STOCK TITAN

Ceribell CTO exercises 13K options, sells shares

Ceribell’s chief technology officer exercised multiple stock options and sold a portion of the resulting shares under a pre-arranged Rule 10b5-1 trading plan.

(Neutral)
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Ceribell, Inc. (CBLL) reported that Chief Technology Officer Raymond Woo exercised stock options to acquire a total of 13,276 shares of common stock on September 8, 2026, at exercise prices of $2.24, $3.65, and $4.70 per share, and sold 4,887 shares of common stock at $24.33 per share the same day. The company states these transactions were effected pursuant to a Rule 10b5-1 trading plan adopted by Woo on June 5, 2026.

Positive

  • None.

Negative

  • None.
Insider Woo Raymond
Role Chief Technology Officer
Sold 4,887 shs ($119K)
Approx. gross sale proceeds $119K
Approx. exercise cost $37K
Type Security Shares Price Value
Exercise Stock Option (Right to Buy) F1, F2 8,389 $0.00 $0.00
Exercise Stock Option (Right to Buy) F1, F3 4,864 $0.00 $0.00
Exercise Stock Option (Right to Buy) F1, F2 23 $0.00 $0.00
Exercise Common Stock F1 8,389 $2.24 $19K
Exercise Common Stock F1 4,864 $3.65 $18K
Exercise Common Stock F1 23 $4.70 $108.10
Sale Common Stock F1 4,887 $24.33 $119K
Holdings After Transaction: Stock Option (Right to Buy) — 72,545 contracts (Direct); Common Stock — 203,118 shares (Direct)
Footnotes (3)
  1. F1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on June 5, 2026.
  2. F2. The stock option is fully vested and currently exercisable.
  3. F3. The option vests with respect to 1/48 of the shares subject thereto on each monthly anniversary of June 10, 2021, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.
Options exercised 13,276 shares Total Ceribell common shares acquired through option exercises on September 8, 2026
Shares sold 4,887 shares Ceribell common shares sold on September 8, 2026
Sale price per share $24.33 per share Price for the 4,887 Ceribell common shares sold on September 8, 2026
Option exercise price 1 $2.24 per share Exercise price for 8,389 options into Ceribell common stock
Option exercise price 2 $3.65 per share Exercise price for 4,864 options into Ceribell common stock
Option exercise price 3 $4.70 per share Exercise price for 23 options into Ceribell common stock
Rule 10b5-1 plan adoption date June 5, 2026 Date Raymond Woo adopted the trading plan governing the reported transactions
Rule 10b5-1 trading plan regulatory
"The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted"
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.
Stock Option financial
"Stock Option (Right to Buy) reported as a derivative security"
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.
Common Stock financial
"underlying security title listed as Common Stock"
Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

What insider transactions did Ceribell (CBLL) report for Raymond Woo on September 8, 2026?

Ceribell reported that Chief Technology Officer Raymond Woo exercised options for 13,276 shares of common stock and sold 4,887 shares of common stock on September 8, 2026.

At what prices were Raymond Woo’s Ceribell (CBLL) stock options exercised?

Raymond Woo exercised Ceribell stock options at exercise prices of $2.24, $3.65, and $4.70 per share, each converting into an equal number of common shares as reported.

What price did Raymond Woo receive for the Ceribell (CBLL) shares sold?

The filing reports that 4,887 shares of Ceribell common stock were sold at a price of $24.33 per share on September 8, 2026.

Were Raymond Woo’s Ceribell (CBLL) trades made under a Rule 10b5-1 plan?

Yes. The company states that the transactions reported for Raymond Woo were effected pursuant to a Rule 10b5-1 trading plan adopted on June 5, 2026.

How many Ceribell (CBLL) stock options did Raymond Woo exercise in total?

Raymond Woo exercised options covering 13,276 shares of Ceribell common stock in three tranches: 8,389 shares, 4,864 shares, and 23 shares.

What types of securities were involved in Raymond Woo’s Ceribell (CBLL) Form 4?

The Form 4 reports exercises of stock options, each convertible into Ceribell common stock, and related transactions in the underlying common stock, including a sale of 4,887 common shares.

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

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Learn about SEC filing dates
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*
Woo Raymond

(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)
Director10% Owner
XOfficer (give title below)Other (specify below)
Chief Technology Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
09/08/2026
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 Stock09/08/2026M(1)8,389A$2.24203,118D
Common Stock09/08/2026M(1)4,864A$3.65207,982D
Common Stock09/08/2026M(1)23A$4.7208,005D
Common Stock09/08/2026S(1)4,887D$24.33203,118D
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)$2.2409/08/2026M(1)8,389 (2)06/10/2029Common Stock8,389$00D
Stock Option (Right to Buy)$3.6509/08/2026M(1)4,864 (3)06/10/2031Common Stock4,864$053,501D
Stock Option (Right to Buy)$4.709/08/2026M(1)23 (2)02/16/2033Common Stock23$019,044D
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 on June 5, 2026.
2. The stock option is fully vested and currently exercisable.
3. The option vests with respect to 1/48 of the shares subject thereto on each monthly anniversary of June 10, 2021, subject to the Reporting Person's continued employment or service relationship with the Issuer on each such vesting date.
Remarks:
Exhibit 24 - Power of Attorney
/s/ Jessica Puathasnanon, Attorney-in-Fact for Raymond Woo09/10/2026
** 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)

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