Dark
Light
System
Security
ATHENAHEALTH INC
ATHENAHEALTH INC. Institutional holdings reported to the SEC.

Institutional Holders (2014Q4)
Portfolio Summary: 235 Institutional holders with a total value of $7,271,742,171.
#
Manager Name
Shares
Value ($)
%
Options
Notes
1 FMR LLC 5,714,119 832,547,000 11.45%
2 MORGAN STANLEY 4,873,132 710,016,000 9.76%
3 SANDS CAPITAL MANAGEMENT, LLC 4,810,009 700,818,000 9.64%
4 Capital Research Global Investors 3,311,823 462,695,000 6.36%
5 JANUS HENDERSON INVESTORS US LLC 3,084,237 449,385,000 6.18%
6 Artisan Partners Limited Partnership 3,083,380 449,248,000 6.18%
7 VANGUARD GROUP INC 2,295,750 334,491,000 4.60%
8 PRICE T ROWE ASSOCIATES INC /MD/ 1,977,848 288,172,000 3.96%
9 TCW GROUP INC 1,757,638 256,087,000 3.52%
10 WELLINGTON MANAGEMENT GROUP LLP 1,716,022 250,024,000 3.44%
11 Capital World Investors 1,646,638 230,052,000 3.16%
12 CRITERION CAPITAL MANAGEMENT LLC 1,220,404 177,813,000 2.45%
13 RIVERBRIDGE PARTNERS LLC 1,043,467 152,033,000 2.09%
14 BlackRock Institutional Trust Company, N.A. 945,365 137,740,000 1.89%
15 FRANKLIN RESOURCES INC 742,794 108,226,000 1.49%
16 WELLS FARGO & COMPANY/MN 656,970 95,719,000 1.32%
17 Clearbridge Investments, LLC 624,437 90,980,000 1.25%
18 KORNITZER CAPITAL MANAGEMENT INC /KS 577,794 84,185,000 1.16%
19 Jackson Square Partners, LLC 545,944 79,544,000 1.09%
20 MANAGED ACCOUNT ADVISORS LLC 515,701 75,138,000 1.03%
21 Bank of New York Mellon Corp 491,211 71,569,000 0.98%
22 STATE STREET CORP 428,055 62,368,000 0.86%
23 BLACKROCK ADVISORS LLC 425,528 61,999,000 0.85%
24 SUSQUEHANNA INTERNATIONAL GROUP, LLP 420,500 61,267,000 0.84% Call
25 NORTHERN TRUST CORP 409,193 59,619,000 0.82%
26 MACQUARIE GROUP LTD 374,157 54,515,000 0.75%
27 SUSQUEHANNA INTERNATIONAL GROUP, LLP 365,100 53,195,000 0.73% Put
28 BlackRock Fund Advisors 345,269 50,306,000 0.69%
29 BlackRock Investment Management, LLC 315,447 45,961,000 0.63%
30 Stephens Investment Management Group LLC 301,713 43,960,000 0.60%
31 NORGES BANK 284,563 41,461,000 0.57%
32 HHR Asset Management, LLC 275,000 40,068,000 0.55%
33 Barton Investment Management 216,336 31,520,000 0.43%
34 PEAK6 Group LLC 198,900 28,980,000 0.40% Call
35 GEODE CAPITAL MANAGEMENT, LLC 198,247 28,884,000 0.40%
36 ArrowMark Colorado Holdings LLC 142,717 20,794,000 0.29%
37 TIAA CREF INVESTMENT MANAGEMENT LLC 139,949 20,391,000 0.28%
38 GAGNON SECURITIES LLC 112,439 16,382,000 0.23%
39 Asset Management One Co., Ltd. 108,492 16,334,000 0.22%
40 Polar Capital LLP 100,769 14,682,000 0.20%
41 GOLDMAN SACHS GROUP INC 98,300 14,322,000 0.20% Put
42 DEUTSCHE BANK AG\ 94,785 13,808,000 0.19%
43 BAMCO INC /NY/ 93,730 13,656,000 0.19%
44 Arbiter Partners Capital Management LLC 82,800 12,064,000 0.17% Put
45 FIRST TRUST ADVISORS LP 80,596 11,743,000 0.16%
46 CHARLES SCHWAB INVESTMENT MANAGEMENT INC 80,543 11,736,000 0.16%
47 CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM 77,975 11,365,000 0.16%
48 Gagnon Advisors, LLC 76,214 11,104,000 0.15%
49 BANK OF AMERICA CORP /DE/ 74,110 10,798,000 0.15%
50 NEW YORK STATE COMMON RETIREMENT FUND 73,577 10,720,000 0.15%
Page 1 of 5

From 2023-01-03 onward, the SEC requires values to be reported in nearest dollars. Earlier filings reported values in thousands; therefore, positions shown as $0 in older filings may represent actual values between $0–$999.