[Form 4] CeriBell, Inc. Insider Trading Activity

Rhea-AI Filing Summary

Ceribell, Inc. insider Raymond Woo, the company's Chief Technology Officer, exercised options under a Rule 10b5-1 plan on 09/02/2025. He acquired 20,000 shares of Common Stock by exercising stock options at a $2.24 exercise price. Following the transaction, the reporting person beneficially owns 167,704 shares of common stock and directly holds 20,000 underlying shares from the exercised option. The option granted is fully vested and exercisable and has an expiration date of 06/10/2029. The Form 4 was signed by an attorney-in-fact on 09/04/2025.

Positive

• Transaction executed under a Rule 10b5-1 trading plan, which documents prearranged trading and reduces concerns about opportunistic timing
• Insider exercised fully vested options, indicating access to previously granted compensation rather than a new grant
• Form 4 filed promptly (transaction dated 09/02/2025, Form signed 09/04/2025), showing timely disclosure

Negative

• None.

Insights

Financial Analyst

TL;DR: Insider exercised options for 20,000 shares at $2.24 under a 10b5-1 plan, increasing direct holdings to 167,704 shares.

The exercise indicates non-discretionary execution under a pre-established Rule 10b5-1 trading plan, which typically reduces timing risk and signaling concerns about opportunistic insider trades. The transaction involved 20,000 option shares exercised at $2.24, with the options fully vested and exercisable and expiring 06/10/2029. For investors, this is a routine insider liquidity event rather than an operational disclosure; it slightly increases the insider's direct share count but does not provide new financial results or prospects.

Corporate Governance Expert

TL;DR: The trade followed a 10b5-1 plan and was reported promptly, consistent with standard insider reporting practices.

The filing explicitly states the exercise was effected pursuant to a Rule 10b5-1 trading plan and the Form 4 was filed with a dated signature on 09/04/2025. The reporting person is the CTO and the filing identifies direct ownership amounts after the transaction. From a governance perspective, documentation of the 10b5-1 plan and timely Form 4 disclosure align with compliance expectations for insider transactions.

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^*

Woo Raymond

(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)

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

3. Date of Earliest Transaction (Month/Day/Year)
09/02/2025

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	09/02/2025		M(1)		20,000	A	$2.24	167,704	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
Stock Option (Right to Buy)	$2.24	09/02/2025		M(1)			20,000	(2)	06/10/2029	Common Stock	20,000	$0	21,634	D

Explanation of Responses:

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

2. The stock option is fully vested and currently exercisable.

	/s/ Louisa Daniels, Attorney-in-Fact for Raymond Woo	09/04/2025
	** 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.