Intuitive Surgical EVP Brosius makes 3 stock sales

The three sales were made under a Rule 10b5-1-compliant Trading Plan that expires February 14, 2027.

Rhea-AI Filing Summary

Intuitive Surgical (ISRG) EVP Mark Brosius reported selling 61 shares of Common Stock on each of October 26, October 27 and October 28, 2026. The reported prices were $451.75, $451.63 and $441.60 per share, respectively. Each sale took place under a Trading Plan that complies with SEC Rule 10b5-1 and expires February 14, 2027.

Insider Trade Summary 10b5-1

Net Seller: 183 shares

Net Sell 3 txns

Insider Brosius Mark

Role EVP & Chief Mfg and Supply Cha

Sold 183 shs ($82K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	61	$441.60	$27K
Sale	Common Stock F1	61	$451.63	$28K
Sale	Common Stock F1	61	$451.75	$28K

Holdings After Transaction: Common Stock — 581 shares (Direct)

Footnotes (1)

1. F1. The transaction took place in accordance with a Trading Plan that complies with SEC Rule 10b5-1 and expires on February 14, 2027.

Key Figures

Shares sold: 61 shares Sale price: $451.75 per share Shares sold: 61 shares +3 more

6 metrics

Shares sold 61 shares October 26, 2026

Sale price $451.75 per share October 26, 2026

Shares sold 61 shares October 27, 2026

Sale price $451.63 per share October 27, 2026

Shares sold 61 shares October 28, 2026

Sale price $441.60 per share October 28, 2026

Key Terms

Rule 10b5-1, Trading Plan, non-derivative

3 terms

Rule 10b5-1 regulatory

"Trading Plan that complies with SEC Rule 10b5-1"

Rule 10b5-1 is a regulation that allows company insiders to buy or sell their shares at predetermined times, even if they have access to non-public information. It acts like setting a schedule in advance for transactions, helping prevent accusations of unfair trading. This rule provides a way for insiders to plan trades transparently, giving investors confidence that these transactions are not based on hidden information.

Trading Plan regulatory

"took place in accordance with a Trading Plan"

A trading plan is a written set of rules an investor follows about what to buy or sell, when to enter and exit positions, and how much risk to accept—like a travel itinerary that maps the route, stops, and budget before a trip. It matters because it helps remove emotional decisions during market swings, enforces discipline, and makes performance easier to review and improve, reducing the chance of costly impulsive moves.

non-derivative financial

"Common Stock; non-derivative"

FAQ

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

How many ISRG shares did Mark Brosius sell, and at what prices?

Mark Brosius sold 61 shares on each of October 26, October 27 and October 28, 2026, at $451.75, $451.63 and $441.60 per share, respectively. The sales took place under a Trading Plan that complies with SEC Rule 10b5-1 and expires February 14, 2027.

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

Form 4 Insider Transactions: What Each Field Means →

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Available on EDGAR 10/28/2026 - 06:01 PM EDT Accepted by SEC EDGAR 10/28/2026 - 06:01 PM EDT Learn about SEC filing dates

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).

X

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^*

Brosius Mark

(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 Mfg and Supply Cha

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/26/2026

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)
			Code	V	Amount	(A) or (D)	Price
Common Stock	10/26/2026		S(1)		61	D	$451.75	703	D
Common Stock	10/27/2026		S(1)		61	D	$451.63	642	D
Common Stock	10/28/2026		S(1)		61	D	$441.6	581	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)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The transaction took place in accordance with a Trading Plan that complies with SEC Rule 10b5-1 and expires on February 14, 2027.

	By: Stephanie Lim-Ignacio For: Brosius, Mark	10/28/2026
	** 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)