Zura Bio

ZURA on Nasdaq. Zura Bio develops medicines for patients with autoimmune and inflammatory diseases. Market value $377m.

Watch this stockFree. We tell you when something changes.

Price checks use the past 12 months to June 2026. Some use the latest annual report instead, as marked. Quality checks use five annual reports, the latest for the year to December 2025.

We can't read total debt from the filing, so debt is left out.

Should I look at this?

Not a fit for our list right now

See Health care stocks that passed both tests

This is not advice. Check the numbers below.

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Cash yield
annual report to December 2025
-17.1%low

For every $100 of what the whole company costs, it produced $-17.11 of spare cash last year. 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 December 2025
n/a

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

Quality score: not known. Price score: 0 of 100. Our list needs 70 on quality and 60 on price.

$3.96 a share, 26% above its 1-year low

Over the past year the price has ranged from $3.15 to $7.44.

Pays no dividend

Prices from Tuesday’s close (6 October).

Five years of cash, in billions

n/a
n/a
-0.0
-0.1
2022202320242025
Revenue
n/an/an/an/a
Operating margin
n/an/an/an/a
Debt to equity
n/an/an/an/a
Shares outstanding
0.04bn0.07bn0.07bn0.10bn

Health checks

  • Free cash flow positive0 of 2 years
  • Accounting looks honest (Beneish)Not enough data
  • Financial strength (Piotroski)Not enough data
  • Profit backed by cash (accruals)Yes
  • DebtUnknown
  • Revenue growth, five yearsUnknown
  • Buying back its own sharesNo, 120% more shares since 2022

The quarter to June 2026

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

  • A loss of $26 million, compared with a loss of $16 million a year ago.
  • 34% more shares than a year ago. Each share owns a bit less of the company.
Profit by quarter
Profit by quarter
Quarter toAmount
September 2024-$21m
December 2024-$14m
March 2025-$17m
June 2025-$16m
September 2025-$18m
December 2025-$17m
March 2026-$24m
June 2026-$26m

From the company's quarterly reports to the SEC.

Dates

Next results (estimated)
n/a
Last annual report (10-K)
19 March 2026
Next quarterly (estimated, 10-Q)
10 November 2026

Who owns it

None of the long-term investors we follow own it. 95 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

8 investors own more than 5%.

  • AI Biotechnology LLC
    Passive investor
    at least 18.2%−1.7 pts
    (filed with 3 related holders)
    Since 26 February 2026
  • Athanor Capital
    Passive investor
    at least 15.7%0.0 pts
    (filed with 1 related holder)
    Since 23 January 2026
    What they said

    The securities reported herein were acquired by the Reporting Persons for investment purposes in the ordinary course of business. The Reporting Persons acquired the securities without the purpose or effect of changing or influencing the control of the Issuer and do not have any…

    Read the filing
  • UGS Capital LLC
    Passive investor
    15.7%
    Since 29 December 2025
  • Venrock Healthcare Capital Partners III, L.P.
    Passive investor
    at least 9.9%0.0 pts
    (filed with 6 related holders)
    Since 31 March 2026
  • at least 9.9%+1.3 pts
    (filed with 2 related holders)
    Since 31 March 2026
  • at least 4.9%
    (filed with 3 related holders)
    Since 31 December 2024
  • at least 4.4%−0.7 pts
    (filed with 2 related holders)
    Since 31 March 2026
  • at least 3.2%
    (filed with 2 related holders)
    Since 31 December 2024
  • JPMORGAN CHASE & CO
    Passive investor
    Sold down below 5%
    Since 30 April 2026
  • Pfizer Inc. 13-5315170
    Passive investor
    Sold down below 5%
    Since 31 December 2024
  • Deep Track Capital, LP
    Passive investor
    Sold down below 5%
    Since 30 September 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.

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.