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Disclosery

IRTC IRHYTHM HOLDINGS INC

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Stock (common), issuer CIK 1388658

253 managers (257 13F filers) reported a position in IRTC shares at 2025-03-31, 35,983,396 shares in all. 52 filers opened a position and 22 filers sold out during the quarter.

Managers
253
13F filers
257
New
52
Added
80
Reduced
83
Sold out
22
Shares held by filers
35,983,396

Shares held by filers adds up every 13F filer's report, so a share reported by a parent and by its subsidiary counts twice (H9). Managers counts each filer group once.

13D and 13G filers

No 13D or 13G on this security in the data. Structured 13D/G data starts 2024-12-18.

Insider trades

No Form 4 transaction on this security in the data.

13F holders, Q1 2025

Filers in the available 13F reports with a share position at 2025-03-31, filer groups collapsed to one row (method), largest first. Options and principal amounts are left out. A group row states no % of portfolio, since each member reports its own portfolio: the members' percents are listed under it. A value about 1,000 times or 1/1,000 of the price other filers imply is shown as filed but neither ranks the row nor enters a sum.

HolderSharesValue% of portfolioChangeSource
VANGUARD GROUP INCgroup of 2 filers holding3,110,311$326M-26,059Timeline
SANDS CAPITAL MANAGEMENT, LLC3,016,207$316M1.07%-160,49513F-HRTimeline
Artisan Partners Limited Partnership2,814,280$295M0.48%+51,54613F-HRTimeline
BlackRock, Inc.in group BlackRock, Inc.2,703,345$283M0.01%-25,51113F-HRTimelineGroup
Capital Research Global Investorsin group Capital Research Global Inves…2,202,622$231M0.05%+565,59613F-HRTimelineGroup
MACKENZIE FINANCIAL CORP1,155,954$121M0.17%-225,98813F-HRTimeline
UBS Group AGgroup of 2 filers holding1,086,190$114M+580,772Timeline
STATE STREET CORPin group STATE STREET CORP917,688$96.1M<0.01%-31,09313F-HRTimelineGroup
BNP PARIBAS ASSET MANAGEMENT Holding S.…in group BNP PARIBAS ASSET MANAGEMENT …879,816$92.1M0.25%-20,30013F-HRTimelineGroup
Champlain Investment Partners, LLC822,791$86.1M0.62%+96,52913F-HRTimeline
BLAIR WILLIAM & CO/IL789,999$82.7M0.25%+185,26213F-HRTimeline
GEODE CAPITAL MANAGEMENT, LLCin group GEODE CAPITAL MANAGEMENT, LLC750,369$78.6M0.01%+18,90213F-HRTimelineGroup
EVENTIDE ASSET MANAGEMENT, LLC740,062$77.5M1.54%+65213F-HRTimeline
WESTFIELD CAPITAL MANAGEMENT CO LP617,078$64.6M0.31%-148,17513F-HRTimeline
BESSEMER GROUP INCin group BESSEMER GROUP INC574,053$60.1M0.11%+6,04613F-HRTimelineGroup
JPMORGAN CHASE & COin group JPMORGAN CHASE & CO562,514$58.9M<0.01%-144,29213F-HRTimelineGroup
BRAIDWELL LP556,391$58.2M2.05%-149,00013F-HRTimeline
Allspring Global Investments Holdings, …in group Allspring Global Investments …518,618$55.4M0.1%-51,43013F-HRTimelineGroup
Stephens Investment Management Group LLCgroup of 2 filers holding522,704$54.7M+19,779Timeline
FULLER & THALER ASSET MANAGEMENT, INC.518,240$54.2M0.21%new13F-HRTimeline
FMR LLCin group FMR LLC463,223$48.5M<0.01%-12,18213F-HRTimelineGroup
GOLDMAN SACHS GROUP INCin group GOLDMAN SACHS GROUP INC433,780$45.4M0.01%+108,94113F-HR/ATimelineGroup
Point72 Asset Management, L.P.in group Point72 Asset Management, L.P.420,303$44M0.12%new13F-HR/ATimelineGroup
MILLENNIUM MANAGEMENT LLCin group MILLENNIUM MANAGEMENT LLC399,746$41.8M0.04%+339,52913F-HRTimelineGroup
Ophir Asset Management Pty Ltd377,682$39.5M6.91%-49,72013F-HRTimeline
BANK OF AMERICA CORP /DE/in group BANK OF AMERICA CORP /DE/371,920$38.9M<0.01%+119,45213F-HRTimelineGroup
Slate Path Capital LP365,400$38.3M0.69%-145,10013F-HRTimeline
Bank of New York Mellon Corpin group Bank of New York Mellon Corp357,501$37.4M0.01%-133,98413F-HRTimelineGroup
First Light Asset Management, LLC325,046$34M3.89%-105,45413F-HRTimeline
SCHRODER INVESTMENT MANAGEMENT GROUP314,690$33M0.03%+6,35213F-HRTimeline
SEI INVESTMENTS COin group SEI INVESTMENTS CO312,762$32.7M0.04%-5,89113F-HR/ATimelineGroup
NORTHERN TRUST CORPin group NORTHERN TRUST CORP292,009$30.6M<0.01%+4,67513F-HRTimelineGroup
JENNISON ASSOCIATES LLC280,187$29.3M0.02%new13F-HRTimeline
LORD, ABBETT & CO. LLC258,628$27.1M0.1%new13F-HRTimeline
CHARLES SCHWAB INVESTMENT MANAGEMENT INCin group Charles Schwab Trust Co254,579$26.6M<0.01%-4,91513F-HR/ATimelineGroup
Rock Springs Capital Management LP254,300$26.6M1.52%-143,20013F-HRTimeline
FRED ALGER MANAGEMENT, LLCin group FRED ALGER MANAGEMENT, LLC249,714$26.1M0.15%-23,05913F-HRTimelineGroup
MORGAN STANLEYin group MORGAN STANLEY232,669$24.4M<0.01%-19,09513F-HRTimelineGroup
FRONTIER CAPITAL MANAGEMENT CO LLC224,910$23.5M0.26%-130,23713F-HRTimeline
NEXT CENTURY GROWTH INVESTORS LLC208,220$21.8M1.94%new13F-HRTimeline
DEUTSCHE BANK AG\in group DEUTSCHE BANK AG\204,915$21.5M0.01%-3013F-HRTimelineGroup
BARCLAYS PLCin group BARCLAYS PLC200,482$21M0.01%-15,02913F-HR/ATimelineGroup
MANUFACTURERS LIFE INSURANCE COMPANY, T…in group MANUFACTURERS LIFE INSURANCE …196,358$20.6M0.02%+43913F-HRTimelineGroup
CITIGROUP INCin group CITIGROUP INC185,142$19.4M0.01%-5,05613F-HRTimelineGroup
Verition Fund Management LLC166,472$17.4M0.1%new13F-HRTimeline
WELLINGTON MANAGEMENT GROUP LLPin group WELLINGTON MANAGEMENT GROUP L…165,642$17.3M<0.01%-68,19813F-HRTimelineGroup
NEW YORK STATE COMMON RETIREMENT FUND160,886$16.8M0.02%+33,30713F-HR/ATimeline
Alberta Investment Management Corp145,166$15.2M0.1%013F-HRTimeline
WCM INVESTMENT MANAGEMENT, LLC138,437$14.5M0.04%+23513F-HRTimeline
Freestone Grove Partners LP136,972$14.3M0.15%+120,26013F-HRTimeline
SEGALL BRYANT & HAMILL, LLC130,748$13.7M0.21%-8,64313F-HRTimeline
RAYMOND JAMES FINANCIAL INCin group RAYMOND JAMES FINANCIAL INC110,126$11.5M<0.01%+8,63913F-HRTimelineGroup
ADAGE CAPITAL PARTNERS GP, L.L.C.in group ADAGE CAPITAL PARTNERS GP, L.…100,000$10.5M0.02%013F-HRTimelineGroup
SUSQUEHANNA INTERNATIONAL GROUP, LLPgroup of 2 filers holding97,522$10.2M+29,436Timeline
Amundiin group Amundi95,854$10.2M<0.01%-7,05413F-HRTimelineGroup
SILVERCREST ASSET MANAGEMENT GROUP LLC94,881$9.93M0.07%-24813F-HRTimeline
Nuveen, LLCin group TIAA92,729$9.71M<0.01%13F-HRTimelineGroup
PEREGRINE CAPITAL MANAGEMENT LLC83,055$8.69M0.29%-16,09813F-HRTimeline
C WorldWide Group Holding A/Sin group C WorldWide Group Holding A/S80,000$8.37M0.1%013F-HRTimelineGroup
STATE OF WISCONSIN INVESTMENT BOARD75,040$7.86M0.02%+62413F-HRTimeline
Point72 (DIFC) Ltd72,129$7.55M0.73%new13F-HRTimeline
AMERIPRISE FINANCIAL INCin group AMERIPRISE FINANCIAL INC68,677$7.19M<0.01%-2,57713F-HRTimelineGroup
COMERICA BANK62,228$6.51M0.03%-11,98213F-HRTimeline
Swiss National Bank60,700$6.35M<0.01%-70013F-HRTimeline
Redmile Group, LLCin group Redmile Group, LLC56,844$5.95M0.56%new13F-HRTimelineGroup
MACQUARIE GROUP LTDin group MACQUARIE GROUP LTD54,917$5.75M0.01%+24,52013F-HR/ATimelineGroup
Engineers Gate Manager LP54,576$5.71M0.1%-7,36813F-HRTimeline
HARBOR CAPITAL ADVISORS, INC.54,233$5.68M0.26%-30,71413F-HRTimeline
PRINCIPAL FINANCIAL GROUP INCin group PRINCIPAL FINANCIAL GROUP INC50,449$5.28M<0.01%+47,78513F-HRTimelineGroup
Polar Capital Holdings Plcin group Polar Capital Holdings Plc49,773$5.21M0.03%013F-HRTimelineGroup
CASTLEARK MANAGEMENT LLC48,290$5.05M0.18%new13F-HRTimeline
BANQUE PICTET & CIE SA46,545$4.87M0.05%-12,71913F-HRTimeline
RHUMBLINE ADVISERS45,946$4.81M<0.01%+2,99513F-HR/ATimeline
JANE STREET GROUP, LLCin group JANE STREET GROUP, LLC45,753$4.79M0.01%+16,30913F-HR/ATimelineGroup
Cubist Systematic Strategies, LLC43,717$4.58M0.06%new13F-HRTimeline
Legal & General Group Plcin group Legal & General Group Plc42,911$4.49M<0.01%-2,01513F-HRTimelineGroup
Cinctive Capital Management LP37,260$3.9M0.31%+29,11913F-HRTimeline
ALLIANCEBERNSTEIN L.P.36,847$3.86M<0.01%-2,87013F-HRTimeline
ENVESTNET ASSET MANAGEMENT INCin group ENVESTNET ASSET MANAGEMENT INC35,816$3.75M<0.01%+19,44713F-HRTimelineGroup
MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.in group Mirae Asset Global Investment…35,271$3.69M0.01%+92213F-HRTimelineGroup
EFG Asset Management (North America) Co…34,808$3.64M0.6%+6,37813F-HRTimeline
FIRST TRUST ADVISORS LPin group FIRST TRUST ADVISORS LP33,860$3.54M<0.01%new13F-HRTimelineGroup
Homestead Advisers Corp32,400$3.39M0.08%+4,30013F-HRTimeline
Squarepoint Ops LLCin group Squarepoint Ops LLC29,959$3.14M0.01%+7,69413F-HR/ATimelineGroup
CALIFORNIA STATE TEACHERS RETIREMENT SY…28,818$3.02M<0.01%-40013F-HRTimeline
Kampmann Melissa S.25,025$2.62M2.07%+1,10013F-HRTimeline
Fieldview Capital Management, LLC24,203$2.53M0.36%new13F-HRTimeline
WELLS FARGO & COMPANY/MNin group WELLS FARGO & COMPANY/MN23,993$2.51M<0.01%+3,02113F-HRTimelineGroup
PRICE T ROWE ASSOCIATES INC /MD/22,907$2.4M<0.01%+2,05913F-HRTimeline
Invesco Ltd.in group Invesco Ltd.22,216$2.33M<0.01%+3,01613F-HRTimelineGroup
RENAISSANCE TECHNOLOGIES LLC22,100$2.31M<0.01%new13F-HRTimeline
DLD Asset Management, LP21,960$2.3M0.33%-12,24013F-HR/ATimeline
Jefferies Financial Group Inc.in group Jefferies Financial Group Inc.21,844$2.29M0.04%new13F-HRTimelineGroup
Russell Investments Group, Ltd.in group Russell Investments Group, Lt…20,847$2.18M<0.01%-1,41813F-HRTimelineGroup
Trexquant Investment LP20,791$2.18M0.03%new13F-HRTimeline
MUTUAL OF AMERICA CAPITAL MANAGEMENT LLCin group MUTUAL OF AMERICA CAPITAL MAN…20,727$2.17M0.02%+6913F-HR/ATimelineGroup
Atle Fund Management AB20,547$2.15M0.95%new13F-HRTimeline
B. Metzler seel. Sohn & Co. AGin group B. Metzler seel. Sohn & Co. AG20,500$2.15M0.02%013F-HRTimelineGroup
MetLife Investment Management, LLCin group MetLife Investment Management…18,550$1.94M0.01%-59213F-HRTimelineGroup
Aquatic Capital Management LLC18,532$1.94M0.05%+14,36713F-HRTimeline
KENNEDY CAPITAL MANAGEMENT LLC17,759$1.86M0.04%new13F-HRTimeline
INTECH INVESTMENT MANAGEMENT LLC17,484$1.83M0.02%+2,55713F-HRTimeline
Brevan Howard Capital Management LPin group Brevan Howard Capital Managem…17,122$1.79M0.05%new13F-HRTimelineGroup
State of New Jersey Common Pension Fund…in group State of New Jersey Common Pe…16,273$1.7M0.01%-11,54213F-HRTimelineGroup
GROUP ONE TRADING LLC15,855$1.66M0.07%-4,51513F-HRTimeline
Corebridge Financial, Inc.in group Corebridge Financial, Inc.15,316$1.6M0.01%-22713F-HRTimelineGroup
Granahan Investment Management, LLC14,772$1.55M0.08%-30,95813F-HRTimeline
Holocene Advisors, LP14,747$1.54M<0.01%-71,10613F-HRTimeline
JANUS HENDERSON GROUP PLCin group Janus Henderson13,856$1.45M<0.01%013F-HRTimelineGroup
OCONNOR, A Distinct Business Unit of UB…13,506$1.41M0.03%-5,68513F-HRTimelineThe filing omitted confidential holdings, a later amendment may add them.
ALGERT GLOBAL LLC13,043$1.37M0.03%-6,60013F-HR/ATimeline
Handelsbanken Fonder AB12,639$1.32M0.01%+1,80013F-HRTimeline
Universal- Beteiligungs- und Serviceges…in group Universal- Beteiligungs- und …12,421$1.3M<0.01%new13F-HRTimelineGroup
CIM INVESTMENT MANAGEMENT INC11,530$1.12M0.26%+5,69613F-HRTimeline
WoodTrust Financial Corpin group WoodTrust Financial Corp10,675$1.12M0.16%-38213F-HRTimelineGroup
Balyasny Asset Management L.P.in group Balyasny Asset Management10,653$1.12M<0.01%-100,84913F-HRTimelineGroup
Ensign Peak Advisors, Inc10,643$1.11M<0.01%013F-HRTimeline
Semanteon Capital Management, LP10,311$1.08M0.59%new13F-HRTimeline
TRUIST FINANCIAL CORPin group TRUIST FINANCIAL CORP10,128$1.06M<0.01%-2,67113F-HRTimelineGroup
STATE BOARD OF ADMINISTRATION OF FLORID…9,087$951K<0.01%013F-HRTimeline
ABN AMRO INVESTMENT SOLUTIONSin group ABN AMRO INVESTMENT SOLUTIONS9,017$944K0.02%+3,77813F-HRTimelineGroup
ARIZONA STATE RETIREMENT SYSTEM8,959$938K0.01%-8813F-HRTimeline
DIVERSIFIED TRUST CO8,944$936K0.02%+66813F-HRTimeline
Zurcher Kantonalbank (Zurich Cantonalba…8,700$911K<0.01%+50213F-HRTimeline
Creative Planningin group Creative Planning8,542$894K<0.01%+4,46313F-HRTimelineGroup
SG Americas Securities, LLC8,427$882K<0.01%+4,11913F-HRTimeline
VOYA INVESTMENT MANAGEMENT LLCin group VOYA INVESTMENT MANAGEMENT LLC8,399$879K<0.01%-1,00813F-HR/ATimelineGroup
Ascent Group, LLCin group Ascent Group, LLC8,390$878K0.04%+28013F-HRTimelineGroup
AQR CAPITAL MANAGEMENT LLCin group AQR CAPITAL MANAGEMENT LLC8,303$869K<0.01%+2313F-HRTimelineGroup
SYNOVUS FINANCIAL CORP7,742$810K0.01%-1,05913F-HRTimeline
HighTower Advisors, LLC7,598$795K<0.01%-913F-HRTimeline
ROYAL BANK OF CANADAin group ROYAL BANK OF CANADA7,573$793K<0.01%+6,12513F-HR/ATimelineGroup
SteelPeak Wealth, LLC7,488$784K0.03%new13F-HRTimeline
Mitsubishi UFJ Asset Management Co., Lt…in group Mitsubishi UFJ Trust & Bankin…7,165$750K<0.01%-13013F-HRTimelineGroup
ProShare Advisors LLC6,953$728K<0.01%-2,03513F-HRTimeline
CIBC WORLD MARKETS CORP6,937$726K0.01%+4,01213F-HRTimeline
EXCHANGE TRADED CONCEPTS, LLC6,830$715K0.01%-1,78313F-HRTimeline
Police & Firemen's Retirement System of…6,716$703K0.01%013F-HRTimeline
Scientech Research LLC6,505$681K0.18%new13F-HRTimeline
Values First Advisors, Inc.6,203$650K0.38%+61513F-HRTimeline
KLP KAPITALFORVALTNING AS6,000$628K<0.01%-60013F-HRTimeline
NATIXISin group Natixis Investment Managers6,000$617K<0.01%013F-HR/ATimelineGroup
Petrus Trust Company, LTA5,455$571K0.05%new13F-HRTimeline
Pictet Asset Management Holding SAin group Pictet Asset Management Holdi…5,122$536K<0.01%+1,53813F-HRTimelineGroup
Yarbrough Capital, LLC4,650$487K0.02%new13F-HRTimeline
TEACHER RETIREMENT SYSTEM OF TEXAS4,575$479K<0.01%new13F-HRTimeline
HSBC HOLDINGS PLCin group HSBC HOLDINGS PLC4,590$474K<0.01%+13813F-HRTimelineGroup
Hennion & Walsh Asset Management, Inc.4,458$467K0.02%-4813F-HRTimeline
GSA CAPITAL PARTNERS LLP4,305$451K0.04%+1,90813F-HRTimeline
Bayforest Capital Ltd4,213$441K0.19%+2,54913F-HR/ATimeline
CAPTRUST FINANCIAL ADVISORS4,172$437K<0.01%+28413F-HRTimeline
PNC Financial Services Group, Inc.in group PNC Financial Services Group,…4,102$429K<0.01%-87813F-HRTimelineGroup
Ancora Advisors LLCin group Ancora Advisors LLC4,000$419K0.01%013F-HRTimelineGroup
OPPENHEIMER ASSET MANAGEMENT INC.in group OPPENHEIMER ASSET MANAGEMENT …3,989$418K0.01%-1,17313F-HRTimelineGroup
FOX RUN MANAGEMENT, L.L.C.3,850$403K0.06%+1313F-HRTimeline
Mariner, LLCin group Mariner, LLC3,758$393K<0.01%+98113F-HRTimelineGroup
VICTORY CAPITAL MANAGEMENT INC3,689$386K<0.01%-12013F-HRTimeline
CIBC Private Wealth Group LLCin group CIBC Bancorp USA Inc.3,944$382K<0.01%-6213F-HRTimelineGroup
PUBLIC EMPLOYEES RETIREMENT ASSOCIATION…3,500$366K<0.01%013F-HRTimeline
BNP PARIBAS FINANCIAL MARKETSin group BNP PARIBAS FINANCIAL MARKETS3,478$364K<0.01%-89913F-HRTimelineGroup
IMA Advisory Services, Inc.3,230$338K0.04%013F-HRTimeline
KEYBANK NATIONAL ASSOCIATION/OHin group KEYBANK NATIONAL ASSOCIATION/…3,172$332K<0.01%new13F-HRTimelineGroup
Ameritas Investment Partners, Inc.in group Ameritas Investment Partners,…3,163$331K0.01%-10813F-HRTimelineGroup
CITADEL ADVISORS LLCin group CITADEL ADVISORS LLC3,102$325K<0.01%-299,95413F-HRTimelineGroup
CANADA LIFE ASSURANCE Coin group CANADA LIFE ASSURANCE Co3,072$322K<0.01%013F-HRTimelineGroup
Graham Capital Management, L.P.2,966$310K0.01%+14313F-HRTimeline
SILVER OAK SECURITIES, INCORPORATED2,863$301K0.03%new13F-HR/ATimeline
Schonfeld Strategic Advisors LLC2,798$293K<0.01%-3,34013F-HRTimeline
LPL Financial LLC2,547$267K<0.01%-14413F-HRTimeline
CAAS CAPITAL MANAGEMENT LP2,502$262K0.12%new13F-HRTimeline
XTX Topco Ltdin group XTX Topco Ltd2,462$258K0.01%new13F-HRTimelineGroup
XPONANCE LLC2,390$250K<0.01%+13713F-HRTimeline
Vident Advisory, LLCin group Vident Advisory, LLC2,352$246K<0.01%new13F-HRTimelineGroup
PRUDENTIAL FINANCIAL INCin group PRUDENTIAL FINANCIAL INC2,275$238K<0.01%new13F-HRTimelineGroup
Bank Pictet & Cie (Europe) AG2,188$229K0.01%-1,10113F-HRTimeline
Frank, Rimerman Advisors LLC2,045$214K0.02%new13F-HRTimeline
RiverPark Advisors, LLCin group RiverPark Advisors, LLC2,040$214K0.17%new13F-HRTimelineGroup
SeaCrest Wealth Management, LLC2,030$212K0.02%new13F-HRTimeline
QUADRANT CAPITAL GROUP LLC1,940$203K0.01%+1,86513F-HRTimeline
OSAIC HOLDINGS, INC.in group OSAIC HOLDINGS, INC.1,530$160K<0.01%-15913F-HRTimelineGroup
STRS OHIO1,400$147K<0.01%+1,20013F-HRTimeline
KBC Group NVin group KBC Group NV1,337$140K<0.01%+1813F-HRTimelineGroup
Avanza Fonder AB1,137$123K<0.01%new13F-HRTimeline
AMALGAMATED BANK1,091$114K<0.01%+413F-HRTimeline
NISA INVESTMENT ADVISORS, LLC1,044$109K<0.01%+713F-HRTimeline
RICHARDS, MERRILL & PETERSON, INC.1,025$107K0.06%013F-HRTimeline
US BANCORP \DE\in group US BANCORP \DE\978$102K<0.01%+37413F-HRTimelineGroup
Tower Research Capital LLC (TRC)in group Tower Research Capital LLC (T…969$101K<0.01%-2,62713F-HRTimelineGroup
Raiffeisen Bank International AGin group Raiffeisen Bank International…680$71.2K<0.01%013F-HRTimelineGroup
Wilmington Savings Fund Society, FSB600$62.8K<0.01%-40013F-HRTimeline
VAN ECK ASSOCIATES CORPin group VAN ECK ASSOCIATES CORP554$58K<0.01%013F-HRTimelineGroup
CWM, LLCin group CWM, LLC517$54K<0.01%+18213F-HRTimelineGroup
BI Asset Management Fondsmaeglerselskab…in group BI Asset Management Fondsmaeg…476$50K<0.01%new13F-HRTimelineGroup
CANADA PENSION PLAN INVESTMENT BOARD300$31.4K<0.01%new13F-HRTimeline
AlphaQuest LLC283$29.6K<0.01%new13F-HRTimeline
Federation des caisses Desjardins du Qu…281$29.4K<0.01%013F-HRTimeline
EverSource Wealth Advisors, LLCin group EverSource Wealth Advisors, L…269$28.2K<0.01%+8513F-HRTimelineGroup
Allworth Financial LP247$25.9K<0.01%013F-HRTimeline
Evelyn Partners Investment Management L…in group Evelyn Partners Group Ltd245$25.6K<0.01%013F-HR/ATimelineGroup
MCF Advisors LLC240$25.1K<0.01%new13F-HRTimeline