Chiao Chieh Huang insider trades: Energy Focus, Inc/De (EFOI) stock purchases
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where Chiao reports to the SEC
Open-market buys and sales
3 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Nov 26, 2025 | EFOI | ↑ Buy | 262,009 | $2.29 | $600K | Direct | Dec 31, 2025 (35d) |
| Aug 15, 2025 | EFOI | ↑ Buy | 264,550 | $1.89 | $500K | Direct | Aug 19, 2025 (4d) |
| Jun 23, 2025 | EFOI | ↑ Buy | 214,124 | $1.87 | $400K | Direct | Jun 23, 2025 (0d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
About Chiao Chieh Huang's insider trades
Chiao Chieh Huang is Chief Executive Officer at Energy Focus, Inc/De (EFOI). Since Jun 23, 2025, Chiao has reported 3 open-market purchases worth $1.5M and no sales on SEC Form 4. In the last 12 months: 1 buy ($600K).
Their filings also include grants and awards (2 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every EFOI insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.