CEO Andrew Bialecki prices secondary offering of 10.97M shares at $34, plans additional 8M share sale via 10b5-1 plan

Klaviyo, Inc.

CEO Bialecki sold 10,969,078 shares at $34 per share in secondary offering; no proceeds to Klaviyo.
Offering proceeds used to satisfy tax obligations from exercise of 21.4M shares of Series B options expiring in 2025.
After offering, Bialecki will adopt 10b5-1 plan to sell up to 8M shares (8.1% of beneficial ownership) through May 2026.
Goldman Sachs and Morgan Stanley acted as joint lead bookrunners for the offering.
Bialecki has not sold any shares since IPO in Sept 2023; annual salary remains $75,000 with no bonus or equity.

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