Gary S. Guthart

CIK: 0001280628

Transaction Breakdown

Open Market Buys (P)0 (0.0%)

High conviction signal

Open Market Sales (S)16 (32.7%)

Position reduction

Option Exercises (M)15 (30.6%)

Derivative conversions

Awards (A)7 (14.3%)

Compensation grants

Other (G, F, J, C, D, …)11 (22.4%)

Gifts, tax withholding, conversions, dispositions to the issuer and other codes

Companies & Roles (2)

ISRG

INTUITIVE SURGICAL INC

Director

ILMN

ILLUMINA, INC.

Director

Discretionary Trading P&L

Holdings

Transaction History (49 total)

ISRG
INTUITIVE SURGICAL INC
Oct 23, 2026
Sale(S)
Indirect
20.1K shares at avg. $451.61$9.1M
ISRG
INTUITIVE SURGICAL INC
Aug 11, 2026
Sale(S)
Indirect
10K shares at avg. $400.00$4.0M
ISRG
INTUITIVE SURGICAL INC
Apr 30, 2026
Award(A)
Restricted Stock Units - 4-30-2026
Direct
554 shares-
ISRG
INTUITIVE SURGICAL INC
Feb 28, 2026
Exercise(M)
Direct
26.3K shares-
ISRG
INTUITIVE SURGICAL INC
Feb 28, 2026
Tax Payment(F)
Direct
13.1K shares at avg. $503.51$6.6M
ISRG
INTUITIVE SURGICAL INC
Feb 28, 2026
Tax Payment(F)
Direct
1.2K shares at avg. $503.51$626K
ISRG
INTUITIVE SURGICAL INC
Feb 28, 2026
Exercise(M)
Direct
2.5K shares-
ISRG
INTUITIVE SURGICAL INC
Feb 26, 2026
Exercise(M)
Direct
5K shares-
ISRG
INTUITIVE SURGICAL INC
Feb 26, 2026
Award(A)
Performance Stock Units - 2-28-2023
Direct
8.8K shares-
ISRG
INTUITIVE SURGICAL INC
Feb 26, 2026
Exercise(M)
Direct
3.4K shares-
ISRG
INTUITIVE SURGICAL INC
Feb 26, 2026
Tax Payment(F)
Direct
2.5K shares at avg. $506.17$1.2M
ISRG
INTUITIVE SURGICAL INC
Feb 26, 2026
Tax Payment(F)
Direct
1.7K shares at avg. $506.17$862K
ISRG
INTUITIVE SURGICAL INC
Feb 10, 2026
Tax Payment(F)
Direct
1.3K shares at avg. $492.84$644K
ISRG
INTUITIVE SURGICAL INC
Feb 10, 2026
Exercise(M)
Direct
2.6K shares-
ISRG
INTUITIVE SURGICAL INC
Jan 28, 2026
Award(A)
Performance Stock Units - 2-28-2023
Direct
17.6K shares-
ISRG
INTUITIVE SURGICAL INC
Jan 28, 2026
Award(A)
Performance Stock Units - 2-26-2024
Direct
8.3K shares-
ISRG
INTUITIVE SURGICAL INC
Jan 27, 2026
Exercise(M)
Direct
25.5K shares at avg. $174.26$4.4M
ISRG
INTUITIVE SURGICAL INC
Jan 27, 2026
Sale(S)
Indirect
1.4K shares at avg. $531.53$744K
ISRG
INTUITIVE SURGICAL INC
Jan 27, 2026
Sale(S)
Indirect
1.4K shares at avg. $531.52$744K
ISRG
INTUITIVE SURGICAL INC
Jan 27, 2026
Sale(S)
Direct
24.5K shares at avg. $530.10$13.0M
ISRG
INTUITIVE SURGICAL INC
Dec 1, 2025
Sale(S)
Direct
22.8K shares at avg. $570.89$13.0M
ISRG
INTUITIVE SURGICAL INC
Dec 1, 2025
Exercise(M)
Direct
25.5K shares at avg. $139.52$3.6M
ISRG
INTUITIVE SURGICAL INC
Oct 24, 2025
Sale(S)
Indirect
1.4K shares at avg. $546.18$765K
ISRG
INTUITIVE SURGICAL INC
Oct 24, 2025
Sale(S)
Direct
28.8K shares at avg. $547.56$15.8M
ISRG
INTUITIVE SURGICAL INC
Oct 24, 2025
Sale(S)
Indirect
1.4K shares at avg. $546.35$765K

		Type	Shares	Price		Ownership
Oct 23, 2026	ISRG INTUITIVE SURGICAL INC	Sale(S)	20,095	$451.61	$9,075,137	Indirect
Aug 11, 2026	ISRG INTUITIVE SURGICAL INC	Sale(S)	10,000	$400.00	$4,000,000	Indirect
Apr 30, 2026	ISRG INTUITIVE SURGICAL INC	Award(A) Restricted Stock Units - 4-30-2026	554	-	-	Direct
Feb 28, 2026	ISRG INTUITIVE SURGICAL INC	Exercise(M)	26,334	-	$0	Direct
Feb 28, 2026	ISRG INTUITIVE SURGICAL INC	Tax Payment(F)	13,059	$503.51	$6,575,337	Direct
Feb 28, 2026	ISRG INTUITIVE SURGICAL INC	Tax Payment(F)	1,243	$503.51	$625,863	Direct
Feb 28, 2026	ISRG INTUITIVE SURGICAL INC	Exercise(M)	2,506	-	$0	Direct
Feb 26, 2026	ISRG INTUITIVE SURGICAL INC	Exercise(M)	4,960	-	$0	Direct
Feb 26, 2026	ISRG INTUITIVE SURGICAL INC	Award(A) Performance Stock Units - 2-28-2023	8,778	-	-	Direct
Feb 26, 2026	ISRG INTUITIVE SURGICAL INC	Exercise(M)	3,433	-	$0	Direct
Feb 26, 2026	ISRG INTUITIVE SURGICAL INC	Tax Payment(F)	2,460	$506.17	$1,245,178	Direct
Feb 26, 2026	ISRG INTUITIVE SURGICAL INC	Tax Payment(F)	1,703	$506.17	$862,008	Direct
Feb 10, 2026	ISRG INTUITIVE SURGICAL INC	Tax Payment(F)	1,306	$492.84	$643,649	Direct
Feb 10, 2026	ISRG INTUITIVE SURGICAL INC	Exercise(M)	2,633	-	$0	Direct
Jan 28, 2026	ISRG INTUITIVE SURGICAL INC	Award(A) Performance Stock Units - 2-28-2023	17,556	-	-	Direct
Jan 28, 2026	ISRG INTUITIVE SURGICAL INC	Award(A) Performance Stock Units - 2-26-2024	8,267	-	-	Direct
Jan 27, 2026	ISRG INTUITIVE SURGICAL INC	Exercise(M)	25,500	$174.26	$4,443,546	Direct
Jan 27, 2026	ISRG INTUITIVE SURGICAL INC	Sale(S)	1,400	$531.53	$744,140	Indirect
Jan 27, 2026	ISRG INTUITIVE SURGICAL INC	Sale(S)	1,400	$531.52	$744,129	Indirect
Jan 27, 2026	ISRG INTUITIVE SURGICAL INC	Sale(S)	24,500	$530.10	$12,987,403	Direct
Dec 1, 2025	ISRG INTUITIVE SURGICAL INC	Sale(S)	22,806	$570.89	$13,019,722	Direct
Dec 1, 2025	ISRG INTUITIVE SURGICAL INC	Exercise(M)	25,500	$139.52	$3,557,760	Direct
Oct 24, 2025	ISRG INTUITIVE SURGICAL INC	Sale(S)	1,400	$546.18	$764,658	Indirect
Oct 24, 2025	ISRG INTUITIVE SURGICAL INC	Sale(S)	28,800	$547.56	$15,769,644	Direct
Oct 24, 2025	ISRG INTUITIVE SURGICAL INC	Sale(S)	1,400	$546.35	$764,890	Indirect

1-25 of 49 transactions

About GUTHART GARY S

GUTHART GARY S (SEC CIK 0001280628) files insider reports with the SEC as Director of INTUITIVE SURGICAL INC (ISRG) and Director of ILLUMINA, INC. (ILMN).

Signal8 holds 17 ownership filings by GUTHART GARY S, all Form 4s, filed between Oct 31, 2024 and Oct 26, 2026. Those filings report 49 transactions, from Oct 30, 2024 to Oct 23, 2026. Signal8's Form 4 history starts in Sep 2024.

The business address on GUTHART GARY S's filings is in SUNNYVALE, CA.

Recent filings by GUTHART GARY S

Oct 23, 2026: Open-market sale of ISRG shares (Form 4, code S).
Aug 11, 2026: Open-market sale of ISRG shares (Form 4, code S).
Apr 30, 2026: Grant or award of ISRG derivative securities (Form 4, code A).
Feb 28, 2026: Option exercise of ISRG shares (Form 4, code M).
Feb 28, 2026: Tax withholdings of ISRG shares (2 lines, Form 4, code F).

Other insiders filing for INTUITIVE SURGICAL INC (ISRG)

Brosius Mark, EVP & Chief Mfg and Supply Cha
Widman Fredrik, VP Corporate Controller
BARRATT CRAIG H, Director
WADORS PATRICIA L, SVP Chief Human Resources Offi
LOEB GARY, EVP & Chief Legal and Complian
Ladd Amy L, Director

How to read Form 4 transaction codes