Key facts
- This page summarizes Raymond Woo's Form 4 filing for Ceribell, Inc. (CBLL).
- 9 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 04 May 2026, 19:05.
Raymond Woo - 01 May 2026 Form 4 Insider Report for Ceribell, Inc. (CBLL)
- Reporting relationship
- Chief Technology Officer
- Issuer ticker
- CBLL
- Reported as of
- 01 May 2026
- Net transaction value
- -$226,928
- SEC form
- 4
- Accepted by SEC
- 04 May 2026, 19:05:35 UTC
- Prior SEC filing
- 03 Apr 2026
- Next SEC filing
- 26 May 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Louisa Daniels, Attorney-in-Fact for Raymond Woo
Source evidence
Original filing metadata and source links for verification.
5 source fields
Reporting owner
1 detail
Key filing fact
Raymond Woo filed Form 4 for Ceribell, Inc. (CBLL) on 04 May 2026.
Change
- Previous filing in this sequence was filed on 03 Apr 2026.
- Current net transaction value: -$226,928.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0002036112
Primary reporting owner
Woo Raymond
- Relationship
- Chief Technology Officer
- Address
- C/O CERIBELL, INC., 360 N. PASTORIA AVENUE, SUNNYVALE
- Signature
- /s/ Louisa Daniels, Attorney-in-Fact for Raymond Woo
- Signature date
- 04 May 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
CBLL
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +1,469
- Change %
- +0.74%
- Price
- $2.24*
- Shares after
- 199,117
- Date
- 01 May 2026
- Ownership
- Direct
- Footnotes
- F1
CBLL
transaction
Common Stock
Sale
- Transaction value
- $29,953
- Shares
- -1,469
- Change %
- -0.74%
- Price
- $20.39
- Shares after
- 197,648
- Date
- 01 May 2026
- Ownership
- Direct
- Footnotes
- F1, F2
CBLL
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +3,024
- Change %
- +1.5%
- Price
- $4.70*
- Shares after
- 200,672
- Date
- 01 May 2026
- Ownership
- Direct
- Footnotes
- F1
CBLL
transaction
Common Stock
Sale
- Transaction value
- $61,780
- Shares
- -3,024
- Change %
- -1.5%
- Price
- $20.43
- Shares after
- 197,648
- Date
- 01 May 2026
- Ownership
- Direct
- Footnotes
- F1, F2
CBLL
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +6,611
- Change %
- +3.3%
- Price
- $4.70*
- Shares after
- 204,259
- Date
- 01 May 2026
- Ownership
- Direct
- Footnotes
- F1
CBLL
transaction
Common Stock
Sale
- Transaction value
- $135,195
- Shares
- -6,611
- Change %
- -3.2%
- Price
- $20.45
- Shares after
- 197,648
- Date
- 01 May 2026
- Ownership
- Direct
- Footnotes
- F1, F2
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
CBLL
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -1,469
- Change %
- -15%
- Price
- $0.000000*
- Shares after
- 8,389
- Date
- 01 May 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 1,469
- Exercise price
- $2.24
- Footnotes
- F1, F3
CBLL
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -3,024
- Change %
- -8.5%
- Price
- $0.000000*
- Shares after
- 32,697
- Date
- 01 May 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 3,024
- Exercise price
- $4.70
- Footnotes
- F1, F4
CBLL
transaction
Derivative
Stock Option (Right to Buy)
Options Exercise
- Transaction value
- Shares
- -6,611
- Change %
- -26%
- Price
- $0.000000*
- Shares after
- 19,067
- Date
- 01 May 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 6,611
- Exercise price
- $4.70
- Footnotes
- F1, F3
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Rule 10b5-1 trading plan
These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.
Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).
Explanation of responses 4 footnotes
Footnote F1
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.
Footnote F2
The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $19.88 to $20.64, 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.
Footnote F3
The stock option is fully vested and currently exercisable.
Footnote F4
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.