STOCK TITAN

CEO-linked entity boosts Tempest (TPST) stake with stock and new warrants

Filing Impact
(Very High)
Filing Sentiment
(Positive)
Form Type
4

Rhea-AI Filing Summary

Tempest Therapeutics CEO-linked entity buys stock and warrants. Factor Bioscience Inc. acquired 231,482 shares of Tempest Therapeutics common stock and warrants to purchase 462,964 additional shares under a Securities Purchase Agreement dated March 20, 2026. The combined purchase price was $2.16 for each share plus an accompanying warrant.

The Series A and Series B Warrants each cover 231,482 underlying shares at an exercise price of $2.16 per share. Both warrant series become exercisable only after stockholder approval; Series A Warrants then run for five years, and Series B Warrants for twenty-four months. Reporting person Matthew Angel, Tempest’s CEO and President, is the majority stockholder and Chairman of Factor and exercises voting and investment power over Factor’s holdings.

Positive

  • None.

Negative

  • None.
Insider Angel Matthew
Role CEO and President
Bought 694,446 shs ($500K)
Type Security Shares Price Value
Purchase Series A Warrant (right to buy) 231,482 $0.00 --
Purchase Series B Warrant (right to buy) 231,482 $0.00 --
Purchase Common Stock 231,482 $2.16 $500K
Holdings After Transaction: Series A Warrant (right to buy) — 231,482 shares (Indirect, By Factor Bioscience Inc.); Series B Warrant (right to buy) — 231,482 shares (Indirect, By Factor Bioscience Inc.); Common Stock — 231,482 shares (Indirect, By Factor Bioscience Inc.)
Footnotes (1)
  1. On March 24, 2026, Factor Biosciences Inc. ("Factor") acquired 231,482 shares of common stock, par value $0.001 per share, of Tempest Therapeutics, Inc. ("Common Stock") and warrants to purchase 462,964 shares of Common Stock (the "Warrants"), pursuant to a Securities Purchase Agreement by and between the Issuer, Factor and two institutional investors, dated as of March 20, 2026. The combined purchase price per one share of Common Stock and accompanying one warrant to purchase one share of Common Stock was $2.16. The Reporting Person is the majority stockholder and Chairman of the Board of Directors of Factor and exercises voting and investment power over the shares held by Factor. The Series A Warrants are subject to the approval of the Company's stockholders. The Series A Warrants will become exercisable on the effective date of the stockholder approval and have a term of five years from the effective date of the stockholder approval. The Series B Warrants are subject to the approval of the Company's stockholders. The Series B Warrants will become exercisable on the effective date of the stockholder approval and have a term of twenty-four months from the effective date of the stockholder approval.
Common shares purchased 231,482 shares Factor Bioscience Inc. acquisition on March 24, 2026
Combined purchase price $2.16 per share plus warrant One common share and one accompanying warrant
Total warrant coverage 462,964 shares Warrants to purchase Tempest common stock
Series A Warrant term 5 years From effective date of stockholder approval
Series B Warrant term 24 months From effective date of stockholder approval
Warrant exercise price $2.16 per share Series A and Series B Warrants for common stock
Securities Purchase Agreement financial
"pursuant to a Securities Purchase Agreement by and between the Issuer, Factor and two institutional 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.
Series A Warrants financial
"The Series A Warrants are subject to the approval of the Company's stockholders."
Series A warrants are financial tools that give the holder the right to buy shares of a company at a specific price within a certain period. They are often issued alongside investments to provide additional potential profit if the company's value increases. For investors, they can offer a chance to benefit from future growth without committing immediate capital to buying shares.
Series B Warrants financial
"The Series B Warrants are subject to the approval of the Company's stockholders."
Series B warrants are contracts issued alongside a company's Series B financing that give the holder the right to buy a set number of shares at a fixed price within a specified time. For investors, they matter because they can provide leveraged upside if the company grows, or they can dilute existing shareholders when exercised—like a coupon promising a future share at a known price that can add value or change ownership stakes.
stockholder approval financial
"are subject to the approval of the Company's stockholders. The Series A Warrants will become exercisable on the effective date of the stockholder approval"
Stockholder approval is formal consent given by a company’s shareholders, usually through a vote at a meeting or by proxy, for major actions such as mergers, asset sales, changes to corporate structure, or amendments to governance rules. Investors pay attention because the vote can enable or block steps that materially change a company’s direction, ownership or value—like neighbors voting to allow a major renovation that would alter a building’s use and worth.
voting and investment power financial
"exercises voting and investment power over the shares held by Factor."
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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*
Angel Matthew

(Last)(First)(Middle)
C/O TEMPEST THERAPEUTICS, INC.
2000 SIERRA POINT PARKWAY, SUITE 400

(Street)
BRISBANE CALIFORNIA 94005

(City)(State)(Zip)

UNITED STATES

(Country)
2. Issuer Name and Ticker or Trading Symbol
Tempest Therapeutics, Inc. [ TPST ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
XDirectorX10% Owner
XOfficer (give title below)Other (specify below)
CEO and President
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
03/24/2026
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
Common Stock03/24/2026P231,482A(1)$2.16(2)231,482IBy Factor Bioscience Inc.(3)
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
Series A Warrant (right to buy)$2.1603/24/2026P(1)231,482 (4) (4)Common Stock231,482(2)231,482IBy Factor Bioscience Inc.(3)
Series B Warrant (right to buy)$2.1603/24/2026P(1)231,482 (5) (5)Common Stock231,482(2)231,482IBy Factor Bioscience Inc.(3)
Explanation of Responses:
1. On March 24, 2026, Factor Biosciences Inc. ("Factor") acquired 231,482 shares of common stock, par value $0.001 per share, of Tempest Therapeutics, Inc. ("Common Stock") and warrants to purchase 462,964 shares of Common Stock (the "Warrants"), pursuant to a Securities Purchase Agreement by and between the Issuer, Factor and two institutional investors, dated as of March 20, 2026.
2. The combined purchase price per one share of Common Stock and accompanying one warrant to purchase one share of Common Stock was $2.16.
3. The Reporting Person is the majority stockholder and Chairman of the Board of Directors of Factor and exercises voting and investment power over the shares held by Factor.
4. The Series A Warrants are subject to the approval of the Company's stockholders. The Series A Warrants will become exercisable on the effective date of the stockholder approval and have a term of five years from the effective date of the stockholder approval.
5. The Series B Warrants are subject to the approval of the Company's stockholders. The Series B Warrants will become exercisable on the effective date of the stockholder approval and have a term of twenty-four months from the effective date of the stockholder approval.
Remarks:
This transaction is being reported late due to an inadvertent administrative oversight.
/s/ Matthew Angel06/23/2026
** 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)

FAQ

What did Tempest Therapeutics (TPST) disclose in this Form 4 filing?

Tempest disclosed that Factor Bioscience Inc. acquired 231,482 common shares and warrants for 462,964 additional shares at a combined price of $2.16 per share plus warrant, under a Securities Purchase Agreement dated March 20, 2026.

Who is the insider involved in the Tempest Therapeutics (TPST) Form 4?

The reporting person is Matthew Angel, Tempest’s CEO, President, director and a ten percent owner. He is the majority stockholder and Chairman of Factor Bioscience Inc. and exercises voting and investment power over the Tempest shares held by Factor.

How many Tempest Therapeutics (TPST) shares and warrants were bought?

Factor Bioscience Inc. bought 231,482 Tempest common shares and received Series A and B Warrants to purchase a total of 462,964 additional common shares, each warrant series covering 231,482 underlying shares at a $2.16 per-share exercise price.

What price was paid in the Tempest Therapeutics (TPST) insider purchase?

The combined purchase price was $2.16 for each Tempest common share together with an accompanying warrant to buy one additional share. This pricing applied to the 231,482 shares of common stock and the related Series A and Series B Warrants acquired.

When do the Tempest Therapeutics (TPST) Series A Warrants become exercisable?

The Series A Warrants become exercisable on the effective date of stockholder approval and carry a five-year term from that approval date. Until stockholders approve them, the Series A Warrants cannot be exercised into Tempest common shares.

How long are Tempest Therapeutics (TPST) Series B Warrants outstanding after approval?

The Series B Warrants become exercisable on the effective date of stockholder approval and remain outstanding for twenty-four months from that effective date. They permit Factor Bioscience Inc. to purchase additional Tempest common shares during that two-year term.