Rubrik Director John W. Thompson Exercises Options and Sells $1.56M in Stock via 10b5-1 Plan

Overview & Context

On October 1, 2026, Rubrik, Inc. (NYSE: RBRK) Director John Wendell Thompson executed a series of planned equity transactions consisting of an option exercise and subsequent open-market sales. The transactions were conducted pursuant to a pre-arranged Rule 10b5-1 trading plan adopted on October 6, 2025.

Transaction Details

• Stock Option Exercise: Thompson exercised stock options for 11,000 shares of Class B Common Stock at an exercise price of $4.38 per share, which were subsequently converted to Class A Common Stock.
• Direct Sales: Thompson sold the 11,000 Class A shares resulting from the option exercise in three tranches:
  • 896 shares at a weighted-average price of $114.71
  • 7,710 shares at a weighted-average price of $115.57
  • 2,394 shares at a weighted-average price of $116.46
  • Direct Proceeds: ~$1,272,630.10
• Indirect Sales (Trust): In addition, the John and Sandra Thompson Trust sold 2,500 Class A shares in three tranches:
  • 300 shares at a weighted-average price of $114.68
  • 1,700 shares at a weighted-average price of $115.62
  • 500 shares at a weighted-average price of $116.47
  • Trust Proceeds: ~$289,193.00
• Total Sale Volume: 13,500 shares for aggregate gross proceeds of approximately $1,561,823.10.

Post-Transaction Holdings

Following the transactions:

• Direct Class A Common Stock: 8,362 shares
• Indirect Class A Common Stock (Trust): 5,000 shares
• Direct Class B Common Stock: 50,001 shares
• Indirect Class B Common Stock (Trust): 815,338 shares
• Remaining Stock Options: 55,946 fully vested options

Market Significance

This transaction carries Low informational significance. The sales were pre-programmed under a Rule 10b5-1 trading plan established almost a year prior, primarily representing standard option monetization and portfolio diversification. Thompson maintains substantial ongoing economic exposure to Rubrik through direct and indirect ownership of more than 865,000 shares of Class B Common Stock and additional vested options.