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 5.99M $744.85M Sep 2017
Janus Capital Management 5.72M $644.45M Mar 2017
Henderson 4.66M $579.58M Sep 2017
Morgan Stanley 4.51M $508.81M Mar 2017
Wellington Management Company 3.88M $482.39M Sep 2017
Vanguard 3.17M $394.58M Sep 2017
T. Rowe Price Associates 3.12M $438.10M Jun 2017
Nomura Holdings 2.27M $282.42M Sep 2017
Capital Research Global Investors^ 1.77M $199.24M Mar 2017
BlackRock 1.64M $203.85M Sep 2017
BlackRock Institutional Trust Company, N.A. 1.04M $109.35M Dec 2016
Riverbrige Partners 981741 $122.09M Sep 2017
ClearBridge Advisors 910195 $113.19M Sep 2017
Sands Capital Management 786576 $97.82M Sep 2017
Credit Suisse AG 656683 $92.27M Jun 2017
Goldman Sachs 641338 $79.76M Sep 2017
Jackson Square Partners 525738 $65.38M Sep 2017
State Street Corporation 505080 $62.81M Sep 2017
EverPoint Asset Management 417500 $43.91M Dec 2016
BlackRock Fund Advisors 413123 $43.45M Dec 2016
Arrowpoint Asset Management 393452 $48.93M Sep 2017
Elliott Management Corporation 375000 $46.63M Sep 2017
Bank of America Corporation 371930 $46.26M Sep 2017
Bank of New York Mellon 347405 $48.82M Jun 2017
Citadel Advisors 347291 $43.19M Sep 2017
Geode Capital Management 335342 $41.70M Sep 2017
Allianz Asset Management AG 332760 $41.38M Sep 2017
Sumitomo Mitsui Asset Management Company 323615 $40.24M Sep 2017
Nikko Asset Management Americas 282600 $35.14M Sep 2017
Sumitomo Mitsui Trust Holdings 276700 $34.41M Sep 2017
Balyasny Asset Management 275048 $34.20M Sep 2017
Stephens Investment Management 271080 $33.71M Sep 2017
Ark Investment Management 244056 $30.35M Sep 2017
Barton Investment Management 236819 $29.45M Sep 2017
Northern Trust 219634 $27.32M Sep 2017
Millennium Management 218604 $27.19M Sep 2017
Kornitzer Capital Management Inc /ks 209715 $26.08M Sep 2017
Ruane, Cunniff & Goldfarb 197257 $24.53M Sep 2017
ARK Investment Management 194366 $27.32M Jun 2017
Dimensional Fund Advisors 190676 $23.71M Sep 2017
Lmm 186985 $23.25M Sep 2017
Charles Schwab Investment Management 183984 $22.88M Sep 2017
Royce & Associates 158400 $19.70M Sep 2017
Peregrine Capital Management 143538 $17.85M Sep 2017
PEAK6 Investments 138600 $17.24M Sep 2017
Wolverine Trading 135145 $16.81M Sep 2017
TIAA-CREF Investment Management 134048 $16.67M Sep 2017
Deutsche Bank Aktiengesellschaft 131987 $16.41M Sep 2017
D. E. Shaw & Co 131033 $16.30M Sep 2017
Sei Investments 128190 $25.64M Sep 2017
Two Sigma Advisers 121048 $13.64M Mar 2017
Toronto-Dominion Bank 120000 $16.86M Jun 2017
Macquarie 118386 $14.72M Sep 2017
First Trust Advisors 115592 $14.38M Sep 2017
Pictet Asset Management 114113 $14.19M Sep 2017
New York State Common Retirement Fund 111600 $15.69M Jun 2017
Vista Equity Partners III 105148 $13.08M Sep 2017
Twin Tree Management 86929 $10.81M Sep 2017
Avalon Global Asset Management 85780 $10.67M Sep 2017
Bank Of Montreal /can/ 84553 $10.52M Sep 2017
Wells Fargo & Company 82048 $11.53M Jun 2017
Artisan Partners Limited Partnership 78765 $9.80M Sep 2017
Scout Investments 78661 $9.78M Sep 2017
Teachers Advisors 75552 $9.40M Sep 2017
CalPERS 75000 $9.33M Sep 2017
Perceptive Advisors 70000 $8.71M Sep 2017
Zurcher Kantonalbank 68768 $8.55M Sep 2017
Swiss National Bank 66630 $8.29M Sep 2017
California State Teachers Retirement System 63567 $7.91M Sep 2017
Pura Vida Investments 59800 $7.44M Sep 2017
Florida State Board of Administration 58009 $7.21M Sep 2017
Huntington National Bank 55918 $6.94M Sep 2017
Public Employees' Retirement Association of Colorado 55546 $6.91M Sep 2017
Hsbc Holdings 49683 $6.18M Sep 2017
Barclays 47676 $5.93M Sep 2017
Canada Pension Plan Investment Board 46800 $5.82M Sep 2017
TD Asset Management 46732 $5.81M Sep 2017
Rhumbline Advisers 44440 $6.25M Jun 2017
Eventide Asset Management 37000 $4.60M Sep 2017
BlackRock Advisors 34216 $3.60M Dec 2016
Stevens Capital Management 32880 $4.09M Sep 2017
Ubs Global Asset Management Americas 32600 $4.05M Sep 2017
Oppenheimer Asset Management 31974 $3.99M Sep 2017
BlackRock 31302 $3.29M Dec 2016
Gagnon Securities 29906 $3.72M Sep 2017
Parametric Portfolio Associates 26660 $3.31M Sep 2017
Envestnet Asset Management 26366 $3.28M Sep 2017
Cutler 26106 $3.20M Sep 2017
United Services Automobile Association 24290 $3.02M Sep 2017
UBS Group AG 23878 $2.97M Sep 2017
Alliancebernstein 22390 $2.78M Sep 2017
Two Sigma Investments 21719 $2.45M Mar 2017
A.R.T. Advisors 21100 $2.62M Sep 2017
Inves 20006 $2.49M Sep 2017
Spot Trading L.L.C 19511 $2.22M Mar 2017
Us Bancorp \de\ 19272 $2.40M Sep 2017
BlackRock Investment Management 18735 $1.97M Dec 2016
Gagnon Advisors 16870 $2.10M Sep 2017
Ohio Pers 16539 $2.06M Sep 2017
HAP Trading 15300 $104040 Sep 2017
Ing Investment Management 15045 $1.87M Sep 2017
Legal & General 14358 $2.02M Jun 2017
PDT Partners 14032 $1.75M Sep 2017
Cribstone Capital Management 14004 $1.74M Sep 2017
Citi 13864 $1.72M Sep 2017
Walleye Trading 13200 $1.63M Sep 2017
Bayesian Capital Management 13155 $1.64M Sep 2017
Wesbanco Trust And Investments 12461 $1.55M Sep 2017
Sivik Global Healthcare 12000 $1.49M Sep 2017
SECOR Capital Advisors 10564 $1.31M Sep 2017
Picton Mahoney Asset Management 10000 $1.24M Sep 2017
Tudor Investment Corporation 9641 $1.20M Sep 2017
Brown Advisory Holdings Incorporated 9630 $1.19M Sep 2017
Spot Trading 9307 $1.16M Sep 2017
Bush O'Donnell Investment Advisors 9280 $1.15M Sep 2017
First Republic Investment Management 9261 $1.15M Sep 2017
Schonfeld Strategic Advisors 9234 $1.15M Sep 2017
Rockefeller Financial Services 9110 $1.13M Sep 2017
SunTrust Banks 9088 $1.03M Sep 2017
Tokio Marine Asset Management 8900 $1.11M Sep 2017
Stifel Financial 8828 $1.10M Sep 2017
Commonwealth Equity Services 8794 $1.09M Sep 2017
State of Wisconsin Investment Board 8032 $999020 Sep 2017
Numeric Investors 8000 $995040 Sep 2017
HighVista Strategies 7903 $982975 Sep 2017
Glenmede Trust Company, N.A. 7603 $944824 Sep 2017
Parallax Volatility Advisers 7500 $1.05M Jun 2017
Amalgamated Bank 7465 $927974 Sep 2017
Utah Retirement Systems 7200 $895032 Sep 2017
Symmetry Peak Management 7100 $883027 Sep 2017
Pnc Financial Services 6940 $863613 Sep 2017
Sunrise Partners Limited Partnership 6839 $849130 Sep 2017
Aperio 6594 $820029 Sep 2017
Dynamic Technology Lab Private 6440 $799976 Sep 2017
KCG Holdings 6412 $901014 Jun 2017
Evercore Wealth Management 6364 $795500 Sep 2017
Brandywine Managers 6180 $768977 Sep 2017
Allen Investment Management 6133 $763006 Sep 2017
HighTower Advisors 6118 $758020 Sep 2017
William Blair $ Company 6055 $752999 Sep 2017
Principal Financial 5850 $727974 Sep 2017
Marshall Wace 5569 $691001 Sep 2017
Russell Investments 5409 $672987 Sep 2017
Franklin Resources 4986 $619709 Sep 2017
FDx Advisors 4711 $586001 Sep 2017
Guggenheim Capital, LLC Managers 4686 $582001 Sep 2017
OppenheimerFunds 4604 $573013 Sep 2017
Pacer Advisors 4511 $560987 Sep 2017
Great-West Life Assurance Company 4358 $610991 Jun 2017
Keybank National Association/oh 4103 $510002 Sep 2017

Who sold athenahealth?

Fund Name Date Sold Shares Held Valued At
Hitchwood Capital Management June 30, 2017 500000 $70.28M
Senator Investment June 30, 2017 450000 $63.25M
Susquehanna International June 30, 2017 395800 $55.63M
Natixis June 30, 2017 100000 $14.05M
Quantitative Investment Management June 30, 2017 40500 $5.69M
Portolan Capital Management June 30, 2017 21653 $3.04M
Nordea Investment Management Ab March 31, 2017 13256 $1.49M
Massachusetts Financial Services Co /ma/ June 30, 2017 12463 $1.75M
BlueCrest Capital Management June 30, 2017 12012 $1.69M