Ceribell CFO sells 34,502 shares after option exercise
Ceribell, Inc. (CBLL) reported insider transactions by Chief Financial Officer Scott Blumberg on August 18–19, 2026.
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Form Type
4
Rhea-AI Filing Summary
Ceribell, Inc. (CBLL) reported insider transactions by Chief Financial Officer Scott Blumberg on August 18–19, 2026. Blumberg exercised stock options covering 34,502 shares of common stock at exercise prices of $4.70 and $9.41 per share, then sold 34,502 shares of common stock at prices around $25 per share, including a weighted average sale price of $25.03. All transactions were effected pursuant to a Rule 10b5-1 trading plan adopted on December 12, 2025.
Insider Trade Summary 10b5-1
Exercise and Sale: 34,502 shares ($571K approx. pre-tax spread)
Exercise and Sale
10 txns
Insider
Blumberg Scott
Role
Chief Financial Officer
Sold
34,502 shs ($864K)
Approx. gross sale proceeds
$864K
Approx. exercise cost
$292K
Approx. pre-tax spread
$571K
| Type | Security | Shares | Price | Value |
|---|---|---|---|---|
| Exercise | Stock Option (Right to Buy) F1, F4 | 6,179 | $0.00 | $0.00 |
| Exercise | Stock Option (Right to Buy) F1, F5 | 27,333 | $0.00 | $0.00 |
| Exercise | Common Stock F1 | 6,179 | $4.70 | $29K |
| Exercise | Common Stock F1 | 27,333 | $9.41 | $257K |
| Sale | Common Stock F1, F3 | 33,512 | $25.03 | $839K |
| Exercise | Stock Option (Right to Buy) F1, F4 | 690 | $0.00 | $0.00 |
| Exercise | Stock Option (Right to Buy) F1, F5 | 300 | $0.00 | $0.00 |
| Exercise | Common Stock F1, F2 | 690 | $4.70 | $3K |
| Exercise | Common Stock F1 | 300 | $9.41 | $3K |
| Sale | Common Stock F1 | 990 | $25.00 | $25K |
Holdings After Transaction:
Stock Option (Right to Buy) — 90,524 contracts (Direct);
Common Stock — 148,121 shares (Direct)
Footnotes (5)
- F1. The transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on December 12, 2025.
- F2. Includes 438 shares acquired under the Issuer's Employee Stock Purchase Plan on July 31, 2026.
- F3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $25 to $25.16, 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.
- 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.
- F5. The stock option is fully vested and currently exercisable.
Key Figures
Options exercised: 34,502 shares of Common Stock
Shares sold: 34,502 shares of Common Stock
Option exercise price: $4.70 per share
+4 more
7 metrics
Options exercised
34,502 shares of Common Stock
Total underlying shares from option exercises (code M) on August 18–19, 2026
Shares sold
34,502 shares of Common Stock
Aggregate non-derivative sales (code S) on August 18–19, 2026
Option exercise price
$4.70 per share
Exercise price for portions of the stock options exercised into common stock
Option exercise price
$9.41 per share
Exercise price for additional stock options exercised into common stock
Weighted average sale price
$25.03 per share
Weighted average price for 33,512 shares sold in multiple trades ranging $25.00–$25.16
10b5-1 plan adoption date
December 12, 2025
Date the Rule 10b5-1 trading plan governing these transactions was adopted
ESPP shares
438 shares
Shares acquired under the Employee Stock Purchase Plan on July 31, 2026, included in holdings
Key Terms
Rule 10b5-1 trading plan, weighted average price, Employee Stock Purchase Plan, vests, +1 more
5 terms
Rule 10b5-1 trading plan regulatory
"transactions 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.
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.
Employee Stock Purchase Plan financial
"Includes 438 shares acquired under the Issuer's Employee Stock Purchase Plan"
An employee stock purchase plan is a company program that lets workers buy shares through small payroll deductions, often at a discount to the market price and after a set offering period. Think of it like a workplace savings plan that turns into ownership: it encourages employees to share in the company’s success and can create predictable buying or selling of stock that investors watch because it affects supply, demand and employee incentives.
vests financial
"The option vests with respect to 1/48 of the shares subject thereto"
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.
FAQ
AI-generated questions and answers. How Rhea-AI works. Not financial advice.
What insider transactions did Ceribell (CBLL) report for CFO Scott Blumberg?
Ceribell reported that CFO Scott Blumberg exercised stock options for 34,502 shares of common stock and sold 34,502 shares of common stock on August 18–19, 2026, in a series of option exercises and open-market sales.
What stock options did the Ceribell (CBLL) CFO exercise in this Form 4?
Scott Blumberg exercised stock options for 34,502 shares of Ceribell common stock, consisting of options with exercise prices of $4.70 per share and $9.41 per share, with expiration dates in 2033 and 2034, respectively.
Were the Ceribell (CBLL) insider transactions under a Rule 10b5-1 plan?
Yes. A footnote states that all transactions reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 12, 2025.
Did the Ceribell (CBLL) filing mention any Employee Stock Purchase Plan activity?
Yes. A footnote notes that holdings include 438 shares acquired under Ceribell’s Employee Stock Purchase Plan on July 31, 2026, though this is contextual and not itself listed as a separate transaction row.
AI-generated analysis. How Rhea-AI works. Not financial advice.
