Intuitive Surgical's Loeb receives 2,612 shares

Q: How many ISRG shares were withheld for Gary Loeb’s RSU taxes?

1,296 shares were withheld from Gary Loeb’s vesting shares to cover tax withholding obligations, at a reported price of $423.96 per share. The net shares were deposited into the holder’s account.

Q: How do Gary Loeb’s Intuitive Surgical RSUs vest?

The RSUs vest 25% per year over a four-year period, beginning on the first anniversary of the grant date, and convert into common stock on the vest date on a one-for-one basis.

An executive vice president’s RSU vesting included 1,296 shares withheld for tax obligations, with net shares deposited into the holder’s account.

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Rhea-AI Filing Summary

Intuitive Surgical (ISRG) executive vice president Gary Loeb reported conversion of 2,612 restricted stock units into 2,612 common shares on October 10, 2026. 1,296 shares were withheld to cover tax withholding obligations at $423.96 per share, and the net shares were deposited into the holder’s account. The RSUs vest 25% per year over four years, beginning on the grant’s first anniversary; no Rule 10b5-1 plan is reported.

Insider Trade Summary

2,612 shares exercised/converted

Exercise 3 txns

Insider LOEB GARY

Role EVP & Chief Legal and Complian

Type	Security	Shares	Price	Value
Exercise	Restricted Stock Units ^F2	2,612	$0.00	$0.00
Exercise	Common Stock ^F1	2,612	$0.00	$0.00
Tax Withholding	Common Stock ^F1	1,296	$423.96	$549K

Holdings After Transaction: Restricted Stock Units — 0 contracts (Direct); Common Stock — 6,636 shares (Direct)

Footnotes (2)

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 tax withholding obligations. The net shares were deposited into the holders account.
F2. 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.

Key Figures

Restricted stock units converted: 2,612 RSUs Common shares acquired: 2,612 shares Shares withheld for tax obligations: 1,296 shares +3 more

6 metrics

Restricted stock units converted 2,612 RSUs October 10, 2026

Common shares acquired 2,612 shares Upon conversion of RSUs on October 10, 2026

Shares withheld for tax obligations 1,296 shares October 10, 2026

Reported price per share withheld $423.96 per share Tax-withholding disposition

Annual RSU vesting 25% Vests per year beginning on the grant’s first anniversary

RSU vesting period Four years Annual vesting schedule

Key Terms

Restricted Stock Units, vest date, tax withholding obligations, one-for-one basis

4 terms

Restricted Stock Units financial

"Restricted Stock Units"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

vest date financial

"convert into common stock on the vest date on a one-for-one basis"

tax withholding obligations financial

"a portion of the shares were held back to cover the tax withholding obligations"

one-for-one basis financial

"convert into common stock on the vest date on a one-for-one basis"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many ISRG shares did Gary Loeb receive from RSUs?

On October 10, 2026, Gary Loeb’s 2,612 restricted stock units converted into 2,612 shares of Intuitive Surgical common stock on a one-for-one basis.

How many ISRG shares were withheld for Gary Loeb’s RSU taxes?

1,296 shares were withheld from Gary Loeb’s vesting shares to cover tax withholding obligations, at a reported price of $423.96 per share. The net shares were deposited into the holder’s account.

How do Gary Loeb’s Intuitive Surgical RSUs vest?

The RSUs vest 25% per year over a four-year period, beginning on the first anniversary of the grant date, and convert into common stock on the vest date on a one-for-one basis.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/13/2026 - 12:45 PM EDT Accepted by SEC EDGAR 10/13/2026 - 12:44 PM EDT

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).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

LOEB GARY

(Last)

(First)

(Middle)

1020 KIFER ROAD

(Street)

SUNNYVALE

CALIFORNIA

94086

(City)

(State)

(Zip)

UNITED STATES

(Country)

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)
	EVP & Chief Legal and Complian

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/10/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	10/10/2026		M⁽¹⁾		2,612	A	$0.0	7,932	D
Common Stock	10/10/2026		F⁽¹⁾		1,296	D	$423.96	6,636	D

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	$0.0	10/10/2026		M			2,612	⁽²⁾	10/10/2026	Common Stock	2,612	$0.0	0	D

Explanation of Responses:

1. 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 tax withholding obligations. The net shares were deposited into the holders account.

2. 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.

	By: Stephanie Lim-Ignacio For: Loeb, Gary Howard	10/13/2026
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)

Source: View Original Filing on SEC EDGAR