Lantronix

LTRX on Nasdaq. Lantronix sells edge computing hardware, software, and services to defense and industrial customers. Market value $333m.

Watch this stockFree. We tell you when something changes.

Price checks use the past 12 months to June 2026. Quality checks use five annual reports, the latest for the year to June 2026.

Should I look at this?

Not a fit for our list right now

See Technology stocks that passed both tests

This is not advice. Check the numbers below.

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Cash yield
past 12 months to June 2026
2.8%low

For every $100 of what the whole company costs, it produced $2.78 of spare cash in the past 12 months. A savings account pays about $4.

Price to profit
past 12 months to June 2026
n/a

The filings do not give us enough to work this out.

Return on capital
five annual reports to June 2026
-5.5%five-year median

Each dollar kept in the business earns -6 cents a year. Above 10 is good.

Quality score: 52 of 100. Price score: 15 of 100. Our list needs 70 on quality and 60 on price.

$7.13 a share, 63% above its 1-year low

Over the past year the price has ranged from $4.37 to $8.75.

Pays no dividend

Prices from Monday’s close (5 October).

Five years of cash, in billions

-0.0
-0.0
0.0
0.0
0.0
20222023202420252026
Revenue
$130m$131m$160m$123m$121m
Operating margin
-3.9%-5.1%-1.8%-8.9%-3.4%
Debt to equity
0.220.280.240.200.00
Shares outstanding
0.04bn0.04bn0.04bn0.04bn0.05bn

Health checks

  • Free cash flow positive3 of 5 years
  • Accounting looks honest (Beneish)Nothing unusual
  • Financial strength (Piotroski)4 of 9
  • Profit backed by cash (accruals)Yes
  • Debt0.00× equity
  • Revenue growth, five yearsStrong, 11.1% a year
  • Buying back its own sharesNo, 28% more shares since 2022

The quarter to June 2026

How the business did, compared with the same quarter a year earlier.

  • Sales: $31 million last quarter, up 8% on a year ago.
  • A loss of $269,000, compared with a loss of $3 million a year ago.
  • It loses 3 cents on each $1 of sales, compared with 9 cents a year earlier.
  • Spare cash over the past 12 months: $9 million, up from $7 million.
  • It has $60 million more cash than debt, up from $5 million a year ago.
  • Sales grew on a year ago in 2 of the last 4 quarters.
Sales by quarter
Sales by quarter
Quarter toAmount
September 2024$34m
December 2024$31m
March 2025$29m
June 2025$29m
September 2025$30m
December 2025$30m
March 2026$30m
June 2026$31m
Profit by quarter
Profit by quarter
Quarter toAmount
September 2024-$3m
December 2024-$2m
March 2025-$4m
June 2025-$3m
September 2025-$1m
December 2025-$1m
March 2026-$1m
June 2026-$269,000

From the company's quarterly reports to the SEC.

Dates

Next results (estimated)
n/a
Last annual report (10-K)
27 August 2026
Next quarterly (estimated, 10-Q)
6 August 2026

Who owns it

3 long-term investors we follow own it, up from 2 last quarter. 121 funds in all.

Jun '25
Dec '25
Jun '26
Largest holders overall

From 13F filings for the quarter ended 30 June 2026.

Big holders and activists

4 investors own more than 5%; 1 of them is pushing for change.

  • at least 7.1%
    (filed with 3 related holders)
    Since 18 June 2026
  • BRUSCHA BERNHARD
    at least 6.0%
    (filed with 2 related holders)
    Since 1 December 2025
    What they said

    Item 4 is hereby amended to add the following: On December 1, 2025, TL Investment transferred to Mr. Bruscha all 5,166,471 shares of Common Stock of the Issuer held by TL Investment. On that same date, Mr. Bruscha gifted 3,000,000 shares, to TL Stiftung, as a gift. Accordingly,…

    Read the filing
  • STRIDER CAPITAL, LLC
    Passive investor
    5.5%
    Since 30 June 2026
  • Haluk L. Bayraktar
    Activist
    Wants the company sold
    at least 3.0%−0.6 pts
    (filed with 3 related holders)
    Since 10 March 2026
    What they said

    As described in the Original Schedule 13D, the Reporting Persons originally acquired the shares in the Issuer because they believed the Shares were materially undervalued and represented an attractive investment opportunity. As a result of the foregoing and as disclosed in…

    Read the filing
  • TL Stiftung
    Passive investor
    Sold down below 5%
    Since 29 January 2026

From Schedule 13D and 13G filings: anyone owning more than 5% must file one.

What insiders did

In the last 12 months, 1 insider bought $77,685 of shares on the open market. 1 sold $89,840.

  • Awsare Saleel
    President & CEO, Director
    Bought
    Date
    9 September 2026
    Shares
    15,000
    Price
    $5.18
    Value
    $77,685
  • Gurusamy Mathi
    Chief Product & Strategy Ofcr
    Sold
    Date
    13 March 2026
    Shares
    14,467
    Price
    $6.21
    Value
    $89,840

From Form 4 filings: insiders must report trades in their own company's shares within two days.

Warning signs in its filings

Problems the company itself reported to the SEC, in its own words.

None of the warning signs we check for were found.

We look for five warning signs: doubt it can keep going, weak checks on its own accounts, a notice that its past accounts can't be relied on, a change of auditor, and one customer bringing in a big share of sales. We don't check lawsuits, investigations or debt yet.

We checked the auditor's report, internal controls, restatement notices, auditor changes and big customers in the 10-K filed 27 Aug 2026, and no later 8-Ks.

A 10-K is the yearly report every US company files with the SEC. An 8-K is a short notice of a big event.

What could go wrong

Cheap for a reason is the question the numbers cannot answer.

Whether the price already reflects the risks is what the deep dive is for.

The deep dive

Everything above is arithmetic on public filings. The deep dive reads the last ten years of annual reports, the proxy statements, and the earnings calls, then argues the case the way Buffett, Klarman, and Hohn would, and checks every claim against the source.

  • What the business is worth, as a range, and the margin of safety at today’s price
  • Prices to start buying, buy, and buy hard
  • The three things that would make this a mistake
  • Every number footnoted to the filing it came from
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What a finished deep dive looks like

Not advice. Numbers on this page come from SEC filings and are updated each night; prices are updated again after the US market closes. The five-year figures are rounded.