[Form 4] CeriBell, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Rebecca B. Robertson, a director of Ceribell, Inc. (CBLL), reported a sale of 827 shares of the issuer's common stock on 09/03/2025 at a reported price of $11.36 per share under a Rule 10b5-1 trading plan. After the reported transaction Ms. Robertson beneficially owned 9,215 shares, held directly. The Form 4 was filed as a one-person filing and signed by an attorney-in-fact on behalf of the reporting person.

The filing states the sale was effected pursuant to a 10b5-1 plan, indicating the transaction was prearranged. No derivative transactions, option exercises, or additional securities classes are reported in this Form 4.

Positive

• Transaction executed under a Rule 10b5-1 trading plan, which supports compliance with insider-trading rules
• Clear reporting of post-transaction ownership (9,215 shares) providing transparency for investors
• Form 4 filed by one reporting person and executed via attorney-in-fact, indicating proper procedural handling

Negative

• Director reduced holdings by 827 shares, which is a decline in insider ownership
• No additional context (e.g., total holdings value or percentage of outstanding shares) is provided in this filing

Insights

Corporate Governance Expert

TL;DR: Director executed a prearranged sale under a 10b5-1 plan; filing shows compliance and routine insider liquidity.

The reported sale of 827 shares at $11.36 under a Rule 10b5-1 plan signals a planned disposition rather than opportunistic trading. From a governance perspective, using a documented trading plan reduces insider-trading risk and demonstrates adherence to disclosure rules. The remaining beneficial ownership of 9,215 shares remains disclosed, supporting transparency. There is no indication of any contemporaneous related-party or derivative activity in this filing.

Securities Analyst

TL;DR: Transaction is routine and preplanned; not materially transformative for investors.

The sale represents a modest reduction in the director's stake and was executed at $11.36 per share. Because the transaction is attributed to a Rule 10b5-1 plan and no other dispositions or acquisitions are reported, the event is unlikely to be material to the company’s capitalization or to signal new information about operations or outlook. The filing correctly reports ownership post-transaction (9,215 shares) and provides the required disclosure elements for insider activity.

SEC Form 4

FORM 4

UNITED 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).

X

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^*

ROBERTSON REBECCA B

(Last) (First) (Middle)

C/O CERIBELL, INC.

360 N. PASTORIA AVENUE

(Street)

SUNNYVALE CA 94085

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Ceribell, Inc. [ CBLL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
09/03/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	09/03/2025		S(1)		827	D	$11.36	9,215	D

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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.

	/s/ Louisa Daniels, Attorney-in-Fact for Rebecca B. Robertson	09/05/2025
	** Signature of Reporting Person	Date
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.

FAQ

What did Rebecca B. Robertson report on Form 4 for CBLL?

The report discloses a sale of 827 shares of Ceribell, Inc. common stock on 09/03/2025 at a price of $11.36 per share.

Was the sale by the director part of a trading plan?

Yes. The Form 4 states the sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

How many shares did the reporting person own after the transaction?

Following the reported sale, the reporting person beneficially owned 9,215 shares (direct ownership).

Does the Form 4 report any derivative transactions or option exercises?

No. Table II (derivative securities) contains no reported transactions in this Form 4.

Who filed and signed the Form 4 for Rebecca B. Robertson?

The Form 4 was filed by one reporting person and the signature on the filing is by Louisa Daniels, Attorney-in-Fact for Rebecca B. Robertson dated 09/05/2025.