iRhythm Holdings, Inc. (IRTC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

32,170,000Shares Outstanding

35,665,464Shares held by institutions

$4,239,910,360Value of institutional holdings

110.87%Institutional ownership %

2.70%Shares Changed QoQ

329No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

iRhythm Holdings, Inc. (NASDAQ:IRTC) appears in 329 institutional 13F filings for the quarter ending December 2025.

They owned 109.8% of outstanding stock in December 2025, down from 172.6% the prior quarter.
Their total shares held in IRTC increased 2.87% quarter over quarter, and separately, investors owning iRhythm Holdings increased 45.58% from a year ago.
Activity in IRTC broke down as 150 buyers, 122 sellers, and 57 unchanged among 329 total holders.
The aggregate institutional position in iRhythm Holdings amounted to 35.32Mn shares as of December 2025, up by 986.15K shares quarter on quarter, and down 2.89Mn shares year over year.
Ares Financial Consulting, LLC holds the largest position in IRTC at 25 shares as of December 31, 2025, or 0.0% of shares outstanding.
Business Quant data shows the 1 biggest positions in iRhythm Holdings as of December 2025 are held by Ares Financial Consulting, LLC (25).

329 Institutional Holders

35,665,464 Total Shares Held

Rows:

Download Data

Owner Name	Date	Shares Held	Change (QoQ)	Change (%)	Value (USD)
VANGUARD GROUP INC	31 Dec, 2025	3,310,519	70,420	2.17%	$587,418,492.00
BlackRock, Inc.	31 Dec, 2025	2,813,989	-61,487	-2.14%	$499,314,164.00
SANDS CAPITAL MANAGEMENT, LLC	31 Dec, 2025	1,699,645	-536,465	-23.99%	$301,585,009.00
Artisan Partners Limited Partnership	31 Dec, 2025	1,511,992	-1,055,521	-41.11%	$268,287,790.00
FULLER & THALER ASSET MANAGEMENT, INC.	31 Dec, 2025	1,278,846	683,598	114.84%	$226,918,500.00
Capital Research Global Investors	31 Dec, 2025	1,184,746	1,010	0.09%	$210,221,330.00
RTW INVESTMENTS, LP	31 Dec, 2025	1,181,990	1,181,990	0.00%	$209,732,306.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	858,405	68,301	8.64%	$152,336,703.00
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	31 Dec, 2025	829,862	259,800	45.57%	$147,250,716.00
MILLENNIUM MANAGEMENT LLC	31 Dec, 2025	826,376	548,519	197.41%	$146,632,157.00
State Street Corp	31 Dec, 2025	764,839	-83,039	-9.79%	$135,713,032.00
Jpmorgan Chase & Co	31 Dec, 2025	758,587	-120,289	-13.69%	$134,603,787.00
BLAIR WILLIAM & CO/IL	31 Dec, 2025	718,797	-21,924	-2.96%	$127,543,319.00
EVENTIDE ASSET MANAGEMENT, LLC	31 Dec, 2025	692,486	974	0.14%	$122,880,468.00
Holocene Advisors, LP	31 Dec, 2025	683,568	210,288	44.43%	$121,292,306.00
Goldman Sachs Group Inc	31 Dec, 2025	658,270	335,013	103.64%	$116,803,428.00
FMR LLC	31 Dec, 2025	628,766	4,671	0.75%	$111,568,179.00
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP	31 Dec, 2025	606,969	65,930	12.19%	$107,700,579.00
BNP Paribas Asset Management Holding S.A.	31 Dec, 2025	583,014	12,760	2.24%	$103,450.00
Stephens Investment Management Group LLC	31 Dec, 2025	519,325	-633	-0.12%	$92,149,028.00

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