Intuitive (ISRG) 4: LOEB GARY bought 2,612 shares at $0.00 on 2026-10-10; LOEB… (Oct 13, 2026)

=== SEC Form 4 — Statement of Changes in Beneficial Ownership === Document Type: 4 Period of Report: 2026-10-10 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: 2026-10-10 | Code: M (Exercise of derivative) Shares: +2,612 | Price: $0.00 Shares Owned After: 7,932 | Ownership: D (Direct) Footnotes: [F1] RSUs vest 25% per year over a four year period, commencing on the first anniversary of the grant date. RSUs convert into common stock on the vest date on a one-for-one basis. 25% of the shares have been released and a portion of the shares were held back to cover the tax withholding obligations. The net shares were deposited into the holders account. [Transaction #2] Security: Common Stock Date: 2026-10-10 | Code: F (Payment of exercise/tax) Shares: -1,296 | Price: $423.96 Total Value: $549,452.16 Shares Owned After: 6,636 | Ownership: D (Direct) Footnotes: [F1] RSUs vest 25% per year over a four year period, commencing on the first anniversary of the grant date. RSUs convert into common stock on the vest date on a one-for-one basis. 25% of the shares have been released and a portion of the shares were held back to cover the tax withholding obligations. The net shares were deposited into the holders account. --- Derivative Transactions --- [Transaction #1] Security: Restricted Stock Units Date: 2026-10-10 | Code: M (Exercise of derivative) Shares: -2,612 | Price: $0.00 Exercise Price: $0.00 Exercisable: N/A | Expires: 2026-10-10 Shares Owned After: 0 | Ownership: D (Direct) Footnotes: [F2] Each RSU granted represents a contingent right to receive one share of Intuitive Surgical common stock. The grant vests 25% on the first anniversary of the date of grant and annually thereafter, over a four year period. --- Footnotes (Complete Index) --- F1: RSUs vest 25% per year over a four year period, commencing on the first anniversary of the grant date. RSUs convert into common stock on the vest date on a one-for-one basis. 25% of the shares have been released and a portion of the shares were held back to cover the tax withholding obligations. The net shares were deposited into the holders account. F2: Each RSU granted represents a contingent right to receive one share of Intuitive Surgical common stock. The grant vests 25% on the first anniversary of the date of grant and annually thereafter, over a four year period. --- Signature --- /s/ By: Stephanie Lim-Ignacio For: Loeb, Gary Howard (2026-10-13)