Does Marshall Wace own ISRG stock?

Yes. As of its Q2 2026 13F, Marshall Wace holds 110,089 shares of ISRG (Intuitive Surgical), worth $43.8M.

How many shares of ISRG does Marshall Wace own?

As of its Q2 2026 13F, Marshall Wace holds 110,089 shares of ISRG (Intuitive Surgical).

As of its Q2 2026 13F, Marshall Wace's ISRG position is worth $43.8M.

In Q2 2026, Marshall Wace reduced its ISRG position by 209,908 shares (-65.6%).

Marshall Wace already held ISRG in its Q4 2018 13F, the earliest on record, and has listed it in 29 quarterly 13F filings.

Position history for MWMARSHALL WACE, LLP's holdings in Intuitive Surgical Inc

Current Value

$43.8M

Current Shares

110,089

Total Value Change

+$26.9M

Total Shares Change

+74,777

Quarter-by-Quarter History

Quarter	Action	Shares	Change	Value	Weight	Price	Conviction
2026-Q2 Latest	Decreased	110,089	-65.6%	$43.8M	0.0%	$397.68	0
2026-Q1	Increased	319,997	+14.5%	$147.5M	0.1%	$460.99	41
2025-Q4	Decreased	279,530	-29.4%	$158.3M	0.1%	$566.36	0
2025-Q3	Increased	395,774	+171.2%	$177M	0.2%	$447.23	59
2025-Q2	Increased	145,934	+78.0%	$79.3M	0.1%	$543.41	45
2025-Q1	Decreased	82,004	-56.9%	$40.6M	0.1%	$495.27	0
2024-Q4	Decreased	190,169	-56.0%	$99.3M	0.1%	$521.96	0
2024-Q3	Increased	432,731	+485.4%	$212.6M	0.3%	$491.27	59
2024-Q2	Decreased	73,927	-88.7%	$32.9M	0.0%	$444.85	0
2024-Q1	Decreased	654,140	-41.3%	$261.1M	0.4%	$399.09	0
2023-Q4	Increased	1.1M	+42.0%	$376M	0.6%	$337.36	59
2023-Q3	Decreased	785,073	-44.6%	$229.5M	0.5%	$292.29	0
2023-Q2	Increased	1.4M	+38.3%	$484.3M	0.9%	$341.94	58
2023-Q1	Increased	1M	+347.9%	$261.7M	0.6%	$255.47	70
2022-Q4	Increased	228,744	+321.0%	$60.7M	0.1%	$265.35	57
2022-Q3	Decreased	54,333	-84.7%	$10.2M	0.0%	$187.44	0
2022-Q2	Increased	356,093	+934.5%	$71.5M	0.1%	$200.71	57
2022-Q1	Decreased	34,420	-95.5%	$10.4M	0.0%	$301.68	0
2021-Q4	Increased	774,195	+7172.9%	$278.2M	0.5%	$359.30	70
2021-Q3	Decreased	10,645	-35.0%	$10.6M	0.0%	$331.38	0
2021-Q2	Increased	16,372	+1.1%	$15.1M	0.1%	$306.55	28
2021-Q1	Increased	16,188	+335.5%	$12M	0.1%	$246.31	45
2020-Q4	Increased	3,717	+357.2%	$3M	0.0%	$272.70	43
2020-Q3	Decreased	813	-86.8%	$577,000	0.0%	$236.51	0
2020-Q2	New	6,148	-	$3.5M	0.0%	$189.94	37
2019-Q4	Exited	0	-100.0%	$0	0.0%	$197.05	0
2019-Q3	Decreased	9,125	-9.7%	$4.9M	0.0%	$179.98	0
2019-Q2	Decreased	10,103	-62.7%	$5.3M	0.0%	$174.85	0
2019-Q1	Decreased	27,089	-23.3%	$15.5M	0.1%	$190.19	0
2018-Q4	First report	35,312	-	$16.9M	0.2%	$159.64	0