CHEW LEWIS 4

What Happened

• Lewis Chew, a director of Intuitive Surgical (ISRG), reported derivative activity on 2026-04-30. The filing shows an exercise/conversion of 531 derivative shares at $0.00 and a same-day disposition of 531 derivative shares (both reported as code M). In addition, Lewis was granted/awarded 554 restricted stock units (RSUs) (code A) recorded at $0.00.
• The filing reports $0 cash price for the exercise/conversion and the RSU grant (values reported as $0 in the Form 4 excerpt provided). This is not an open-market purchase or sale by the director; it reflects conversion/exercise activity and a compensation award.

Key Details

• Transaction date: 2026-04-30.
• Reported transactions: Exercise/conversion (M) — 531 shares acquired at $0.00 and 531 shares disposed (derivative); Grant/award (A) — 554 RSUs acquired at $0.00.
• Shares owned after transaction: Not disclosed in the provided filing excerpt.
• Footnote: The 554 RSUs vest 100% on the earlier of the one-year anniversary of the grant date or the next Annual Meeting of Stockholders, subject to the reporting person’s continued service.
• Timeliness: Filing date and Period of Report are both 2026-04-30, so the report appears timely (no late filing indicated).

Context

• Derivative transactions (code M) generally reflect exercising or converting options/other derivative instruments; the filing also shows a same-day disposition of the 531 derivative units. The Form 4 does not specify whether any underlying shares were sold for cash or used to cover tax withholding.
• The 554 RSUs are a compensation award and will vest according to the footnote schedule; RSU grants are routine director compensation and do not necessarily signal a buy/sell opinion by the insider.