Callan JMB

CJMB on Nasdaq. Market value $14m.

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Should I look at this?

Look carefully before going further

Why it could be worth it

Nothing stands out yet.

Read the warning sign in its own filings

This is not advice.

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Who owns it

None of the long-term investors we follow own it. 15 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

No one has reported a stake above 5% since December 2024.

  • Bard Associates, Inc.
    Passive investor
    Sold down below 5%
    Since 13 May 2026
  • Ionic Ventures, LLC
    Passive investor
    Sold down below 5%
    Since 31 March 2025

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

What insiders did

In the last 12 months, 4 insiders bought $165,499 of shares on the open market.

  • Croyle David J
    Chief Medical Officer
    Bought
    Date
    20 March 2026
    Shares
    10,195
    Price
    $1.75
    Value
    $17,841
  • Croyle David J
    Chief Medical Officer
    Bought
    Date
    6 March 2026
    Shares
    14,805
    Price
    $1.76
    Value
    $26,057
  • Dial Gerald
    Director
    Bought
    Date
    30 December 2025
    Shares
    10,000
    Price
    $0.76
    Value
    $7,600
  • Dial Gerald
    Director
    Bought
    Date
    30 December 2025
    Shares
    2,000
    Price
    $1.20
    Value
    $2,409
  • Williams Wayne D
    CEO, Chairman and President, Director
    Bought
    Date
    16 December 2025
    Shares
    5,000
    Price
    $1.73
    Value
    $8,650
  • Williams Wayne D
    CEO, Chairman and President, Director
    Bought
    Date
    15 December 2025
    Shares
    10,810
    Price
    $1.70
    Value
    $18,377
  • Williams Wayne D
    CEO, Chairman and President, Director
    Bought
    Date
    12 December 2025
    Shares
    4,926
    Price
    $1.75
    Value
    $8,621
  • Williams Wayne D
    CEO, Chairman and President, Director
    Bought
    Date
    11 December 2025
    Shares
    62
    Price
    $1.79
    Value
    $111
  • Williams Wayne D
    CEO, Chairman and President, Director
    Bought
    Date
    11 December 2025
    Shares
    30,856
    Price
    $1.65
    Value
    $50,912
  • Williams Wayne D
    CEO, Chairman and President, Director
    Bought
    Date
    10 December 2025
    Shares
    13,689
    Price
    $1.65
    Value
    $22,587

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.

2 serious warning signs in Callan JMB’s filings.

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 31 Mar 2026, plus the 10-Q filed 14 Aug 2026 and 8 later 8-Ks.

  • Doubt it can keep going

    Serious

    The company or its auditor warned it may not have enough money to last the next year.

    “These conditions raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date these condensed consolidated financial statements are issued.”
    Show the full paragraph
    As of June 30, 2026, the Company had an accumulated deficit of $(14,706,991) and negative cash flow from operating activities of $(2,075,943) for the six months ended June 30, 2026. In addition, the Company incurred a net loss of $(4,446,977) for the six months ended June 30, 2026 and had cash and cash equivalents of $860,273 as of June 30, 2026. The Company has recurring losses, has not yet generated sufficient cash flows from operations to fund its activities, and expects to continue incurring operating losses and using cash in support of its business plan. These conditions raise substantial doubt about the Company’s ability to continue as a going concern within one year after the date these condensed consolidated financial statements are issued. Accordingly, the Company may be unable to realize its assets and discharge its liabilities in the normal course of business.

    From the 10-Q filed 14 August 2026, Part I, Item 2. Management's Discussion and Analysis. Read it in the filing

  • Weak checks on its own accounts

    Serious

    The company said its checks on its own accounts did not work at the end of its latest quarter. Mistakes could slip into the numbers.

    “Based on that evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that as of June 30, 2026, our disclosure controls and procedures were not effective.”
    Show the full paragraph
    Our Chief Executive Officer and Chief Financial Officer conducted an evaluation of the effectiveness of the design and operation of our disclosure controls and procedures, as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the “ Exchange Act ”), as of June 30, 2026, to ensure that information required to be disclosed by us in the reports filed or submitted by us under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the rules and forms of the SEC, including to ensure that information required to be disclosed by us in the reports filed or submitted by us under the Exchange Act is accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that as of June 30, 2026, our disclosure controls and procedures were not effective. Management identified a material weakness on the timeliness and consistency of execution of oversight reviews and governance impacting the performance of certain internal control activities, which affected the Company’s ability to consistently achieve its control objectives. During the year ended December 31, 2025, the Company continued to develop and refine its disclosure controls and other procedures designed to ensure that information required to be disclosed in reports filed with the SEC is recorded, processed, summarized, and reported within the time periods specified by SEC rules and forms. In response to the identified ineffectiveness of controls, management has worked on enhancing oversight and governance processes, improving documentation of accounting policies and procedures, and engaged experienced third-party advisors to support GAAP compliance and financial reporting. While progress was made during the year ended December 31, 2025 and has continued through the six months ended June 30, 2026, remediation of the material weakness will not be considered complete until the redesigned controls have operated effectively for a sustained period and have been validated through testing.

    From the 10-Q filed 14 August 2026, Part I, Item 4. Controls and Procedures. Read it in the filing

  • One big customer

    Worth knowing

    One customer brings in a big share of sales: 58% last year. Losing that customer would hurt.

    “For the year ended December 31, 2025, three customers, Customer 1 (58%), Customer 2 (10%), and Customer 3 (11%), accounted for approximately 79% of total revenues generated.”

    From the 10-K filed 31 March 2026, Item 1A. Risk Factors. Read it in the filing

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.

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.