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
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(Print or Type Responses)
1. Name and Address of Reporting Person *
MELTZER MARK J
   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)
SVP General Counsel & CCO
(Last)
(First)
(Middle)
1020 KIFER ROAD		 3. Date of Earliest Transaction (Month/Day/Year)
04/27/2016
(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 04/27/2016   M   12,500 A $ 303.27 14,081 D  
Common Stock 04/27/2016   S   12,500 (1) D $ 631.7586 (2) 1,581 D  
Common Stock 04/27/2016   M   2,500 A $ 309.46 4,081 D  
Common Stock 04/27/2016   S   2,500 (1) D $ 630.5003 (3) 1,581 D  
Common Stock 04/27/2016   M   1,625 A $ 309.46 3,206 D  
Common Stock 04/27/2016   S   1,625 (1) D $ 631.2289 (4) 1,581 D  

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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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) $ 303.27 04/27/2016   M     12,500   (5) 02/15/2018 Common Stock 12,500 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 309.46 04/27/2016   M     2,500   (5) 11/07/2017 Common Stock 2,500 $ 0 1,625 D  
Non-Qualified Stock Option (right to buy) $ 309.46 04/27/2016   M     1,625   (5) 11/07/2017 Common Stock 1,625 $ 0 0 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
MELTZER MARK J
1020 KIFER ROAD
SUNNYVALE, CA 94086		       SVP General Counsel & CCO  

Signatures

 Mark J Meltzer   04/28/2016
**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) These shares were sold pursuant to a Rule 10b5-1 Trading Plan, entered into on June 10, 2015.
(2) The average selling price for the transactions was $631.758585 The shares sold at: $627.00 - $627.99 - 867 shares; $628.00 - $628.99 - 633 shares; $629.00 - $629.99 - 196 shares; $630.00 to $630.99 = 3,657 shares; $631.00 - $631.99 - 317 shares; $632.00 - $632.99 - 1,930 shares; $633.00 to $633.99 = 3,500 shares; $634.00 to $634.99 = 1,400 shares
(3) The average selling price for the transactions was $630.50026 The shares sold at: $628.00 - $628.99 - 600 shares; $629.00 - $629.99 - 700 shares; $630.00 to $630.99 = 200 shares; $631.00 - $631.99 - 699 shares; $635.00 to $635.99 = 301 shares
(4) The average selling price for the transactions was $631.22888 The shares sold at: $628.00 - $628.99 - 400 shares; $629.00 - $629.99 - 475 shares; $630.00 to $630.99 = 120 shares; $631.00 - $631.99 - 190 shares; $635.00 to $635.99 = 440 shares
(5) Non-statutory stock option granted pursuant to the 2000 Employee Stock Option Plan. Option shall vest 1/8 six months after the date of grant and 1/48th each month thereafter.

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