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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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) 04/24/2015 (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   G   1,252 A $ 0 (1) 242,496 D   Common Stock 04/27/2015   G   2,000 D $ 0 (2) 240,496 D   Common Stock 04/28/2015   G   50 D $ 0 (3) 240,446 D   Common Stock 04/28/2015   G   50 D $ 0 (4) 240,396 D   Common Stock 04/28/2015   G   65 D $ 0 (5) 240,331 D   Common Stock 04/28/2015   G   130 D $ 0 (6) 240,201 D   Common Stock 04/28/2015   G   135 D $ 0 (7) 240,066 D   Common Stock 04/28/2015   G   135 D $ 0 (8) 239,931 D   Common Stock 04/28/2015   G   185 D $ 0 (9) 239,746 D   Common Stock 04/28/2015   G   185 D $ 0 (10) 239,561 D   Common Stock 04/28/2015   G   240 D $ 0 (11) 239,321 D   Common Stock 04/28/2015   G   290 D $ 0 (12) 239,031 D   Common Stock 04/24/2015   G   1,252 D $ 0 (1) 100,779 I by Trust

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

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		05/04/2015
**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)	Shares were distributed by Lonnie M. Smith TDC GRAT UA 03/05/2013, The Trust Company of Oxford, Trustee, to Lonnie Smith & Cheryl Smith, Community Property.
(2)	These shares were gifted from the account of Lonnie Smith & Cheryl Smith, Community Property to The Church of Jesus Christ of Latter-Day Saints.
(3)	These shares were gifted from the account of Lonnie Smith & Cheryl Smith, Community Property to Rebecca S. Eggleston ACF Brooks D. Eggleston U/CO/UTMA.
(4)	These shares were gifted from the account of Lonnie Smith & Cheryl Smith, Community Property to Maryam Smith Keyser ACF Cade S. Keyser U/TX/UTMA.
(5)	These shares were gifted from the account of Lonnie Smith & Cheryl Smith, Community Property to Michael Smith ACF Weston Davis Smithl U/CA/UTMA.
(6)	These shares were gifted from the account of Lonnie Smith & Cheryl Smith, Community Property to Catherine Smith Howell ACF Elizabeth D Howell U/MN/UTMA.
(7)	These shares were gifted from the account of Lonnie Smith & Cheryl Smith, Community Property to Rebecca S Eggleston ACF Parker Keith Eggleston U/CO/UTMA.
(8)	These shares were gifted from the account of Lonnie Smith & Cheryl Smith, Community Property to Rebecca S Eggleston C/F Madeleine Eggleston UTMA/CO.
(9)	These shares were gifted from the account of Lonnie Smith & Cheryl Smith, Community Property to Kristen Smith Dayley C/F Matthew Stuart Dayley UTMA/WA.
(10)	These shares were gifted from the account of Lonnie Smith & Cheryl Smith, Community Property to Kristen Smith Dayley C/F Caroline Dayley UTMA/WA.
(11)	These shares were gifted from the account of Lonnie Smith & Cheryl Smith, Community Property to Michael Smith ACF Bria Kendell Smith U/CA/UTMA.
(12)	These shares were gifted from the account of Lonnie Smith & Cheryl Smith, Community Property to Catherine Smith Howell ACF Anna Howell U/MN/UTMA.

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