New York, May 20, 2026, 04:16 (EDT)
- Klaviyo finished Tuesday at $14.70, gaining 0.6%. Shares remain close to their 52-week low after a steep drop following earnings.
- Investors tracking insider sales at Klaviyo got fresh news May 18, with a Form 144 notice filing that brought another short-term trading data point.
- Klaviyo lifted its 2026 outlook, but the main concern remains: is growth now slowing more quickly than margins are picking up?
Klaviyo shares traded near recent lows early Wednesday, with a new insider-sale filing out. Investors are also looking at the marketing-software company’s better first-quarter profit and higher full-year outlook.
U.S. markets were still closed in New York. The core NYSE session is 9:30 a.m. to 4:00 p.m. ET. According to its 2026 holiday schedule, the next closure is Memorial Day on May 25, not May 20.
Klaviyo ended Tuesday at $14.70, adding 9 cents, or 0.6%. Shares moved between $14.68 and $15.45 during the session. After hours, the stock was quoted at $14.96, StockAnalysis data showed. Klaviyo is still trading just above its 52-week low of $13.53.
Klaviyo’s stock is still deep in the red despite a slight rebound. Finviz data puts shares down 26.7% for the past month and off 57.4% over the past year. Market cap stands near $4.4 billion.
Klaviyo’s investor-relations site showed a Form 144 dated May 18, saying it was for a proposed sale of securities. The filing is required when an affiliate plans some sales under Rule 144. The form signals intent but doesn’t mean the sale happened.
Growth software stocks are struggling in the current market. Wall Street closed down Tuesday, dragged by inflation concerns that sent Treasury yields up, according to Reuters. The Nasdaq lost the most ground. Higher yields hit software shares as they lead investors to value future earnings less.
Klaviyo posted a better quarter than the stock shows. First-quarter revenue was up 28% to $358.0 million. The company also boosted its full-year revenue guidance to a range of $1.514 billion to $1.522 billion, which would be about 23% growth for 2026.
Klaviyo co-founder and co-CEO Andrew Bialecki said the quarter had “strong momentum” and posted the best operating margin since the IPO. He pointed to AI tools built with customer data, saying, “agents are only as good as the systems beneath them.” investors.klaviyo.com
Klaviyo’s second-quarter revenue outlook came in at $359 million to $363 million, or 23% to 24% growth. That’s slower than the first quarter. Shares often fall on slowing growth rates, even as the company upped its full-year forecast.
Klaviyo flagged a management risk with CFO Amanda Whalen set to leave her post on Aug. 21, 2026, and stay as an adviser until November as the search for her replacement gets underway. Whalen said Klaviyo was “the strongest it has ever been.” Investors still need to price in a CFO handover at a company that only went public less than three years ago. investors.klaviyo.com
Klaviyo flagged better margins. Non-GAAP operating income, which leaves out items like stock compensation, came in at $58.6 million for the first quarter, for a 16% margin. Customers generating more than $50,000 in annual recurring revenue climbed 38% to 4,175.
Competitive risk is still the big issue for Klaviyo. The company’s latest 10-Q names Adobe, Salesforce, Mailchimp, and Braze as key rivals and flags AI as a swing factor if others move quicker or launch stronger tools. Klaviyo also cautioned that its fast revenue growth could slow and competition could affect its numbers.
Analyst support for the stock is still there, but notes have taken a more cautious turn. Benzinga data shows Macquarie, Goldman Sachs, and Citigroup all issued updates in early May. Macquarie kept its neutral call and set a $17 price target. The overall analyst consensus remains at buy.
Klaviyo gets a test Wednesday. If shares trade above Tuesday’s after-hours levels, buyers may be shrugging off the filing and CFO change. But a drop toward the May low would show the market still sees Klaviyo as a growth stock with momentum fading, not one beating and raising.
