SecurityIRTC / iRhythm Technologies, Inc. (450056106)
President and CEOKing Kevin M
Institutional Owners147
Institutional Shares25,103,932 - 106.37%
Institutional Value$ 1,970,998,000 USD

Institutional Stock Ownership and Shareholders()

IRTC / iRhythm Technologies, Inc. Institutional Ownership

iRhythm Technologies, Inc. (NASDAQ:IRTC) has 147 institutional investors and shareholders that have filed 13D/G or 13F forms with the Securities Exchange Commission (SEC). These institutions hold a total of 25,103,932 shares. Largest shareholders include Capital Research Global Investors, FMR LLC / Fidelity, BlackRock Inc., Franklin Resources Inc, Alliancebernstein L.p., Columbia Wanger Asset Management Llc, Vanguard Group Inc, Ameriprise Financial Inc, Redmile Group, LLC, and Wells Fargo & Company/mn.
iRhythm Technologies, Inc. (NASDAQ:IRTC) ownership structure shows current positions in the company by institutions and funds, as well as latest changes in position size. Major shareholders can include individual investors, mutual funds, hedge funds, or institutions. The Schedule 13D indicates that the investor holds more than 5% of the company and intends to actively pursue a change in business strategy. Schedule 13G indicates a passive investment of over 5%. Green rows indicate new positions. Red rows indicate closed positions. Click the link icon to see the full transaction history.

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File DateFormInvestor Opt Prev
Shares
Current
Shares
Change
(Percent)
Prev Value
($1000)
Current Value
($1000)
Change
(Percent)
2018-05-11 13F-HR Quantbot Technologies LP 8,599 284 -96.70 481 17 -96.47
2018-05-15 13F-HR Lebenthal Lisanti Capital Growth, LLC 22,170 39,120 76.45 1,243 2,463 98.15
2018-05-15 13F-HR WOLVERINE TRADING, LLC Call 4,000 0 -100.00 224 0 -100.00
2018-05-15 13F-HR TWO SIGMA INVESTMENTS LLC 14,713 35,302 139.94 825 2,222 169.33
2017-02-10 13F-HR BlackRock Institutional Trust Company, N.A. 31,456 944
2018-05-09 13F-HR TRILLIUM ASSET MANAGEMENT, LLC 18,924 0 -100.00 1,061 0 -100.00
2018-05-15 13F-HR A.R.T. Advisors, LLC 0 10,421 0 656
2018-05-15 13F-HR TWO SIGMA ADVISERS, LP 5,900 27,500 366.10 331 1,731 422.96
2018-05-09 13F-HR Bellevue Group AG 33,400 33,400 0.00 1,872 2,103 12.34
2018-05-15 13F-HR Voya Investment Management LLC 6,452 6,452 0.00 362 406 12.15
2018-05-16 13F-HR Private Capital Group, Llc 460 216 -53.04 26 14 -46.15
2018-05-15 13F-HR ELLINGTON MANAGEMENT GROUP LLC 12,100 762
2018-05-11 13F-HR CITIGROUP INC 58,485 57,675 -1.38 3,278 3,630 10.74
2018-05-14 13F-HR ALLIANCEBERNSTEIN L.P. 1,016,126 927,168 -8.75 56,954 58,365 2.48
2018-05-15 13F-HR Polar Capital LLP 322,489 20,300
2018-05-04 13F-HR Quantitative Systematic Strategies LLC 3,589 3,538 -1.42 201 223 10.95
2018-05-11 13F-HR Russell Investments Group, Ltd. 29,891 25,339 -15.23 1,655 1,595 -3.63
2018-05-15 13F-HR Advisor Group, Inc. 343 0 -100.00 19 0 -100.00
2018-05-03 13F-HR Zurcher Kantonalbank (Zurich Cantonalbank) 467 1,380 195.50 26 87 234.62
2018-05-07 13F-HR SCHWAB CHARLES INVESTMENT MANAGEMENT INC 82,208 86,928 5.74 4,608 5,473 18.77
2018-07-18 13F-HR AMALGAMATED BANK 3,640 295
2018-05-03 13F-HR Trexquant Investment LP 4,147 12,302 196.65 232 774 233.62
2018-05-15 13F-HR WADDELL & REED FINANCIAL INC 480,828 477,298 -0.73 26,950 30,046 11.49
2018-05-15 13F-HR Schonfeld Strategic Advisors LLC 8,574 27,791 224.13 480 1,750 264.58
2018-05-15 13F-HR GOLDMAN SACHS GROUP INC 123,426 169,316 37.18 6,918 10,658 54.06
2018-05-14 13F-HR Renaissance Technologies LLC 244,300 405,300 65.90 13,693 25,514 86.33
2018-05-04 13F-HR VICTORY CAPITAL MANAGEMENT INC 202,525 200,745 -0.88 11,351 12,637 11.33
2018-04-26 13F-HR SIMPLEX TRADING, LLC 357 22
2018-06-14 13F-HR/A Dynamic Technology Lab Private Ltd 8,084 509
2018-05-14 13F-HR Nuveen Asset Management, LLC 17,514 1,103
2018-07-13 13F-HR BANK OF MONTREAL /CAN/ 1,050 1,339 27.52 66 109 65.15
2017-02-10 13F-HR BlackRock Fund Advisors 227,657 6,830
2018-05-15 13F-HR SPRINGBOK CAPITAL MANAGEMENT, LLC 2,129 134
2018-05-15 13F-HR STATE STREET CORP 312,683 319,628 2.22 17,528 20,118 14.78
2018-05-09 13F-HR COLUMBUS CIRCLE INVESTORS 125,645 125,165 -0.38 7,042 7,879 11.89
2018-05-08 13F-HR Alambic Investment Management, L.P. 3,300 208
2018-05-15 13F-HR Tower Research Capital LLC (TRC) 0 1,122 0 71
2018-05-14 13F-HR Pacad Investment Ltd. 1,400 85
2018-05-04 13F-HR MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 207,225 183,769 -11.32 11,615 11,568 -0.40
2018-05-14 13F-HR PRICE T ROWE ASSOCIATES INC /MD/ 105,949 109,637 3.48 5,938 6,902 16.23
2018-05-14 13F-HR PARAMETRIC PORTFOLIO ASSOCIATES LLC 45,585 42,364 -7.07 2,555 2,667 4.38
2018-05-15 13F-HR TimesSquare Capital Management, LLC 666,620 681,120 2.18 37,364 42,877 14.75
2018-05-16 13F-HR/A GROUP ONE TRADING, L.P. 5,785 237 -95.90 324 15 -95.37
2018-05-04 13F-HR Swiss National Bank 14,800 15,800 6.76 830 995 19.88
2018-05-15 13F-HR Weiss Multi-Strategy Advisers LLC 22,000 21,200 -3.64 1,233 1,335 8.27
2018-05-07 13F-HR EATON VANCE MANAGEMENT 44,912 2,827
2018-05-21 13F-HR MASSMUTUAL TRUST CO FSB/ADV 100 100 0.00 5,605 6,295 12.31
2018-05-10 13F-HR GREAT WEST LIFE ASSURANCE CO /CAN/ 900 900 0.00 50 57 14.00
2018-05-15 13F-HR DEUTSCHE BANK AG\ 172,119 167,135 -2.90 9,645 10,520 9.07
2018-05-15 13F-HR Ameritas Investment Partners, Inc. 1,183 1,183 0.00 66 74 12.12
2018-07-11 13F-HR Xact Kapitalforvaltning AB 3,800 308
2018-05-14 13F-HR LAZARD ASSET MANAGEMENT LLC 26,475 18,675 -29.46 1,483 1,175 -20.77
2018-05-11 13F-HR Cutler Group LP 300 18
2018-05-09 13F-HR FEDERATED INVESTORS INC /PA/ 100,000 100,000 0.00 5,605 6,295 12.31
2018-05-08 13F-HR ROTHSCHILD ASSET MANAGEMENT INC 33,037 29,686 -10.14 1,852 1,869 0.92
2018-05-14 13F-HR EAM Investors, LLC 72,593 68,886 -5.11 4,069 4,336 6.56
2018-05-15 13F-HR DRIEHAUS CAPITAL MANAGEMENT LLC 246,112 261,729 6.35 13,795 16,476 19.43
2018-05-15 13F-HR Capital Research Global Investors 2,439,180 2,439,180 0.00 136,716 153,546 12.31
2018-05-11 13F-HR BNP PARIBAS ARBITRAGE, SA 3,055 2,944 -3.63 171,233 185,325 8.23
2018-05-14 13F-HR ASCEND CAPITAL, LLC 84,648 85,270 0.73 4,745 5,367 13.11
2018-05-14 13F-HR MORGAN STANLEY 60,687 57,061 -5.97 3,401 3,592 5.62
2018-05-15 13F-HR MILLENNIUM MANAGEMENT LLC 433,087 620,500 43.27 24,275 39,060 60.91
2018-05-09 13F-HR ENVESTNET ASSET MANAGEMENT INC 41 0 -100.00 3 0 -100.00
2018-05-17 13F-HR Atlantic Trust Group, LLC 2,500 2,500 0.00 140 157 12.14
2018-05-02 13F-HR RHUMBLINE ADVISERS 13,546 13,668 0.90 759 860 13.31
2018-05-14 13F-HR/A CITADEL ADVISORS LLC 594,494 167,807 -71.77 33,321 10,563 -68.30
2018-05-14 13F-HR UBS ASSET MANAGEMENT AMERICAS INC 0 3,500 0 220,325
2018-05-15 13F-HR GEODE CAPITAL MANAGEMENT, LLC 158,418 160,648 1.41 8,879 10,112 13.89
2018-04-30 13F-HR GILDER GAGNON HOWE & CO LLC 104,887 133,610 27.38 5,879 8,411 43.07
2018-05-15 13F-HR FIFTH THIRD BANCORP 118 118 0.00 7 7 0.00
2018-05-02 13F-HR WELLS FARGO & COMPANY/MN 332,324 696,746 109.66 18,627 43,860 135.46
2018-05-15 13F-HR MANUFACTURERS LIFE INSURANCE COMPANY, THE 11,173 10,823 -3.13 626 681 8.79
2018-05-15 13F-HR ADVISORY RESEARCH INC 97,548 56,348 -42.24 5,468 3,547 -35.13
2018-05-11 13F-HR MACQUARIE GROUP LTD 10,850 10,850 0.00 608 683 12.34
2018-05-10 13F-HR Employees Retirement System of Texas 26,000 26,000 0.00 1,457 1,637 12.35
2018-05-11 13F-HR CITADEL ADVISORS LLC 167,807 10,563
2018-05-17 13F-HR Legal & General Group Plc 3,390 2,527 -25.46 190 159 -16.32
2018-02-13 13F-HR COLUMBIA WANGER ASSET MANAGEMENT LLC 1,140,075 808,522 -29.08 59,147 45,318 -23.38
2018-05-15 13F-HR Ghost Tree Capital, LLC 65,000 0 -100.00 3,643 0 -100.00
2018-05-15 13F-HR Marshall Wace LLP 7,200 453
2018-05-21 13F-HR Winton Capital Group Ltd 14,071 886
2018-05-16 13F-HR/A GROUP ONE TRADING, L.P. Put 1,000 1,000 0.00 56 63 12.50
2018-07-18 13F-HR Fny Investment Advisers, Llc 40 3
2018-05-15 13F-HR BARCLAYS PLC 0 11,681 0 735
2018-05-09 13F-HR EAGLE ASSET MANAGEMENT INC 116,382 7,326
2018-07-18 13F-HR BOSTON ADVISORS LLC 3,387 3,515 3.78 213 285 33.80
2018-05-11 13F-HR OPPENHEIMER FUNDS INC 274,492 299,280 9.03 15,385 18,841 22.46
2017-02-10 13F-HR BlackRock Investment Management, LLC 25,195 756
2018-05-15 13F-HR Invesco Ltd. 30,712 1,933
2018-05-01 13F-HR WHITTIER TRUST CO 20 20 0.00 1 1 0.00
2018-05-15 13F-HR D. E. Shaw & Co., Inc. 80,114 25,262 -68.47 4,490 1,590 -64.59
2017-05-16 13F-HR JANUS CAPITAL MANAGEMENT LLC 100,359 0 -100.00 3,011 0 -100.00
2018-05-14 13F-HR NEXT CENTURY GROWTH INVESTORS LLC 390,426 310,194 -20.55 21,883 19,526 -10.77
2018-05-15 13F-HR Paloma Partners Management Co 17,298 10,175 -41.18 970 640 -34.02
2018-05-15 13F-HR WOLVERINE TRADING, LLC Put 11,400 10,700 -6.14 639 674 5.48
2018-05-14 13F-HR FMR LLC / Fidelity 2,069,810 1,896,462 -8.38 116,012 119,383 2.91
2018-07-19 13F-HR SIT INVESTMENT ASSOCIATES INC 11,300 11,300 0.00 711 917 28.97
2018-05-15 13F-HR Bank of New York Mellon Corp 756,700 654,781 -13.47 42,413 41,219 -2.82
2018-05-15 13F-HR SECTORAL ASSET MANAGEMENT INC 194,800 157,600 -19.10 10,919 9,921 -9.14
2018-05-15 13F-HR BROWN CAPITAL MANAGEMENT LLC 90,150 680,922 655.32 5,053 42,864 748.29
2018-05-15 13F-HR Parallax Volatility Advisers, L.P. 2,100 0 -100.00 118 0 -100.00
2018-05-11 13F-HR CITIGROUP INC Call 5,300 334
2018-05-08 13F-HR FIRST MERCANTILE TRUST CO 6,121 5,892 -3.74 343 371 8.16
2018-05-15 13F-HR PEAK6 Investments, L.P. 4,842 305
2017-02-10 13F-HR BlackRock Advisors LLC 97,905 2,937
2018-05-15 13F-HR SUSQUEHANNA INTERNATIONAL GROUP, LLP Put 22,400 15,300 -31.70 1,256 963 -23.33
2018-05-15 13F-HR D. E. Shaw & Co., Inc. Put 4,900 0 -100.00 275 0 -100.00
2018-05-10 13F-HR CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 13,107 49,264 275.86 735 3,101 321.90
2018-05-15 13F-HR PERCEPTIVE ADVISORS LLC 427,371 419,706 -1.79 23,954 26,420 10.29
2018-06-04 13F-HR Eam Global Investors Llc 28,419 28,419 0.00 1,593 1,789 12.30
2018-05-15 13F-HR BALYASNY ASSET MANAGEMENT LLC 48,033 70,934 47.68 2,692 4,465 65.86
2018-05-15 13F-HR SUSQUEHANNA INTERNATIONAL GROUP, LLP Call 31,700 61,500 94.01 1,777 3,871 117.84
2018-05-10 13F-HR JP Morgan Chase & Co 518,565 624,595 20.45 29,065 39,318 35.28
2018-05-11 13F-HR Mutual of America Capital Management LLC 42,297 42,297 0.00 2,371 2,663 12.32
2018-05-15 13F-HR AQR CAPITAL MANAGEMENT LLC 4,844 305
2018-05-16 13F-HR ASSETMARK, INC 29 0 -100.00 2 0 -100.00
2018-05-15 13F-HR VANGUARD GROUP INC 758,466 761,642 0.42 42,513 47,944 12.77
2018-05-10 13F-HR NEW YORK STATE COMMON RETIREMENT FUND 30,267 108,786 259.42 1,696 6,848 303.77
2018-05-15 13F-HR Point72 Asia (Hong Kong) Ltd 0 731 0 46
2018-05-10 13F-HR FRANKLIN RESOURCES INC 1,050,516 1,065,716 1.45 58,882 67,087 13.93
2018-05-15 13F-HR WOLVERINE TRADING, LLC 11,043 695
2018-05-18 13F-HR/A ROYAL BANK OF CANADA 110,215 187,888 70.47 6,178 11,827 91.44
2018-05-11 13F-HR PNC FINANCIAL SERVICES GROUP, INC. 30 385 1,183.33 2 24 1,100.00
2018-05-15 13F-HR CREDIT SUISSE AG/ 11,711 21,555 84.06 657 1,357 106.54
2018-04-20 13F-HR JENNISON ASSOCIATES LLC 96,416 112,037 16.20 5,404 7,053 30.51
2018-05-15 13F-HR UBS Group AG 10,950 9,868 -9.88 614 621 1.14
2018-05-14 13F-HR Shell Asset Management Co 15,063 15,063 0.00 844 948 12.32
2018-05-14 13F-HR Pier Capital, LLC 113,603 94,168 -17.11 6,367 5,928 -6.89
2018-05-15 13F-HR LORD, ABBETT & CO. LLC 277,352 262,595 -5.32 15,545 16,530 6.34
2018-05-08 13F-HR Aperio Group, LLC 9,431 8,616 -8.64 529 542 2.46
2018-04-23 13F-HR FIRST TRUST ADVISORS LP 45,378 2,857
2018-05-09 13F-HR BlackRock Inc. 1,604,250 1,621,618 1.08 89,917 102,081 13.53
2018-05-15 13F-HR Rock Springs Capital Management LP 406,000 477,500 17.61 22,756 30,059 32.09
2018-05-15 13F-HR Adage Capital Partners GP LLC 248,761 148,519 -40.30 13,943 9,349 -32.95
2018-05-11 13F-HR SEI INVESTMENTS CO 1,140 71
2018-05-14 13F-HR BRANDYWINE MANAGERS, LLC 3,212 202
2018-05-03 13F-HR SG Americas Securities, LLC 1,782 112
2018-05-14 13F-HR TOCQUEVILLE ASSET MANAGEMENT L.P. 3,500 220
2018-05-15 13F-HR Squarepoint Ops LLC 15,418 8,957 -41.91 864 564 -34.72
2018-05-02 13F-HR SHAKER INVESTMENTS LLC/OH 4,700 23,318 396.13 263 1,468 458.17
2018-05-09 13F-HR NORTHERN TRUST CORP 188,431 190,626 1.16 10,561 12,000 13.63
2018-05-04 13F-HR STATE BOARD OF ADMINISTRATION OF FLORIDA RETIREMENT SYSTEM 5,752 6,491 12.85 322 409 27.02
2018-05-14 13F-HR AMERIPRISE FINANCIAL INC 129,909 756,646 482.44 7,281 47,630 554.17
2018-05-15 13F-HR New Leaf Venture Partners, L.L.C. 328,741 0 -100.00 18,426 0 -100.00
2018-05-10 13F-HR BLUESTEIN R H & CO 4,500 283
2018-05-15 13F-HR CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM 22,483 21,721 -3.39 1,260 1,367 8.49
2018-05-15 13F-HR SUMMIT PARTNERS PUBLIC ASSET MANAGEMENT, LLC 270,000 270,000 0.00 15,134 16,997 12.31
2017-02-10 13F-HR BlackRock Group LTD 93,160 2,795
2018-05-08 13F-HR Neuberger Berman Group LLC 0 17,500 0 1,102
2018-05-14 13F-HR OSTERWEIS CAPITAL MANAGEMENT INC 48,800 40,400 -17.21 2,735 2,543 -7.02
2018-05-08 13F-HR US BANCORP \DE\ 861 756 -12.20 48 47 -2.08
2018-05-15 13F-HR JANE STREET GROUP, LLC 20,592 0 -100.00 1,154 0 -100.00
2018-05-15 13F-HR BANK OF AMERICA CORP /DE/ 5,844 6,600 12.94 327 416 27.22
2018-05-09 13F-HR OPTIMUM INVESTMENT ADVISORS 600 38
2018-05-14 13F-HR TEACHERS ADVISORS INC 56,897 45,241 -20.49 3,189 2,848 -10.69
2018-05-14 13F-HR BAROMETER CAPITAL MANAGEMENT INC. 112,100 108,100 -3.57 6,283 6,805 8.31
2018-05-15 13F-HR CLOUGH CAPITAL PARTNERS L P 26,900 20,400 -24.16 1,508 1,284 -14.85
2018-05-15 13F-HR Redmile Group, LLC 814,574 729,874 -10.40 45,657 45,946 0.63
2018-05-14 13F-HR FIL Ltd 376,776 370,238 -1.74 21,118 23,306 10.36
2018-05-07 13F-HR AMERICAN INTERNATIONAL GROUP INC 9,608 9,117 -5.11 539 574 6.49
2018-05-11 13F-HR LOOMIS SAYLES & CO L P 335,488 355,997 6.11 18,804 22,410 19.18
2018-05-15 13F-HR Point72 Asset Management, L.P. 470,099 552,859 17.60 26,349 34,802 32.08
2018-05-14 13F-HR TIAA CREF INVESTMENT MANAGEMENT LLC 75,421 61,882 -17.95 4,227 3,895 -7.85
2018-05-15 13F-HR MILLENNIUM MANAGEMENT LLC Put 20,000 0 -100.00 1,121 0 -100.00

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Good afternoon, ladies and gentlemen, and welcome to the iRhythm Technologies Inc. Q1 2018 Earnings Conference Call. [Operator Instructions] As a reminder, the conference is being recorded. (13-0)

CUSIP: 450056106