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No insider purchase over the last 90 days. The latest was filed 31 Dec 2025.
Energy Focus, Inc/de: what insiders have been doing
Energy Focus, Inc/de is a Energy company. Its directors and officers file their transactions with SEC (Form 4). Over the twelve months to 18 October 2026, 1 filing were filed, from 1 insider.
The flow runs one way only: 1 insider bought (1 purchase totalling €519k) and nobody sold on the market. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Those buying include 1 chief executive. At €519k, the purchase published on 31 December 2025 by Huang Chiao Chieh is the largest of the period.
With 1 filing in twelve months, the company is quieter than the median of 19 filings across the 5,816 companies we follow on the same exchange. Since 2016, the database holds 6 purchases and no sales by insiders of the company.
The clock since the last published purchase (31 December 2025) now reads 291 days.
In the same sector, recent insider purchases at RGC Resources Inc and Empire Petroleum Corp also feature in our signals. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.
Insider Decl.
28
Thresholds
n/a
Buy Volume
€1M
6 ops. · all time
Sell Volume
n/a
n/a
Who traded when
BuySaleChiao Chieh Huang3 buys
Since the insiders bought
- +28.8%Entry US$2.22 · Close 15 Oct 2026 US$2.86
- -77.0%Entry US$23.10 · Close at T+365 US$5.32
- -75.2%Entry US$21.42 · Close at T+365 US$5.32
Entry is the close on the day after publication, the first price a reader could act on. Prices in the listing currency. Past moves are not a forecast.
This score ranks the purchase within its own market. A position size is suggested only on the venues of the backtested strategy universe; elsewhere, signals stay on watch. Not investment advice.
Fundamental score
Ranked 22,923 of 24,148 companies
16.0
score / 100
Value20
Quality13
FCF yld-7.6%
Earn yld-5.4%
EV/EBITDA·
ROE-50%
Gross mgn19%
Net mgn-29%
Debt/EBITDA·
Pillars2/3
Transparent value + quality ranking, distinct from the insider signal.
Financial data
as of FY 2025FY ended December 2025 · cache
US$3.00
Analyst consensus
Income statement
RevenueUS$3.6M
Gross profitUS$672k19% margin
EBITDA-US$990k-28% margin
Net income-US$1M-23.8% margin
Valuation
P/Book4.8x
Beta2.15
Balance sheet & cash
Market capUS$19.1M
Total debtUS$217k
Free Cash Flow-US$1.5M
Debt / Equity32%
Profitability & ownership
ROE-50.2%
ROA-14.9%
% insiders48.4%
% institutions2.6%
Last declaration on 31 December 2025
Declarations28 total
262,009 shares@ US$2.2929.7% of flowCommon StockSEC:0001628280-25-059166:0
Canonical exit: 24 Feb 2026 (T+90)
264,550 shares@ US$1.8924.6% of flowCommon StockSEC:0001628280-25-040712:0
Canonical exit: 13 Nov 2025 (T+90)
103,627 shares@ US$1.9310.7% of flowCommon StockSEC:0001628280-25-032522:0
Canonical exit: 25 Jun 2025 (T+90)
343,465 shares@ US$1.7631.8% of flowCommon StockSEC:0001964786-23-000002:0
108,502 shares@ US$0.56093.2% of flowCommon StockSEC:0000924168-23-000042:0
500,000 shares@ US$0.5014.4% of flowCommon StockSEC:0000924168-23-000041:0
803,212 shares@ US$0.49823.7% of flowCommon StockSEC:0000924168-23-000026:0
1,451,597 shares@ US$0.56347.3% of flowCommon StockSEC:0000924168-23-000023:0
325,803 shares@ US$0.46048.8% of flowCommon StockSEC:0000924168-23-000008:0
257,798 shares@ US$0.38795.9% of flowCommon StockSEC:0000924168-23-000004:0
800 shares0Common StockSEC:0001556919-22-000006:0
5,000 shares0Common StockSEC:0001350862-22-000003:0
5,000 shares0Common StockSEC:0001600805-22-000004:0
5,000 shares0Common StockSEC:0001669593-22-000003:0
10,000 shares0Common StockSEC:0001913820-22-000006:0
5,000 shares0Common StockSEC:0001555300-22-000003:0
10,000 shares0Common StockSEC:0001479183-22-000007:0
800 shares0Common StockSEC:0001556919-21-000004:0
3,000 shares@ US$3.35100.0% of flowCommon StockSEC:0001669593-21-000006:0
Canonical exit: 23 Nov 2021 (T+90)
3,500 shares@ US$2.80100.0% of flowCommon StockSEC:0001350862-21-000006:0
Canonical exit: 16 Nov 2021 (T+90)
10,000 shares0Common StockSEC:0001669593-21-000004:0
10,000 shares0Common StockSEC:0001769254-21-000004:0
10,000 shares0Common StockSEC:0001555300-21-000004:0
10,000 shares0Common StockSEC:0001600805-21-000005:0
25 of 28 declarations
About Energy Focus, Inc/de
Energy Focus, Inc/DE (NASDAQ: EFOI) is a U.S.-listed micro-cap company in the United States, focused on energy-efficient lighting solutions and, more recently, adjacent energy-storage and power-supply activities. The company traces its roots back to 1985, when it was founded as Fiberstars, Inc., and it adopted the Energy Focus name after the May 2007 merger that created the current corporate structure. Its headquarters and principal manufacturing facility are in Solon, Ohio, giving the business a clearly domestic operating base for investors tracking U.S. industrial and energy transition names.
Historically, Energy Focus built its identity around LED retrofit lighting, with products designed to replace fluorescent, HID, and other legacy technologies in institutional, commercial, and industrial buildings. Over time, the company also established a footprint in the military and maritime markets, where product durability, long lifecycle performance, and strict compliance requirements can create barriers to entry. The current portfolio spans commercial lighting, military and maritime lighting, and newer energy-related offerings such as energy storage systems, solar inverters, and power supply products.
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From a competitive standpoint, Energy Focus operates in an intensely crowded market dominated by far larger global lighting and electrification players. Its strategy relies less on scale and more on specialization, technical differentiation, and application-specific products for demanding end markets, including defense-related, public-sector, and maritime environments. The company highlights a broad LED and controls portfolio, including tubular LED products and ruggedized fixtures designed for harsh operating conditions.
Recent company disclosures suggest a gradual pivot toward energy infrastructure opportunities, including storage and data-center-related applications, while continuing to support its legacy lighting businesses. SEC filings in 2025 also show multiple private placements during the year, including transactions in March, June, August, and November 2025, indicating that the company has relied on repeated equity financing to support working capital and execution. For investors, EFOI remains a highly speculative small-cap name: it offers exposure to a niche technology platform and potential energy-transition optionality, but it also carries meaningful dilution, execution, and financing risk. Its listing on NASDAQ in the United States reinforces its profile as a volatile, event-driven equity rather than a mature dividend or cash-flow story.
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