Ceribell (CBLL) CTO Woo exercises options and sells shares under 10b5‑1 plan

Rhea-AI Filing Summary

Ceribell, Inc. Chief Technology Officer Raymond Woo reported planned option exercises and share sales in company stock. On February 2, 2026, he exercised several stock options at prices of $2.24 and $4.70 per share and sold the resulting common shares at weighted average prices around $20.57, all under a pre‑established Rule 10b5‑1 trading plan adopted on May 28, 2025.

Following these transactions, Woo directly beneficially owned 167,617 shares of Ceribell common stock, which includes 300 shares acquired through the company’s employee stock purchase plan on January 30, 2026. He also continues to hold multiple stock options that remain outstanding, some of which are fully vested and currently exercisable and others that continue to vest monthly from April 1, 2023.

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)
02/02/2026

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	02/02/2026		M(2)		1,472	A	$2.24	169,089(1)	D
Common Stock	02/02/2026		S(2)		1,472	D	$20.57(3)	167,617	D
Common Stock	02/02/2026		M(2)		3,025	A	$4.7	170,642	D
Common Stock	02/02/2026		S(2)		3,025	D	$20.57(3)	167,617	D
Common Stock	02/02/2026		M(2)		6,615	A	$4.7	174,232	D
Common Stock	02/02/2026		S(2)		6,615	D	$20.54(3)	167,617	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	02/02/2026		M(2)			1,472	(4)	06/10/2029	Common Stock	1,472	$0	12,802	D
Stock Option (Right to Buy)	$4.7	02/02/2026		M(2)			3,025	(5)	02/16/2033	Common Stock	3,025	$0	41,771	D
Stock Option (Right to Buy)	$4.7	02/02/2026		M(2)			6,615	(6)	02/16/2033	Common Stock	6,615	$0	38,908	D

Explanation of Responses:

1. Includes 300 shares acquired under the Issuer's Employee Stock Purchase Plan on January 30, 2026.

2. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 28, 2025.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.08 to $21.01, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased or sold, as applicable, at each separate price within the ranges set forth in this footnote.

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

5. The option vests with respect to 1/48 of the shares subject thereto on each monthly anniversary of April 1, 2023, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

6. The option vests with respect to 1/24 of the shares subject thereto on each monthly anniversary of April 1, 2023, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.

	/s/ Louisa Daniels, Attorney-in-Fact for Raymond Woo	02/04/2026
	** 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.
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FAQ

What insider transaction did Ceribell (CBLL) report for CTO Raymond Woo?

Ceribell reported that CTO Raymond Woo exercised stock options and sold common shares on February 2, 2026. The trades involved option exercises at $2.24 and $4.70 per share, followed by sales at weighted average prices around $20.57 under a Rule 10b5‑1 plan.

How many Ceribell (CBLL) shares does CTO Raymond Woo own after this Form 4?

After the reported transactions, Raymond Woo directly beneficially owned 167,617 shares of Ceribell common stock. This figure includes 300 shares acquired through the company’s Employee Stock Purchase Plan on January 30, 2026, in addition to shares held from prior equity awards.

Were Ceribell (CBLL) CTO Raymond Woo’s stock sales pre‑planned under Rule 10b5‑1?

Yes. The Form 4 states the transactions were executed under a Rule 10b5‑1 trading plan adopted on May 28, 2025. Such plans allow insiders to schedule trades in advance, helping separate personal trading decisions from later, potentially material, company information.

What prices were involved in Ceribell (CBLL) CTO Raymond Woo’s February 2, 2026 trades?

Woo exercised options at $2.24 and $4.70 per share and sold the resulting shares at weighted average prices around $20.57. The filing notes actual sale prices ranged from $20.08 to $21.01 across multiple transactions on that date.

What stock options does Ceribell (CBLL) CTO Raymond Woo still hold after these transactions?

Woo continues to hold several stock option grants with remaining balances after the exercises reported. One option is fully vested and currently exercisable, while others vest monthly from April 1, 2023, contingent on his continued employment or service with Ceribell.

Does Ceribell (CBLL) CTO Raymond Woo’s share count include employee stock purchase plan shares?

Yes. The Form 4 explains his holdings include 300 shares from Ceribell’s Employee Stock Purchase Plan. Those shares were acquired on January 30, 2026, and are part of the 167,617 common shares he beneficially owned after the reported trades.