| SC 13G/A | 2019-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | ATHENAHEALTH INC | 510,156 | 1.2% | EDGAR |
| SC 13D/A | 2019-02-12 | ELLIOTT ASSOCIATES, L.P. | ATHENAHEALTH INC | 0 | 0.0% | EDGAR |
| SC 13G/A | 2019-02-12 | MORGAN STANLEY | ATHENAHEALTH INC | 4,427,974 | 10.7% | EDGAR |
| SC 13G/A | 2019-02-12 | WELLINGTON MANAGEMENT GROUP LLP | ATHENAHEALTH INC | 1,876,534 | 4.6% | EDGAR |
| SC 13G/A | 2019-02-11 | VANGUARD GROUP INC | ATHENAHEALTH INC | 3,595,427 | 8.7% | EDGAR |
| SC 13G/A | 2019-01-31 | VANGUARD SPECIALIZED FUNDS | ATHENAHEALTH INC | 10 | 0.0% | EDGAR |
| SC 13G/A | 2019-01-10 | JANUS HENDERSON GROUP PLC | ATHENAHEALTH INC | 2,448,360 | 6.0% | EDGAR |
| SC 13G/A | 2018-12-10 | FMR LLC | ATHENAHEALTH INC | 26 | 0.0% | EDGAR |
| SC 13D/A | 2018-11-13 | ELLIOTT ASSOCIATES, L.P. | ATHENAHEALTH INC | 185,599 | 0.5% | EDGAR |
| SC 13G | 2018-06-15 | JANUS HENDERSON GROUP PLC | ATHENAHEALTH INC | 4,784,975 | 11.8% | EDGAR |
| SC 13D | 2018-05-18 | JANUS HENDERSON GROUP PLC | ATHENAHEALTH INC | 4,789,251 | 11.9% | EDGAR |
| SC 13G/A | 2018-05-10 | FMR LLC | ATHENAHEALTH INC | 2,505,935 | 6.2% | EDGAR |
| SC 13D/A | 2018-05-07 | ELLIOTT ASSOCIATES, L.P. | ATHENAHEALTH INC | 185,599 | 0.5% | EDGAR |
| SC 13G/A | 2018-02-14 | PRICE T ROWE ASSOCIATES INC /MD/ | ATHENAHEALTH INC | 3,454,259 | 8.6% | EDGAR |
| SC 13G/A | 2018-02-14 | SANDS CAPITAL MANAGEMENT, LLC | ATHENAHEALTH INC | 405 | 0.0% | EDGAR |
| SC 13G/A | 2018-02-14 | Capital Research Global Investors | ATHENAHEALTH INC | 1,835,714 | 4.5% | EDGAR |
| SC 13G | 2018-02-14 | NOMURA HOLDINGS INC | ATHENAHEALTH INC | 2,026,506 | 5.1% | EDGAR |
| SC 13G/A | 2018-02-13 | FMR LLC | ATHENAHEALTH INC | 5,094,407 | 12.7% | EDGAR |
| SC 13G/A | 2018-02-13 | MORGAN STANLEY | ATHENAHEALTH INC | 4,244,868 | 10.6% | EDGAR |
| SC 13G/A | 2018-02-12 | VANGUARD GROUP INC | ATHENAHEALTH INC | 3,219,814 | 8.0% | EDGAR |