Ceribell holder plans 2,199-share stock sale

Ceribell, Inc. (CBLL) is the issuer in a notice under Rule 144 filed for planned sales of its common stock by holder Xingjuan Chao.

Rhea-AI Filing Summary

Ceribell, Inc. (CBLL) is the issuer in a notice under Rule 144 filed for planned sales of its common stock by holder Xingjuan Chao. The filing lists an upcoming transaction involving 2,199 shares of common stock associated with a stock option exercise, with Fidelity Brokerage Services LLC identified as the broker.

The notice also reports prior sales of Ceribell common stock by the same holder over the last three months, including 6,030 shares sold on May 21, 2026, and three separate blocks of 39,000 shares each sold on June 8, July 7, and August 3, 2026, with corresponding dollar amounts disclosed for each sale. The form is signed by an authorized representative of Fidelity Brokerage Services LLC acting as attorney-in-fact for the selling holder.

Key Figures

Planned shares to be sold: 2,199 shares Shares sold on 05/21/2026: 6,030 shares Proceeds on 05/21/2026 sale: $108,515.27 +5 more

8 metrics

Planned shares to be sold 2,199 shares Common stock associated with stock option exercise listed in Rule 144 notice

Shares sold on 05/21/2026 6,030 shares Ceribell common stock sold by Xingjuan Chao

Proceeds on 05/21/2026 sale $108,515.27 Dollar amount for 6,030-share sale of Ceribell common stock

Shares sold on 06/08/2026 39,000 shares Ceribell common stock sold by Xingjuan Chao

Proceeds on 06/08/2026 sale $717,855.81 Dollar amount for 39,000-share sale

Shares sold on 07/07/2026 39,000 shares Ceribell common stock sold by Xingjuan Chao

Proceeds on 07/07/2026 sale $776,162.92 Dollar amount for 39,000-share sale

Proceeds on 08/03/2026 sale $714,567.79 Dollar amount for 39,000-share sale of Ceribell common stock

Key Terms

Rule 144, stock option exercise, attorney-in-fact

3 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.

stock option exercise financial

"Common | 08/18/2026 | 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 ATTENTION"

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

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

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

The Form 144 gives notice that a holder, Xingjuan Chao, plans to sell Ceribell common stock under Rule 144. It also discloses several prior share sales over the past three months, executed through Fidelity Brokerage Services LLC.

How many Ceribell (CBLL) shares are planned to be sold under this notice?

The filing lists a planned transaction for 2,199 shares of Ceribell common stock tied to a stock option exercise. This amount relates specifically to the upcoming transaction described in the notice.

What Ceribell (CBLL) share sales has Xingjuan Chao reported in the last three months?

The notice reports prior sales of 6,030 shares on May 21, 2026, and 39,000 shares each on June 8, July 7, and August 3, 2026. Each sale involved Ceribell common stock and includes corresponding dollar proceeds.

Who is executing the Ceribell (CBLL) stock sales for Xingjuan Chao?

The broker listed is Fidelity Brokerage Services LLC, located in Smithfield, Rhode Island. The Form 144 is signed by a Fidelity representative acting as attorney-in-fact for Xingjuan Chao.

Is Ceribell, Inc. (CBLL) itself selling shares in this Form 144?

The notice identifies Ceribell, Inc. as the issuer, but the selling person is Xingjuan Chao. The disclosure concerns sales of existing Ceribell common stock for that holder’s account, not an issuance of new shares by the company.

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

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Available on EDGAR 08/18/2026 - 04:58 PM Accepted by SEC EDGAR 08/18/2026 - 04:57 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	2199	54975.00	38378101	08/18/2026	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	08/18/2026	Stock Option Exercise	Issuer			2199	08/18/2026	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 02917	Common	06/08/2026	39000	717855.81
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

144: Remarks and Signature

Remarks
Date of Notice	08/18/2026
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/ Louis Kurnick, 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)