Ownership Submission
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 OF SECURITIES

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
OMB APPROVAL
OMB Number: 3235-0287
Expires: January 31, 2005
Estimated average burden hours per response... 0.5

(Print or Type Responses)
1. Name and Address of Reporting Person *
Samath Jamie
  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)
VP & Principal Accounting Offi
(Last)
(First)
(Middle)
1020 KIFER ROAD
3. Date of Earliest Transaction (Month/Day/Year)
10/24/2017
(Street)

SUNNYVALE, CA 94086
4. If Amendment, Date Original Filed(Month/Day/Year)
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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 10/24/2017   M   474 A $ 238.9133 474 (1) D  
Common Stock 10/24/2017   S(2)   474 D $ 371.1863 0 (1) D  
Common Stock 10/24/2017   M   104 A $ 230.9967 104 (1) D  
Common Stock 10/24/2017   S(2)   104 D $ 371.1863 0 (1) D  
Common Stock 10/24/2017   M   108 A $ 178.3867 108 (1) D  
Common Stock 10/24/2017   S(2)   108 D $ 371.1863 0 (1) D  
Common Stock 10/24/2017   M   145 A $ 177.6833 145 (1) D  
Common Stock 10/24/2017   S(2)   145 D $ 371.1863 0 (1) D  
Common Stock 10/24/2017   M   148 A $ 171.3333 148 (1) D  
Common Stock 10/24/2017   S(2)   148 D $ 371.1863 0 (1) D  
Common Stock 10/24/2017   M   292 A $ 153.0467 292 (1) D  
Common Stock 10/24/2017   S(2)   292 D $ 371.1863 0 (1) D  
Common Stock 10/24/2017   M   293 A $ 148.03 293 (1) D  
Common Stock 10/24/2017   S(2)   293 D $ 371.1863 0 (1) D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number. SEC 1474 (9-02)

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 (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 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
(Month/Day/Year)
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
Non-Qualified Stock Option (right to buy) $ 148.03 10/24/2017   M     293   (3) 02/18/2024 Common Stock 293 $ 0 391 (1) D  
Non-Qualified Stock Option (right to buy) $ 153.0467 10/24/2017   M     292   (4) 08/15/2024 Common Stock 292 $ 0 392 (1) D  
Non-Qualified Stock Option (right to buy) $ 171.3333 10/24/2017   M     148   (3) 02/17/2025 Common Stock 148 $ 0 788 (1) D  
Non-Qualified Stock Option (right to buy) $ 177.6833 10/24/2017   M     145   (4) 08/17/2025 Common Stock 145 $ 0 788 (1) D  
Non-Qualified Stock Option (right to buy) $ 178.3867 10/24/2017   (1) M     108   (3) 02/16/2026 Common Stock 108 $ 0 984 D  
Non-Qualified Stock Option (right to buy) $ 230.9967 10/24/2017   M     104   (4) 08/15/2026 Common Stock 104 $ 0 985 (1) D  
Non-Qualified Stock Option (right to buy) $ 238.9133 10/24/2017   M     474   (3) 02/15/2027 Common Stock 474 $ 0 2,376 (1) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Samath Jamie
1020 KIFER ROAD
SUNNYVALE, CA 94086
      VP & Principal Accounting Offi  

Signatures

 Jamie Samath   10/24/2017
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) On October 6, 2017, the common stock and equity grants of Intuitive Surgical split 3-for-1, resulting in the reporting person's ownership of the company's stock and equity grants to increase (for every one share owned or granted, 2 additional shares were issued) and the exercise price of stock option grants to decrease to 1/3rd of the original grant price.
(2) These shares were sold pursuant to a Rule 10b5-1 Trading Plan, entered into on May 5, 2017.
(3) Non-statutory stock option granted pursuant to the 2010 Employee Stock Option Plan. The option vests 1/8th six months after the date of grant and 1/48th monthly thereafter.
(4) Non-statutory stock option granted pursuant to the 2010 Employee Stock Option Plan. Option shall vest 7/48 one month after the date of grant and 1/48th each month thereafter.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.