Who Owns iRhythm Technologies, Inc. (IRTC)?Hedge Fund & Institutional Holders

$112.81-1.86 (-1.62%)HealthcareNASDAQ

Institutional Holders

50

as of Q4 2025

Total Institutional Value

$5.39515301585268e+257T

% of Float Held

9.523049871017348e+299%

QoQ Change in Holders

+14 / -1

Price History

$57.07$90.12$123.16$156.21$189.25Sep 24Jun 25Mar 26

IRTC — Biggest New Institutional Buyers This Quarter

FundActionShares AddedValue Added
RTW INVESTMENTS, LPNew Position+1.2M+$209.7M
Stephens Investment Management Group LLCNew Position+519K+$92.1M
Allspring Global Investments Holdings, LLCNew Position+407K+$71.4M
BESSEMER GROUP INCNew Position+322K+$55.0M
PRICE T ROWE ASSOCIATES INC /MD/Increased+162K+$29.6M
BALYASNY ASSET MANAGEMENT L.P.New Position+167K+$29.0M
MASSACHUSETTS FINANCIAL SERVICES CO /MA/New Position+150K+$26.7M
JENNISON ASSOCIATES LLCNew Position+139K+$24.7M
NEW YORK STATE COMMON RETIREMENT FUNDNew Position+130K+$23.0M
FEDERATED HERMES, INC.New Position+106K+$18.0M
Bank of New York Mellon CorpNew Position+112K+$18.0M
C WorldWide Group Holding A/SNew Position+80K+$14.2M
WCM INVESTMENT MANAGEMENT, LLCNew Position+73K+$13.1M
PRINCIPAL FINANCIAL GROUP INCNew Position+69K+$12.3M
Freestone Grove Partners LPNew Position+63K+$11.0M

IRTC — Institutions Reducing or Closing Positions

FundActionShares SoldValue Sold
BlackRock, Inc.Decreased-61K-$494.1B
Artisan Partners Limited PartnershipDecreased-1.1M-$441.3B
SANDS CAPITAL MANAGEMENT, LLCDecreased-536K-$384.3B
STATE STREET CORPDecreased-83K-$145.7B
BLAIR WILLIAM & CO/ILDecreased-22K-$127.3B
MACKENZIE FINANCIAL CORPDecreased-108K-$78.2B
WELLINGTON MANAGEMENT GROUP LLPDecreased-14K-$72.6B
BANK OF AMERICA CORP /DE/Decreased-21K-$64.6B
Champlain Investment Partners, LLCClosed Position-366K-$62.9B
Point72 Asset Management, L.P.Decreased-129K-$59.8B
Polar Capital Holdings PlcDecreased-28K-$57.7B
FRED ALGER MANAGEMENT, LLCDecreased-10K-$55.0B
NORTHERN TRUST CORPDecreased-15K-$50.6B
CHARLES SCHWAB INVESTMENT MANAGEMENT INCDecreased-538-$49.3B
SEI INVESTMENTS CODecreased-44K-$42.4B

Top Institutional Holders(Q4 2025)

#FundSharesValue% of PortfolioType
1VANGUARD GROUP INC3,040,549$539.5M0.01%Share
2SANDS CAPITAL MANAGEMENT, LLC1,699,645$301.6M0.92%Share
3Artisan Partners Limited Partnership1,511,992$268.0M0.40%Share
4BlackRock, Inc.1,349,032$239.0M0.00%Share
5Capital Research Global Investors1,184,746$210.0M0.04%Share
6RTW INVESTMENTS, LP1,181,990$209.7M2.10%Share
7BlackRock, Inc.993,743$176.0M0.00%Share
8MILLENNIUM MANAGEMENT LLC826,376$146.0M0.06%Share
9STATE STREET CORP764,839$135.0M0.00%Share
10GEODE CAPITAL MANAGEMENT, LLC754,916$133.0M0.01%Share
11BLAIR WILLIAM & CO/IL718,797$127.0M0.34%Share
12EVENTIDE ASSET MANAGEMENT, LLC692,486$122.9M1.92%Share
13JPMORGAN CHASE & CO685,660$121.0M0.01%Share
14Holocene Advisors, LP683,568$121.0M0.25%Share
15FULLER & THALER ASSET MANAGEMENT, INC.639,423$113.0M0.39%Share
16ARROWSTREET CAPITAL, LIMITED PARTNERSHIP606,969$107.0M0.06%Share
17BNP Paribas Asset Management Holding S.A.582,564$103.0M0.12%Share
18Stephens Investment Management Group LLC519,325$92.1M1.20%Share
19PRICE T ROWE ASSOCIATES INC /MD/472,538$83.0M0.01%Share
20Invesco Ltd.454,474$80.6M0.01%Share
21FMR LLC396,252$70.0M0.00%Share
22Allspring Global Investments Holdings, LLC397,007$69.6M0.11%Share
23UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC380,488$67.0M0.01%Share
24D. E. Shaw & Co., Inc.360,669$63.0M0.03%Share
25MACKENZIE FINANCIAL CORP347,304$61.0M0.07%Share
26UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC337,140$59.0M0.01%Share
27WESTFIELD CAPITAL MANAGEMENT CO LP325,063$57.0M0.24%Share
28Polar Capital Holdings Plc308,100$54.0M0.21%Share
29LOOMIS SAYLES & CO L P292,309$51.0M0.06%Share
30CHARLES SCHWAB INVESTMENT MANAGEMENT INC286,124$50.0M0.01%Share
31BESSEMER GROUP INC276,556$49.0M0.08%Share
32DRIEHAUS CAPITAL MANAGEMENT LLC267,968$47.5M0.32%Share
33LORD, ABBETT & CO. LLC267,872$47.0M0.14%Share
34BANK OF AMERICA CORP /DE/257,380$45.0M0.00%Share
35NORTHERN TRUST CORP248,606$44.0M0.01%Share
36WELLINGTON MANAGEMENT GROUP LLP237,621$42.0M0.01%Share
37Rock Springs Capital Management LP235,000$41.7M2.14%Share
38Assenagon Asset Management S.A.225,205$40.0M0.06%Share
39VANGUARD GROUP INC220,618$39.1M0.00%Share
40GOLDMAN SACHS GROUP INC222,707$39.0M0.00%Share
41BRAIDWELL LP217,345$38.6M1.23%Share
42Point72 Asset Management, L.P.219,468$38.0M0.04%Share
43SEI INVESTMENTS CO199,923$35.0M0.03%Share
44MANUFACTURERS LIFE INSURANCE COMPANY, THE196,075$34.0M0.03%Share
45BARCLAYS PLC192,765$34.0M0.01%Share
46NEXT CENTURY GROWTH INVESTORS LLC172,838$30.7M2.13%Share
47CITIGROUP INC170,045$30.0M0.01%Share
48FMR LLC169,722$30.0M0.00%Share
49BALYASNY ASSET MANAGEMENT L.P.167,274$29.0M0.04%Share
50SCHRODER INVESTMENT MANAGEMENT GROUP162,053$28.0M0.02%Share

IRTC Institutional Ownership History

QuarterHoldersTotal ValueChange
Q4 2025331$6.1B+80
Q3 2025251$5.3T-10
Q2 2025261$3.8T+9
Q1 2025252$3.5T+38
Q4 2024214$59.3T+9
Q3 2024205$1386.1T+11
Q2 2024194$1755.4T-11
Q1 2024205$1858.8T—

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As of Q4 2025, 50 institutional investors hold IRTC (iRhythm Technologies, Inc.). The largest holder is VANGUARD GROUP INC with $539.5M in shares. This quarter, 14 institutions opened new positions and 1 closed their positions.

Frequently Asked Questions

How many hedge funds own IRTC?

As of Q4 2025, 50 institutional investors report holding IRTC (iRhythm Technologies, Inc.) in their 13F filings.

Who is the largest institutional holder of IRTC?

The largest institutional holder of IRTC is VANGUARD GROUP INC with $539.5M in shares.

Is institutional ownership of IRTC increasing or decreasing?

This quarter, 14 institutions opened new positions in IRTC and 1 closed their positions.