[Form 4] Ceribell, Inc. Insider Trading Activity
Rhea-AI Filing Summary
Ceribell, Inc. filed a Form 4 reporting recent stock transactions by its Chief Technology Officer. On 11/20/2025, 687 shares of common stock were withheld or disposed of at $13.64 in a transaction coded “F,” typically used for tax withholding.
On 01/02/2026, the CTO exercised multiple stock options and immediately sold the resulting shares in pre-planned trades under a Rule 10b5-1 trading plan. Options with exercise prices of $2.24 and $4.70 were exercised in blocks of 1,472, 3,025 and 6,615 shares, followed by sales coded “S” at weighted-average prices of $21.29, $21.18 and $21.16.
After these transactions, the reporting person beneficially owned 167,317 shares of Ceribell common stock, which includes 300 shares acquired through the company’s employee stock purchase plan. The filing also notes outstanding stock options that are vested or continue to vest over time, extending to expiration dates in 2029 and 2033.
Positive
- None.
Negative
- None.
Insider Trade Summary
| 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 | -- |
| Exercise | Common Stock | 1,472 | $2.24 | $3K |
| Sale | Common Stock | 1,472 | $21.29 | $31K |
| Exercise | Common Stock | 3,025 | $4.70 | $14K |
| Sale | Common Stock | 3,025 | $21.18 | $64K |
| Exercise | Common Stock | 6,615 | $4.70 | $31K |
| Sale | Common Stock | 6,615 | $21.16 | $140K |
| Tax Withholding | Common Stock | 687 | $13.64 | $9K |
Footnotes (1)
- Includes 300 shares acquired under the Issuer's Employee Stock Purchase Plan on July 31, 2025. 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 $20.75 to $21.54, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.75 to $21.53, 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 price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $20.76 to $21.54, 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 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.
FAQ
What does the Ceribell (CBLL) Form 4 filing disclose?
The Form 4 shows that Ceribell’s Chief Technology Officer exercised stock options and sold shares in several transactions, and reports his updated beneficial ownership in company stock.
Who is the insider involved in these Ceribell (CBLL) transactions?
The transactions involve Ceribell’s Chief Technology Officer, who is an officer of the company and therefore required to report trades in the company’s equity securities.
What stock transactions did the Ceribell CTO report on November 20, 2025?
On 11/20/2025, the CTO reported a transaction coded “F” involving 687 shares of common stock at a price of $13.64, which typically reflects shares withheld or disposed of for tax purposes.
What option exercises and stock sales occurred on January 2, 2026 for CBLL?
On 01/02/2026, the CTO exercised stock options with exercise prices of $2.24 and $4.70 in blocks of 1,472, 3,025 and 6,615 shares, then sold the resulting shares at weighted-average prices of $21.29, $21.18 and $21.16.
Were the Ceribell CTO’s trades made under a Rule 10b5-1 trading plan?
Yes. The filing states that the transactions were effected pursuant to a Rule 10b5-1 trading plan previously adopted by the reporting person.
What do the vesting terms of the Ceribell CTO’s stock options look like?
One option grant is fully vested and currently exercisable. Other options vest in equal installments on each monthly anniversary of April 1, 2023, over 48 or 24 months, subject to continued employment or service.