Intuitive (ISRG) 4: LOEB GARY bought 3,148 shares of Common Stock at $N/A on 20… (Mar 2, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-02-28 10b5-1 Pre-arranged Plan: No --- Issuer --- Name: INTUITIVE SURGICAL INC (ISRG) CIK: 0001035267 --- Reporting Owner --- Name: LOEB GARY CIK: 0001561733 Role: Officer (EVP & Chief Legal and Complian) --- Non-Derivative Transactions --- [Transaction #1] Security: Common Stock Date: 2026-02-28 | Code: M (Exercise of derivative) Shares: +3,148 | Price: $0.00 Shares Owned After: 8,082 | Ownership: D (Direct) Footnotes: [F1] Represents performance stock units ("PSUs") initially granted to the Reporting Person on February 28, 2023 subject to achievement of certain performance metrics. The performance criteria for the PSUs reported herein have been achieved, as determined by the Compensation Committee of the Issuer. The PSUs reported herein vest on February 28, 2026, the third anniversary of the grant date, subject to Reporting Person's continuous service to the Issuer through each such vesting date. [Transaction #2] Security: Common Stock Date: 2026-02-28 | Code: F (Payment of exercise/tax) Shares: -1,562 | Price: $503.51 Total Value: $786,482.62 Shares Owned After: 6,520 | Ownership: D (Direct) Footnotes: [F2] This transaction represents the withholding of shares to cover taxes applicable to a settlement of PSUs reported on this Form 4. --- Derivative Transactions --- [Transaction #1] Security: Performance Stock Units - 2-28-2023 Date: 2026-02-28 | Code: M (Exercise of derivative) Shares: -3,148 | Price: $0.00 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F1] Represents performance stock units ("PSUs") initially granted to the Reporting Person on February 28, 2023 subject to achievement of certain performance metrics. The performance criteria for the PSUs reported herein have been achieved, as determined by the Compensation Committee of the Issuer. The PSUs reported herein vest on February 28, 2026, the third anniversary of the grant date, subject to Reporting Person's continuous service to the Issuer through each such vesting date. [F1] Represents performance stock units ("PSUs") initially granted to the Reporting Person on February 28, 2023 subject to achievement of certain performance metrics. The performance criteria for the PSUs reported herein have been achieved, as determined by the Compensation Committee of the Issuer. The PSUs reported herein vest on February 28, 2026, the third anniversary of the grant date, subject to Reporting Person's continuous service to the Issuer through each such vesting date. --- Footnotes (Complete Index) --- F1: Represents performance stock units ("PSUs") initially granted to the Reporting Person on February 28, 2023 subject to achievement of certain performance metrics. The performance criteria for the PSUs reported herein have been achieved, as determined by the Compensation Committee of the Issuer. The PSUs reported herein vest on February 28, 2026, the third anniversary of the grant date, subject to Reporting Person's continuous service to the Issuer through each such vesting date. F2: This transaction represents the withholding of shares to cover taxes applicable to a settlement of PSUs reported on this Form 4. --- Signature --- /s/ By: Stephanie Lim-Ignacio For: Loeb, Gary Howard (2026-03-02)