Vanguard Lowers Stake in Rubrik Inc Below 5% Threshold

Overview of Filing

On October 30, 2026, Vanguard Capital Management LLC filed an amended Schedule 13G (Amendment No. 1) with the SEC regarding its holdings in Rubrik, Inc. (CIK: 0001943896). The event date triggering the filing was September 30, 2026.

Key Ownership Metrics

• Aggregate Beneficial Ownership: 8,226,616 shares of Common Stock
• Class Ownership Percentage: 4.91%
• Voting Power:
  • Sole Voting Power: 1,262,011 shares
  • Shared Voting Power: 0 shares
• Dispositive Power:
  • Sole Dispositive Power: 8,226,616 shares
  • Shared Dispositive Power: 0 shares

Significance & Market Implications

• Sub-5% Threshold: Item 5 of the filing confirms that Vanguard has reduced its beneficial ownership percentage below the 5% threshold to 4.91%.
• Passive Nature: The certification under Item 10 confirms that the shares were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing control of the issuer.
• Impact: While institutional rebalancing is common, dipping below 5% relieves the filer of further continuous Schedule 13G reporting obligations unless holdings re-cross regulatory thresholds.