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Rubrik Officer Arvind Nithrakashyap Files Form 144 to Sell $11.7M in Class A Common Stock

Medium SignificanceSeptember 8, 2026 at 11:36:49 PM UTC

Rubrik, Inc.

$RBRK144CIK: 0001943896

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Filing Summary

šŸ“¢ Form 144 Notice of Proposed Sale: Rubrik, Inc. ($RBRK) šŸ‘¤ Insider: Arvind Nithrakashyap (Officer) šŸ“¦ Securities to be Sold: 128,200 Class A Common Shares šŸ’° Aggregate Market Value: $11,746,966 (~$91.63/share) šŸ“… Approx. Sale Date: 09/08/2026 šŸ“ Plan Details: Rule 10b5-1 plan adopted on 10/15/2025 šŸ¦ Broker: Goldman Sachs & Co. LLC

Comprehensive Analysis

Executive Summary

On September 8, 2026, Arvind Nithrakashyap, an Officer of Rubrik, Inc. ($RBRK), filed a Form 144 notifying the SEC of an intent to sell 128,200 shares of Class A Common Stock with an estimated aggregate market value of $11,746,966 (approx. $91.63 per share).

Transaction Details

  • Security: Class A Common Stock
  • Number of Shares: 128,200
  • Aggregate Market Value: $11,746,966
  • Outstanding Shares: 167,367,143 (sale represents ~0.08% of total outstanding shares)
  • Broker: Goldman Sachs & Co. LLC
  • Origin of Shares: Acquired via Restricted Stock Units (RSUs) on 01/16/2014 (73,156 shares) and 02/17/2021 (55,044 shares).

10b5-1 Trading Plan

The proposed sales are executed pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on October 15, 2025, providing pre-determined execution timing and reducing discretionary trading concerns.

Recent Trading Activity

In the preceding three months, the reporting person completed several smaller sales totaling 76,920 shares:

  • July 2026: 3 blocks of 12,820 shares on 07/06, 07/07, and 07/08 (~$3.33M total proceeds)
  • August 2026: 3 blocks of 12,820 shares on 08/03, 08/04, and 08/05 (~$3.05M total proceeds)
Topics:#Rubrik#RBRK#Form144#InsiderTrading#TechStocks

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