Susan St. Ledger, a member of the Board of Directors at Klaviyo, disclosed the sale of 9,334 shares of Series A Common Stock for a transaction value of approximately $133,000, as reported in the SEC Form 4 filing.
Transaction summary
Metric
Value
Shares sold (direct)
9,334
Transaction value
~$133,000
Post-transaction shares (direct)
10,939
Post-transaction value (direct ownership)
~$156,000
Transaction and post-transaction values based on SEC Form 4 weighted average price ($14.27).
Key questions
How does this sale compare to St. Ledger’s historical trading patterns?The 9,334-share disposition is larger than her previous direct sales (such as the 3,413-share sale on Sept. 10, 2025), but in line with her historical average sell size of approximately 7,749 shares; the scale reflects a declining available holdings base rather than a change in cadence.
What is the significance of the derivative context in this transaction?The shares sold were converted from derivative securities into Series A Common Stock immediately prior to sale, indicating the transaction was structured for liquidity.
How does this transaction affect St. Ledger’s overall ownership and control?While her direct Series A stake decreased by 46.04%, her remaining direct Series A holdings total 10,939 shares after the transaction.
What is the market context for this sale?The transaction occurred at prices around $14.27 per share, near the May 18, 2026 close of $14.61 and after a one-year price decline of 55.88%.
Company overview
Metric
Value
Price (as of market close May 18, 2026)
$14.61
Market capitalization
$4.45 billion
Revenue (TTM)
$1.31 billion
1-year price change
-55.88%
* 1-year performance calculated using May 18, 2026 as the reference date.
Company snapshot
Klaviyo offers a software-as-a-service platform for marketing automation, including email, SMS, push notifications, product reviews, and a customer data platform.
It generates revenue through subscription fees for its cloud-based marketing solutions, targeting scalable usage by businesses of various sizes.
The company serves individuals, small and medium enterprises, and businesses primarily in North America, Western Europe, Canada, the UK, Australia, and New Zealand.
Klaviyo operates at scale as a leading provider of data-driven marketing automation tools, enabling clients to deliver personalized communications across multiple digital channels. The company leverages a robust SaaS model that supports recurring revenue and high customer retention. Its competitive edge lies in its integrated platform and focus on actionable customer insights for e-commerce and digital-first businesses.
What this transaction means for investors
The May 18 stock sale by Klaviyo Board of Directors member Susan St. Ledger is not a cause for investor concern. She executed the transaction as part of a Rule 10b5-1 trading plan, adopted in June of 2025.
A Rule 10b5-1 trading plan is often used by insiders to avoid accusations of trading on insider information. In addition, she still holds nearly 11,000 Series A shares and over 50,000 Series B Common Stock, which can be converted into Series A. This suggests she is not in a rush to dispose of her holdings.
The sale came at a time when Klaviyo stock was down, dropping to a 52-week low of $13.53 on May 13, just days before St. Ledger’s transaction. Like many SaaS stocks, Klaviyo was impacted by a sector-wide sell-off as Wall Street became fearful that artificial intelligence would strip SaaS companies of their business. Shares were also impacted by the departure of its CFO.
In Klaviyo’s case, AI does not appear to be affecting results. The company reported first-quarter revenue of $358 million, a strong 28% year-over-year increase. Thanks to its excellent performance to start the year, Klaviyo raised its full-year 2026 sales guidance to $1.5 billion, which represents year-over-year growth of 23%.
Because its stock is down, Klaviyo’s price-to-sales ratio of three is around a low point for the past year. This suggests now is a good time to buy shares but not to sell.
Should you buy stock in Klaviyo right now?
Before you buy stock in Klaviyo, consider this:
The Motley Fool Stock Advisor analyst team just identified what they believe are the 10 best stocks for investors to buy now… and Klaviyo wasn’t one of them. The 10 stocks that made the cut could produce monster returns in the coming years.
Consider when Netflix made this list on December 17, 2004… if you invested $1,000 at the time of our recommendation, you’d have $477,813!* Or when Nvidia made this list on April 15, 2005… if you invested $1,000 at the time of our recommendation, you’d have $1,320,088!*
Now, it’s worth noting Stock Advisor’s total average return is 986% — a market-crushing outperformance compared to 208% for the S&P 500. Don’t miss the latest top 10 list, available with Stock Advisor, and join an investing community built by individual investors for individual investors.
See the 10 stocks »
*Stock Advisor returns as of May 23, 2026.
Robert Izquierdo has no position in any of the stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. The Motley Fool has a disclosure policy.
A Klaviyo Director Sold Over 9,000 Company Shares. What Does That Mean for Investors? was originally published by The Motley Fool
