iRhythm Holdings, Inc.

IRTC

Exchange: Nasdaq
Industry: Surgical & Medical Instruments & Apparatus
SEC CIK: 0001388658

SEC filings (opens in a new tab)

In the last 90 days, iRhythm Holdings, Inc. insiders filed 0 open-market purchases and 11 sales; 304 institutions reported holding it in 13F filings for Q2 2026, worth $4.24B in total; no superinvestor holds it.

Q1 2025 vs. Q4 2024

How the institutions holding iRhythm Holdings, Inc. changed between Q4 2024 and Q1 2025.

All holders in Q1 2025 All holders in Q4 2024

13F holders of IRTC: Q4 2024 compared with Q1 2025
Measure	Q4 2024	Of which not filed for Q1 2025	Q1 2025	Change
Holders	227	3	256	+32
Shares	34.3M	99.9K	36.0M	+1.75M (+5.1%)
Value	$3.09B	$9.01M	$3.77B	+$682.2M (+22.1%)

3 institutions that held it in Q4 2024 haven't filed for Q1 2025 yet. Not filing isn't selling, so the changes leave them out.

New holders (54)

Institutions that held iRhythm Holdings, Inc. at the end of Q1 2025 but not at the end of Q4 2024.

Institutions new to IRTC in Q1 2025
Institution	Shares	Value	% of portfolio
Fuller & Thaler Asset Management, Inc.	518,240	$54.2M	0.21%
Point72 Asset Management, L.P.	420,303	$44.0M	0.12%
Jennison Associates LLC	280,187	$29.3M	0.02%
Lord, Abbett & Co. LLC	258,628	$27.1M	0.10%
Next Century Growth Investors LLC	208,220	$21.8M	1.94%
Verition Fund Management LLC	166,472	$17.4M	0.10%
Nuveen, LLC	92,729	$9.71M	0.00%
Point72 (DIFC) Ltd	72,129	$7.55M	0.73%
Redmile Group, LLC	56,844	$5.95M	0.56%
Castleark Management LLC	48,290	$5.05M	0.18%
Cubist Systematic Strategies, LLC	43,717	$4.58M	0.06%
First Trust Advisors LP	33,860	$3.54M	0.00%
Fieldview Capital Management, LLC	24,203	$2.53M	0.36%
Renaissance Technologies LLC	22,100	$2.31M	0.00%
Jefferies Financial Group Inc.	21,844	$2.29M	0.04%
Trexquant Investment LP	20,791	$2.18M	0.03%
HealthInvest Partners AB	20,547	$2.15M	0.95%
Kennedy Capital Management, Inc.	17,759	$1.86M	0.04%
Brevan Howard Capital Management LP	17,122	$1.79M	0.05%
Universal- Beteiligungs- und Servicegesellschaft mbH	12,421	$1.30M	0.00%
Semanteon Capital Management, LP	10,311	$1.08M	0.59%
Steel Peak Wealth Management LLC	7,488	$783.8K	0.03%
Scientech Research LLC	6,505	$680.9K	0.18%
Petrus Trust Company, LTA	5,455	$571.0K	0.05%
Yarbrough Capital, LLC	4,650	$486.8K	0.02%
Teacher Retirement System of Texas	4,575	$478.9K	0.00%
Keybank National Association	3,172	$332.0K	0.00%
Silver Oak Securities, Inc	2,863	$300.6K	0.03%
Caas Capital Management LP	2,502	$261.9K	0.12%
XTX Topco Ltd	2,462	$257.7K	0.01%
Vident Advisory, LLC	2,352	$246.2K	0.00%
Prudential Financial Inc	2,275	$238.1K	0.00%
Stephens Inc	2,122	$222.1K	0.00%
JustInvest LLC	2,117	$221.6K	0.00%
Frank, Rimerman Advisors LLC	2,045	$214.1K	0.02%
RiverPark Advisors, LLC	2,040	$213.5K	0.17%
SeaCrest Wealth Management, LLC	2,030	$212.5K	0.02%
Avanza Fonder AB	1,137	$123.2K	0.00%
BI Asset Management Fondsmaeglerselskab A/S	476	$50.0K	0.00%
Canada Pension Plan Investment Board	300	$31.4K	0.00%
Quest Partners LLC	283	$29.6K	0.00%
MCF Advisors LLC	240	$25.1K	0.00%
Private Wealth Asset Management, LLC	226	$23.7K	0.00%
Coldstream Capital Management Inc	127	$13.3K	0.00%
Hollencrest Capital Management	108	$11.3K	0.00%
Rise Advisors, LLC	69	$7.22K	0.00%
Quarry LP	69	$7.22K	0.00%
Northwestern Mutual Wealth Management Co	67	$7.01K	0.00%
South State Corp.	46	$4.82K	0.00%
Caitong International Asset Management Co., Ltd	25	$2.62K	0.00%
Parkside Financial Bank & Trust	15	$1.57K	0.00%
Kestra Investment Management, LLC	14	$1.47K	0.00%
Stephens Consulting, LLC	10	$1.05K	0.00%
Activest Wealth Management	3	$314	0.00%

Sold out (22)

Institutions that held iRhythm Holdings, Inc. at the end of Q4 2024 and filed for Q1 2025 without it.

Institutions that sold out of IRTC in Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Alyeska Investment Group, L.P.	351,745	$31.7M
Deerfield Management Company, L.P. (Series C)	156,012	$14.1M
Perceptive Advisors LLC	65,153	$5.87M
AXA S.A.	32,473	$2.93M
Bryce Point Capital, LLC	14,093	$1.27M
Monimus Capital Management, LP	11,659	$1.05M
Polar Asset Management Partners Inc.	11,000	$991.9K
Simplex Trading, LLC	7,139	$643.0K
Qube Research & Technologies Ltd	6,159	$555.4K
Nomura Holdings Inc	5,413	$488.1K
Farringdon Capital, Ltd.	4,721	$425.7K
Bridgewater Associates, LP	3,364	$303.3K
Brown Advisory Inc	3,280	$295.8K
Versor Investments LP	2,780	$250.7K
Ramirez Asset Management, Inc.	800	$72.1K
R Squared Ltd	500	$45.1K
Elequin Capital LP	106	$9.56K
SRS Capital Advisors, Inc.	25	$2.25K
Nelson, Van Denburg & Campbell Wealth Management Group, LLC	23	$2.07K
Aster Capital Management (DIFC) Ltd	2	$180
National Bank of Canada	1	$90
Coppell Advisory Solutions LLC	1	$87

Not filed for Q1 2025 yet (3)

Institutions that held iRhythm Holdings, Inc. at the end of Q4 2024 and haven't filed a 13F for Q1 2025. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding IRTC in Q4 2024 that haven't filed for Q1 2025
Institution	Shares, Q4 2024	Value, Q4 2024
Nuveen Asset Management, LLC	93,170	$8.40M
Wetherby Asset Management Inc	6,737	$607.5K
Global Retirement Partners, LLC	1	$90