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 *
SMITH LONNIE M
   2. Issuer Name and Ticker or Trading Symbol
INTUITIVE SURGICAL INC [ISRG] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
1020 KIFER ROAD		 3. Date of Earliest Transaction (Month/Day/Year)
04/23/2015
(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 04/24/2015   M   20,000 A $ 303.27 260,744 D  
Common Stock 04/24/2015   S   20,000 (1) D $ 508.0302 (2) 240,744 D  
Common Stock 04/24/2015   M   500 A $ 0 (3) 241,244 D  
Common Stock               102,031 I by Trust

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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 04/24/2015   M     20,000   (4) 02/15/2018 Common Stock 20,000 $ 0 7,328 D  
Non-Qualified Stock Option (right to buy) $ 512.77 04/23/2015   A   1,050     (5) 04/23/2025 Common Stock 1,050 $ 0 1,050 D  
Restricted Stock Units $ 0 04/24/2015   M     500   (6) 04/25/2018 Common Stock 500 $ 0 0 D  
Restricted Stock Units $ 0 04/23/2015   A   650     (6) 04/23/2019 Common Stock 650 $ 0 650 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
SMITH LONNIE M
1020 KIFER ROAD
SUNNYVALE, CA 94086		   X      

Signatures

 Lonnie M Smith   04/24/2015
**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 November 25, 2014.
(2) The average selling price for the transactions was $508.030228. The shares sold at: $05.00 - $505.99 = 3,434 shares; $506.00 to $506.99 = 4,100 shares; $507.00 - $507.99 = 1,942 shares; $508.00 - $508.99 = 4,944 shares; $509.00 - $509.99 = 2,506 shares; $510.00 - $510.99 = 1,654 shares; $511.00 - $511.99 = 460 shares; $512.00 = $512.99 = 800 shares; $514.00 - $514.99 = 160 shares.
(3) On 4/24/14, RSU shares were granted, vesting 100% one year from date of grant. RSUs convert into common stock on the vest date on a one-for-one basis. On 4/24/15, 100% of the shares were released and deposited into the holders account.
(4) 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.
(5) Non-statutory stock option granted pursuant to the Non-Employee Directors' Stock Option Plan. Option shall vest 100% one year after the date of grant date.
(6) Restricted Stock Units (RSUs) are granted pursuant to the 2010 Incentive Award Plan. The RSUs fully vest on the first anniversary of the date of grant.

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