SIMPLEX TRADING, LLC

Position in ISRG — Intuitive Surgical Inc

CIK 1488542 CHICAGO, IL

Position in ISRG

as of Jun 30, 2026 · filed Aug 12, 2026 Compact

Position Value

$2,420,280

-$1,057,736 QoQ

Shares Held

6,086

-0.9% QoQ

Ownership

0.002%

of shares outstanding

% of Portfolio

0.08%

of 13F equity value

Holder Rank

#854

of 2,231 holders

Holding Since

Jun 2020

15 quarters on record

Voting authority Sole 100% Shared 0% None 0%

Healthcare · as of Jun 30, 2026

SIMPLEX TRADING, LLC holds $12,800,862 across 24 Medical Instruments & Supplies names. ISRG ranks #3 (18.9% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	ALGN	Align Technology Inc	16,354	$2,758,265
2	RMD	Resmed Inc	14,089	$2,745,664
3	ISRG	Intuitive Surgical Inc This page	6,086	$2,420,280
4	RGEN	Repligen Corp	9,820	$1,339,840
5	SOLV	Solventum Corp	12,762	$984,588
6	WRBY	Warby Parker Inc.	16,579	$503,006
7	ALC	Alcon Inc	7,266	$487,548
8	XRAY	DENTSPLY SIRONA Inc.	44,368	$470,744

15 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$2,420,280	6,086	-0.9%	Shares	Sole	2026-08-12
2025-12-31	$3,478,016	6,141	-49.0%	Shares	Sole	2026-02-11
2025-09-30	$5,389,568	12,051	+638.4%	Shares	Sole	2025-11-12
2024-03-31	$651,314	1,632	-95.1%	Shares	Sole	2024-04-25
2023-12-31	$11,330,235	33,585	+347.0%	Shares	Sole	2024-02-02
2022-12-31	$1,993,574	7,513	-82.2%	Shares	Sole	2023-02-02
2022-09-30	$7,919,902	42,253	+247.7%	Shares	Sole	2022-11-04
2022-03-31	$3,666,317	12,153	-58.1%	Shares	Sole	2022-05-02
2021-12-31	$10,418,262	28,996	-8.9%	Shares	Sole	2022-02-23
2021-09-30	$31,657,709	31,844	+9.0%	Shares	Sole	2021-10-28
2021-06-30	$26,870,964	29,219	+258.4%	Shares	Sole	2021-08-12
2021-03-31	$6,023,838	8,152	+155.4%	Shares	Sole	2021-04-26
2020-12-31	$2,611,375	3,192	+1004.5%	Shares	Sole	2021-02-02
2020-09-30	$205,057	289	+124.0%	Shares	Sole	2020-10-14
2020-06-30	$73,508	129	—	Shares	Sole	2020-07-13
No filing history on record for this holder in this stock.