iRhythm Holdings, Inc. (IRTC) Institutional Ownership

Institutions by Trading Activity

Ownership Statistics

0Shares Outstanding

185,631Shares held by institutions

$21,208,342Value of institutional holdings

112.46%Institutional ownership %

-3.59%Shares Changed QoQ

302No. of institutional investors

Shares Owned by Institutions

Shares Purchased/Sold by Institutions

Ownership Summary

iRhythm Holdings, Inc. (NASDAQ:IRTC) showed up in the 13F filings of 329 institutional investors as of December 2025.

These investors held 109.8% of outstanding shares in December 2025, down from 172.6% in September 2025.
They increased total shares held in IRTC by 2.87% quarter over quarter, and investors in iRhythm Holdings increased 45.58% from a year ago.
Among the 329 funds, 150 bought more iRhythm Holdings shares, 122 sold down, and 57 held their ground.
Combined, these investors held 35.32Mn shares in IRTC for December 2025, up by 986.15K shares quarter on quarter, and down 2.89Mn shares year over year.
VANGUARD GROUP INC holds the largest position in IRTC at 3.31Mn shares as of December 31, 2025, or 10.29% of shares outstanding.
The biggest buyers of iRhythm Holdings for the quarter ending December 2025 included RTW INVESTMENTS, LP (1.18Mn), FULLER & THALER ASSET MANAGEMENT, INC. (683.6K), MILLENNIUM MANAGEMENT LLC (548.52K), UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC (259.8K), Holocene Advisors, LP (210.29K).
The biggest sellers of iRhythm Holdings for the quarter ending December 2025 included Artisan Partners Limited Partnership (1.06Mn), SANDS CAPITAL MANAGEMENT, LLC (536.46K), Bank Of America Corp /De/ (396.81K), Man Group plc (150.22K), Point72 Asset Management, L.P. (128.64K).
Per Business Quant, the top 10 investors in IRTC for the quarter ending December 2025 include VANGUARD GROUP INC (3.31Mn), BlackRock, Inc. (2.81Mn), SANDS CAPITAL MANAGEMENT, LLC (1.7Mn), Artisan Partners Limited Partnership (1.51Mn), FULLER & THALER ASSET MANAGEMENT, INC. (1.28Mn), Capital Research Global Investors (1.18Mn), RTW INVESTMENTS, LP (1.18Mn), GEODE CAPITAL MANAGEMENT, LLC (858.4K), UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC (829.86K), MILLENNIUM MANAGEMENT LLC (826.38K).

329 Institutional Holders

185,631 Total Shares Held

Rows:

Download Data

Owner Name	Date	Change (QoQ)	Change (%)	Value (USD)
BlackRock, Inc.	31 Dec, 2025	-61,487	-2.14%	$0.00
VANGUARD GROUP INC	31 Dec, 2025	70,420	2.17%	$0.00
Holocene Advisors, LP	31 Dec, 2025	210,288	44.43%	$0.00
Barclays Plc	31 Dec, 2025	-202,025	-51.02%	$0.00
SANDS CAPITAL MANAGEMENT, LLC	31 Dec, 2025	-536,465	-23.99%	$0.00
Allspring Global Investments Holdings, LLC	31 Dec, 2025	-8,108	-1.95%	$0.00
HSBC HOLDINGS PLC	31 Dec, 2025	5,797	20.52%	$0.00
Artisan Partners Limited Partnership	31 Dec, 2025	-1,055,521	-41.11%	$0.00
Polar Capital Holdings Plc	31 Dec, 2025	-27,808	-8.28%	$0.00
Rockefeller Capital Management L.P.	31 Dec, 2025	2,005	279.64%	$0.00
FULLER & THALER ASSET MANAGEMENT, INC.	31 Dec, 2025	683,598	114.84%	$0.00
Point72 Asset Management, L.P.	31 Dec, 2025	-128,644	-36.95%	$0.00
Capital Research Global Investors	31 Dec, 2025	1,010	0.09%	$0.00
BRAIDWELL LP	31 Dec, 2025	-8,500	-3.76%	$0.00
RTW INVESTMENTS, LP	31 Dec, 2025	1,181,990	0.00%	$0.00
UBS Group AG	31 Dec, 2025	100,435	190.28%	$0.00
GEODE CAPITAL MANAGEMENT, LLC	31 Dec, 2025	68,301	8.64%	$0.00
Qube Research & Technologies Ltd	31 Dec, 2025	-22,248	-13.33%	$0.00
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC	31 Dec, 2025	259,800	45.57%	$0.00
Nuveen, LLC	31 Dec, 2025	-82,973	-38.30%	$0.00

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