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[8-K] CERO THERAPEUTICS HOLDINGS, INC. Reports Material Event

Filing Impact
(Moderate)
Filing Sentiment
(Neutral)
Form Type
8-K

Rhea-AI Filing Summary

CERo Therapeutics Holdings, Inc. entered into a financing deal by issuing a 10% convertible promissory note with a principal face value of $500,000 to Keystone Capital Partners, LLC for a purchase price of $400,000.

The Note allows the company to borrow up to an aggregate $1,000,000 and matures on April 27, 2027. Keystone can convert principal and accrued interest into common stock at the lesser of $0.05 per share or 80% of the average of the five lowest intraday trading prices over the prior 20 days, subject to a 4.99% beneficial ownership limitation.

The securities were issued in a private transaction relying on exemptions from registration under Sections 4(a)(2) and 3(a)(9) of the Securities Act, with a requirement that the company file a registration statement to cover resales of the conversion shares.

Positive

  • None.

Negative

  • None.
Item 1.01 Entry into a Material Definitive Agreement Business
The company signed a significant contract such as a merger agreement, credit facility, or major partnership.
Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement Financial
The company incurred a new significant debt or off-balance-sheet obligation.
Item 3.02 Unregistered Sales of Equity Securities Securities
The company sold equity securities in a private placement or other unregistered transaction.
Item 9.01 Financial Statements and Exhibits Exhibits
Financial statements, pro forma financial information, and exhibit attachments filed with this report.
Note purchase price $400,000 Cash paid by Keystone Capital Partners for the Note
Note principal face value $500,000 Principal amount of convertible promissory note
Maximum borrowings under Note $1,000,000 Aggregate amount CERo may borrow
Interest rate 10% per annum Interest on outstanding principal of the Note
Note maturity date April 27, 2027 Stated maturity of the Note
Fixed conversion price cap $0.05 per share Maximum per-share conversion price for the Note
Market-based conversion discount 80% of price average 80% of average of 5 lowest intraday prices over 20 days
Beneficial ownership limit 4.99% Cap on Keystone’s post-conversion ownership
convertible promissory note financial
"issued and sold a convertible promissory note for an purchase price of $400,000"
A convertible promissory note is a loan a company takes now that can later be turned into shares instead of being repaid in cash. Think of it as lending money with the option to accept ownership in the business down the road; that matters to investors because it affects who gets paid first, how much ownership existing shareholders keep, and the company’s future valuation and cash needs. Terms such as conversion price, interest and maturity determine the financial impact.
beneficial ownership limitation financial
"subject to certain adjustments and limitations, including a beneficial ownership limitation of 4.99%"
A beneficial ownership limitation is a rule that caps the percentage of a company’s shares an investor can be treated as owning or controlling for voting, regulatory or tax purposes. It matters to investors because it can restrict how many shares a person or group can buy or vote, affect takeover chances, and influence share liquidity and value — like a speed limit that prevents any single driver from taking over the whole road.
Section 4(a)(2) of the Securities Act regulatory
"The issuance of the Note was made in reliance upon the exemption from registration provided by Section 4(a)(2) of the Securities Act"
A legal exemption that allows a company to sell securities directly to a limited group of buyers without registering the offering with the Securities and Exchange Commission. Think of it like a private sale among known parties rather than a public auction: it can speed fundraising and reduce disclosure requirements, but it also means less public information, lower liquidity and resale restrictions—factors investors should consider when weighing risk and exit options.
accredited investor financial
"the Lender is an accredited investor"
An accredited investor is an individual or entity that meets certain financial criteria, such as having a high income or significant net worth, allowing them to invest in private or less regulated investment opportunities. This status matters because it grants access to investments that are often riskier or less available to the general public, reflecting a higher level of financial knowledge or resources.
Form S-1 or S-3 regulatory
"prepare and file with the U.S. Securities and Exchange Commission ... a registration statement on Form S-1 or S-3"
Rule 506(b) regulatory
"and Rule 506(b) promulgated thereunder"
Rule 506(b) is a U.S. securities exemption that lets companies sell shares or debt privately without full public registration, provided sales are primarily to accredited investors, up to 35 non‑accredited but financially knowledgeable buyers, and there is no public advertising or solicitation. It matters to investors because offerings under 506(b) usually include less public disclosure than registered securities—like buying from a private seller rather than a retail store—so buyers must do more of their own fact‑checking and rely on their financial sophistication.
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UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

 

FORM 8-K

 

CURRENT REPORT

Pursuant to Section 13 or Section 15(d)

of the Securities Exchange Act of 1934

 

Date of Report (Date of earliest event reported): April 27, 2026

 

CERO THERAPEUTICS HOLDINGS, INC.

(Exact name of registrant as specified in its charter)

 

Delaware   001-40877   81-4182129
(State or other jurisdiction of
incorporation or organization)
  (Commission File Number)   (I.R.S. Employer
Identification Number)

 

201 Haskins Way, Suite 230,
South San Francisco, CA
  94080
(Address of principal executive offices)   (Zip Code)

 

(650) 407-2376

Registrant’s telephone number, including area code

 

Not applicable

(Former name or former address, if changed since last report)

 

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

 

Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

 

Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

 

Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

 

Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

 

Securities registered pursuant to Section 12(b) of the Act:

 

Title of each class   Trading Symbol(s)   Name of each exchange on which registered
Common Stock, par value $0.0001 per share   CERO   None
Warrants, each warrant exercisable for one two-thousandths of a share of Common Stock   CEROW   None

 

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 or Rule 12b-2 of the Securities Exchange Act of 1934.

 

Emerging growth company

 

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

 

 

 

 

 

Item 1.01 Entry into a Material Definitive Agreement.

 

On April 27, 2026, CERo Therapeutics Holdings, Inc., a Delaware corporation (the “Company”) issued and sold a convertible promissory note for an purchase price of $400,000, having a principal face value of $500,000 (the “Note”) to Keystone Capital Partners, LLC (“Lender”). Pursuant to the Note, the Company may borrow, from time to time thereunder, up to a maximum aggregate amount not to exceed a sum of $1,000,000. The Note bears interest at a rate of 10% per annum, matures on April 27, 2027, and is convertible into shares of the Company’s common stock, par value $0.0001 per share (the “Common Stock”). At any time after the issuance of the Note, the Lender, at its option, is entitled to convert all or any lesser portion of the outstanding principal amount and accrued but unpaid interest into Common Stock at a conversion price equal to the lesser of (i) $0.05 and (ii) 80% of the average of the 5 (five) lowest intraday trading prices during the 20 (twenty) days prior to the day that the Lender requests conversion, unless otherwise modified by mutual agreement between the parties, subject to certain adjustments and limitations, including a beneficial ownership limitation of 4.99%.

 

Pursuant to the terms of the Note, the Company shall prepare and file with the U.S. Securities and Exchange Commission (the “SEC”), a registration statement on Form S-1 or S-3, covering the resale of all of the shares of Common Stock issuable upon the conversion of the Note.

 

The issuance of the Note was made in reliance upon the exemption from registration provided by Section 4(a)(2) of the Securities Act of 1933, as amended (the “Securities Act”), and Rule 506(b) promulgated thereunder. The Note and the shares of Common Stock issuable upon conversion thereof have not been registered under the Securities Act and may not be offered or sold in the United States absent registration or an applicable exemption from registration requirements.

 

The foregoing description of the Note is qualified in its entirety by reference to the full text of such document, a copy of which was previously filed as Exhibit 4.1 to the Company’s Current Report on Form 8-K filed on February 13, 2026 and is incorporated herein by reference.

 

Item 2.03 Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.

 

The information set forth under Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 2.03.

 

Item 3.02 Unregistered Sales of Equity Securities.

 

The information set forth under Item 1.01 of this Current Report on Form 8-K is incorporated by reference into this Item 3.02. The issuance of the Note was made in reliance on the exemption provided by Section 4(a)(2) of the Securities Act, for the offer and sale of securities not involving a public offering. The Company’s reliance upon Section 4(a)(2) of the Securities Act in issuing the Notes was based upon the following factors: (a) the issuance of the Note was an isolated private transaction by us which did not involve a public offering; (b) the Lender is an accredited investor; (c) the Company did not engage in general solicitation or advertising in connection with the issuance; and (d) the Lender represented that, among other things, it was acquiring the securities for investment purposes only and not with a view to distribution, it has received information about the Company necessary to make an informed investment decision, and the Lender is capable of evaluating the merits and risks of its investment. Any shares of Common Stock issuable upon conversion of the Note will be issued in reliance on the exemption from registration provided by Section 3(a)(9) or Section 4(a)(2) of the Securities Act.

 

Item 9.01 Financial Statements and Exhibits.

 

(d) Exhibits

 

Exhibit No.   Description
4.1   Form of Note (incorporated by reference to Exhibit 4.1 of the Company’s Current Report on Form 8-K (File No. 001-40877) filed on February 13, 2026).
104   Cover Page Interactive Data File (embedded within the Inline XBRL document).

 

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SIGNATURES

 

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

 

Dated: May 1, 2026 CERO THERAPEUTICS HOLDINGS, INC.
   
  By: /s/ Chris Ehrlich
  Name: Chris Ehrlich
  Title: Chief Executive Officer

 

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Filing Exhibits & Attachments

4 documents