Ceribell CEO exercises options, sells 39K shares

Ceribell, Inc. President and CEO Xingjuan Chao reported a combination of stock option exercises and open-market sales of Common Stock.

Rhea-AI Filing Summary

Ceribell, Inc. President and CEO Xingjuan Chao reported a combination of stock option exercises and open-market sales of Common Stock. On June 8, 2026, she exercised options to acquire 25,000 shares of Common Stock at an exercise price of $4.70 per share and sold a total of 39,000 shares of Common Stock in open-market transactions at a weighted average price of approximately $18.33 per share, with individual sale prices ranging from $18.15 to $18.75.

Following these transactions, she held 816,317 shares of Common Stock directly. In addition, 369,088 shares of Common Stock were held indirectly through the ACP 2021 Trust, where she serves as co-trustee and may be deemed to share beneficial ownership, while disclaiming beneficial ownership except to the extent of her pecuniary interest. The stock options exercised carry a $4.70 exercise price and an expiration date of February 16, 2033, and are described as fully vested and currently exercisable. The filing notes that the sale transactions were effected pursuant to a Rule 10b5-1 trading plan, indicating they were executed under a pre-arranged trading program.

Insights

Equity compensation and insider trading analyst

CEO executes option exercise-and-sell under 10b5-1; net routine trimming.

The CEO of Ceribell, Inc., Xingjuan Chao, exercised stock options with a $4.70 exercise price to acquire 25,000 Common shares, then sold 39,000 shares at a weighted average price around $18.33. This pattern represents a classic exercise-and-sell sequence, monetizing part of an equity award.

After the transactions, she still directly holds 816,317 Common shares, plus indirect exposure through 369,088 shares held by the ACP 2021 Trust. In proportional terms, the net sale is a small fraction of her visible equity position, suggesting a routine liquidity event rather than a major shift in exposure.

The filing states that the sales occurred pursuant to a Rule 10b5-1 trading plan adopted by the reporting person. Such pre-arranged plans are established in advance and help separate trading activity from short-term information, which typically reduces the informational content of the trade timing for outside investors.

Insider Trade Summary 10b5-1

Exercise and sale activity reported; no spread calculated

Exercise and Sale 8 txns

Insider Chao Xingjuan

Role President and CEO

Sold 39,000 shs ($715K)

Approx. gross sale proceeds $715K

Approx. exercise cost $118K

Type	Security	Shares	Price	Value
Exercise	Stock Option (Right to Buy)	1,446	$0.00	$0.00
Exercise	Stock Option (Right to Buy)	23,554	$0.00	$0.00
Sale	Common Stock	14,000	$18.33	$257K
Exercise	Common Stock	1,446	$4.70	$7K
Sale	Common Stock	1,446	$18.33	$27K
Exercise	Common Stock	23,554	$4.70	$111K
Sale	Common Stock	23,554	$18.33	$432K
holding	Common Stock	--	--	--

Holdings After Transaction: Stock Option (Right to Buy) — 391,633 contracts (Direct); Common Stock — 816,317 shares (Direct); Common Stock — 369,088 shares (Indirect, By ACP 2021 Trust)

Footnotes (6)

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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.15 to $18.75, 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.
3. F3. The Reporting Person is a co-trustee of the ACP 2021 Trust, and therefore may be deemed to share beneficial ownership of these securities.
4. F4. The Reporting Person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.
5. F5. 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. F6. The stock option is fully vested and currently exercisable.

Key Figures

Shares sold: 39,000 shares Weighted average sale price: $18.33 per share Options exercised: 25,000 shares +4 more

7 metrics

Shares sold 39,000 shares Common Stock sold on June 8, 2026

Weighted average sale price $18.33 per share Open-market sales, prices from $18.15 to $18.75

Options exercised 25,000 shares Common Stock acquired via option exercise on June 8, 2026

Option exercise price $4.70 per share Stock options exercised into Common Stock

Direct holdings after transactions 816,317 shares Common Stock owned directly following June 8, 2026 trades

Indirect trust holdings 369,088 shares Common Stock held by ACP 2021 Trust

Option expiration date February 16, 2033 Expiration for stock options with $4.70 exercise price

Key Terms

Rule 10b5-1 trading plan, weighted average price, beneficial ownership, stock option, +1 more

5 terms

Rule 10b5-1 trading plan regulatory

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

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

beneficial ownership financial

"may be deemed to share beneficial ownership of these securities."

Beneficial ownership means the person or entity that actually enjoys the benefits of owning shares or other assets — such as receiving dividends, voting rights, or price gains — even if the legal title is held in another name. For investors it matters because knowing who truly controls and profits from a company reveals who can influence decisions, exposes potential conflicts of interest or hidden concentration of power, and affects transparency and risk in the stock.

stock option financial

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

A stock option is a contract that gives you the right to buy or sell a company's stock at a specific price within a certain time frame. People use them to potentially make money if the stock's price moves favorably or to protect against losses. It's like holding a coupon that can be used to buy or sell stock at a set price later on.

pecuniary interest financial

"disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein."

FAQ

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

What did Ceribell (CBLL) CEO Xingjuan Chao do in this Form 4 filing?

The CEO reported exercising stock options to acquire 25,000 Ceribell shares at $4.70 and selling 39,000 shares at a weighted average $18.33. The sales and exercises occurred on June 8, 2026, under a pre-arranged Rule 10b5-1 trading plan.

How many Ceribell (CBLL) shares does the CEO hold after these transactions?

After the reported trades, the CEO directly holds 816,317 Ceribell Common shares. In addition, 369,088 shares are held indirectly through the ACP 2021 Trust, where she is co-trustee and may share beneficial ownership subject to her pecuniary interest.

What prices were involved in the Ceribell (CBLL) CEO’s stock option exercise and sales?

The CEO exercised options at an exercise price of $4.70 per share and sold shares at a weighted average of about $18.33. Individual sale prices ranged from $18.15 to $18.75, as disclosed in the weighted-average price footnote.

Were the Ceribell (CBLL) CEO’s stock sales part of a Rule 10b5-1 trading plan?

Yes. The filing states the transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the CEO. Such plans pre-schedule trades, helping separate them from day-to-day corporate developments and reducing the importance of trade timing as a signal.

What are the key terms of the Ceribell (CBLL) stock options exercised by the CEO?

The options exercised have a $4.70 exercise price and expire on February 16, 2033. A footnote explains the option vests monthly over 48 months from April 1, 2023, and is described as fully vested and currently exercisable at the time of the filing.

How much stock in Ceribell (CBLL) is held through the ACP 2021 Trust?

The filing reports 369,088 Ceribell Common shares held indirectly through the ACP 2021 Trust. The CEO is a co-trustee and may be deemed to share beneficial ownership but disclaims beneficial ownership except to the extent of her pecuniary interest in those securities.

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

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Accepted by SEC EDGAR 06/10/2026 - 12:53 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^*

Chao Xingjuan

(Last) (First) (Middle)

C/O CERIBELL, INC.

360 N. PASTORIA AVENUE

(Street)

SUNNYVALE CALIFORNIA 94085

(City) (State) (Zip)

UNITED STATES

(Country)

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
X	Officer (give title below)		Other (specify below)
	President and CEO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/08/2026

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

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

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

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	06/08/2026		S(1)		14,000	D	$18.33(2)	816,317	D
Common Stock	06/08/2026		M(1)		1,446	A	$4.7	817,763	D
Common Stock	06/08/2026		S(1)		1,446	D	$18.33(2)	816,317	D
Common Stock	06/08/2026		M(1)		23,554	A	$4.7	839,871	D
Common Stock	06/08/2026		S(1)		23,554	D	$18.33(2)	816,317	D
Common Stock								369,088	I	By ACP 2021 Trust(3)(4)

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)	$4.7	06/08/2026		M(1)			1,446	(5)	02/16/2033	Common Stock	1,446	$0	290,156	D
Stock Option (Right to Buy)	$4.7	06/08/2026		M(1)			23,554	(6)	02/16/2033	Common Stock	23,554	$0	101,477	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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.15 to $18.75, 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.

3. The Reporting Person is a co-trustee of the ACP 2021 Trust, and therefore may be deemed to share beneficial ownership of these securities.

4. The Reporting Person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein.

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 stock option is fully vested and currently exercisable.

	/s/ Louisa Daniels, Attorney-in-Fact for Xingjuan (Jane) Chao	06/10/2026
	** 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.
* Form 4: SEC 1474 (03-26)