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Jasper Therapeutics (JSPR) COO buys non-voting convertible preferred shares

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Jasper Therapeutics, Inc. reports that Chief Operating Officer Matthew E. Ros purchased 881 shares of Non-Voting Convertible Preferred Stock on July 20, 2026 in a private placement under a securities purchase agreement. Each preferred share is automatically convertible into 61 shares of Voting Common Stock after stockholder approval, subject to a holder-selected 4.9%–19.9% beneficial ownership cap, with no expiration.

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Insider Ros Matthew E
Role Chief Operating Officer
Bought 881 shs
Type Security Shares Price Value
Purchase Non-Voting Convertible Preferred Stock F1, F2 881 -- --
Holdings After Transaction: Non-Voting Convertible Preferred Stock — 881 shares (Direct)
Footnotes (2)
  1. F1. On July 16, 2026, the Issuer entered into a securities purchase agreement (the "Purchase Agreement") with certain accredited investors, including the Reporting Person. Pursuant to the terms of the Purchase Agreement, the Issuer issued and sold the referenced shares of preferred stock to the Reporting Person in a private placement, which closed on July 20, 2026.
  2. F2. On the third business day following the receipt of stockholder approval of the conversion of the preferred stock, each share of preferred stock shall automatically convert into 61 shares of the Issuer's voting common stock ("Voting Common Stock"), subject to certain limitations, including that a holder of preferred stock is prohibited from converting shares of preferred stock into shares of Voting Common Stock if, as a result of such conversion, such holder, together with its affiliates, would beneficially own more than a specified percentage (to be established by the holder between 4.9% and 19.9%) of the total number of shares of Voting Common Stock issued and outstanding immediately after giving effect to such conversion. The preferred stock has no expiration date.
Preferred shares purchased 881 shares Non-Voting Convertible Preferred Stock acquired on July 20, 2026
Underlying common shares 53,741 shares Voting Common Stock issuable upon conversion of reported preferred shares
Conversion ratio 61 Each preferred share converts into 61 shares of Voting Common Stock
Beneficial ownership cap range 4.9%–19.9% Holder selects maximum post-conversion ownership percentage within this range
Non-Voting Convertible Preferred Stock financial
"purchased 881 shares of Non-Voting Convertible Preferred Stock in a private placement"
A non-voting convertible preferred stock is a share that normally pays a fixed dividend and takes priority over common stock for payouts, but does not grant the holder the right to vote on corporate matters. It can be exchanged later for a set number of common shares, offering the potential to participate in price gains without immediate control—like holding a high-yield loan that can be turned into equity, which matters to investors weighing steady income, upside potential, and possible dilution of ownership.
securities purchase agreement financial
"entered into a securities purchase agreement with certain accredited investors"
A securities purchase agreement is a written contract between a buyer and a seller outlining the terms for buying or selling financial assets such as stocks or bonds. It specifies details like the price, quantity, and conditions of the transaction, similar to a shopping list with agreed-upon terms. For investors, it provides clarity and legal protection when transferring ownership of these financial instruments.
accredited investors financial
"entered into a securities purchase agreement with certain accredited investors"
Accredited investors are individuals or entities considered to have enough financial knowledge and resources to understand and handle more complex and risky investments. They are often allowed to participate in private investment opportunities that are not available to the general public, similar to how experienced players might access exclusive clubs or events. This status helps ensure that investors can manage potential risks and rewards appropriately.
beneficially own financial
"would beneficially own more than a specified percentage of Voting Common Stock"
Beneficially own means having the economic rights and risks of a security—such as the right to receive dividends, sell the shares, or profit from price changes—whether or not your name appears on the official share register. Think of it like renting a car: you use it and reap the benefits even if the title lists someone else. Investors care because beneficial ownership determines who truly controls value, must be disclosed under securities rules, and can signal potential influence or trading activity that affects a stock’s price.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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FAQ

What insider purchase did Jasper Therapeutics (JSPR) disclose for its COO?

Jasper Therapeutics disclosed that Chief Operating Officer Matthew E. Ros purchased 881 shares of Non-Voting Convertible Preferred Stock on July 20, 2026. The purchase occurred in a private placement under a securities purchase agreement with the company and other accredited investors.

What type of security did JSPR's COO acquire and how can it convert?

The COO acquired Non-Voting Convertible Preferred Stock61 shares of Voting Common Stock on the third business day, subject to specified ownership limitations, and the preferred stock has no expiration date.

How many Jasper Therapeutics (JSPR) common shares could this preferred stock represent?

The 881 preferred shares are currently linked to 53,741 shares of Voting Common Stock as the underlying security. This reflects the stated conversion rate of 61 common shares for each preferred share, assuming conversion is permitted under the ownership limitations.

What ownership limits apply to the JSPR preferred stock conversion?

A holder cannot convert preferred stock if it would cause them to beneficially own more than a specified percentage of Voting Common Stock. That percentage must be set by the holder between 4.9% and 19.9% of shares outstanding immediately after conversion.

Was the COO's JSPR transaction made under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirmed, and no footnote states the trade was under a Rule 10b5-1 plan. The transaction is therefore reported as a regular private placement purchase rather than as part of a pre-arranged trading plan.
SEC Form 4
FORM 4UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB APPROVAL
OMB Number:3235-0287
Estimated average burden
hours per response:0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.
1. Name and Address of Reporting Person*
Ros Matthew E

(Last)(First)(Middle)
C/O JASPER THERAPEUTICS, INC.
2200 BRIDGE PKWY, SUITE #102

(Street)
REDWOOD CITY CALIFORNIA 94065

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Jasper Therapeutics, Inc. [ JSPR ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Operating Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/20/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm filed by One Reporting Person
Form filed by More than One Reporting Person
4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year)2A. Deemed Execution Date, if any (Month/Day/Year)3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeVAmount(A) or (D)Price
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year)3A. Deemed Execution Date, if any (Month/Day/Year)4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year)7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Non-Voting Convertible Preferred Stock(1)(2)07/20/2026P881(1)(2) (1)(2) (1)(2)Voting Common Stock53,741(1)(2)881D
Explanation of Responses:
1. On July 16, 2026, the Issuer entered into a securities purchase agreement (the "Purchase Agreement") with certain accredited investors, including the Reporting Person. Pursuant to the terms of the Purchase Agreement, the Issuer issued and sold the referenced shares of preferred stock to the Reporting Person in a private placement, which closed on July 20, 2026.
2. On the third business day following the receipt of stockholder approval of the conversion of the preferred stock, each share of preferred stock shall automatically convert into 61 shares of the Issuer's voting common stock ("Voting Common Stock"), subject to certain limitations, including that a holder of preferred stock is prohibited from converting shares of preferred stock into shares of Voting Common Stock if, as a result of such conversion, such holder, together with its affiliates, would beneficially own more than a specified percentage (to be established by the holder between 4.9% and 19.9%) of the total number of shares of Voting Common Stock issued and outstanding immediately after giving effect to such conversion. The preferred stock has no expiration date.
/s/ Herb Cross, as Attorney-in-Fact07/22/2026
** Signature of Reporting PersonDate
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)