SCHEDULE: Vanguard Group Discloses 10.15% Passive Stake in Klaviyo Inc.

The Vanguard Group has filed an amended Schedule 13G, reporting a 10.15% beneficial ownership stake in Klaviyo Inc.'s common stock as of June 30, 2025.

Summary

• The Vanguard Group, based in Pennsylvania, filed an Amendment No. 3 to Schedule 13G regarding its beneficial ownership in Klaviyo Inc.
• As of June 30, 2025, The Vanguard Group beneficially owns an aggregate of 10,728,178 shares of Klaviyo Inc. common stock.
• This represents 10.15% of the total class of securities.
• The Vanguard Group holds sole dispositive power over 10,605,496 shares and shared dispositive power over 122,682 shares.
• The Vanguard Group holds sole voting power over 0 shares and shared voting power over 21,770 shares.
• The filing certifies that the securities were acquired and are held in the ordinary course of business, not for the purpose of changing or influencing control of the issuer.

Sentiment

Score: 5

Explanation: The document is a factual disclosure of passive ownership, inherently neutral in sentiment. It indicates a significant institutional investment, which can be seen positively, but does not contain performance or strategic updates.

Positives

• A major institutional investor, The Vanguard Group, holds a significant passive stake of 10.15% in Klaviyo Inc., indicating long-term investment interest.

Future Outlook

No forward-looking statements or guidance are provided in this beneficial ownership disclosure.

Management Comments

• The securities referred to above were acquired and are held in the ordinary course of business and were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under 240.14a-11.

Industry Context

This filing reflects a routine disclosure by a large asset manager, The Vanguard Group, of its passive investment in Klaviyo Inc. It indicates that Klaviyo Inc. is part of Vanguard's investment portfolios, consistent with its strategy of broad market exposure through various funds.

Comparison to Industry Standards

• The 10.15% stake held by The Vanguard Group is a substantial passive investment, typical for large index fund managers like Vanguard, BlackRock, or State Street, which often hold significant stakes across a wide range of publicly traded companies to mirror market indices.
• This level of ownership is common for institutional investors that do not seek to influence management or control the company, aligning with the passive investment strategies of entities like Vanguard.

Stakeholder Impact

• Shareholders: Provides transparency regarding a significant institutional investor's stake, potentially signaling long-term confidence from a major passive fund manager.

Key Dates

Keywords

Klaviyo Inc., Vanguard Group, Schedule 13G, Beneficial Ownership, Common Stock, Institutional Investor, Passive Investment, SEC Filing, Ownership Disclosure