NEXT CENTURY GROWTH INVESTORS LLC

Position in IRTC — iRhythm Holdings, Inc.

CIK 1134007 PLYMOUTH, MN

Position in IRTC

as of Jun 30, 2026 · filed Aug 14, 2026 Compact

Position Value

$22,251,262

+$2,269,768 QoQ

Shares Held

187,064

+10.5% QoQ

Ownership

0.567%

of shares outstanding

% of Portfolio

1.21%

of 13F equity value

Holder Rank

#45

of 304 holders

Holding Since

Mar 2020

10 quarters on record

Voting authority Sole 89% Shared 0% None 11%

Healthcare · as of Jun 30, 2026

NEXT CENTURY GROWTH INVESTORS LLC holds $90,426,837 across 5 Medical Devices names. IRTC ranks #2 (24.6% of the industry book) .

#	Ticker	Company	Shares	Value (USD)
1	AXGN	Axogen, Inc.	872,546	$40,302,899
2	IRTC	iRhythm Holdings, Inc. This page	187,064	$22,251,262
3	TCMD	Tactile Systems Technology Inc	480,207	$14,300,564
4	SIBN	SI-BONE, Inc.	585,289	$9,551,916
5	GKOS	GLAUKOS Corp	28,765	$4,020,196

10 filing rows on record

Report Date	Value (USD)	Shares	Change	Type	Discretion	Filed
2026-06-30	$22,251,262	187,064	+10.5%	Shares	Sole	2026-08-14
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.