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Notable Holders of Athenahealth, Inc. (ATHN)

  |   Expand Research on ATHN   |   * Does Not Fully Represent All Holders
Fund Title Shares % Owned Source
Fidelity Investments COM 5,247,988 14.85% 13F
MORGAN STANLEY COM 4,245,787 12.02% 13F
Artisan Partners Limited Partnership COM 4,111,800 11.64% 13F
PRICE T ROWE ASSOCIATES INC /MD/ COMM STK 2,213,115 6.26% 13F
JANUS CAPITAL MANAGEMENT LLC COM 1,898,828 5.37% 13F
VANGUARD GROUP INC COM 1,623,255 4.59% 13F
MACQUARIE GROUP LTD COMMON STOCK 1,133,422 3.21% 13F
BlackRock Institutional Trust Company, N.A. COM 921,056 2.61% 13F
STATE STREET CORP COMMON STOCK 746,568 2.11% 13F
BlackRock Fund Advisors COM 724,233 2.05% 13F
TCW GROUP INC COM 653,439 1.85% 13F
RIVERBRIDGE PARTNERS LLC COM 651,842 1.85% 13F
LORD ABBETT & CO LLC COM 583,413 1.65% 13F
NORTHERN TRUST CORP COM 547,455 1.55% 13F
NEXT CENTURY GROWTH INVESTORS LLC 546,012 1.55% 13F
WELLS FARGO & CO/MN EQUITY 421,923 1.19% 13F
GENEVA INVESTMENT MANAGEMENT OF CHICAGO LLC COM 367,918 1.04% 13F
WASHINGTON TRUST CO COMMON STOCK 354,337 1.00% 13F
AMERIPRISE FINANCIAL INC COM 290,600 0.82% 13F
SANDS CAPITAL MANAGEMENT, LLC 265,977 0.75% 13F
Cupps Capital Management, LLC COM 245,380 0.69% 13F
Clearbridge Advisors, LLC COM 242,406 0.69% 13F
Barton Investment Management COMMON STOCK 207,740 0.59% 13F
IRONBRIDGE CAPITAL MANAGEMENT LP COM 193,296 0.55% 13F
TIAA CREF INVESTMENT MANAGEMENT LLC COM 170,845 0.48% 13F
Stephens Investment Management Group LLC COM 170,689 0.48% 13F
PEAK6 Investments, L.P. COM 141,600 0.40% 13F
GAGNON SECURITIES LLC COM 136,004 0.38% 13F
SCHWAB CHARLES INVESTMENT MANAGEMENT INC COM 133,108 0.38% 13F
CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM * ATHENAHEALTH INC COM 107,882 0.31% 13F
GEODE CAPITAL MANAGEMENT LLC COM 105,042 0.30% 13F
OPPENHEIMER FUNDS INC COM 103,990 0.29% 13F
BlackRock Investment Management, LLC COM 102,507 0.29% 13F
CREDIT SUISSE AG/ COM 95,533 0.27% 13F
TEACHERS ADVISORS INC COM 74,786 0.21% 13F
SANDLER CAPITAL MANAGEMENT COM 70,000 0.20% 13F
300 NORTH CAPITAL, LLC COM 64,970 0.18% 13F
DIMENSIONAL FUND ADVISORS LP COM 61,275 0.17% 13F
AH Lisanti Capital Growth, LLC COM 57,527 0.16% 13F
DRIEHAUS CAPITAL MANAGEMENT LLC COM 55,445 0.16% 13F
DEUTSCHE BANK AG\ COM 55,263 0.16% 13F
CITIGROUP INC COM 53,758 0.15% 13F
BARCLAYS PLC COM 51,643 0.15% 13F
SAC Capital COMMON 47,787 0.14% 13F
RUSSELL FRANK CO/ COMMON STOCKS 46,546 0.13% 13F
BROWN ADVISORY HOLDINGS INC COM 45,162 0.13% 13F
ROYAL BANK OF CANADA \ COM 44,281 0.13% 13F
RENAISSANCE TECHNOLOGIES LLC COM 41,900 0.12% 13F
JACOBS LEVY EQUITY MANAGEMENT INC COM 41,370 0.12% 13F
BESSEMER GROUP INC SC 38,437 0.11% 13F
LOS ANGELES CAPITAL MANAGEMENT & EQUITY RESEARCH INC COM 37,719 0.11% 13F
PARAMETRIC PORTFOLIO ASSOCIATES Common Stock 32,688 0.09% 13F
OPPENHEIMER & CO INC COM 30,943 0.09% 13F
FCM INVESTMENTS/TX COMMON US 29,078 0.08% 13F
AMERICAN INTERNATIONAL GROUP INC COM 28,693 0.08% 13F
Manulife Asset Management (North America) Ltd COM 27,866 0.08% 13F
PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO COM 27,630 0.08% 13F
TD ASSET MANAGEMENT INC COM 25,700 0.07% 13F
RCM CAPITAL MANAGEMENT LLC COM 25,100 0.07% 13F
ING INVESTMENT MANAGEMENT CO COM 24,180 0.07% 13F
BLACKROCK ADVISORS LLC COM 23,878 0.07% 13F
OLD MUTUAL ASSET MANAGERS UK LTD COM 23,274 0.07% 13F
WEISEL THOMAS PARTNERS ASSET MANAGEMENT LLC COM 23,108 0.07% 13F
GUGGENHEIM CAPITAL LLC COM 20,458 0.06% 13F
AQR CAPITAL MANAGEMENT LLC COM 20,000 0.06% 13F
Wellspring Management, LLC COM 20,000 0.06% 13F
Spot Trading L.L.C (CALL) COM 19,300 0.05% 13F
CREDIT AGRICOLE S A COM 18,399 0.05% 13F
CAXTON ASSOCIATES LP COM 16,159 0.05% 13F
MAZAMA CAPITAL MANAGEMENT INC COM 15,390 0.04% 13F
NOMURA ASSET MANAGEMENT CO LTD 15,000 0.04% 13F
MASSACHUSETTS FINANCIAL SERVICES CO /MA/ COM 14,950 0.04% 13F
NEW YORK STATE COMMON RETIREMENT FUND COMMON STOCK 14,718 0.04% 13F
Placemark Investments, Inc. COM 14,245 0.04% 13F
Liberty Mutual Group Asset Management Inc. COM 13,802 0.04% 13F
COMMONWEALTH OF PENNSYLVANIA PUBLIC SCHOOL EMPLS RETRMT SYS 13,570 0.04% 13F
MILLENNIUM MANAGEMENT LLC COM 12,262 0.03% 13F
UBS AG COM 12,185 0.03% 13F
JPMORGAN CHASE & CO COMMON 11,952 0.03% 13F
Magnetar Financial LLC COM 11,516 0.03% 13F
PRINCIPAL FINANCIAL GROUP INC COM 11,133 0.03% 13F
PNC FINANCIAL SERVICES GROUP INC COM 10,644 0.03% 13F
KNIGHT CAPITAL GROUP, INC. COM 10,550 0.03% 13F
BlackRock Group LTD COM 10,046 0.03% 13F
Evercore Wealth Management, LLC COM 9,950 0.03% 13F
HBK INVESTMENTS L P COM 9,800 0.03% 13F
GLOBEFLEX CAPITAL L P COM 9,000 0.03% 13F
TOCQUEVILLE ASSET MANAGEMENT LP COM 8,000 0.02% 13F
SHEETS SMITH WEALTH MANAGEMENT COM 7,997 0.02% 13F
TURNER INVESTMENT PARTNERS INC COM 7,083 0.02% 13F
Invesco Ltd. COMMON 7,007 0.02% 13F
SG Americas Securities, LLC 6,026 0.02% 13F
DEERE & CO COM 5,790 0.02% 13F
WEXFORD CAPITAL LP COM 5,738 0.02% 13F
BALDWIN BROTHERS INC/MA COM 5,565 0.02% 13F
Neuberger Berman Group LLC COMMON STOCK 4,751 0.01% 13F
Voleon Capital Management LP COMMON 4,700 0.01% 13F
GSA CAPITAL PARTNERS LLP COM 4,658 0.01% 13F
HighTower Advisors, LLC COM 4,646 0.01% 13F
BLUESTEIN R H & CO COM 4,500 0.01% 13F
World Asset Management Inc COM 4,112 0.01% 13F
ALLSTATE CORP COMMON 3,880 0.01% 13F
COOLIDGE FRANCIS L COMMON STOCK 3,828 0.01% 13F
COMERICA BANK COM 3,613 0.01% 13F