Who owns athenahealth?

Top Holders and Investors of ATHN Stock

Find out what company owns athenahealth, who bought ATHN this quarter, and who sold shares of ATHN stock?

Fund or Company Name Number of Shares Valued At As Of
FMR LLC 5.92M $622.51M Dec 2016
Janus Capital Management LLC 5.74M $605.18M Dec 2016
MORGAN STANLEY 4.12M $432.68M Dec 2016
Wellington Management Company, LLP 3.43M $360.68M Dec 2016
The Vanguard Group,Inc 2.92M $306.46M Dec 2016
Sands Capital Management 2.75M $289.13M Dec 2016
Capital Research Global Investors^ 2.69M $283.05M Dec 2016
T. Rowe Price Associates, Inc. 1.81M $190.24M Dec 2016
Artisan Partners Limited Partnership 1.39M $146.41M Dec 2016
BlackRock Institutional Trust Company, N.A. 1.04M $109.35M Dec 2016
Riverbrige Partners 1.04M $108.97M Dec 2016
Point72 Asset Management 1.02M $107.80M Dec 2016
HHR Asset Management 803155 $84.46M Dec 2016
SUSQUEHANNA INTERNATIONAL 634100 $66.69M Dec 2016
ClearBridge Advisors, LLC 561372 $59.04M Dec 2016
STATE STREET CORPORATION 485105 $51.02M Dec 2016
Arrowpoint Asset Management, LLC 454069 $47.75M Dec 2016
EverPoint Asset Management 417500 $43.91M Dec 2016
Jackson Square Partners 416660 $43.82M Dec 2016
BlackRock Fund Advisors 413123 $43.45M Dec 2016
Franklin Resources, Inc. 412599 $43.39M Dec 2016
Millennium Management LLC 397227 $41.78M Dec 2016
Barclays PLC 366681 $38.57M Dec 2016
Bank of New York Mellon 342144 $35.98M Dec 2016
GOLDMAN SACHS GROUP INC 317865 $33.43M Dec 2016
Ruane, Cunniff & Goldfarb Inc. 302156 $31.78M Dec 2016
Two Sigma Investments, LLC 300408 $31.59M Dec 2016
Stephens Investment Management Group 300347 $31.59M Dec 2016
Camber Capital Management LLC 300000 $31.55M Dec 2016
Geode Capital Management, LLC 286273 $30.11M Dec 2016
Allianz Asset Management AG 286055 $30.08M Dec 2016
Sumitomo Mitsui Asset Management Company, LTD 286055 $30.08M Dec 2016
ARK Investment Management 233411 $24.55M Dec 2016
Barton Investment Management 216835 $22.80M Dec 2016
KORNITZER CAPITAL MANAGEMENT INC /KS 216610 $22.78M Dec 2016
NORTHERN TRUST 212301 $22.33M Dec 2016
Deutsche Bank Aktiengesellschaft 203349 $0 Dec 2016
EVENTIDE ASSET MANAGEMENT 201200 $21.16M Dec 2016
Quadrature Capital 198592 $919480 Dec 2016
Bank of America Corporation 191910 $20.18M Dec 2016
Emerald Acquisition 184840 $23.31M Sep 2016
Macquarie Group Limited 177329 $18.65M Dec 2016
The TCW Group, Inc. 176746 $18.59M Dec 2016
PICTET ASSET MANAGEMENT 176012 $18.51M Dec 2016
New York State Common Retirement Fund 153077 $16.10M Dec 2016
Two Sigma Advisers, LLC 152348 $16.02M Dec 2016
Hutchin Hill Capital, LP 150000 $15.78M Dec 2016
Charles Schwab Investment Management, Inc. 144762 $15.22M Dec 2016
TIAA-CREF Investment Management 143096 $15.05M Dec 2016
HIGHBRIDGE CAPITAL MANAGEMENT LLC 129309 $13.60M Dec 2016
PEAK6 Investments, L.P. 124900 $13.14M Dec 2016
CITADEL ADVISORS LLC 115400 $12.14M Dec 2016
WOLVERINE TRADING 106900 $11.24M Dec 2016
GAGNON SECURITIES LLC 101503 $10.68M Dec 2016
PURA VIDA INVESTMENTS 95000 $9.99M Dec 2016
DIMENSIONAL FUND ADVISORS 88589 $9.32M Dec 2016
SEI INVESTMENTS 82649 $8.38M Dec 2016
California State Teachers Retirement System 80949 $8.51M Dec 2016
Wells Fargo & Company 79684 $8.38M Dec 2016
CalPERS 75400 $7.93M Dec 2016
Teachers Advisors 73860 $7.77M Dec 2016
FRIESS ASSOCIATES, INC. 70000 $7.36M Dec 2016
Zurcher Kantonalbank 69191 $7.28M Dec 2016
361 CAPITAL 67219 $7.07M Dec 2016
Swiss National Bank 64730 $6.81M Dec 2016
Rock Springs Capital Management 62750 $6.60M Dec 2016
Avalon Global Asset Management 61080 $6.42M Dec 2016
Credit Suisse AG 59544 $6.26M Dec 2016
Clinton Group, Inc. 58502 $6.15M Dec 2016
Florida State Board of Administration 57608 $6.06M Dec 2016
Public Employees' Retirement Association of Colorado 56394 $5.93M Dec 2016
HUNTINGTON NATIONAL BANK 51838 $5.44M Dec 2016
Polar Capital LLP 51187 $5.38M Dec 2016
Balyasny Asset Management 50578 $5.32M Dec 2016
Gagnon Advisors 49684 $5.22M Dec 2016
A.R.T. Advisors 46500 $4.89M Dec 2016
Loomis, Sayles and 44226 $4.65M Dec 2016
RHUMBLINE ADVISERS 43560 $4.58M Dec 2016
Tamarack Advisers 41000 $4.31M Dec 2016
PDT Partners 36373 $3.82M Dec 2016
BlackRock Advisors 34216 $3.60M Dec 2016
BANK OF MONTREAL /CAN/ 32003 $3.03M Dec 2016
BlackRock Group 31302 $3.29M Dec 2016
UBS Group AG 28679 $3.02M Dec 2016
JANE STREET 27509 $2.89M Dec 2016
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ 26643 $2.80M Dec 2016
ENVESTNET ASSET MANAGEMENT 25793 $2.71M Dec 2016
TD Asset Management Inc. 24441 $2.57M Dec 2016
ALLIANCEBERNSTEIN, L.P. 22390 $2.35M Dec 2016
State of Wisconsin Investment Board 21341 $2.24M Dec 2016
UBS GLOBAL ASSET MANAGEMENT AMERICAS 20111 $2.12M Dec 2016
US BANCORP \DE\ 19741 $2.08M Dec 2016
United Services Automobile Association 19640 $2.07M Dec 2016
Parametric Portfolio Associates 19237 $2.02M Dec 2016
BlackRock Investment Management 18735 $1.97M Dec 2016
Cutler 18100 $1.90M Dec 2016
CAM Group Holding A/S 18000 $1.89M Dec 2016
PNC FINANCIAL SERVICES 17351 $1.83M Dec 2016
D. E. Shaw & Co., Inc. (see notes 1, 2 and 3) 17300 $1.82M Dec 2016
Invesco Ltd. 16783 $1.77M Dec 2016
OHIO PERS 16514 $2.08M Sep 2016
ING INVESTMENT MANAGEMENT 16411 $1.73M Dec 2016
Schonfeld Strategic Advisors 15878 $1.67M Dec 2016
MENTA CAPITAL LLC 15620 $1.64M Dec 2016
SECOR Capital Advisors 15235 $1.60M Dec 2016
Cribstone Capital Management 13702 $1.67M Dec 2016
Brown Advisory Holdings Incorporated 12900 $1.36M Dec 2016
KBC Group NV 11945 $1.26M Dec 2016
Gilder, Gagnon, Howe & Co. LLC 11933 $1.25M Dec 2016
Baird Financial 11713 $1.23M Dec 2016
NORDEA INVESTMENT MANAGEMENT AB 11568 $1.22M Dec 2016
Pacad Investment 10958 $1.15M Dec 2016
Cubist Systematic Strategies 10828 $1.14M Dec 2016
SunTrust Banks, Inc. 10112 $1.06M Dec 2016
Frank Russell Company 9338 $1.31M Mar 2016
Royal Bank of Canada 9337 $981412 Dec 2016
Bush O'Donnell Investment Advisors 9280 $975977 Dec 2016
Engineers Gate Manager 8990 $945028 Dec 2016
Capital Fund Management S.A. 8769 $922586 Dec 2016
STIFEL FINANCIAL 8510 $899166 Dec 2016
Quantbot Technologies LLC 8394 $882041 Dec 2016
Sunrise Partners Limited Partnership 8381 $880591 Dec 2016
T. Montgomery Jones 8359 $879032 Dec 2016
Daiwa SB Investments Co., Ltd. 8000 $840960 Dec 2016
First Republic Investment Management, Inc 7711 $809963 Dec 2016
Rockefeller Financial Services, Inc. 7470 $785993 Dec 2016
Principal Financial Group, Inc. 7277 $765031 Dec 2016
Utah Retirement Systems 7200 $757008 Dec 2016
Evercore Wealth Management, LLC 7000 $735980 Dec 2016
AMALGAMATED BANK 6947 $731032 Dec 2016
STEVENS CAPITAL MANAGEMENT LP 6666 $700996 Dec 2016
Commonwealth Equity Services 6589 $693031 Dec 2016
Walleye Trading, LLC 6508 $685878 Dec 2016
Jacobs Levy Equity Management, Inc. 6400 $673024 Dec 2016
Laurion Capital Management LP 6300 $663012 Dec 2016
Dynamic Technology Lab Private 6293 $662023 Dec 2016
R&F Capital Advisors 5720 $601972 Dec 2016
Trexquant Investment 5636 $593019 Dec 2016
AQR Capital Management, LLC 5465 $575027 Dec 2016
Citigroup Inc. 5357 $561306 Dec 2016
FDx Advisors 5293 $556982 Dec 2016
Stephens Inc. 5269 $553982 Dec 2016
KCG Holdings 5234 $549988 Dec 2016
BlackRock 5204 $547460 Dec 2016
FOX RUN MANAGEMENT 5200 $546988 Dec 2016
Jefferies Group Inc. 4930 $518044 Dec 2016
INTEGRAL DERIVATIVES 4900 $514990 Dec 2016
Aperio Group LLC 4853 $510001 Dec 2016
Airain 4672 $490980 Dec 2016
Legal & General Group Plc 4401 $464877 Dec 2016

Who sold athenahealth?

Fund Name Date Sold Shares Held Valued At
STATE TREASURER STATE OF MICHIGAN Sept. 30, 2016 175100 $22.08M
DIAM Co., Ltd. Sept. 30, 2016 135996 $16.87M
Scoggin LLC Sept. 30, 2016 96000 $12.11M
AXA Sept. 30, 2016 80500 $10.15M
Sio Capital Management, LLC Sept. 30, 2016 57600 $7.27M
BAMCO, Inc. Sept. 30, 2016 41360 $5.22M
First Trust Advisors L.P. Sept. 30, 2016 39608 $4.99M
Tygh Capital Management, Inc. Sept. 30, 2016 33443 $4.22M
Northeast Investment Management, Inc. Sept. 30, 2016 33260 $4.20M
Criterion Capital Management, LLC Sept. 30, 2016 31103 $3.92M
Otter Creek Advisors Sept. 30, 2016 27600 $3.48M