IRTC · Company research
iRhythm Holdings, Inc. Common Stock (IRTC): Ownership & Institutional Holders
Reported institutional positions. Filing dates and sources matter.
RESEARCH CONTEXT
Understand the numbers
Reported institutional positions. Filing dates and sources matter. Use period, currency, units and source fields when interpreting values.
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Ownership & Institutional Holders data
Database-backed records only
| holder name | cik | period end | shares held | market value | ownership percent | shares change | shares change percent | filing date | data source |
|---|---|---|---|---|---|---|---|---|---|
| PERCEPTIVE ADVISORS LLC | 1224962 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 223766 | 26616966 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SIMPLEX TRADING, LLC | 1488542 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 450 | 53527 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| OBERWEIS ASSET MANAGEMENT INC/ | 937886 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 202004 | 24028376 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Quantbot Technologies LP | 1512991 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 229 | 27240 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| NINE MASTS CAPITAL Ltd | 1569356 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5000 | 5507500 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| SECTORAL ASSET MANAGEMENT INC | 1274413 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 26070 | 3101027 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| FRONTIER CAPITAL MANAGEMENT CO LLC | 351173 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 132475 | 15757877 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Ophir Asset Management Pty Ltd | 1844640 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 201491 | 23967354 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Lombard Odier Asset Management (Europe) Ltd | 1535784 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5828000 | 6458463 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Caitong International Asset Management Co., Ltd | 1963355 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 415 | 49364 | — | — | — | Aug 5, 2026 | SEC_13F_DATASET |
| VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1463211 | 174048948 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| ProShare Advisors LLC | 1357955 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4505 | 535869 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| B. Metzler seel. Sohn & Co. AG | 1847838 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 11119 | 1322605 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| FOX RUN MANAGEMENT, L.L.C. | 1533457 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8401 | 999299 | — | — | — | Aug 4, 2026 | SEC_13F_DATASET |
| SG Americas Securities, LLC | 1313360 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4404 | 524 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| UBS Group AG | 1610520 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 46429 | 5522730 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1913976 | 227667445 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| LPL Financial LLC | 1403438 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3579 | 425722 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| BlackRock, Inc. | 2012383 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1442825 | 171624034 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| ALGERT GLOBAL LLC | 1275218 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4413 | 524926 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Vanguard Investments Australia, Ltd. | 1550100 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8409 | 1000251 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| STEELHEAD PARTNERS LLC | 1133521 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 38122000 | 42113221 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Walleye Capital LLC | 1758720 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1000 | 118950 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| Private Wealth Asset Management, LLC | 1883006 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 226 | 26883 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Assenagon Asset Management S.A. | 1546007 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 22161 | 2636051 | — | — | — | Jul 8, 2026 | SEC_13F_DATASET |
| Entropy Technologies, LP | 1976151 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 14022 | 1667917 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| RiverPark Advisors, LLC | 1484256 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1335 | 158798 | — | — | — | Jul 24, 2026 | SEC_13F_DATASET |
| OPPENHEIMER & CO INC | 822581 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 15900 | 1891305 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC | 922127 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 20067 | 2386970 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| FMR LLC | 315066 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1024475 | 121861301 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| HARBOR INVESTMENT ADVISORY, LLC | 1468792 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 420 | 49959 | — | — | — | Jul 7, 2026 | SEC_13F_DATASET |
| GAMMA Investing LLC | 2010235 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 185 | 22006 | — | — | — | Jul 7, 2026 | SEC_13F_DATASET |
| WCM INVESTMENT MANAGEMENT, LLC | 1061186 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 107000 | 12670940 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| ADVENT CAPITAL MANAGEMENT /DE/ | 1097278 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 47419000 | 52469227 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Rockefeller Capital Management L.P. | 1739439 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1140 | 135603 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Keating Financial Advisory Services, Inc. | 2103443 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 12 | 1427 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Raiffeisen Bank International AG | 2044885 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 680 | 80887 | — | — | — | Aug 3, 2026 | SEC_13F_DATASET |
| MERCER GLOBAL ADVISORS INC /ADV | 853758 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1077 | 128109 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| USS Investment Management Ltd | 1587381 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 106957 | 12725744 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| Global Retirement Partners, LLC | 1749744 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4 | 476 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| EVENTIDE ASSET MANAGEMENT, LLC | 1442891 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 880338 | 104712437 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| BAMCO INC /NY/ | 1017918 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 181430 | 21581098 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Vanguard Personalized Indexing Management, LLC | 1767306 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3088 | 367318 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| TEACHER RETIREMENT SYSTEM OF TEXAS | 796848 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1970 | 234331 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Headlands Technologies LLC | 1570271 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 4886 | 581190 | — | — | — | Aug 13, 2026 | SEC_13F_DATASET |
| Larson Financial Group LLC | 1731061 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 87 | 10349 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| SBI Securities Co., Ltd. | 1851815 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 10 | 1190 | — | — | — | Jul 23, 2026 | SEC_13F_DATASET |
| Jain Global LLC | 2024579 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 13314 | 1583700 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Point72 Asset Management, L.P. | 1603466 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 273162 | 32492620 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| WESTFIELD CAPITAL MANAGEMENT CO LP | 1177719 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 288924 | 34367510 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| CITADEL ADVISORS LLC | 1423053 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 31580000 | 34892666 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| PRUDENTIAL FINANCIAL INC | 1137774 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7207 | 857273 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| STRS OHIO | 820478 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 900 | 107055 | — | — | — | Jul 30, 2026 | SEC_13F_DATASET |
| SJS Investment Consulting Inc. | 1894302 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 31 | 3688 | — | — | — | Jul 22, 2026 | SEC_13F_DATASET |
| Principia Wealth Advisory, LLC | 2041436 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2 | 238 | — | — | — | Aug 26, 2026 | SEC_13F_DATASET |
| PUBLIC EMPLOYEES RETIREMENT ASSOCIATION OF COLORADO | 315297 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3405 | 405 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| JPMORGAN CHASE & CO | 19617 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 85344 | 10106436 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| ROYAL BANK OF CANADA | 1000275 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 14581 | 1734000 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| INTECH INVESTMENT MANAGEMENT LLC | 1086318 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8414 | 1000845 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| FIDUCIARY FINANCIAL ADVISORS | 2116119 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 7 | 714 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MCF Advisors LLC | 1602905 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 227 | 27002 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| AQR CAPITAL MANAGEMENT LLC | 1167557 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 17497 | 2081268 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| MacKay Shields LLC | 61227 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 29518000 | 32514077 | — | — | — | Jul 28, 2026 | SEC_13F_DATASET |
| HARBOUR INVESTMENTS, INC. | 810121 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 18 | 2090 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Essential Partners LLC | 2136442 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3 | 357 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| FULLER & THALER ASSET MANAGEMENT, INC. | 1082327 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 685496 | 81539751 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| MetLife Investment Management, LLC | 1529735 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 19281 | 2293475 | — | — | — | Aug 14, 2026 | SEC_13F_DATASET |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 2057170 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 12620000 | 14004414 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| VIRGINIA RETIREMENT SYSTEMS ET Al | 1005354 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 8150 | 969443 | — | — | — | Aug 25, 2026 | SEC_13F_DATASET |
| CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 5241770 | 44067 | — | — | — | Aug 24, 2026 | SEC_13F_DATASET |
| Kampmann Melissa S. | 1999898 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 19125 | 2274919 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| Mitsubishi UFJ Trust & Banking Corp | 1462160 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 3571 | 424770 | — | — | — | Aug 6, 2026 | SEC_13F_DATASET |
| PEREGRINE CAPITAL MANAGEMENT LLC | 764529 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 75724 | 9007370 | — | — | — | Jul 17, 2026 | SEC_13F_DATASET |
| RHUMBLINE ADVISERS | 1115418 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 42028 | 4999218 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| Rakuten Securities, Inc. | 2009539 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1 | 119 | — | — | — | Aug 12, 2026 | SEC_13F_DATASET |
| NISA INVESTMENT ADVISORS, LLC | 937615 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 1004 | 119426 | — | — | — | Aug 10, 2026 | SEC_13F_DATASET |
| Allworth Financial LP | 1555170 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 152 | 18081 | — | — | — | Aug 11, 2026 | SEC_13F_DATASET |
| NEW YORK STATE COMMON RETIREMENT FUND | 810265 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 92993 | 11061517 | — | — | — | Jul 29, 2026 | SEC_13F_DATASET |
| Evelyn Partners Group Ltd | 2146944 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 245 | 29143 | — | — | — | Aug 7, 2026 | SEC_13F_DATASET |
| DHJJ Financial Advisors, Ltd. | 1844716 | Tue Jun 30 2026 00:00:00 GMT+0000 (Coordinated Universal Time) | 2 | 238 | — | — | — | Jul 24, 2026 | SEC_13F_DATASET |
Informational research only, not financial advice. Forecasts are uncertain and can be wrong.