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Ceribell (CBLL) CTO exercises options, sells 11,112 shares and gets new grants

Filing Impact
(Neutral)
Filing Sentiment
(Neutral)
Form Type
4

Rhea-AI Filing Summary

Ceribell, Inc. Chief Technology Officer Raymond Woo reported a mix of option exercises, stock sales, and new equity awards. On April 1, he exercised stock options for a total of 11,112 shares of common stock at exercise prices of $2.24 and $4.70 per share, then sold the same 11,112 shares in open-market transactions at prices around $18.53–$18.58. The filing notes these trades were made under a Rule 10b5-1 trading plan. Woo also received new grants: 51,227 stock options at an exercise price of $18.50 and 30,736 restricted stock units, bringing his direct common stock holdings to 197,648 shares after the transactions.

Positive

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Insights

Routine option exercise-and-sell plus new equity grants under a 10b5-1 plan.

Chief Technology Officer Raymond Woo exercised stock options for 11,112 shares of Ceribell common stock at strike prices of $2.24 and $4.70, then sold the same number of shares around $18.5 per share. This is a classic exercise-and-sell pattern.

The filing shows these sales occurred pursuant to a Rule 10b5-1 trading plan, indicating they were pre-arranged rather than timed discretionarily. Woo simultaneously received 51,227 new options at $18.50 and 30,736 RSUs, ending with 197,648 common shares held directly.

This combination of monetizing previously granted options while accepting sizable new equity awards points to routine compensation and liquidity management. The net economic exposure includes common shares plus fresh options and RSUs; no remaining unexercised options are listed in the derivative summary for this filing.

Insider Woo Raymond
Role Chief Technology Officer
Sold 11,112 shs ($206K)
Type Security Shares Price Value
Exercise Stock Option (Right to Buy) 1,472 $0.00 --
Exercise Stock Option (Right to Buy) 3,025 $0.00 --
Exercise Stock Option (Right to Buy) 6,615 $0.00 --
Grant/Award Stock Option (Right to Buy) 51,227 $0.00 --
Exercise Common Stock 1,472 $2.24 $3K
Sale Common Stock 1,472 $18.58 $27K
Exercise Common Stock 3,025 $4.70 $14K
Sale Common Stock 3,025 $18.53 $56K
Exercise Common Stock 6,615 $4.70 $31K
Sale Common Stock 6,615 $18.57 $123K
Grant/Award Common Stock 30,736 $0.00 --
Holdings After Transaction: Stock Option (Right to Buy) — 9,858 shares (Direct); Common Stock — 168,384 shares (Direct)
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 on May 28, 2025. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.35 to $18.96, 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. Grant of restricted stock units ("RSUs"). The stock option is fully vested and currently exercisable. 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 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. The shares subject to the option vest on each quarterly anniversary from May 20, 2026, subject to the Reporting Person's continued employment service relationship with the Issuer on each such vesting date.
Options exercised 11,112 shares Common stock acquired via option exercise on April 1, 2026
Exercise prices $2.24 and $4.70/share Strike prices for exercised stock options
Shares sold 11,112 shares Open-market sales of common stock on April 1, 2026
Sale price range $18.35–$18.96/share Weighted-average sale prices with intraday range per footnote
New options granted 51,227 options at $18.50 Stock option grant expiring April 1, 2036
RSUs granted 30,736 RSUs Restricted stock unit grant to CTO on April 1, 2026
Common shares held 197,648 shares Direct common stock ownership after 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"
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.
restricted stock units ("RSUs") financial
"Grant of restricted stock units ("RSUs")."
Restricted stock units (RSUs) are a company promise to give an employee shares of stock (or cash equivalent) in the future, but only after certain conditions—usually staying with the company for a set time or hitting performance goals—are met. Investors watch RSUs because when they vest they increase the number of shares outstanding and can lead insiders to sell shares, affecting share price, company dilution and the true cost of employee pay.
Stock Option (Right to Buy) financial
"security_title": "Stock Option (Right to Buy)""
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.
exercise or conversion of derivative security financial
"transaction_code_description": "Exercise or conversion of derivative security""
Form 4 Insider Transactions: What Each Field Means →
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)
04/01/2026		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 Stock04/01/2026M(1)1,472A$2.24168,384D
Common Stock04/01/2026S(1)1,472D$18.58(2)166,912D
Common Stock04/01/2026M(1)3,025A$4.7169,937D
Common Stock04/01/2026S(1)3,025D$18.53(2)166,912D
Common Stock04/01/2026M(1)6,615A$4.7173,527D
Common Stock04/01/2026S(1)6,615D$18.57(2)166,912D
Common Stock04/01/2026A30,736(3)A$0197,648D
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)$2.2404/01/2026M(1)1,472 (4)06/10/2029Common Stock1,472$09,858D
Stock Option (Right to Buy)$4.704/01/2026M(1)3,025 (5)02/16/2033Common Stock3,025$035,721D
Stock Option (Right to Buy)$4.704/01/2026M(1)6,615 (6)02/16/2033Common Stock6,615$025,678D
Stock Option (Right to Buy)$18.504/01/2026A51,227 (7)04/01/2036Common Stock51,227$051,227D
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 May 28, 2025.
2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $18.35 to $18.96, 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. Grant of restricted stock units ("RSUs").
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.
7. The shares subject to the option vest on each quarterly anniversary from May 20, 2026, subject to the Reporting Person's continued employment service relationship with the Issuer on each such vesting date.
/s/ Louisa Daniels, Attorney-in-Fact for Raymond Woo04/03/2026
** 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)

Source: View Original Filing on SEC EDGAR