13F

Stock

Irhythm Technologies Inc

Ticker not mapped · held by 302 managers

Reported value

$4.16B

Holders

302

+37 new · −70 exited

Holders’ est. mark

−$1.39B

Price effect on 216 books still in the name

Largest holder

$323.6M

BlackRock, Inc.

Notable conviction

Share of each notable manager’s 13F book.

Holder count by quarter

Who holds it

Notable only
InvestorSharesValueEst. markChange
BlackRock, Inc.2.74M$323.6M−$162.9MCut−$175.8M
VANGUARD PORTFOLIO MANAGEMENT LLC1.8M$212MHeld
RTW INVESTMENTS, LP1.67M$196.9M−$70.2MCut−$12.8M
MILLENNIUM MANAGEMENT LLC1.61M$189.8M−$49.1MAdded$43.1M
Artisan Partners Limited Partnership1.45M$171.2M−$86.2MCut−$97.1M
VANGUARD CAPITAL MANAGEMENT LLC1.45M$170.6MHeld
Fidelity1.36M$160.7M−$37.4MAdded$49.2M
Holocene Advisors, LP1.25M$147.4M−$40.6MAdded$26.1M
UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC1.05M$123.6M−$49.3MCut−$23.6M
GEODE CAPITAL MANAGEMENT, LLC817.1K$96.5M−$48.6MCut−$55.9M
State Street788.3K$93M−$45.4MCut−$42.7M
BNP PARIBAS ASSET MANAGEMENT Holding S.A.762.1K$89.9M$68.7MAdded$89.8M
EVENTIDE ASSET MANAGEMENT, LLC760.8K$89.8M−$41.2MCut−$33.1M
JPMORGAN CHASE & CO714.9K$81.6M−$45.2MCut−$53M
FULLER & THALER ASSET MANAGEMENT, INC.674.7K$79.6M−$38MCut−$33.8M
BLAIR WILLIAM & CO/IL628.4K$74.2M−$37.3MCut−$53.4M
BRAIDWELL LP610.2K$72M−$12.9MAdded$33.4M
Point72 Asset Management, L.P.599.4K$70.7M−$13MAdded$31.8M
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP582.9K$68.8M−$34.6MCut−$38.9M
Stephens Investment Management Group LLC561.5K$66.3M−$30.9MCut−$25.9M
D. E. Shaw & Co., Inc.554.3K$65.4M−$21.4MAdded$1.42M
Capital Research Global Investors509.6K$60.1M−$30.3MCut−$150.1M
Allspring Global Investments Holdings, LLC467.1K$55.2M−$23.2MCut−$16.2M
BANK OF AMERICA CORP /DE/432.5K$51M−$21.1MCut−$11.9M
Polar Capital Holdings Plc421.6K$49.8M−$18.3MCut−$4.91M
MANUFACTURERS LIFE INSURANCE COMPANY, THE390.6K$46.1M−$11.7MAdded$11.3M
MACKENZIE FINANCIAL CORP371.5K$43.8M−$20.9MCut−$18.1M
LOOMIS SAYLES & CO L P367.9K$43.4M−$21.9MCut−$26.2M
GOLDMAN SACHS GROUP INC348.6K$41.1M−$19.6MCut−$17.3M
Ophir Asset Management Pty Ltd335.8K$39.6M−$7.59MAdded$17M
Invesco Ltd.297.5K$35.1M−$17.7MCut−$53.3M
NORTHERN TRUST CORP285.1K$33.6M−$16.6MCut−$15.9M
CHARLES SCHWAB INVESTMENT MANAGEMENT INC281.9K$33.3M−$16.8MCut−$17.5M
FRED ALGER MANAGEMENT, LLC280K$33.1M−$16.6MCut−$22.1M
Assenagon Asset Management S.A.270.2K$31.9M−$13.4MCut−$8.07M
Rock Springs Capital Management LP261.8K$30.9M−$14MCut−$10.8M
SCHRODER INVESTMENT MANAGEMENT GROUP247.7K$28.3M−$10.4MCut−$642.7K
MORGAN STANLEY237.8K$28.1M−$10.1MCut−$2.1M
AMERIPRISE FINANCIAL INC236.8K$27.9M−$7.35MAdded$6.01M
CITIGROUP INC232.1K$27.4M−$11.3MCut−$6.38M
Qube Research & Technologies Ltd226.9K$26.8M−$8.59MAdded$1.12M
VANGUARD FIDUCIARY TRUST CO223.7K$26.4MHeld
DEUTSCHE BANK AG\215.8K$25.5M−$11.2MCut−$7.83M
SEI INVESTMENTS CO198.9K$23.5M−$11.8MCut−$12.6M
Balyasny Asset Management L.P.194.4K$22.9M−$9.94MCut−$6.73M
BARCLAYS PLC188.3K$22.2M−$11.2MCut−$12.2M
BAMCO INC /NY/183.9K$21.7MNew
NEXT CENTURY GROWTH INVESTORS LLC169.3K$20M−$10.1MCut−$10.7M
First Light Asset Management, LLC168.1K$19.8M−$9.14MCut−$7.46M
MASSACHUSETTS FINANCIAL SERVICES CO /MA/166.6K$19.7M−$8.93MCut−$7M
OBERWEIS ASSET MANAGEMENT INC/156K$18.4M−$7.11MCut−$2.83M
FEDERATED HERMES, INC.149.5K$17.6M−$6.32MCut−$1.24M
RAYMOND JAMES FINANCIAL INC145.1K$16.7M−$9.18MCut−$10.7M
JENNISON ASSOCIATES LLC137K$16.2M−$8.14MCut−$8.5M
FRANKLIN RESOURCES INC121.6K$14.3M−$7.05MCut−$6.69M
Citadel113.6K$13.4MNew
JANE STREET GROUP, LLC112.9K$13.3M−$6.71MCut−$20.8M
Nuveen, LLC111.7K$13.2M−$6.64MCut−$10.5M
Trexquant Investment LP111.3K$13.1M−$4.67MCut−$819.3K
Bank of New York Mellon Corp107.8K$12.7M−$6.4MCut−$7.17M
PERCEPTIVE ADVISORS LLC105K$12.4M−$6.24MCut−$6.77M
WCM INVESTMENT MANAGEMENT, LLC108.1K$12.3M−$4.72MCut−$744.2K
NEW YORK STATE COMMON RETIREMENT FUND102.6K$12.1M−$6.1MCut−$10.9M
SEGALL BRYANT & HAMILL, LLC99.8K$11.8M−$5.93MCut−$8.04M
Granahan Investment Management, LLC96K$11.3M−$854.3KAdded$8.78M
UBS Group AG91.9K$10.8M−$5.46MCut−$16.3M
TimesSquare Capital Management, LLC90.7K$10.7M−$3.55MAdded$83.9K
WELLINGTON MANAGEMENT GROUP LLP90.5K$10.7M−$5.38MCut−$61.8M
Man Group plc88.2K$10.4M−$3.34MAdded$438.1K
Schonfeld Strategic Advisors LLC88.1K$10.4M−$668.9KAdded$8.4M
M&G PLC85.1K$10M−$4.96MCut−$4.86M
Susquehanna Portfolio Strategies, LLC76K$8.96MNew
FRONTIER CAPITAL MANAGEMENT CO LLC68.5K$8.08M−$4.07MCut−$4.53M
PEREGRINE CAPITAL MANAGEMENT LLC65.9K$7.77M−$3.38MCut−$2.32M
Swiss National Bank63.7K$7.52M−$3.77MCut−$3.73M
SILVERCREST ASSET MANAGEMENT GROUP LLC61.7K$7.28M−$2.85MCut−$1.22M
CANADA PENSION PLAN INVESTMENT BOARD58.8K$6.94M−$1.79MAdded$1.6M
ALLIANCEBERNSTEIN L.P.36.3K$6.44M$1Cut−$211.2K
Renaissance Technologies53.8K$6.35M−$3.2MCut−$12.1M
PRINCIPAL FINANCIAL GROUP INC53.5K$6.31M−$3.18MCut−$6.01M
Atle Fund Management AB22.3K$6.26M$2.3MCut−$408.4K
TWO SIGMA INVESTMENTS, LP52.6K$6.21MNew
Legal & General Group Plc51.6K$6.09M−$3.06MCut−$3.15M
Amundi49.6K$5.85M−$1.99MCut−$77.4K
Engineers Gate Manager LP49.3K$5.81M−$2.93MCut−$7.87M
STATE OF WISCONSIN INVESTMENT BOARD48K$5.67M−$2.86MCut−$3.41M
FIRST TRUST ADVISORS LP47.6K$5.62M−$2.83MCut−$5.17M
Jump Financial, LLC45K$5.31M−$1.22MAdded$1.67M
Connor, Clark & Lunn Investment Management Ltd.42.3K$5M−$2.5MCut−$2.48M
Campbell & CO Investment Adviser LLC40.8K$4.82MNew
Parkman Healthcare Partners LLC40.1K$4.74MNew
RHUMBLINE ADVISERS39.4K$4.65M−$2.34MCut−$2.55M
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM37.3K$4.4M−$1.82MCut−$1.02M
Hillsdale Investment Management Inc.35K$4.12M−$2.02MCut−$1.92M
SIRIOS CAPITAL MANAGEMENT L P34.7K$4.1MNew
Icahn Capital34.6K$4.08M−$2.06MCut−$3.04M
Verition Fund Management LLC34.6K$4.08M−$1.16MAdded$601.5K
ENVESTNET ASSET MANAGEMENT INC32.1K$3.79M−$1.38MCut−$324.8K
KCM Capital Inc30K$3.54M−$1.78MCut−$3.02M
Ensign Peak Advisors, Inc30K$3.54M−$1.78MCut−$2.49M
EFG International AG29.5K$3.48M−$1.58MCut−$1.25M
HUSSMAN STRATEGIC ADVISORS, INC.29.4K$3.47M−$873.5KAdded$861.4K
VANGUARD ASSET MANAGEMENT, Ltd28.6K$3.38MHeld
CASTLEARK MANAGEMENT LLC27.2K$3.21M−$1.62MCut−$5.7M
WELLS FARGO & COMPANY/MN26.9K$3.17M−$1.6MCut−$4.86M
BANQUE PICTET & CIE SA24.8K$2.93M−$1.47MCut−$1.88M
SUSQUEHANNA INTERNATIONAL GROUP, LLP24.2K$2.85M−$282.8KAdded$2.01M
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.23.3K$2.75M−$1.38MCut−$1.83M
VICTORY CAPITAL MANAGEMENT INC22.2K$2.62M−$1.32MCut−$5.05M
Kampmann Melissa S.22K$2.6M−$1MCut−$1.1M
NOMURA ASSET MANAGEMENT INTERNATIONAL INC.21.2K$2.51M−$1.26MCut−$4.55M
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLC21.1K$2.49M−$1.25MCut−$1.26M
BNP PARIBAS FINANCIAL MARKETS20K$2.36M−$1.19MCut−$10.7M
XTX Topco Ltd19.5K$2.31M−$286.2KAdded$1.45M
One Capital Management, LLC18.9K$2.23M−$878KCut−$393.3K
Future Fund LLC18.9K$2.23M−$878KCut−$394K
Quantinno Capital Management LP18.6K$2.2M−$86.9KAdded$1.94M
TRILLIUM ASSET MANAGEMENT, LLC16.7K$2.14MNew
MetLife Investment Management, LLC17.4K$2.06M−$1.04MCut−$1.11M
PRUDENTIAL FINANCIAL INC17.1K$2.02M−$1.02MCut−$5.15M
Brevan Howard Capital Management LP16.8K$1.98M−$295.6KAdded$1.1M
CONGRESS ASSET MANAGEMENT CO16.5K$1.94MNew
Russell Investments Group, Ltd.16.1K$1.9M−$955.7KCut−$3.43M
Creative Planning15.8K$1.87M−$840.8KCut−$641.2K
FIFTH THIRD BANCORP15.5K$1.82M−$5.35KAdded$1.81M
Universal- Beteiligungs- und Servicegesellschaft mbH15.4K$1.82M−$916.8KCut−$5.02M
Corient Private Wealth LLC15.3K$1.81M−$105.2KAdded$1.5M
State of New Jersey Common Pension Fund D14.2K$1.67M−$755.3KCut−$585K
JANUS HENDERSON GROUP PLC13.9K$1.64M−$822.4KCut−$822.4K
LANDSCAPE CAPITAL MANAGEMENT, L.L.C.13.6K$1.61MNew
Homestead Advisers Corp13.3K$1.57M−$790.3KCut−$3.29M
Vanguard Global Advisers, LLC13.2K$1.55MHeld
ROYAL BANK OF CANADA11.7K$1.38M−$697.9KCut−$743K
Zurcher Kantonalbank (Zurich Cantonalbank)11.4K$1.34M−$537.7KCut−$261.6K
B. Metzler seel. Sohn & Co. AG11.1K$1.31M−$660.7KCut−$660.7K
Entropy Technologies, LP10.7K$1.26M−$397.5KAdded$70.3K
ABN AMRO INVESTMENT SOLUTIONS10.1K$1.2M−$602.5KCut−$613.5K
INTECH INVESTMENT MANAGEMENT LLC10.1K$1.19M−$600.4KCut−$1.51M
Prosight Management, LP10K$1.18MNew
Ascent Group, LLC9.31K$1.1M−$553KCut−$602.8K
ARIZONA STATE RETIREMENT SYSTEM8.85K$1.04M−$525.9KCut−$566.1K
ALLSTATE CORP8.74K$1.03MNew
Police & Firemen's Retirement System of New Jersey8.65K$1.02M−$513.9KCut−$513.9K
STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM8.58K$1.01M−$509.7KCut−$509.7K
ADAGE CAPITAL PARTNERS GP, L.L.C.8.29K$978.3K−$492.5KCut−$21.2M
Vanguard Investments Australia, Ltd.7.99K$942.9KHeld
Cinctive Capital Management LP7.96K$939.1K−$295.6KAdded$56.5K
Hennion & Walsh Asset Management, Inc.7.9K$932.7K−$469.6KCut−$508.1K
Pinnacle Financial Partners, Inc.7.13K$841.4K−$423.6KCut−$426.4K
KLP KAPITALFORVALTNING AS7.1K$837.9K−$410KCut−$386.4K
EXCHANGE TRADED CONCEPTS, LLC6.88K$811.5K−$288.5KCut−$50.1K
CAPTRUST FINANCIAL ADVISORS6.27K$740K−$344.8KCut−$289.7K
JONES FINANCIAL COMPANIES LLLP6.23K$736.2K−$15.8KAdded$688.9K
Squarepoint Ops LLC6.16K$727.5K−$366.3KCut−$15.9M
Values First Advisors, Inc.5.94K$700.6K−$342.7KCut−$322.4K
CIBC Bancorp USA Inc.5.78K$681.8KHeld
FOX RUN MANAGEMENT, L.L.C.5.77K$658.6K−$280.3KCut−$127.9K
VOYA INVESTMENT MANAGEMENT LLC5.49K$648.2K−$326.3KCut−$1.03M
Pictet Asset Management Holding SA5.49K$648.2K−$291.9KCut−$223.4K
INCEPTIONR LLC5.42K$639.7K−$203.6KAdded$31.6K
Bridgefront Capital, LLC4.89K$577.5KNew
ProShare Advisors LLC4.74K$559.1K−$281.5KCut−$495.6K
Headlands Technologies LLC4.58K$540.6K−$272.2KCut−$645.5K
CIM INVESTMENT MANAGEMENT INC4.49K$530K−$266.9KCut−$446.2K
LPL Financial LLC3.69K$434.9K−$194.6KCut−$146.2K
Vident Advisory, LLC3.54K$417.2K−$136.2KAdded$10.5K
LOS ANGELES CAPITAL MANAGEMENT LLC3.23K$381.8K−$187.9KCut−$141.5K
Ancora Advisors LLC3.23K$381.2K−$191.9KCut−$191.9K
IMA Advisory Services, Inc.3.23K$381.2K−$191.9KCut−$191.9K
MRA Advisory Group3.21K$378.9K−$164.6KCut−$112.5K
STEPHENS INC /AR/3.08K$364.1K−$164.4KCut−$126.7K
Blueshift Asset Management, LLC3.06K$361.5KNew
TEACHER RETIREMENT SYSTEM OF TEXAS3.03K$357.4KNew
XPONANCE LLC3K$354.2K−$150.5KCut−$95.3K
Tower Research Capital LLC (TRC)3K$354.1K−$59.8KAdded$175.6K
Vanguard Personalized Indexing Management, LLC2.98K$351.3K−$146.9KCut−$87.3K
Bayforest Capital Ltd2.86K$337.4K−$169.9KCut−$176.3K
Mitsubishi UFJ Asset Management Co., Ltd.2.8K$330.2K−$157.3KCut−$151.6K
TRUIST FINANCIAL CORP2.71K$319.7K−$161KCut−$318.5K
TWO SIGMA SECURITIES, LLC2.7K$318.8KNew
Vise Technologies, Inc.1.73K$306.4K$0Held
Ameritas Investment Partners, Inc.2.59K$305.6K−$153.8KCut−$153.8K
CAPSTONE INVESTMENT ADVISORS, LLC2.54K$299.2KNew
VIRTUS ADVISERS, LLC2.2K$259.8KNew
AXQ CAPITAL, LP2.17K$256.3KNew
Swiss Life Asset Management Ltd2.14K$252.4K−$86.8KCut−$6.79K
Frank, Rimerman Advisors LLC2.04K$241.4K−$121.5KCut−$121.5K
QUADRANT CAPITAL GROUP LLC1.94K$229K−$115.3KCut−$115.3K
Allianz Asset Management GmbH1.9K$224.2K−$112.9KCut−$219.4K
KEYBANK NATIONAL ASSOCIATION/OH1.85K$218K−$109.7KCut−$126.3K
O'SHAUGHNESSY ASSET MANAGEMENT, LLC1.85K$217.9K−$109.7KCut−$337.3K
NEUBERGER BERMAN GROUP LLC1.84K$217.2K−$109.3KCut−$5.32M
OPPENHEIMER ASSET MANAGEMENT INC.1.83K$216.3K−$106.1KCut−$100.6K
SeaCrest Wealth Management, LLC1.83K$216K−$126.9KCut−$164.4K
Investors Towarzystwo Funduszy Inwestycyjnych Spolka Akcyjna1.8K$212.4K−$95.1KCut−$71.5K
DRW Securities, LLC1.75K$207.1KNew
GROUP ONE TRADING LLC1.75K$206.4KNew
China Universal Asset Management Co., Ltd.1.6K$188.8K−$11.9KAdded$153.3K
OSAIC HOLDINGS, INC.1.53K$181.1K−$91.2KCut−$111.4K
PNC Financial Services Group, Inc.1.48K$174.7K−$87.9KCut−$411.9K
Rockefeller Capital Management L.P.1.25K$148.1K−$74.6KCut−$93.4K
STRS OHIO1.2K$141.6K−$71.3KCut−$816.6K
RiverPark Advisors, LLC1.19K$140.1K−$70.5KCut−$73.4K
Federation des caisses Desjardins du Quebec1.12K$132.2K−$16.7KAdded$82.3K
NISA INVESTMENT ADVISORS, LLC1K$118.6K−$59.5KCut−$59.2K
US BANCORP \DE\981$115.8K−$58.3KCut−$66.3K
ASSETMARK, INC821$96.9K−$37.5KCut−$15.1K
Walleye Trading LLC821$96.9KNew
Kemnay Advisory Services Inc.756$89.2K−$6.3KAdded$70.4K
ANTIPODES PARTNERS Ltd655$77.3K−$11.2KAdded$43.8K
CWM, LLC576$68K$67.9KAdded$67.8K
State of Wyoming565$66.7K−$33.6KCut−$42.6K
LMR Partners LLP463$54.6KNew
EverSource Wealth Advisors, LLC382$45.1K−$18.3KCut−$9.57K
Evelyn Partners Investment Management LLP245$28.9K−$14.6KCut−$14.6K
Private Wealth Asset Management, LLC226$26.7K−$13.4KCut−$13.4K
Sterling Capital Management LLC207$24.4K−$12.3KCut−$12.3K
Smartleaf Asset Management LLC204$23.3K−$13.1KCut−$34.4K
MCF Advisors LLC196$23.1K−$11.6KCut−$11.6K
Root Financial Partners, LLC182$21.5K−$10.5KCut−$9.75K
Allworth Financial LP182$21.5K−$10.2KCut−$9.04K
SIMPLEX TRADING, LLC182$21.5KNew
North Star Investment Management Corp.170$20.1K−$10.1KCut−$10.1K
Optiver Holding B.V.162$19.1K−$8.2KCut−$5.37K
Farther Finance Advisors, LLC158$18.7K−$9.36KCut−$10.4K
Measured Wealth Private Client Group, LLC149$17.6K−$8.85KCut−$8.85K
Steward Partners Investment Advisory, LLC138$16.3K−$8.2KCut−$13.3K
SIGNATUREFD, LLC137$16.2K−$8.14KCut−$8.14K
GAMMA Investing LLC109$12.9K−$6.48KCut−$19.8K
Versant Capital Management, Inc99$11.7K−$5.88KCut−$7.3K
Larson Financial Group LLC87$10.3K−$5.17KCut−$5.7K
Pinnacle Wealth Planning Services, Inc.86$10.2K−$5.11KCut−$5.11K
TOTH FINANCIAL ADVISORY CORP85$10K−$5.05KCut−$5.05K
C WorldWide Group Holding A/S80K$9.44K−$4.75KCut−$4.75K
Thrivent Financial for Lutherans75.2K$8.87KNew
NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO72$8.5KNew
ROTHSCHILD INVESTMENT LLC61$7.2K−$3.09KCut−$2.03K
TD Waterhouse Canada Inc.60$7.09KNew
AdvisorNet Financial, Inc53$6.25K−$3.15KCut−$3.5K
Torren Management, LLC47$5.55K−$2.79KCut−$47.9K
BROWN BROTHERS HARRIMAN & CO37$4.37K−$1.37KAdded$286
PRICE T ROWE ASSOCIATES INC /MD/35.7K$4.21K−$2.12KCut−$84.9K
HUNTINGTON NATIONAL BANK33$3.89K−$1.96KCut−$2.85K
Parallel Advisors, LLC31$3.66K−$1.6KCut−$1.13K
Ares Financial Consulting, LLC25$2.96K−$1.48KCut−$1.48K
Elequin Capital, LP25$2.95K−$1.48KCut−$12.1K
Manchester Capital Management LLC23$2.71K−$1.37KCut−$1.37K
MidFirst Bank22$2.6K−$1.31KCut−$232.7K
Kilter Group LLC21$2.48K−$772Added$172
Leonteq Securities AG21$2.48K−$1.25KCut−$2.67K

Who left

Positions as of Q1 2026. 13F filings arrive up to 45 days after quarter-end and omit shorts. Values are quarter-end marks, as filed. Estimated mark is the price effect on shares still held — not realized P&L or investment advice.