Whalen Amanda 4

What Happened

• Amanda Whalen, Chief Financial Officer of Klaviyo (KVYO), sold a total of 14,000 shares in open-market transactions on March 12, 2026, receiving aggregate proceeds of approximately $274,151.
• The sales were 8,923 shares reported at a weighted average price of $19.72 (proceeds $175,962) and 5,077 shares reported at a weighted average price of $19.34 (proceeds $98,189).

Key Details

• Transaction date: March 12, 2026; Form 4 filed March 13, 2026 (timely filing).
• Prices/ranges: the 8,923-share lot reported at $19.72 (shares in that lot sold across prices from $19.385 to $20.38); the 5,077-share lot reported at $19.34 (sold across $19.27 to $19.38). The filer can provide breakdowns by price on request.
• Shares owned after transaction: 52,394 vested shares of Series A common stock plus 360,031 unvested restricted stock units (RSUs) — totaling 412,425 shares/RSU equivalents (per footnote disclosure).
• Footnote: These sales were made pursuant to a Rule 10b5-1 trading plan adopted by Ms. Whalen on August 21, 2025.
• Transaction code: S = Sale (not a purchase or option exercise).

Context

• Sales under a pre-established 10b5-1 plan are typically scheduled transactions and do not, by themselves, indicate the insider’s current view of the company.
• For retail investors, purchases can be more informative of insider conviction; this filing documents a planned sale and provides the insider’s remaining vested and unvested holdings.