Intuitive Surgical executive sells 84 shares under plan

INTUITIVE SURGICAL INC executive Brosius Mark, EVP & Chief Mfg and Supply Cha, reported selling a total of 84 shares of Common Stock in three open-market transactions.

Rhea-AI Filing Summary

INTUITIVE SURGICAL INC executive Brosius Mark, EVP & Chief Mfg and Supply Cha, reported selling a total of 84 shares of Common Stock in three open-market transactions. He sold 28 shares on each of July 27, 28, and 29, 2026 at prices between $344.00 and $365.58 per share.

All reported sales were made pursuant to a pre-arranged Trading Plan that complies with SEC Rule 10b5-1, as noted in the footnote, and this plan is stated to expire on February 14, 2027.

Insider Trade Summary 10b5-1

Net Seller: 84 shares

Net Sell 3 txns

Insider Brosius Mark

Role EVP & Chief Mfg and Supply Cha

Sold 84 shs ($30K)

Type	Security	Shares	Price	Value
Sale	Common Stock F1	28	$360.21	$10K
Sale	Common Stock F1	28	$365.58	$10K
Sale	Common Stock F1	28	$344.00	$10K

Holdings After Transaction: Common Stock — 1,322 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

Total shares sold: 84 shares Shares sold per transaction: 28 shares Sale price on July 27, 2026: $344.00 per share +3 more

6 metrics

Total shares sold 84 shares Aggregate common stock sold across three open-market transactions

Shares sold per transaction 28 shares Common stock sold on each of July 27, 28, and 29, 2026

Sale price on July 27, 2026 $344.00 per share Open-market sale of 28 shares of common stock

Sale price on July 28, 2026 $365.58 per share Open-market sale of 28 shares of common stock

Sale price on July 29, 2026 $360.21 per share Open-market sale of 28 shares of common stock

10b5-1 plan expiry February 14, 2027 Expiration date of the Rule 10b5-1 Trading Plan governing the sales

Key Terms

Rule 10b5-1, Trading Plan, open market or private transaction

3 terms

Rule 10b5-1 regulatory

"Trading Plan that complies with SEC Rule 10b5-1 and expires on February 14, 2027"

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

"The transaction took place in accordance with a Trading Plan that complies with SEC Rule 10b5-1"

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.

open market or private transaction financial

"transaction code description: Sale in open market or private transaction"

FAQ

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

What insider stock sales did Intuitive Surgical (ISRG) executive Brosius Mark report?

Executive Brosius Mark, EVP & Chief Mfg and Supply Cha at Intuitive Surgical, reported three open-market sales of the company’s Common Stock. He sold 28 shares in each transaction, for a total of 84 shares over three consecutive trading days in July 2026.

How many ISRG shares did Brosius Mark sell in total according to this Form 4?

Across the reported transactions, Brosius Mark sold a total of 84 shares of Intuitive Surgical Common Stock. The Form 4 shows three separate sales, each for 28 shares, executed on July 27, July 28, and July 29, 2026 in open-market transactions.

On what dates did Brosius Mark’s ISRG stock sales occur?

The sales occurred on three consecutive days: July 27, 2026, July 28, 2026, and July 29, 2026. Each date corresponds to an open-market sale of 28 shares of Intuitive Surgical common stock reported in the Form 4 filing for ticker ISRG.

At what prices were the ISRG shares sold by Brosius Mark?

Brosius Mark’s reported sale prices were $344.00 per share on July 27, $365.58 per share on July 28, and $360.21 per share on July 29, 2026. Each price reflects an open-market or private transaction in Intuitive Surgical common stock.

Were Brosius Mark’s ISRG stock sales made under a Rule 10b5-1 trading plan?

Yes. A footnote states that each transaction took place in accordance with a Trading Plan that complies with SEC Rule 10b5-1. The plan is reported to expire on February 14, 2027, indicating these were pre-arranged trades for Intuitive Surgical shares.

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

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Available on EDGAR 07/29/2026 - 05:31 PM Accepted by SEC EDGAR 07/29/2026 - 05:31 PM 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)
07/27/2026

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	07/27/2026		S(1)		28	D	$344	1,378	D
Common Stock	07/28/2026		S(1)		28	D	$365.58	1,350	D
Common Stock	07/29/2026		S(1)		28	D	$360.21	1,322	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	07/29/2026
	** 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)