Ceribell (CBLL) investor plans 31,415-share Rule 144 stock sale

Rhea-AI Filing Summary

Ceribell, Inc. (CBLL) is the issuer for a planned resale of its common stock under Rule 144 by security holder Xingjuan Chao, using Fidelity Brokerage Services LLC as broker. The notice covers a proposed sale of 31,415 shares of common stock, with an aggregate market value of $786,364.46, when 38,378,101 shares of this class were outstanding as of 08/19/2026.

The shares to be sold were acquired through a stock option exercise on 04/30/2018, for cash, from the issuer. The filing also lists several prior sales of Ceribell common stock by Xingjuan Chao during the past three months, reflecting ongoing liquidity activity by this holder.

Key Figures

Shares proposed to be sold: 31,415 shares Aggregate market value of proposed sale: $786,364.46 Shares outstanding: 38,378,101 shares +5 more

8 metrics

Shares proposed to be sold 31,415 shares Common stock to be sold under Rule 144

Aggregate market value of proposed sale $786,364.46 Aggregate market value of 31,415 shares of common stock

Shares outstanding 38,378,101 shares Common stock outstanding as of 08/19/2026

Acquisition date of shares 04/30/2018 Stock option exercise used to acquire shares from issuer

Sale on 05/21/2026 6,030 shares; $108,515.27 Common shares sold by Xingjuan Chao during past 3 months

Sale on 06/08/2026 39,000 shares; $714,855.81 Common shares sold by Xingjuan Chao during past 3 months

Sale on 07/07/2026 39,000 shares; $776,162.92 Common shares sold by Xingjuan Chao during past 3 months

Sale on 08/03/2026 39,000 shares; $714,567.79 Common shares sold by Xingjuan Chao during past 3 months

Key Terms

Rule 144, aggregate market value, Stock Option Exercise, attorney-in-fact

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

aggregate market value financial

"31415 | 786364.46 | 38378101 | 08/19/2026 | NASDAQ"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Stock Option Exercise financial

"Common | 04/30/2018 | Stock Option Exercise | Issuer"

A stock option exercise is the act of using a previously granted right to buy shares of a company's stock at a specific, predetermined price by paying that price and receiving the shares. It matters to investors because exercising changes who owns the shares (which can dilute existing ownership), can trigger taxable events and shift potential gains or losses, and affects voting power and the company’s outstanding share count—like turning a voucher into an actual product that becomes part of circulating supply.

attorney-in-fact regulatory

"as attorney-in-fact for Xingjuan Chao"

An attorney-in-fact is the person or entity given legal authority through a power of attorney to act on behalf of another for specific tasks, such as signing documents, voting shares, or handling transactions. For investors, this matters because it lets a trusted representative make timely decisions or complete paperwork when the owner cannot, much like handing keys to someone to run errands on your behalf—so checks on scope and limits of that authority are important.

FAQ

What does the Form 144 filing mean for Ceribell, Inc. (CBLL)?

The filing reports that a shareholder, Xingjuan Chao, intends to sell 31,415 shares of Ceribell common stock under Rule 144. This is a resale by an existing holder and does not itself represent new share issuance by Ceribell.

How many Ceribell (CBLL) shares are proposed to be sold in this Form 144?

The notice covers a proposed sale of 31,415 shares of Ceribell common stock. These shares have an aggregate market value of $786,364.46 based on the pricing used in the filing for Rule 144 purposes.

How many Ceribell (CBLL) shares were outstanding when this Rule 144 notice was filed?

The filing states there were 38,378,101 shares of Ceribell common stock outstanding as of 08/19/2026. This figure provides context for the relative size of the 31,415-share proposed sale by the reporting holder.

How did the selling holder acquire the Ceribell (CBLL) shares covered by this Form 144?

The shares were acquired via a stock option exercise dated 04/30/2018, for cash, from Ceribell as issuer. The filing identifies the transaction type as “Stock Option Exercise” and lists the acquisition method as cash.

What prior Ceribell (CBLL) stock sales by this holder are disclosed in the Form 144?

The document lists several prior sales of Ceribell common stock by Xingjuan Chao over the past three months, including transactions on 05/21/2026, 06/08/2026, 07/07/2026, 08/03/2026, and 08/18/2026, each specifying shares sold and total dollar proceeds.

Is Ceribell, Inc. (CBLL) receiving proceeds from the Form 144 share sale?

The Form 144 describes a resale of Ceribell common stock by an existing security holder under Rule 144. The filing characterizes the broker and holder’s intended sale; it does not state that Ceribell will receive cash proceeds from these resale transactions.

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

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Available on EDGAR 08/19/2026 - 04:29 PM Accepted by SEC EDGAR 08/19/2026 - 04:29 PM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0002035784
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Ceribell, Inc.
SEC File Number	001-42364
Address of Issuer	360 N. PASTORIA AVENUE SUNNYVALE CALIFORNIA 94085
Phone	(800) 436-0826
Name of Person for Whose Account the Securities are To Be Sold	Chao Xingjuan
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer
Relationship to Issuer	Director

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	31415	786364.46	38378101	08/19/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	04/30/2018	Stock Option Exercise	Issuer			31415	04/30/2018	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Xingjuan Chao 360 N. Pastoria Avenue Sunnyvale CA 94085	Common	05/21/2026	6030	108515.27
Xingjuan Chao 360 N. Pastoria Avenue Sunnyvale CA 94085	Common	06/08/2026	39000	714855.81
Xingjuan Chao 360 N. Pastoria Avenue Sunnyvale CA 94085	Common	07/07/2026	39000	776162.92
Xingjuan Chao 360 N. Pastoria Avenue Sunnyvale CA 94085	Common	08/03/2026	39000	714567.79
Xingjuan Chao 360 N. Pastoria Avenue Sunnyvale CA 94085	Common	08/18/2026	2199	54975.00

144: Remarks and Signature

Remarks
Date of Notice	08/19/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	09/12/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Adam Gehring, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Xingjuan Chao
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)