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iRhythm Holdings, Inc.

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

In the last 90 days, iRhythm Holdings, Inc. insiders filed 0 open-market purchases and 11 sales; 303 institutions reported holding it in 13F filings for Q2 2026, worth $4.24B in total; no superinvestor holds it.

13F holders, Q1 2021

Institutional positions in iRhythm Holdings, Inc. as of Mar 31, 2021. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
217
No complete 13F data for Q4 2020
Shares held
31.3M
No complete 13F data for Q4 2020
Total value
$4.33B
No complete 13F data for Q4 2020

Holders and value by quarter

Institutions reporting IRTC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ1 2021: 217 institutions
Q1 2021: 217 institutionsQ2 2021: 183 institutionsQ3 2021: 186 institutionsQ4 2021: 213 institutionsQ1 2022: 222 institutionsQ2 2022: 242 institutionsQ3 2022: 233 institutionsQ4 2022: 208 institutionsQ1 2023: 209 institutionsQ2 2023: 203 institutionsQ3 2023: 224 institutionsQ4 2023: 222 institutionsQ1 2024: 253 institutionsQ2 2024: 228 institutionsQ3 2024: 242 institutionsQ4 2024: 227 institutionsQ1 2025: 256 institutionsQ2 2025: 304 institutionsQ3 2025: 338 institutionsQ4 2025: 335 institutionsQ1 2026: 305 institutionsQ2 2026: 303 institutions
Value heldQ1 2021: $4.33B
Q1 2021: $4.33BQ2 2021: $1.93BQ3 2021: $1.64BQ4 2021: $3.43BQ1 2022: $4.78BQ2 2022: $3.28BQ3 2022: $3.81BQ4 2022: $2.92BQ1 2023: $4.18BQ2 2023: $3.47BQ3 2023: $3.12BQ4 2023: $3.53BQ1 2024: $4.00BQ2 2024: $3.82BQ3 2024: $2.55BQ4 2024: $3.09BQ1 2025: $3.77BQ2 2025: $5.44BQ3 2025: $5.97BQ4 2025: $6.24BQ1 2026: $4.19BQ2 2026: $4.24B
Institutions holding IRTC and their total value by quarter
QuarterHoldersValue
Q2 2026303$4.24B
Q1 2026305$4.19B
Q4 2025335$6.24B
Q3 2025338$5.97B
Q2 2025304$5.44B
Q1 2025256$3.77B
Q4 2024227$3.09B
Q3 2024242$2.55B
Q2 2024228$3.82B
Q1 2024253$4.00B
Q4 2023222$3.53B
Q3 2023224$3.12B
Q2 2023203$3.47B
Q1 2023209$4.18B
Q4 2022208$2.92B
Q3 2022233$3.81B
Q2 2022242$3.28B
Q1 2022222$4.78B
Q4 2021213$3.43B
Q3 2021186$1.64B
Q2 2021183$1.93B
Q1 2021217$4.33B

Institutions, Q1 2021

Shares, value and share of portfolio for each institution holding iRhythm Holdings, Inc..

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.

Institutions holding IRTC in Q1 2021
InstitutionSharesValue% of portfolioChange in sharesAction
Winton Group Ltd7,230$1.00M0.06%––
Mitsubishi UFJ Kokusai Asset Management Co., Ltd.7,288$1.01M0.01%––
UBS Group AG7,596$1.05M0.00%––
Aigen Investment Management, LP7,626$1.06M0.14%––
Skandinaviska Enskilda Banken AB (publ)7,658$1.06M0.01%––
CIBC Private Wealth Group, LLC7,694$1.07M0.00%––
ProShare Advisors LLC7,722$1.07M0.00%––
Metropolitan Life Insurance Co7,762$1.08M0.02%––
Banque Pictet & Cie SA8,181$1.14M0.01%––
Arizona State Retirement System8,405$1.17M0.01%––
Neuberger Berman Group LLC8,688$1.17M0.00%––
Citigroup Inc8,537$1.19M0.00%––
GAM Holding AG8,903$1.24M0.06%––
AQR Capital Management LLC9,035$1.25M0.00%––
Caption Management, LLC9,500$1.32M0.17%––
Engineers Gate Manager LP9,609$1.33M0.07%––
Brinker Capital Investments, LLC10,020$1.39M0.02%––
Connor, Clark & Lunn Investment Management Ltd.10,266$1.43M0.01%––
Envestnet Asset Management Inc10,553$1.47M0.00%––
MetLife Investment Management10,573$1.47M0.01%––
NN Investment Partners Holdings N.V.10,600$1.47M0.01%––
State Board of Administration of Florida Retirement System11,093$1.54M0.00%––
Harel Insurance Investments & Financial Services Ltd.5,108$1.54M0.03%––
Group One Trading, L.P.11,801$1.64M0.04%––
Principal Financial Group Inc12,320$1.71M0.00%––
Jefferies Group LLC14,319$1.99M0.05%––
Jump Financial, LLC14,800$2.06M0.19%––
Royal Bank of Canada15,137$2.10M0.00%––
Marshall Wace North America L.P.15,385$2.14M0.01%––
Manufacturers Life Insurance Company, The16,182$2.25M0.00%––
Capital Fund Management S.A.16,806$2.33M0.08%––
American International Group, Inc.16,840$2.34M0.01%––
First Trust Advisors LP16,899$2.35M0.00%––
State of New Jersey Common Pension Fund D18,115$2.52M0.01%––
Qube Research & Technologies Ltd18,268$2.54M0.04%––
Dimensional Fund Advisors LP18,921$2.63M0.00%––
EULAV Asset Management20,300$2.82M0.08%––
Exchange Traded Concepts, LLC20,432$2.84M0.11%––
Landscape Capital Management, L.L.C.22,058$3.06M0.48%––
Parametric Portfolio Associates LLC22,379$3.11M0.00%––
Holocene Advisors, LP26,610$3.69M0.02%––
Mutual of America Capital Management LLC29,702$4.12M0.04%––
Marshall Wace, LLP30,306$4.21M0.02%––
BNP Paribas Arbitrage, SA30,338$4.21M0.01%––
Motley Fool Asset Management LLC30,404$4.22M0.30%––
Two Sigma Investments, LP30,493$4.23M0.01%––
SEI Investments Co28,036$4.60M0.01%––
Barclays PLC33,359$4.63M0.00%––
AXA S.A.33,507$4.65M0.01%––
UBS Asset Management Americas Inc33,713$4.68M0.00%––
Rhumbline Advisers35,755$4.96M0.01%––
Sit Investment Associates Inc37,550$5.21M0.14%––
Ensign Peak Advisors, Inc41,919$5.82M0.01%––
California State Teachers Retirement System43,658$6.06M0.01%––
Thrivent Financial for Lutherans47,988$6.66M0.01%––
Lombard Odier Asset Management (Switzerland) SA50,181$6.97M0.47%––
Compagnie Lombard Odier SCmA50,181$6.97M0.15%––
Federated Hermes, Inc.52,000$7.22M0.01%––
TD Asset Management Inc55,057$7.64M0.01%––
Balyasny Asset Management LLC56,421$7.83M0.05%––
CWM, LLC125,141$8.30M0.07%––
State of Wisconsin Investment Board62,800$8.72M0.02%––
Ameriprise Financial Inc65,545$9.10M0.00%––
Cubist Systematic Strategies, LLC65,874$9.15M0.12%––
Swiss National Bank66,000$9.16M0.01%––
Squarepoint Ops LLC67,353$9.35M0.09%––
California Public Employees Retirement System67,500$9.37M0.01%––
Wellington Management Group LLP69,197$9.61M0.00%––
C WorldWide Group Holding A/S80,000$11.1M0.11%––
Alberta Investment Management Corp83,056$11.5M0.10%––
Alyeska Investment Group, L.P.85,670$11.9M0.16%––
Bellevue Group AG87,631$12.2M0.13%––
Man Group plc90,525$12.6M0.06%––
Deutsche Bank AG102,877$14.3M0.01%––
Allianz Asset Management GmbH111,945$15.5M0.02%––
Morgan Stanley117,684$16.3M0.00%––
Nuveen Asset Management, LLC125,755$17.5M0.01%––
Mirae Asset Global Investments Co., Ltd.134,828$18.7M0.06%––
Bank of America Corp139,944$19.4M0.00%––
Renaissance Technologies LLC142,500$19.8M0.02%––
Stephens Investment Management Group LLC179,670$24.9M0.36%––
Legal & General Group Plc181,571$25.2M0.01%––
Vident Investment Advisory, LLC183,646$25.5M0.86%––
Citadel Advisors LLC184,409$25.6M0.03%––
Voloridge Investment Management, LLC195,989$27.2M0.20%––
Goldman Sachs Group Inc200,166$27.8M0.01%––
Voya Investment Management LLC202,836$28.2M0.06%––
Victory Capital Management Inc251,709$35.0M0.04%––
Bank of New York Mellon Corp260,366$36.2M0.01%––
FMR LLC265,189$36.8M0.00%––
Charles Schwab Investment Management Inc269,793$37.5M0.01%––
Franklin Resources Inc273,634$38.0M0.02%––
Norges Bank278,496$38.7M0.01%––
Northern Trust Corp314,205$43.6M0.01%––
BNP PARIBAS ASSET MANAGEMENT Holding S.A.357,833$49.7M0.20%––
Clearbridge Investments, LLC369,050$51.2M0.04%––
Fiera Capital Corp384,933$53.5M0.15%––
Bessemer Group Inc386,934$53.7M0.13%––
Gilder Gagnon Howe & Co LLC393,571$54.7M0.29%––
Rock Springs Capital Management LP432,496$60.1M1.31%––