SEC Form 4

FORM 4		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 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* BARRATT CRAIG H (Last) (First) (Middle) 1020 KIFER ROAD (Street) SUNNYVALE CA 94086 (City) (State) (Zip)	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) X Other (specify below) Board of Director
	3. Date of Earliest Transaction (Month/Day/Year) 04/21/2016
	4. If Amendment, Date of Original Filed (Month/Day/Year) 04/22/2016	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

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	04/21/2016(1)		M		460	A	$0.0	1,814	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 (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 Securities Underlying Derivative Security (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: 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)	$641.91	04/21/2016		A		327		(2)	04/21/2026	Common Stock	327	$0.0	327	D
Restricted Stock Units	$0.0	04/21/2016		M			460	(3)	04/23/2019	Common Stock	460	$0.0	0	D
Restricted Stock Units	$0.0	04/21/2016		A		327		(3)	04/21/2020	Common Stock	327	$0.0	327	D

Explanation of Responses:

1. As approved by the Issuers Board of Directors on January 28, 2016, these RSUs vested on April 21, 2016, the date of the Issuer?s annual stockholders meeting, which fell two days earlier than the first anniversary of the date of grant.

2. Options will vest 100% on the earlier of the first anniversary of the date of grant or the date of the next annual stockholders meeting.

3. The RSUs fully vest on the earlier of the first anniversary of the date of grant or the date of the next annual stockholders meeting.

	By: Lori Serrano For: Craig H Barratt	04/25/2016
	** Signature of Reporting Person	Date
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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