InsiderTrades

Huang Chiao Chieh

SEC CIK 1964786 · EDGAR

Buying vs selling by month open-market trades, last 24 months, EFOI
BoughtSold

Companies

TickerCompanyTitleHoldingBoughtSoldTradesFirstLast
EFOIENERGY FOCUS, INC/DEDir, 10% 1.42M $1.50M — 52023-03-282025-11-26

Most active insiders at EFOI, 12 months

#InsiderTitleBoughtSold
1 Huang Chiao ChiehCEO, Dir, 10% $600.0K—

Transactions 5

Type
Reset
X Filed Traded Ticker Company Insider Title Type Price Qty Owned ΔOwn Value
2025-12-31 2025-11-26 EFOI ENERGY FOCUS, INC/DE Huang Chiao Chieh CEO, Dir, 10% P - Purchase $2.29 +262.0K 1.42M +23% +$600.0K
2025-08-19 2025-08-15 EFOI ENERGY FOCUS, INC/DE Huang Chiao Chieh CEO, Dir, 10% P - Purchase $1.89 +264.6K 1.16M +30% +$500.0K
M 2025-06-23 2025-03-27+ EFOI ENERGY FOCUS, INC/DE Huang Chiao Chieh CEO, Dir, 10% P - Purchase $1.87 +214.1K 784.2K +38% +$400.0K
2023-08-08 2023-06-29 EFOI ENERGY FOCUS, INC/DE Huang Chiao Chieh Dir, 10% A - Grant $1.76 +343.5K 680.5K +102% +$604.5K
I 2023-04-04 2023-03-28 EFOI ENERGY FOCUS, INC/DE Huang Chiao Chieh Dir, 10% A - Grant $0.56 +108.5K 2.66M +4% +$60.8K

Purchase Sale Sale after option exercise All abbreviations