STOCK TITAN

Ceribell (CBLL) CEO trades stock under Rule 10b5-1 plan

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Ceribell, Inc. President and CEO Xingjuan Chao reported an exercise-and-sell transaction in Common Stock. On July 7, 2026, she exercised stock options to acquire a total of 25,000 shares at an exercise price of $4.70 per share and sold 39,000 shares of Common Stock in open-market transactions at a weighted average price of $19.90 per share. These transactions were carried out under a pre-arranged Rule 10b5-1 trading plan. Following the transactions, she directly holds 802,317 shares of Common Stock and may be deemed to share beneficial ownership of 369,088 shares held indirectly through the ACP 2021 Trust. The stock option referenced in the filing is fully vested and currently exercisable.

Positive

  • None.

Negative

  • None.
Insider Chao Xingjuan
Role President and CEO
Sold 39,000 shs ($776K)
Type Security Shares Price Value
Exercise Stock Option (Right to Buy) 1,446 $0.00 --
Exercise Stock Option (Right to Buy) 23,554 $0.00 --
Sale Common Stock 14,000 $19.90 $279K
Exercise Common Stock 1,446 $4.70 $7K
Sale Common Stock 1,446 $19.90 $29K
Exercise Common Stock 23,554 $4.70 $111K
Sale Common Stock 23,554 $19.90 $469K
holding Common Stock -- -- --
Holdings After Transaction: Stock Option (Right to Buy) — 288,710 shares (Direct); Common Stock — 802,317 shares (Direct); Common Stock — 369,088 shares (Indirect, By ACP 2021 Trust)
Footnotes (1)
  1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.69 to $20.27, 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. The Reporting Person is a co-trustee of the ACP 2021 Trust, and therefore may be deemed to share beneficial ownership of these securities. The Reporting Person disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein. 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. The stock option is fully vested and currently exercisable.
Shares sold 39,000 shares Common Stock sold in open-market transactions on July 7, 2026 at weighted avg $19.90
Average sale price $19.90 per share Weighted average sale price for 39,000 Common Stock shares, range $19.69–$20.27
Options exercised 25,000 shares Common Stock acquired via option exercises (codes M) at $4.70 on July 7, 2026
Option exercise price $4.70 per share Exercise price for stock options converted into Common Stock
Direct holdings after 802,317 shares Common Stock directly owned by CEO after reported transactions
Indirect trust holdings 369,088 shares Common Stock held by ACP 2021 Trust with shared beneficial ownership
Rule 10b5-1 trading plan financial
"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.
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.
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.
pecuniary interest financial
"disclaims beneficial ownership of these securities except to the extent of her pecuniary interest therein."
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FAQ

What insider transactions did Ceribell (CBLL) CEO Xingjuan Chao report?

Ceribell CEO Xingjuan Chao reported exercising stock options for 25,000 shares at $4.70 and selling 39,000 Common Stock shares at a weighted average $19.90 on July 7, 2026, under a pre-arranged Rule 10b5-1 trading plan.

How many Ceribell (CBLL) shares does the CEO hold after this Form 4?

After the reported transactions, CEO Xingjuan Chao directly holds 802,317 Ceribell Common Stock shares. She may also be deemed to share beneficial ownership of 369,088 additional shares held indirectly through the ACP 2021 Trust, according to the ownership disclosures in the filing.

What prices were involved in the Ceribell (CBLL) CEO’s Form 4 transactions?

The CEO exercised options at an exercise price of $4.70 per share for 25,000 shares. She sold 39,000 Common Stock shares in open-market transactions at a weighted average price of $19.90 per share, based on trades ranging from $19.69 to $20.27.

Were Ceribell (CBLL) CEO share sales under a Rule 10b5-1 plan?

Yes. The Form 4 states that the reported Ceribell share transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person, indicating the exercise and sales were pre-arranged rather than timed discretionarily around short-term company developments.

What does the Form 4 say about the Ceribell (CBLL) CEO’s stock options?

The filing describes a stock option with a $4.70 exercise price that is fully vested and currently exercisable. It vests in monthly installments from April 1, 2023, conditioned on continued service, and was partially exercised in connection with the July 7, 2026 transactions.

How are ACP 2021 Trust holdings treated in the Ceribell (CBLL) Form 4?

The Form 4 reports 369,088 Ceribell shares held by ACP 2021 Trust as indirect ownership. 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.
SEC Form 4
FORM 4UNITED 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)
XDirector10% Owner
XOfficer (give title below)Other (specify below)
President and CEO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
07/07/2026
6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock07/07/2026S(1)14,000D$19.9(2)802,317D
Common Stock07/07/2026M(1)1,446A$4.7803,763D
Common Stock07/07/2026S(1)1,446D$19.9(2)802,317D
Common Stock07/07/2026M(1)23,554A$4.7825,871D
Common Stock07/07/2026S(1)23,554D$19.9(2)802,317D
Common Stock369,088IBy 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares
Stock Option (Right to Buy)$4.707/07/2026M(1)1,446 (5)02/16/2033Common Stock1,446$0288,710D
Stock Option (Right to Buy)$4.707/07/2026M(1)23,554 (6)02/16/2033Common Stock23,554$077,923D
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 $19.69 to $20.27, 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) Chao07/09/2026
** Signature of Reporting PersonDate
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)