Jasper Therapeutics

JSPR on Nasdaq. Market value $20m.

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Nothing stands out yet.

Read the warning sign in its own filings

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Who owns it

None of the long-term investors we follow own it. 45 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

10 investors own more than 5%.

  • at least 9.9%+0.0 pts
    (filed with 11 related holders)
    Since 17 August 2026
  • Velan Capital Management LLC
    at least 9.9%+0.3 pts
    (filed with 10 related holders)
    Since 16 July 2026
    What they said

    Item 4 is hereby amended to add the following: On July 16, 2026, the Issuer acquired Kira Pharmaceuticals ("Kira"), a Cayman Islands exempted company, in accordance with the terms of the Agreement and Plan of Merger, dated July 16, 2026 (the "Merger Agreement"), by and among the…

    Read the filing
  • Since 30 September 2025
  • Anders Hove
    Passive investor
    at least 5.3%−1.1 pts
    (filed with 4 related holders)
    Since 23 January 2026
  • Morgan Stanley
    Passive investor
    at least 4.8%−2.2 pts
    (filed with 1 related holder)
    Since 31 March 2026
  • at least 4.7%−0.4 pts
    (filed with 1 related holder)
    Since 30 September 2025
  • The Carlyle Group Inc.
    Passive investor
    at least 3.8%
    (filed with 9 related holders)
    Since 18 February 2026
  • Qiming U.S. Healthcare Fund II, L.P.
    Passive investor
    at least 3.3%
    (filed with 3 related holders)
    Since 30 September 2025
  • Integrated Core Strategies (US) LLC
    Passive investor
    at least 1.7%−4.1 pts
    (filed with 3 related holders)
    Since 30 June 2026
  • Soleus Capital Management, L.P.
    Passive investor
    at least 1.0%−9.0 pts
    (filed with 8 related holders)
    Since 31 March 2026
  • BlackRock, Inc.
    Passive investor
    Sold down below 5%
    Since 30 June 2025
  • Sold down below 5%
    Since 31 March 2026

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 Jasper Therapeutics’ 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 30 Mar 2026, plus the 10-Q filed 14 Aug 2026 and 11 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.

    “Given our recurring losses from operations and negative cash flows, the potential risk of having to repurchase the Non-Voting Convertible Preferred Stock issued in the Financing if we are unable to obtain stockholder approval to convert it to Common Stock within 12 months and based on our current operating plan, we have concluded that there is substantial doubt about our ability to continue as a going concern within one year from the date of filing of this Quarterly Report.”
    Show the full paragraph
    We have incurred significant losses and negative cash flows from operations since our inception. As of June 30, 2026, we had an accumulated deficit of $320.6 million. Given our recurring losses from operations and negative cash flows, the potential risk of having to repurchase the Non-Voting Convertible Preferred Stock issued in the Financing if we are unable to obtain stockholder approval to convert it to Common Stock within 12 months and based on our current operating plan, we have concluded that there is substantial doubt about our ability to continue as a going concern within one year from the date of filing of this Quarterly Report. We expect to finance our future cash needs through equity or debt financings, collaborations or a combination of these approaches, and given the imminent need for additional funding to continue to fund operations in the near-term, we are actively seeking additional capital to extend our cash runway. The sale of equity or convertible debt securities may result in dilution to our stockholders, and, in the case of preferred equity securities or convertible debt, those securities could provide for rights, preferences or privileges senior to those of our common stock. Debt financings may subject us to covenant limitations or restrictions on our ability to take specific actions, such as incurring additional debt or making capital expenditures. Our ability to raise additional funds may be adversely impacted by negative global economic conditions and any disruptions to and volatility in the credit and financial markets in the United States and worldwide or other factors. There can be no assurance that we will be successful in acquiring additional funding at levels sufficient to fund our operations or on terms favorable or acceptable to us. While we routinely evaluate cost reduction measures to proactively manage cash burn, if we are unable to obtain adequate financing when needed or on terms favorable or acceptable to us, we may be forced to take broader actions such as to delay, reduce the scope of or eliminate one or more of our research and development programs.

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