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In8bio

INAB on Nasdaq. Market value $14m.

Watch this stockFree. We tell you when something changes.

Should I look at this?

Look carefully before going further

Why it could be worth it

Nothing stands out yet.

What to watch out for

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. 21 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

7 investors own more than 5%.

  • LYTTON LAURENCE W
    Passive investor
    at least 10.0%0.0 pts
    (filed with 1 related holder)
    Since 30 June 2026
  • at least 9.9%+7.3 pts
    (filed with 2 related holders)
    Since 31 December 2025
  • at least 9.9%
    (filed with 3 related holders)
    Since 19 December 2025
  • Franklin Resources, Inc.
    Passive investor
    at least 9.4%
    (filed with 3 related holders)
    Since 31 December 2025
  • at least 7.9%
    (filed with 2 related holders)
    Since 22 December 2025
  • at least 4.0%−6.0 pts
    (filed with 18 related holders)
    Since 22 December 2025
  • EMILY FAIRBAIRN
    at least 2.2%−5.3 pts
    (filed with 2 related holders)
    Since 27 May 2026
  • Orin Hirschman
    Passive investor
    Sold down below 5%
    Since 30 June 2025
  • William Tai-Wei Ho
    Passive investor
    Sold down below 5%
    Since 30 June 2025
  • Transcend Partners Opportunity Fund LLC
    Passive investor
    Sold down below 5%
    Since 30 June 2025

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

What insiders did

No insider bought or sold on the open market in the last 12 months.

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.

1 serious warning sign in In8bio’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 12 Mar 2026, plus the 10-Q filed 6 Aug 2026 and 3 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.

    “Based on the Company’s business strategy, its existing cash of $ 18.0 million as of June 30, 2026 is not anticipated to fund the Company’s projected operating expenses and capital expenditure requirements for a period of at least 12 months from the date of issuance of these condensed financial statements, and accordingly, there is substantial doubt about the Company’s ability to continue to operate as a going concern.”
    Show the full paragraph
    The Company has not yet generated product sales and as a result has experienced operating losses since inception. The Company expects to incur additional losses in the future as it advances its product candidates through clinical trials, grows its clinical, regulatory and quality capabilities, and incurs costs associated with operating as a public company. The actual amount of cash that the Company will need to operate is subject to many factors. Based on the Company’s business strategy, its existing cash of $ 18.0 million as of June 30, 2026 is not anticipated to fund the Company’s projected operating expenses and capital expenditure requirements for a period of at least 12 months from the date of issuance of these condensed financial statements, and accordingly, there is substantial doubt about the Company’s ability to continue to operate as a going concern.

    From the 10-Q filed 6 August 2026, Part I, Item 1. Financial Statements. 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.