang has filed Form 4 at EFOI (ENERGY FOCUS, INC/DE) as Chief Executive Officer. A Form 4 is required of officers, directors and holders of more than 10% of a share class within two business days of a trade.
Not investment advice. Scores and forward returns are decision support built from public SEC filings and past prices; they describe what happened after comparable filings, not what will happen after this one. Do your own research and size your risk.