EFOI · Insider Trading

Energy Focus, Inc.

Every open-market purchase and sale reported by EFOI officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.

Form 4 Filings
50
most recent
Open-Market Buys
6
code P
Sales
0
code S
Reporting Insiders
1
current holders
EFOI — Recent Form 4 Transactions (latest 2025-12-31)
FiledInsiderRole TypeSharesValue
2025-12-31 Chiao Chieh Huang Chief Executive Officer Buy +262,009 +$600.00K
2025-08-19 Chiao Chieh Huang Chief Executive Officer Buy +264,550 +$500.00K
2025-06-23 Chiao Chieh Huang Chief Executive Officer Buy +214,124 +$400.00K
2023-08-08 Randy Harrison Gianas VP Operations & Engineering A +1,428 deriv. —
2023-08-08 Chiao Chieh Huang Director A +343,465 +$604.50K
2023-05-02 James Raymond Warren III SVP, GC & Corp. Secretary A +30,000 deriv. —
2023-05-02 Lesley A. Matt Chief Executive Officer A +40,000 deriv. —
2023-04-04 Chiao Chieh Huang Director A +108,502 +$60.86K
2023-04-04 Gina Huang Director A +500,000 +$250.00K
2023-02-28 Gina Huang Director A +1,451,597 +$817.25K
2023-02-28 Gina Huang Director A +803,212 +$400.00K
2023-01-12 Gina Huang Director A +325,803 +$150.00K
2023-01-09 Gina Huang Director A +257,798 +$100.00K
2022-09-29 James Raymond Warren III SVP, GC & Corp. Secretary M +800 —
2022-09-28 Daas Kaj den Director A +10,000 deriv. —
2022-09-20 Lesley A. Matt Chief Executive Officer A +150,000 deriv. —
2022-08-23 Clifford R. Griffin SVP, Corp. Controller & CAO A +6,000 deriv. —
2022-06-23 Jeffery Robert Parker Director M +10,000 —
2022-06-23 Jennifer Y Cheng Director M +5,000 —
2022-06-23 Brian J Lagarto Director M +10,000 —
2022-06-23 Gina Huang Director M +15,000 —
2022-06-23 Philip Politziner Director M +5,000 —
2022-06-23 Stephen Socolof Chairman and Interim CEO M +5,000 —
2022-03-16 Jeffery Robert Parker Director A +10,000 deriv. —
2022-03-01 Brian J Lagarto Director A +10,000 deriv. —
2022-02-23 Gregory S Galluccio Sr. VP, Product Mgmt & Engin. A +15,000 deriv. —
2022-02-17 James Raymond Warren III SVP, GC & Corp. Secretary A +15,000 deriv. —
2022-02-17 Gina Huang Director A +5,000 deriv. —
2022-02-15 James Raymond Warren III SVP, GC & Corp. Secretary A +15,000 deriv. —
2022-02-15 Philip Politziner Director A +5,000 deriv. —
2022-02-15 Stephen Socolof Interim CEO A +5,000 deriv. —
2022-02-15 Tod A Nestor COO and CFO A +20,000 deriv. —
2022-02-15 Jennifer Y Cheng Director A +5,000 deriv. —
2022-02-15 Gina Huang Director A +5,000 deriv. —
2021-09-29 James Raymond Warren III SVP, GC & Corp. Secretary M +800 —
2021-08-27 Philip Politziner Director Buy +3,000 +$10.05K
2021-08-20 Stephen Socolof Director Buy +3,500 +$9.80K
2021-08-18 James Tu Chairman and CEO Buy +5,000 +$13.50K
2021-05-27 Stephen Socolof Director M +10,000 —
2021-05-27 Jennifer Y Cheng Director M +10,000 —
2021-05-27 Jag International Co Ltd. 10%+ Owner M +30,000 —
2021-05-27 Philip Politziner Director M +10,000 —
2021-05-27 Geraldine McManus Director M +10,000 —
2021-04-05 5 ELEMENTS GLOBAL FUND, LP 10%+ Owner C +2,065,230 —
2021-03-26 Gina Huang Director A +10,000 deriv. —
2021-02-23 Philip Politziner Director A +10,000 deriv. —
2021-02-23 Geraldine McManus Director A +10,000 deriv. —
2021-02-23 Tod A Nestor President, CFO A +13,000 deriv. —
2021-02-23 Jennifer Y Cheng Director A +10,000 deriv. —
2021-02-23 James Raymond Warren III SVP, GC & Corp. Secretary A +12,000 deriv. —
EFOI — Current Insider Holders
InsiderRole Shares HeldValue
Chiao Chieh Huang Chief Executive Officer 1,464,007 $5.52M
EFOI Insider Trading FAQ
Who are the insiders at EFOI?
1 officers, directors and 10%+ beneficial owners currently report holdings in EFOI via SEC Form 4.
Are EFOI insiders buying or selling?
Across the 50 most recent Form 4 filings for EFOI, 6 were open-market purchases (code P) and 0 were sales (code S). Sales frequently reflect scheduled 10b5-1 plans or tax withholding rather than a view on the stock.
How current is EFOI insider data?
Form 4 must be filed within two business days of the transaction, so this is close to real time. The most recent EFOI filing is dated 2025-12-31.
How to read Form 4 activity

Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.

Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.

Full filing history and per-insider positions are on the EFOI quote page; the site-wide leaderboard is on the insider transactions hub.

Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.