| SC 13D/A | 2015-05-01 | ALDRICH RICHARD | OvaScience, Inc. | 1,009,140 | 3.7% | EDGAR |
| SC 13D/A | 2015-03-20 | Longwood Fund, L.P. | OvaScience, Inc. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2015-03-10 | JANUS CAPITAL MANAGEMENT LLC | OvaScience, Inc. | 3,086,143 | 11.6% | EDGAR |
| SC 13G/A | 2015-02-18 | JANUS CAPITAL MANAGEMENT LLC | OvaScience, Inc. | 2,078,886 | 8.5% | EDGAR |
| SC 13G/A | 2015-02-17 | ADAGE CAPITAL PARTNERS GP LLC | OvaScience, Inc. | 1,405,000 | 5.8% | EDGAR |
| SC 13G/A | 2015-02-17 | Flynn James E | OvaScience, Inc. | 627,050 | 2.6% | EDGAR |
| SC 13G | 2015-02-17 | PRUDENTIAL FINANCIAL INC | OvaScience, Inc. | 1,828,385 | 7.3% | EDGAR |
| SC 13G/A | 2015-02-13 | FMR LLC | OvaScience, Inc. | 2,612,367 | 10.7% | EDGAR |
| SC 13G | 2015-02-11 | JENNISON ASSOCIATES LLC | OvaScience, Inc. | 1,823,613 | 7.3% | EDGAR |
| SC 13D/A | 2015-01-16 | Longwood Fund, L.P. | OvaScience, Inc. | 1,520,607 | 5.6% | EDGAR |
| SC 13D/A | 2015-01-16 | Deer VII & Co. Ltd. | OvaScience, Inc. | 1,251,945 | 4.6% | EDGAR |
| SC 13D/A | 2015-01-13 | Deer VII & Co. Ltd. | OvaScience, Inc. | 1,803,240 | 6.8% | EDGAR |
| SC 13D/A | 2014-12-29 | Deer VII & Co. Ltd. | OvaScience, Inc. | 2,318,940 | 9.7% | EDGAR |
| SC 13G/A | 2014-12-10 | FMR LLC | OvaScience, Inc. | 2,522,049 | 10.4% | EDGAR |
| SC 13D/A | 2014-09-19 | Longwood Fund, L.P. | OvaScience, Inc. | 2,820,607 | 11.6% | EDGAR |
| SC 13G | 2014-03-21 | ADAGE CAPITAL PARTNERS GP LLC | OvaScience, Inc. | 1,311,533 | 5.6% | EDGAR |
| SC 13D/A | 2014-03-19 | Longwood Fund, L.P. | OvaScience, Inc. | 3,820,571 | 15.8% | EDGAR |
| SC 13G | 2014-03-11 | Flynn James E | OvaScience, Inc. | 1,791,626 | 7.6% | EDGAR |
| SC 13G/A | 2014-02-14 | FMR LLC | OvaScience, Inc. | 1,368,559 | 7.5% | EDGAR |
| SC 13G | 2014-02-14 | JANUS CAPITAL MANAGEMENT LLC | OvaScience, Inc. | 1,082,338 | 5.9% | EDGAR |