Intuitive Surgical Director Gary Guthart Disposes of $9.08M in Stock Under 10b5-1 Plan

Executive Summary

On October 23, 2026, Gary S. Guthart, Director at Intuitive Surgical Inc ($ISRG), completed a sale of 20,095 shares of Common Stock at a volume-weighted average price of $451.6117, generating gross proceeds of approximately $9.08 million. The transaction was reported to the SEC on Form 4 on October 26, 2026.

Transaction Details

• Security: Common Stock
• Nature of Transaction: Open market sale (Transaction Code 'S')
• Shares Sold: 20,095
• Weighted Average Price: $451.6117 (Individual price ranges spanned from $444.04 to $458.10)
• Total Transaction Value: $9,075,137.11
• Ownership Post-Transaction: 1,204,530 shares held indirectly through a Trust, alongside 26,247 shares held in trust for his daughter and 26,247 shares in trust for his son.

Governance and Trading Plan Context

The transaction was executed pursuant to a Rule 10b5-1 trading plan established earlier, with an expiration date of June 15, 2027. Rule 10b5-1 trading plans allow corporate insiders to set up a predetermined schedule for buying or selling shares, shielding them from accusations of insider trading based on non-public material information.

Impact and Holdings Assessment

Despite the significant monetary value of $9.08 million, the disposal represents approximately 1.6% of Dr. Guthart's primary trust holdings. He continues to hold over 1.25 million shares across various family trust accounts, maintaining significant alignment with long-term shareholder value. Because the sale was executed under an established Rule 10b5-1 plan and reflects a modest fraction of his overall holdings, it is rated as having Medium trading significance.