NEXT CENTURY GROWTH INVESTORS LLC

Position in IRTC — iRhythm Holdings, Inc.

CIK 1134007 PLYMOUTH, MN

Position in IRTC

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

Position Value

$19,981,494

-$10,686,880 QoQ

Shares Held

169,306

-2.0% QoQ

Ownership

0.515%

of shares outstanding

% of Portfolio

1.46%

of 13F equity value

Holder Rank

—

not a current holder

Holding Since

Mar 2020

9 quarters on record

Voting authority Sole 89.36777196319092.ToString("F0")% Shared 0.ToString("F0")% None 10.63222803680909.ToString("F0")%

Healthcare · as of Mar 31, 2026

NEXT CENTURY GROWTH INVESTORS LLC holds $137,573,259 across 7 Medical Devices names. IRTC ranks #4 (14.5% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AORT	Artivion, Inc.	1,023,701	$37,487,930
2	AXGN	Axogen, Inc.	865,963	$28,689,354
3	ATEC	Alphatec Holdings, Inc.	2,370,377	$25,789,701
4	IRTC	iRhythm Holdings, Inc. This page	169,306	$19,981,494
5	TCMD	Tactile Systems Technology Inc	428,159	$11,187,794
6	TMDX	TransMedics Group, Inc.	96,445	$9,587,597
7	SIBN	SI-BONE, Inc.	383,958	$4,849,389

9 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-03-31	$19,981,494	169,306	-2.0%	Shares	Sole	2026-05-14
2025-12-31	$30,668,374	172,838	-8.6%	Shares	Sole	2026-02-13
2025-09-30	$32,520,213	189,082	-15.9%	Shares	Sole	2025-11-14
2025-06-30	$34,619,907	224,863	+8.0%	Shares	Sole	2025-08-14
2025-03-31	$21,796,469	208,220	+473.8%	Shares	Sole	2025-05-14
2020-12-31	$8,608,350	36,290	-8.5%	Shares	Sole	2021-02-12
2020-09-30	$9,445,585	39,669	-25.1%	Shares	Sole	2020-11-13
2020-06-30	$6,135,680	52,944	-0.4%	Shares	Sole	2020-08-14
2020-03-31	$4,322,369	53,133	—	Shares	Sole	2020-05-14
No filing history on record for this holder in this stock.