FMR LLC

Position in IRTC — iRhythm Holdings, Inc.

CIK 315066 BOSTON, MA

Back to IRTC Full portfolio

Position in IRTC

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

Position Value

$160,733,679

+$49,165,442 QoQ

Shares Held

1,361,919

+116.6% QoQ

Ownership

4.14%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

25 quarters on record

Voting authority Sole 99.75857595055213.ToString("F0")% Shared 0.ToString("F0")% None 0.24142404944787463.ToString("F0")%

Common Shares in IRTC 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. IRTC ranks #14 (1.3% 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	1,450,823	$258,057,884

All Filings in IRTC

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25 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$160,733,679	1,361,919	+116.6%	Shares	Defined	2026-05-15
2025-12-31	$111,568,237	628,766	+0.7%	Shares	Defined	2026-02-17
2025-09-30	$107,338,098	624,095	+48.5%	Shares	Defined	2025-11-13
2025-06-30	$64,694,143	420,201	-9.3%	Shares	Defined	2025-08-14
2025-03-31	$48,490,182	463,223	-2.6%	Shares	Defined	2025-05-12
2024-12-31	$42,867,267	475,405	+22.5%	Shares	Defined	2025-02-13
2024-09-30	$28,810,612	388,074	+7.0%	Shares	Defined	2024-11-13
2024-06-30	$39,039,842	362,689	+16.4%	Shares	Defined	2024-08-13
2024-03-31	$36,146,180	311,605	+165.5%	Shares	Defined	2024-05-13
2023-12-31	$12,565,103	117,387	-86.2%	Shares	Defined	2024-02-13
2023-09-30	$80,295,097	851,847	-47.3%	Shares	Defined	2023-11-13
2023-06-30	$168,545,337	1,615,657	-28.3%	Shares	Defined	2023-08-11
2023-03-31	$279,402,131	2,252,698	+40606.5%	Shares	Defined	2023-08-11
2022-12-31	$518,368	5,534	-60.7%	Shares	Defined	2023-02-13
2022-09-30	$1,764,191	14,082	-27.3%	Shares	Defined	2022-11-10
2022-06-30	$2,091,892	19,364	+248.1%	Shares	Defined	2022-08-12
2022-03-31	$876,004	5,563	+23.6%	Shares	Defined	2022-05-13
2021-12-31	$529,604	4,500	-2.7%	Shares	Defined	2022-02-14
2021-09-30	$270,722	4,623	-18.4%	Shares	Defined	2022-02-14
2021-06-30	$376,005	5,667	-97.9%	Shares	Defined	2021-08-13
2021-03-31	$36,824,144	265,189	+114.2%	Shares	Defined	2021-05-14
2020-12-31	$29,371,104	123,819	-59.2%	Shares	Defined	2021-02-08
2020-09-30	$72,190,427	303,181	-15.4%	Shares	Defined	2020-11-13
2020-06-30	$41,551,314	358,541	+108.9%	Shares	Defined	2020-08-24
2020-03-31	$13,963,970	171,653	—	Shares	Defined	2020-05-14
No filing history on record for this holder in this stock.