Klaviyo, Inc., the only CRM platform purpose-built for consumer brands, announced today that CEO and co-founder Andrew Bialecki will adopt a pre-arranged stock trading plan under Rule 10b5-1 of the Securities Exchange Act of 1934.

The move follows the closing of a previously announced underwritten public offering of the Company’s Series A common stock. Under the new trading plan (the “Plan”), Mr. Bialecki may sell up to 8,000,000 shares of Series A common stock, subject to specific terms and market conditions. The Plan will remain in effect until all shares are sold or until May 29, 2026, whichever comes first.

Purpose of the Plan: Asset Diversification

Mr. Bialecki’s Plan is designed to allow for personal financial diversification and adheres to the Company’s internal policies and compliance guidelines. Rule 10b5-1 trading plans enable executives to sell shares on a predetermined schedule without possessing material, non-public information, helping avoid the perception of insider trading.

• Sales under the Plan are subject to pricing parameters and volume limitations.

• Mr. Bialecki will have no discretion over the number or timing of share sales.

• The Plan covers only 8.1% of his current beneficial ownership, which totals 98,865,414 shares of Series B common stock.

Compensation Remains Modest

Mr. Bialecki’s compensation remains unchanged:

• Base Salary: $75,000 per year

• No bonuses, stock options, or RSUs currently granted

Additional compensation details are available in Klaviyo’s SEC filings.

Transparency Commitment

Any stock sales conducted under the Plan will be publicly disclosed through Form 4 filings with the U.S. Securities and Exchange Commission (SEC), ensuring full transparency to investors and stakeholders.