Rubrik: CTO Nithrakashyap Arvind sold 38,460 shares

What happened

• The Form 4 reports that Nithrakashyap Arvind, Rubrik's chief technology officer and a director, sold a total of 38,460 shares in open-market transactions on Oct 5, Oct 6 and Oct 7, 2026 for combined proceeds of $4,781,314.
• The filing also reports conversions of derivative securities: 2,501 shares on Oct 5, 12,820 shares on Oct 6 and 12,820 shares on Oct 7, each reported at $0.00 per share.

Key details

• Transaction dates and amounts:
  • Oct 5, 2026 — open-market sales totaling 12,820 shares (individual sales at $118.92, $120.26, $121.20, $121.95, $122.99, $123.80) for $1,572,250.
  • Oct 6, 2026 — open-market sales totaling 12,820 shares (individual sales at $125.35, $126.14, $126.87, $127.70) for $1,617,542.
  • Oct 7, 2026 — open-market sales totaling 12,820 shares (individual sales at $123.32, $124.05, $124.79, $125.57) for $1,591,522.
  • Conversions of derivative securities reported as acquired at $0.00: 2,501 shares on Oct 5, 12,820 shares on Oct 6, 12,820 shares on Oct 7.
• Shares owned after the transactions: not reported in the provided Form 4.
• Footnotes: F1 states the sales reported were effected pursuant to a Rule 10b5-1 trading plan adopted Oct 15, 2025. Footnotes F2–F14 describe weighted-average price ranges for multiple trades; F15 describes Class B to Class A conversion rights; F16 notes certain shares are held of record by a revocable trust.
• Filing timeliness: the filing date is Oct 7, 2026; the Form 4 does not state that the filing was late.

Why it may matter

• The filing shows conversions of derivative securities followed by open-market sales on the same dates, i.e., converted shares were sold the same day.
• The trades are reported as open-market sales (transaction code S), not gifts or awards.
• The reporting person is an executive (chief technology officer and director); the filing does not identify the reporting person as a 10% owner.
• A filing does not show why the insider traded or why the company acted.