Summary
Updated Aug 31, 2026
Chiao Chieh Huang is Chief Executive Officer, Director, 10% Owner of ENERGY FOCUS, INC/DE (EFOI). 1 SEC Form 4 filing on record, dated 19 August 2025. Most recent open-market trade: bought $500K of EFOI on 19 August 2025. Lifetime open-market purchases: $500K.
Recent Transactions
1Every recent SEC Form 4 transaction Chiao Chieh Huang has reported, most recent first.
Other Insiders Active in the Same Sector
No other insider has filed at Chiao Chieh Huang's companies, so these are insiders reporting open-market trades at other companies in the same sector.
- Uber Technologies, Inc - $950.85M of AUR open-market activity in the last 12 months
- SLTA V (GP), L.L.C. - $898.79M of DELL open-market activity in the last 12 months
- SLTA IV (GP), L.L.C. - $866.62M of DELL open-market activity in the last 12 months
- Jayshree Ullal - $843.25M of ANET open-market activity in the last 12 months
- Michael N. Intrator - $817.29M of CRWV open-market activity in the last 12 months
- Henry Samueli - $624.63M of AVGO open-market activity in the last 12 months
More Notable Insiders
Other corporate insiders with significant SEC Form 4 track records on InsiderAlpha:
Frequently Asked Questions
Who is Chiao Chieh Huang?
Chiao Chieh Huang is a corporate insider, tracked as Chief Executive Officer, Director, 10% Owner of ENERGY FOCUS, INC/DE (EFOI). InsiderAlpha holds 1 primary Form 4 filing for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did Chiao Chieh Huang last file a Form 4?
The only primary Form 4 on record is dated 19 August 2025.
Has Chiao Chieh Huang been buying or selling stock?
Recorded transactions: 1 open-market purchase ($500K) and 0 open-market sales across all tracked filings.
Where can I see all of Chiao Chieh Huang's SEC filings?
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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