FMR LLC

Position in MASI — Masimo Corp

CIK 315066 BOSTON, MA

Back to MASI Full portfolio

Position in MASI

as of Mar 31, 2026 · filed May 15, 2026 Compact

Position Value

$258,057,884

-$764,755,283 QoQ

Shares Held

1,450,823

-81.6% QoQ

Ownership

2.77%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

of 445 holders

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 85.76249480467293.ToString("F0")% Shared 0.ToString("F0")% None 14.237505195327065.ToString("F0")%

Common Shares in MASI Over Time

Shares Held

Position Value (USD)

Position in Medical Devices

Healthcare · as of Mar 31, 2026

FMR LLC holds $11,961,009,779 across 93 Medical Devices names. MASI ranks #8 (2.2% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BSX	Boston Scientific Corp	74,226,395	$4,657,706,283
2	EW	Edwards Lifesciences Corp	14,503,770	$1,161,461,899
3	ABT	Abbott Laboratories	10,845,315	$1,113,488,485
4	PODD	Insulet Corp	3,974,712	$834,053,563
5	SYK	Stryker Corp	2,364,394	$776,916,221
6	BRKR	Bruker Corp	16,101,803	$581,597,122
7	TMDX	TransMedics Group, Inc.	5,096,243	$506,617,513
8	MASI	Masimo Corp This page	1,450,823	$258,057,884

All Filings in MASI

Export CSV

25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$258,057,884	1,450,823	-81.6%	Shares	Defined	2026-05-15
2025-12-31	$1,022,813,167	7,864,164	-4.3%	Shares	Defined	2026-02-17
2025-09-30	$1,211,934,531	8,213,721	+0.4%	Shares	Defined	2025-11-13
2025-06-30	$1,376,270,394	8,181,372	+0.0%	Shares	Defined	2025-08-14
2025-03-31	$1,362,581,914	8,178,763	+1.0%	Shares	Defined	2025-05-12
2024-12-31	$1,338,509,143	8,097,454	+19.8%	Shares	Defined	2025-02-13
2024-09-30	$900,859,876	6,756,618	+41.2%	Shares	Defined	2024-11-13
2024-06-30	$602,715,463	4,785,735	-31.4%	Shares	Defined	2024-08-13
2024-03-31	$1,024,613,713	6,977,281	+0.7%	Shares	Defined	2024-05-13
2023-12-31	$811,980,712	6,927,572	+32.0%	Shares	Defined	2024-02-13
2023-09-30	$460,106,322	5,247,563	-26.7%	Shares	Defined	2023-11-13
2023-06-30	$1,177,729,928	7,157,277	+17.6%	Shares	Defined	2023-08-11
2023-03-31	$1,122,917,777	6,084,956	+11.5%	Shares	Defined	2023-08-11
2022-12-31	$807,266,093	5,456,344	+41.5%	Shares	Defined	2023-02-13
2022-09-30	$544,495,054	3,857,290	+83.2%	Shares	Defined	2022-11-10
2022-06-30	$275,052,378	2,104,939	+1.7%	Shares	Defined	2022-08-12
2022-03-31	$301,195,173	2,069,501	+0.7%	Shares	Defined	2022-05-13
2021-12-31	$601,633,035	2,054,898	-1.1%	Shares	Defined	2022-02-14
2021-09-30	$562,532,670	2,077,990	-0.2%	Shares	Defined	2022-02-14
2021-06-30	$504,729,013	2,081,786	-13.7%	Shares	Defined	2021-08-13
2021-03-31	$553,952,320	2,412,054	-37.0%	Shares	Defined	2021-05-14
2020-12-31	$1,027,350,854	3,827,971	-13.9%	Shares	Defined	2021-02-08
2020-09-30	$1,049,604,434	4,446,346	-13.0%	Shares	Defined	2020-11-13
2020-06-30	$1,165,500,608	5,112,069	-15.4%	Shares	Defined	2020-08-24
2020-03-31	$1,069,727,928	6,039,566	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.