Mark Brosius, EVP and Chief Manufacturing and Supply Chain Officer at Intuitive Surgical Inc, filed a Form 4 on November 2, 2026, reporting two open-market sales of common stock on October 29 and October 30, 2026, executed under a Rule 10b5-1 trading plan.

Key Highlights

  • First sale: 61 shares of common stock disposed of on October 29, 2026, at $447.85 per share.
  • Second sale: 63 shares of common stock disposed of on October 30, 2026, at $453.60 per share.
  • Remaining ownership: Brosius directly held 457 shares following the October 30 transaction, down from 520 shares after the October 29 transaction.
  • 10b5-1 plan: Both transactions were made pursuant to a trading plan that complies with SEC Rule 10b5-1 and expires on February 14, 2027, according to the filing.
  • Reporting person's role: Brosius is identified as an officer with the title EVP and Chief Manufacturing and Supply Chain Officer of Intuitive Surgical Inc (NASDAQ:ISRG).

Brosius Transaction Details: October 2026 Sales of Intuitive Surgical Common Stock

According to the Form 4 filed with the SEC on November 2, 2026, Mark Brosius reported two dispositions of Intuitive Surgical Inc common stock in Table I. The first transaction, dated October 29, 2026, involved the sale of 61 shares at a price of $447.85, reducing his direct beneficial ownership to 520 shares. The second transaction, dated October 30, 2026, involved the sale of 63 shares at a price of $453.60, further reducing his direct holdings to 457 shares.

The filing indicates both sales carried transaction code "S" and were classified as direct ownership. The filing notes that both transactions "took place in accordance with a Trading Plan that complies with SEC Rule 10b5-1 and expires on February 14, 2027." The form was signed on November 2, 2026, by Stephanie Lim-Ignacio on behalf of Brosius. No derivative securities were reported in Table II of the filing.

No amendment date was listed, indicating this is an original filing rather than a correction to a prior submission. The filing was made by one reporting person, as indicated on the form.

What Was Disclosed

Mark Brosius, an officer of Intuitive Surgical Inc (NASDAQ:ISRG), disclosed the sale of a total of 124 shares of common stock across two dates in late October 2026, both under a pre-established Rule 10b5-1 trading plan expiring February 14, 2027, leaving him with 457 directly held shares.