Rubrik Director John Thompson Files Form 144 for $2.73M Option Exercise & Sale

Insider Filing Analysis: Form 144 for Rubrik, Inc. ($RBRK)

Summary

On November 2, 2026, John Wendell Thompson, a Director of Rubrik, Inc., filed Form 144 announcing the proposed sale of 22,000 shares of common stock through Morgan Stanley Smith Barney LLC. The aggregate market value of the proposed transaction is $2,731,300.00, indicating an approximate price of $124.15 per share.

Key Details

• Nature of Acquisition: The securities to be sold are acquired via the exercise of stock options on November 2, 2026, paid in cash to the issuer.
• Pre-Arranged Trading Plan: The proposed sale is executed pursuant to a Rule 10b5-1 trading plan adopted on October 6, 2025.
• Past 3-Month Activity: Previous routine sales pursuant to 10b5-1 plans were executed monthly in August, September, and October 2026 across personal accounts and the John and Sandra Thompson Trust, totaling 40,500 shares for approximately $3.76M.
• Dilution / Float Impact: Rubrik reported 167,367,143 shares outstanding; this transaction represents roughly 0.013% of outstanding shares, posing minimal market impact.

Market Assessment

Given that this filing represents a planned stock option exercise and disposition under a pre-established Rule 10b5-1 trading plan adopted over a year prior, it conveys standard scheduled liquidity rather than a directional signal on company fundamentals. The market impact is considered Low.