Irhythm HoldingsIRTC

13F holders, Q4 2024 (December 31)
227holders −15
27new positions
50sold out
4famous investors
$90.15avg. 13F price*

At the end of Q4 2024, 227 institutions reported holding Irhythm Holdings Inc. (IRTC) in their 13F filings, down 15 from Q3 2024. 27 opened new positions and 50 sold out. The largest holders were Sands Capital Management, LLC ($286.4M), Vanguard Group Inc. ($282.8M) and Artisan Partners Limited Partnership ($249.1M). 4 famous investors held it, including Ken Griffin (0.0% of Citadel Advisors's portfolio), Israel Englander (0.0% of Millennium Management's portfolio) and Ray Dalio (0.0% of Bridgewater Associates's portfolio).

Company
Irhythm Holdings Inc.
CUSIP
450056106
Latest filing quarter
Q2 2026

History

Number of 13F holders

0100200300400 Q1 2024: 252Q1 2024Q2 2024: 228Q2 2024Q3 2024: 242Q3 2024Q4 2024: 227Q4 2024Q1 2025: 256Q1 2025Q2 2025: 303Q2 2025Q3 2025: 338Q3 2025Q4 2025: 335Q4 2025Q1 2026: 305Q1 2026Q2 2026: 303Q2 2026

Total Exit/New Position Q3 2024 → Q4 2024

InstitutionsTotal Value
New Positions27$108.2M
Exits50$118.6M

All 13F filers, Q3 2024 → Q4 2024: 4,689,979 shares bought and 4,737,604 shares sold, net −47,625 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.

Ownership 227 holders

Sands Capital Management, LLC 0.85% Add +49.6% 3,176,702 $286.4M
Vanguard Group Inc. 0.00% Add +0.6% 3,136,370 $282.8M
Artisan Partners Limited Partnership 0.38% Reduce -0.6% 2,762,734 $249.1M
BlackRock, Inc. 0.01% Add +6.6% 2,728,856 $246.1M
Capital Research Global Investors 0.03% Reduce -16.3% 1,637,026 $147.6M
Mackenzie Financial Corp. 0.17% Reduce -2.7% 1,381,942 $124.6M
State Street Corp. 0.00% Add +4.4% 948,781 $85.6M
BNP PARIBAS ASSET MANAGEMENT Holding S.A. 0.20% Add +27.3% 900,116 $81.2M
Westfield Capital Management Co. LP 0.30% Add +44.9% 765,253 $69.0M
Eventide Asset Management, LLC 1.21% Add +0.4% 739,410 $66.7M
Geode Capital Management, LLC 0.01% Reduce -0.3% 731,467 $66.0M
Champlain Investment Partners, LLC 0.41% Add +8.9% 726,262 $65.5M
JPMorgan Chase & Co. 0.01% Reduce -24.8% 706,806 $63.7M
Braidwell LP 2.84% Reduce -9.9% 705,391 $63.6M
Blair William & Co. 0.16% Reduce -6.2% 604,737 $54.5M
Bessemer Group Inc. 0.08% Add +111.7% 568,007 $51.2M
Allspring Global Investments Holdings, LLC 0.08% Add +9.6% 570,048 $51.0M
Slate Path Capital LP 0.83% No change 510,500 $46.0M
Stephens Investment Management Group LLC 0.61% Add +25.6% 502,925 $45.3M
Bank of New York Mellon Corp 0.01% Add +23.2% 491,485 $44.3M
FMR LLC 0.00% Add +22.5% 475,405 $42.9M
First Light Asset Management, LLC 3.71% New 430,500 $38.8M
Ophir Asset Management Pty Ltd 5.74% New 427,402 $38.5M
Rock Springs Capital Management LP 1.37% No change 397,500 $35.8M
Frontier Capital Management Co. LLC 0.30% Add +364.8% 355,147 $32.0M
Alyeska Investment Group, L.P. 0.12% Reduce -7.1% 351,745 $31.7M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC 0.01% Reduce -7.9% 334,823 $30.2M
Goldman Sachs Group Inc. 0.01% Add +72.5% 324,839 $29.3M
Sei Investments Co. 0.04% Add +6.1% 318,653 $28.7M
Schroder Investment Management Group 0.03% Reduce -5.5% 308,338 $27.8M
Citadel Advisors 0.03% Add +450.6% 303,056 $27.3M
Northern Trust Corp. 0.00% Add +7.0% 287,334 $25.9M
Fred Alger Management, LLC 0.12% Reduce -13.2% 272,773 $24.6M
Charles Schwab Investment Management Inc. 0.00% Add +1.5% 259,494 $23.4M
Bank of America Corp. 0.00% Reduce -38.6% 252,468 $22.8M
Morgan Stanley 0.00% Reduce -18.4% 251,764 $22.7M
Wellington Management Group LLP 0.00% Add +9.3% 233,840 $21.1M
Barclays PLC 0.01% Add +3.0% 215,511 $19.4M
Deutsche Bank AG 0.01% Add +0.1% 204,945 $18.5M
Manufacturers Life Insurance Company, The 0.02% Reduce -0.3% 195,919 $17.7M
Citigroup Inc. 0.02% Reduce -4.7% 190,198 $17.2M
UBS Group AG 0.00% Add +309.7% 170,595 $15.4M
Deerfield Management Company, L.P. 0.30% New 156,012 $14.1M
Alberta Investment Management Corp 0.09% Add +53.3% 145,166 $13.1M
Segall Bryant & Hamill, LLC 0.17% Add +5.1% 139,391 $12.6M
WCM Investment Management, LLC 0.03% Reduce -2.1% 138,202 $12.0M
New York State Common Retirement Fund 0.02% Reduce -41.0% 127,579 $11.5M
Balyasny Asset Management L.P. 0.02% Reduce -22.4% 111,502 $10.1M
Amundi 0.00% Add +8.4% 102,908 $9.6M
Raymond James Financial Inc. 0.00% — 101,487 $9.2M
Adage Capital Partners Gp, L.L.C. 0.02% New 100,000 $9.0M
Peregrine Capital Management LLC 0.26% Add +1.1% 99,153 $8.9M
Silvercrest Asset Management Group LLC 0.06% Reduce -0.4% 95,129 $8.6M
Nuveen Asset Management, LLC 0.00% Reduce -4.1% 93,170 $8.4M
Holocene Advisors, LP 0.03% Reduce -52.6% 85,853 $7.7M
Harbor Capital Advisors, Inc. 0.33% Add +6.3% 84,947 $7.7M
C WorldWide Group Holding A/S 0.09% No change 80,000 $7.2M
State of Wisconsin Investment Board 0.02% Add +5.4% 74,416 $6.7M
Comerica Bank 0.03% Add +92.6% 74,210 $6.7M
Ameriprise Financial Inc. 0.00% Add +13.6% 71,254 $6.4M
Perceptive Advisors LLC 0.16% Add +188.4% 65,153 $5.9M
Engineers Gate Manager LP 0.10% Reduce -14.3% 61,944 $5.6M
Swiss National Bank 0.00% Add +1.1% 61,400 $5.5M
Millennium Management 0.00% Reduce -77.2% 60,217 $5.4M
Banque Pictet & Cie SA 0.05% Add +12.7% 59,264 $5.3M
Polar Capital Holdings Plc 0.03% Reduce -12.9% 49,773 $4.5M
Granahan Investment Management, LLC 0.17% Reduce -36.9% 45,730 $4.1M
Legal & General Group Plc 0.00% Reduce -3.3% 44,926 $4.1M
Rhumbline Advisers 0.00% Reduce -1.2% 42,951 $3.9M
Susquehanna Fundamental Investments, LLC 0.06% — 41,864 $3.8M
Alliancebernstein L.P. 0.00% Reduce -96.7% 39,717 $3.6M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 0.01% Add +5.3% 34,349 $3.1M
DLD Asset Management, LP 4.01% Reduce -40.8% 34,200 $3.1M
AXA S.A. 0.01% No change 32,473 $2.9M
Macquarie Group Ltd. 0.00% Reduce -2.0% 30,397 $2.7M
Jane Street Group, LLC 0.00% Reduce -70.6% 29,444 $2.7M
California State Teachers Retirement System 0.00% Reduce -0.7% 29,218 $2.6M
EFG Asset Management (North America) Corp. 0.35% Add +113.6% 28,430 $2.6M
Homestead Advisers Corp 0.06% Add +31.9% 28,100 $2.5M
State of New Jersey Common Pension Fund D 0.01% Reduce -2.1% 27,815 $2.5M
Susquehanna International Group, LLP 0.00% Reduce -67.5% 26,222 $2.4M
Kampmann Melissa S. 1.70% Reduce -8.4% 23,925 $2.2M
Squarepoint Ops LLC 0.01% Reduce -32.0% 22,265 $2.0M
Russell Investments Group, Ltd. 0.00% Reduce -10.4% 22,265 $2.0M
Wells Fargo & Company 0.00% Reduce -60.2% 20,972 $1.9M
T. Rowe Price Associates Inc. 0.00% Reduce -9.8% 20,848 $1.9M
Mutual of America Capital Management LLC 0.02% Reduce -0.1% 20,658 $1.9M
B. Metzler seel. Sohn & Co. AG 0.02% No change 20,500 $1.8M
Group One Trading LLC 0.06% New 20,370 $1.8M
Algert Global LLC 0.04% Add +44.9% 19,643 $1.8M
Invesco Ltd. 0.00% Add +1.1% 19,200 $1.7M
OCONNOR, A Distinct Business Unit of UBS ASSET MANAGEMENT AMERICAS (LLC) 0.04% Reduce -22.4% 19,191 $1.7M
MetLife Investment Management, LLC 0.01% Add +6.0% 19,142 $1.7M
Freestone Grove Partners LP 0.02% — 16,712 $1.5M
Envestnet Asset Management Inc. 0.00% Reduce -68.0% 16,369 $1.5M
Corebridge Financial, Inc. 0.01% Reduce -7.0% 15,543 $1.4M
Intech Investment Management LLC 0.01% Add +57.8% 14,927 $1.3M
Bryce Point Capital, LLC 0.37% — 14,093 $1.3M
Janus Henderson Group PLC 0.00% No change 13,856 $1.3M
Truist Financial Corp. 0.00% Reduce -7.4% 12,799 $1.2M
Monimus Capital Management, LP 0.99% — 11,659 $1.1M
WoodTrust Financial Corp 0.14% Reduce -2.2% 11,057 $997K
Polar Asset Management Partners Inc. 0.02% Reduce -88.2% 11,000 $992K
Handelsbanken Fonder AB 0.00% Add +5.9% 10,839 $977K
Ensign Peak Advisors, Inc 0.00% No change 10,643 $960K
Voya Investment Management LLC 0.00% Reduce -7.3% 9,407 $848K
State Board of Administration of Florida Retirement System 0.00% Reduce -1.1% 9,087 $819K
Arizona State Retirement System 0.01% Add +1.0% 9,047 $816K
ProShare Advisors LLC 0.00% Add +52.1% 8,988 $810K
Synovus Financial Corp. 0.01% Add +0.9% 8,801 $794K
Exchange Traded Concepts, LLC 0.02% Reduce -22.3% 8,613 $777K
AQR Capital Management 0.00% New 8,280 $747K
Diversified Trust Co. 0.02% Add +25.4% 8,276 $746K
Zurcher Kantonalbank (Zurich Cantonalbank) 0.00% Add +15.0% 8,198 $739K
Cinctive Capital Management LP 0.04% New 8,141 $734K
Ascent Group, LLC 0.05% Add +13.0% 8,110 $731K
HighTower Advisors, LLC 0.00% Add +68.9% 7,607 $686K
Mitsubishi UFJ Asset Management Co., Ltd. 0.00% Reduce -6.6% 7,295 $663K
Simplex Trading, LLC 0.02% Reduce -67.3% 7,139 $643K
Laird Norton Wetherby Wealth Management, LLC 0.03% New 6,737 $607K
Police & Firemen's Retirement System of New Jersey 0.01% — 6,716 $606K
KLP Kapitalforvaltning As 0.00% — 6,600 $595K
Qube Research & Technologies Ltd 0.00% Reduce -43.9% 6,159 $555K
Schonfeld Strategic Advisors LLC 0.00% New 6,138 $553K
Natixis 0.00% New 6,000 $541K
Cim Investment Management Inc. 0.15% No change 5,834 $526K
Values First Advisors, Inc. 0.28% Add +9.1% 5,588 $504K
Nomura Holdings Inc. 0.00% New 5,413 $488K
Abn Amro Investment Solutions 0.01% Reduce -4.2% 5,239 $472K
Oppenheimer Asset Management Inc. 0.01% Reduce -44.4% 5,162 $465K
PNC Financial Services Group, Inc. 0.00% Add +32.3% 4,980 $449K
Farringdon Capital, Ltd. 0.18% — 4,721 $426K
Hennion & Walsh Asset Management, Inc. 0.02% Add +28.3% 4,506 $406K
HSBC Holdings PLC 0.00% Reduce -1.6% 4,452 $396K
BNP Paribas Financial Markets 0.00% Reduce -62.8% 4,377 $395K
SG Americas Securities, LLC 0.00% Reduce -73.3% 4,308 $388K
Aquatic Capital Management LLC 0.01% Reduce -49.2% 4,165 $376K
CIBC Private Wealth Group LLC 0.00% Reduce -1.5% 4,006 $373K
Creative Planning 0.00% New 4,079 $368K
Ancora Advisors LLC 0.01% Add +20.1% 4,000 $361K
Captrust Financial Advisors 0.00% New 3,888 $351K
Fox Run Management, L.L.C. 0.06% Reduce -46.1% 3,837 $346K
Victory Capital Management Inc. 0.00% Reduce -2.3% 3,809 $343K
Tower Research Capital LLC (TRC) 0.01% Add +1763.2% 3,596 $324K
Pictet Asset Management Holding SA 0.00% No change 3,584 $323K
Public Employees Retirement Association of Colorado 0.00% No change 3,500 $316K
Bridgewater Associates 0.00% Reduce -65.9% 3,364 $303K
Bank Pictet & Cie (Europe) AG 0.01% Add +5.9% 3,289 $297K
Brown Advisory Inc. 0.00% New 3,280 $296K
Ameritas Investment Partners, Inc. 0.01% Add +6.9% 3,271 $295K
IMA Advisory Services, Inc. 0.04% No change 3,230 $291K
CANADA LIFE ASSURANCE Co 0.00% Reduce -4.5% 3,072 $277K
Cibc World Markets Corp. 0.00% New 2,925 $264K
Graham Capital Management, L.P. 0.01% Reduce -46.7% 2,823 $255K
Versor Investments LP 0.04% New 2,780 $251K
Mariner, LLC 0.00% Reduce -28.1% 2,777 $250K
LPL Financial LLC 0.00% New 2,691 $243K
Principal Financial Group Inc. 0.00% Reduce -8.4% 2,664 $240K
Gsa Capital Partners LLP 0.02% New 2,397 $216K
Xponance LLC 0.00% New 2,253 $203K
Osaic Holdings, Inc. 0.00% Reduce -5.2% 1,689 $152K
Bayforest Capital Ltd 0.19% — 1,664 $150K
Royal Bank of Canada 0.00% Reduce -93.8% 1,448 $130K
KBC Group NV 0.00% Add +45.1% 1,319 $119K
IFP Advisors, Inc 0.00% Reduce -5.2% 1,198 $108K
Amalgamated Bank 0.00% No change 1,087 $98K
Nisa Investment Advisors, LLC 0.00% Add +166.6% 1,037 $94K
Richards, Merrill & Peterson, Inc. 0.05% — 1,025 $92K
Wilmington Savings Fund Society, FSB 0.00% Reduce -37.5% 1,000 $90K
Ramirez Asset Management, Inc. 0.01% No change 800 $72K
Clearstead Advisors, LLC 0.00% Reduce -17.3% 695 $63K
Raiffeisen Bank International AG 0.00% — 680 $60K
Leonteq Securities AG 0.01% Reduce -31.7% 648 $58K
US Bancorp \de 0.00% Reduce -24.1% 604 $54K
Van Eck Associates Corp. 0.00% Add +41.3% 554 $50K
R Squared Ltd 0.04% — 500 $45K
Cwm, LLC 0.00% Reduce -79.0% 335 $30K
Allworth Financial LP 0.00% No change 247 $27K
Federation des caisses Desjardins du Quebec 0.00% Add +3.3% 281 $25K
Evelyn Partners Investment Management LLP 0.00% — 245 $22K
Smartleaf Asset Management LLC 0.00% Add +101.9% 208 $18K
STRS Ohio 0.00% New 200 $18K
Covestor Ltd 0.01% Add +135.9% 184 $17K
EverSource Wealth Advisors, LLC 0.00% Reduce -20.0% 184 $17K
North Star Investment Management Corp. 0.00% New 170 $15K
Lindbrook Capital, LLC 0.00% Add +16.9% 159 $14K
Signaturefd, LLC 0.00% Add +8.7% 137 $12K
Assetmark, Inc. 0.00% Reduce -99.1% 116 $10K
Blue Trust, Inc. 0.00% Add +96.5% 112 $10K
Farther Finance Advisors, LLC 0.00% Add +2080.0% 109 $10K
Jones Financial Companies LLLP 0.00% Add +2.9% 108 $10K
Elequin Capital, LP 0.00% Reduce -7.0% 106 $10K
MassMutual Private Wealth & Trust, FSB 0.00% No change 100 $9K
Fifth Third Bancorp 0.00% No change 90 $8K
Toth Financial Advisory Corp. 0.00% No change 85 $8K
Quadrant Capital Group LLC 0.00% Add +341.2% 75 $7K
Versant Capital Management, Inc 0.00% New 65 $6K
NewEdge Advisors, LLC 0.00% No change 54 $5K
AdvisorNet Financial, Inc 0.00% No change 52 $5K
Rothschild Investment LLC 0.00% Add +12.5% 45 $4K
Sterling Capital Management LLC 0.00% No change 32 $3K
Parallel Advisors, LLC 0.00% Reduce -96.1% 31 $3K
GAMMA Investing LLC 0.00% Add +55.6% 28 $3K
Arax Advisory Partners 0.00% No change 25 $2K
Geneos Wealth Management Inc. 0.00% No change 24 $2K
Manchester Capital Management LLC 0.00% No change 23 $2K
Avior Wealth Management, LLC 0.00% No change 23 $2K
Huntington National Bank 0.00% Reduce -52.2% 22 $2K
Steward Partners Investment Advisory, LLC 0.00% Reduce -91.6% 20 $2K
Carolinas Wealth Consulting LLC 0.00% New 16 $1K
Bell Investment Advisors, Inc 0.00% No change 13 $1K
Montag A & Associates Inc. 0.00% No change 12 $1K
JFS Wealth Advisors, LLC 0.00% Reduce -38.9% 11 $992
CVA Family Office, LLC 0.00% New 10 $902
Harbour Investments, Inc. 0.00% No change 10 $902
Security National Bank 0.00% No change 9 $812
Private Wealth Management Group, LLC 0.00% No change 7 $632
Financial Perspectives, Inc 0.00% No change 7 $631
Wolff Wiese Magana LLC 0.00% Reduce -88.9% 5 $451
Larson Financial Group LLC 0.00% New 4 $361
DHJJ Financial Advisors, Ltd. 0.00% No change 2 $181
MV Capital Management, Inc. 0.00% Add +100.0% 2 $181
Aster Capital Management (DIFC) Ltd 0.00% New 2 $180
National Bank of Canada 0.00% Reduce -97.7% 1 $90
Global Retirement Partners, LLC 0.00% New 1 $90
SBI Securities Co., Ltd. 0.00% — 1 $90
Coppell Advisory Solutions LLC 0.00% No change 1 $87

"% of holder's portfolio" is IRTC's weight in each manager's 13F, not the share of Irhythm Holdings Inc. the manager owns.