RENAISSANCE TECHNOLOGIES LLC

Position in IRTC — iRhythm Holdings, Inc.

CIK 1037389 NEW YORK, NY

Position in IRTC

as of Mar 31, 2026 · filed May 14, 2026 Compact

Position Value

$6,349,476

-$12,086,540 QoQ

Shares Held

53,800

-48.2% QoQ

Ownership

0.164%

of shares outstanding

% of Portfolio

0.01%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2021

14 quarters on record

Voting authority Sole 100.ToString("F0")% Shared 0.ToString("F0")% None 0.ToString("F0")%

Healthcare · as of Mar 31, 2026

RENAISSANCE TECHNOLOGIES LLC holds $985,614,599 across 73 Medical Devices names. IRTC ranks #18 (0.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	BSX	Boston Scientific Corp	3,152,005	$197,788,313
2	SYK	Stryker Corp	391,600	$128,675,844
3	ABT	Abbott Laboratories	1,238,666	$127,173,838
4	DXCM	Dexcom Inc	1,582,996	$99,412,148
5	PODD	Insulet Corp	426,003	$89,392,469
6	MASI	Masimo Corp	239,500	$42,599,865
7	IRMD	Iradimed Corp	440,712	$42,422,937
8	INMD	InMode Ltd.	2,586,218	$35,379,462

14 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$6,349,476	53,800	-48.2%	Shares	Sole	2026-05-14
2025-12-31	$18,436,016	103,900	-14.4%	Shares	Sole	2026-02-12
2025-09-30	$20,879,586	121,400	-14.0%	Shares	Sole	2025-11-13
2025-06-30	$21,739,152	141,200	+538.9%	Shares	Sole	2025-08-13
2025-03-31	$2,313,428	22,100	-69.6%	Shares	Sole	2025-05-14
2023-09-30	$6,862,128	72,800	-12.8%	Shares	Sole	2023-11-14
2023-06-30	$8,710,720	83,500	+769.8%	Shares	Sole	2023-08-11
2023-03-31	$1,190,688	9,600	-90.6%	Shares	Sole	2023-05-12
2022-12-31	$9,535,606	101,800	+520.7%	Shares	Sole	2023-02-13
2022-06-30	$1,771,692	16,400	-12.3%	Shares	Sole	2022-08-12
2022-03-31	$2,944,689	18,700	-92.3%	Shares	Sole	2022-05-13
2021-09-30	$14,177,376	242,100	-27.9%	Shares	Sole	2021-11-12
2021-06-30	$22,267,060	335,600	+135.5%	Shares	Sole	2021-08-13
2021-03-31	$19,787,550	142,500	—	Shares	Sole	2021-05-13
No filing history on record for this holder in this stock.