Form 4: Ceribell CFO Sells Shares After Option Exercise

Ceribell Inc.'s Chief Financial Officer, Scott Blumberg, executed multiple option exercises and subsequent share sales totaling 36,000 shares, all under a Rule 10b5-1 trading plan.

Summary

• Scott Blumberg, Chief Financial Officer of Ceribell, Inc., reported transactions involving company common stock.
• On November 20, 2025, Blumberg disposed of 687 shares of common stock at a price of $13.64 per share to satisfy tax withholding obligations.
• On December 22, 2025, Blumberg exercised stock options for a total of 36,000 shares, consisting of 4,752 shares at an exercise price of $3.65, 11,529 shares at an exercise price of $3.65, and 19,719 shares at an exercise price of $4.70.
• Immediately following the option exercises on December 22, 2025, Blumberg sold all 36,000 acquired shares of common stock at a price of $21 per share.
• All transactions on December 22, 2025, were conducted pursuant to a pre-arranged Rule 10b5-1 trading plan.
• Following these reported transactions, Blumberg directly beneficially owns 118,842 shares of common stock.
• Blumberg also retains 6,869 unexercised stock options with an exercise price of $4.70, which vest monthly from April 1, 2023.

Sentiment

Score: 5

Explanation: Neutral. The filing reports routine insider transactions (option exercises and sales under a 10b5-1 plan) and a tax-related disposition. This is a standard disclosure and does not inherently signal strong positive or negative news about the company's operational performance or future prospects.

Positives

• The transactions were executed under a Rule 10b5-1 trading plan, indicating pre-planned sales and reducing concerns about opportunistic insider trading.
• The exercise of options and subsequent sale at $21 per share indicates a significant profit for the CFO, reflecting a substantial difference between the exercise prices ($3.65 and $4.70) and the market sale price.

Negatives

• The CFO sold a substantial number of shares (36,000 shares), which could be interpreted by some investors as a signal, although it is common for executives to diversify holdings or manage personal finances.
• A disposition of 687 shares was made to satisfy tax withholding obligations, which reduces the CFO's direct holdings.

Future Outlook

NA

Industry Context

NA

Stakeholder Impact

• Shareholders: The sale of shares by the CFO, while pre-planned, could be perceived negatively by some, potentially signaling a lack of confidence. However, the significant profit realized from option exercises might be viewed positively as it reflects a higher stock price.
• Employees: The mention of an Employee Stock Purchase Plan (ESPP) indicates a benefit available to employees, contributing to employee ownership.

Key Dates

Recommendation

The Form 4 filing details routine insider transactions by the CFO, including option exercises and subsequent sales under a pre-arranged 10b5-1 plan, along with a tax-related disposition. While the sale of a significant number of shares might raise questions, the pre-planned nature of the transactions and the substantial profit realized from the option exercises suggest a personal financial management strategy rather than a direct signal about the company's immediate prospects. The filing does not provide new operational or financial information to warrant a change in investment thesis, thus a 'hold' recommendation is appropriate.

Keywords

Ceribell Inc., CBLL, Scott Blumberg, CFO, Insider Trading, Form 4, Stock Options, Share Sale, Rule 10b5-1, Executive Compensation