Mark Brosius - 28 Feb 2026 Form 4 Insider Report for INTUITIVE SURGICAL INC (ISRG)

Role: SVP & Chief Mfg and Supply Cha
Signature: By: Stephanie Lim-Ignacio For: Brosius, Mark
Issuer symbol: ISRG
Transactions as of: 28 Feb 2026
Net transactions value: -$2,311,111
Form type: 4
Filing time: 02 Mar 2026, 16:48:04 UTC
Previous filing: 27 Feb 2026
Next filing: 05 Mar 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Brosius Mark	SVP & Chief Mfg and Supply Cha	1020 KIFER ROAD, SUNNYVALE	By: Stephanie Lim-Ignacio For: Brosius, Mark	02 Mar 2026	0002010300

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ISRG	Common Stock	Options Exercise	$0	+877	+46%	$0.000000	2,776	28 Feb 2026	Direct	F1
transaction	ISRG	Common Stock	Tax liability	$219,027	-435	-16%	$503.51	2,341	28 Feb 2026	Direct	F1
transaction	ISRG	Common Stock	Options Exercise	$0	+8,378	+358%	$0.000000	10,719	28 Feb 2026	Direct	F2
transaction	ISRG	Common Stock	Tax liability	$2,092,084	-4,155	-39%	$503.51	6,564	28 Feb 2026	Direct	F3

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ISRG	Performance Stock Units - 2-28-2023	Options Exercise	$0	-8,378	-100%	$0.000000	0	28 Feb 2026	Common Stock	8,378	$0.000000	Direct	F2
transaction	ISRG	Restricted Stock Units - 2-28-2022	Options Exercise	$0	-877	-100%	$0.000000	0	28 Feb 2026	Common Stock	877	$0.000000	Direct	F4

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	RSUs vest 25% per year over a four year period, commencing on the first anniversary of the grant date. RSUs convert into common stock on the vest date on a one-for-one basis. 25% of the shares have been released and a portion of the shares were held back to cover the statutory tax withholding requirements. The net shares were deposited into the holders account.
F2	Represents performance stock units ("PSUs") initially granted to the Reporting Person on February 28, 2023 subject to achievement of certain performance metrics. The performance criteria for the PSUs reported herein have been achieved, as determined by the Compensation Committee of the Issuer. The PSUs reported herein vest on February 28, 2026, the third anniversary of the grant date, subject to Reporting Person's continuous service to the Issuer through each such vesting date.
F3	This transaction represents the withholding of shares to cover taxes applicable to a settlement of PSUs reported on this Form 4.
F4	Each RSU granted represents a contingent right to receive one share of Intuitive Surgical common stock. The grant vests 25% on the first anniversary of the date of grant and annually thereafter, over a four year period.