Form 4: Klaviyo CFO Sells 14,000 Shares Under 10b5-1 Plan

Klaviyo's Chief Financial Officer, Amanda Whalen, sold 14,000 shares of Series A Common Stock on March 12, 2026, as part of a pre-arranged Rule 10b5-1 trading plan.

Summary

• Klaviyo's Chief Financial Officer, Amanda Whalen, disposed of a total of 14,000 shares of Series A Common Stock.
• The sales occurred on March 12, 2026, through two separate transactions.
• 8,923 shares were sold at a weighted average price of $19.72 per share, with prices ranging from $19.385 to $20.38.
• An additional 5,077 shares were sold at a weighted average price of $19.34 per share, with prices ranging from $19.27 to $19.38.
• These transactions were executed under a Rule 10b5-1 trading plan adopted by Ms. Whalen on August 21, 2025.
• Following these sales, Ms. Whalen beneficially owns 412,425 shares, comprising 52,394 shares of Series A Common Stock and 360,031 unvested restricted stock units.

Sentiment

Score: 6

Explanation: StockSavvy.ai views this as a largely neutral event. While an insider sale can sometimes be perceived negatively, the execution under a pre-established 10b5-1 plan mitigates concerns about opportunistic trading, reflecting standard personal financial management by an executive.

Positives

• The transactions were conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a planned sale rather than a reaction to new, non-public information.

Negatives

• An insider sale, even under a 10b5-1 plan, reduces the direct equity stake of a key executive in the company.

Future Outlook

NA

Industry Context

StockSavvy.ai notes that insider transactions, particularly sales, are closely watched by investors for signals about management's confidence. However, sales executed under a Rule 10b5-1 plan, like this one, are generally viewed as less indicative of future company performance as they are pre-scheduled and designed to avoid accusations of trading on material non-public information. Such plans are common among executives for personal financial planning.

Related Party Transactions

• The sale of shares by the Chief Financial Officer, Amanda Whalen, is a transaction involving a related party (an executive officer).

Stakeholder Impact

• Shareholders: The sale slightly reduces the direct equity alignment of a key executive, but the 10b5-1 plan context suggests it is for personal financial planning rather than a negative outlook on the company.

Key Dates

Recommendation

The insider sale by Klaviyo's CFO, Amanda Whalen, was executed under a pre-established Rule 10b5-1 trading plan. This indicates a planned, non-discretionary transaction for personal financial management rather than a signal of deteriorating company fundamentals or a lack of confidence. Therefore, this specific filing does not provide new information that would warrant a change in investment thesis, leading to a 'hold' recommendation based solely on this report.

Keywords

Klaviyo, KVYO, Form 4, Insider Sale, Amanda Whalen, CFO, 10b5-1 Plan, Stock Transaction, Equity Disposal, Series A Common Stock