[Form 4] Ceribell, Inc. Insider Trading Activity

Ceribell, Inc. director Rebecca B. Robertson reported an option exercise and share sale.

Rhea-AI Filing Summary

Ceribell, Inc. director Rebecca B. Robertson reported an option exercise and share sale. On January 2, 2026, she exercised a stock option for 2,500 shares of common stock at $2.24 per share, then sold 2,500 common shares at $21.89 on the same date. After these transactions, she directly held 19,576 shares of common stock and 7,650 stock options. The filing notes that the transactions were made under a Rule 10b5-1 trading plan that she had previously adopted, and that the stock option is fully vested and currently exercisable.

Insider Trade Summary

Exercise and Sale: 2,500 shares ($49K approx. pre-tax spread)

Exercise and Sale 3 txns

Insider ROBERTSON REBECCA B

Role Director

Sold 2,500 shs ($55K)

Approx. gross sale proceeds $55K

Approx. exercise cost $6K

Approx. pre-tax spread $49K

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy)	2,500	$0.00	$0.00
Exercise	Common Stock	2,500	$2.24	$6K
Sale	Common Stock	2,500	$21.89	$55K

Holdings After Transaction: Stock Option (Right to Buy) — 7,650 contracts (Direct); Common Stock — 19,576 shares (Direct)

Footnotes (2)

1. F1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person.
2. F2. The stock option is fully vested and currently exercisable.

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Accepted by SEC EDGAR 01/06/2026 - 05:16 PM Learn about SEC filing dates

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)
01/02/2026

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	01/02/2026		M(1)		2,500	A	$2.24	22,076	D
Common Stock	01/02/2026		S(1)		2,500	D	$21.89	19,576	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	01/02/2026		M(1)			2,500	(2)	03/21/2029	Common Stock	2,500	$0	7,650	D

Explanation of Responses:

1. The transactions 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 Rebecca B. Robertson	01/06/2026
	** 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.