Sec Form 4 Filing - Myriam Curet @ INTUITIVE SURGICAL INC - 2019-02-19

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Myriam Curet 2. Issuer Name and Ticker or Trading Symbol INTUITIVE SURGICAL INC [ ISRG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) EVP & Chief Medical Officer (Last) (First) (Middle) 1020 KIFER ROAD 3. Date of Earliest Transaction (MM/DD/YY) 02/19/2019 (Street) SUNNYVALE, CA94086 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 02/19/2019 S 2,938 D $ 543.514 94 ( 1 ) ( 2 ) D Common Stock 02/15/2021 M( 3 ) 999 A $ 0 1,093 D Common Stock 02/15/2021 F( 3 ) 496 D $ 0 597 D Common Stock 02/15/2021 M( 3 ) 1,000 A $ 0 1,597 D Common Stock 02/15/2021 F( 3 ) 394 D $ 0 1,203 D Common Stock 02/15/2021 M( 3 ) 583 A $ 0 1,786 D Common Stock 02/15/2021 F( 3 ) 207 D $ 0 1,579 D Common Stock 02/17/2021 S( 4 ) 1,485 D $ 782 94 D Common Stock 30 ( 5 ) I By Trust

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Restricted Stock Units $ 0 02/15/2021 M 999 ( 6 ) 02/15/2021 Common Stock 999 $ 0 0 D Restricted Stock Units $ 0 02/15/2021 M 1,000 ( 6 ) 02/15/2022 Common Stock 1,000 $ 0 1,000 D Restricted Stock Units $ 0 02/15/2021 M 583 ( 6 ) 02/15/2023 Common Stock 583 $ 0 1,166 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Myriam Curet 1020 KIFER ROAD SUNNYVALE, CA94086 EVP & Chief Medical Officer Signatures /s/ Donna Spinola For: Myriam Curet 02/17/2021 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The amount of securities beneficially owned in Column 5 is as of this Form 4 filing date, not as of the transaction date. ( 2 )Includes 46 shares acquired pursuant to the Issuer's Employee Stock Purchase Plan on January 31, 2021. ( 3 )RSUs convert into common stock on the vest date on a one-for-one basis. On the transaction date, 25% of the shares were released and a portion of the shares were held back to cover the statutory tax withholding requirement. The net shares were deposited into the holders account. ( 4 )These shares were sold in accordance with a Trading Plan that complies with SEC Rule 10b5-1 and expires on July 26, 2021. ( 5 )The Reporting Person's Form 5 filed with the SEC on 1/24/2019 reported in error a gift of 30 shares on 9/13/2018 and thus the Reporting Person's ownership in subsequent Section 16 reports was understated by 30 shares. This Form 4 corrects the aforementioned error. ( 6 )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.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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