| SC 13G | 2014-12-04 | PRIMECAP MANAGEMENT CO/CA/ | Epizyme, Inc. | 2,895,262 | 8.5% | EDGAR |
| SC 13D/A | 2014-08-26 | BAY CITY CAPITAL LLC | Epizyme, Inc. | 2,850,395 | 8.5% | EDGAR |
| SC 13D/A | 2014-08-21 | NEW ENTERPRISE ASSOCIATES 13 LP | Epizyme, Inc. | 5,149,740 | 15.3% | EDGAR |
| SC 13G/A | 2014-03-10 | FMR LLC | Epizyme, Inc. | 3,614,916 | 11.4% | EDGAR |
| SC 13G | 2014-02-14 | FMR LLC | Epizyme, Inc. | 1,996,883 | 7.0% | EDGAR |
| SC 13G | 2014-02-14 | KLEINER PERKINS CAUFIELD & BYERS XIII, LLC | Epizyme, Inc. | 4,226,751 | 14.8% | EDGAR |
| SC 13G | 2014-02-12 | MPM BioVentures IV QP LP | Epizyme, Inc. | 2,328,958 | 8.2% | EDGAR |
| SC 13G | 2014-02-12 | Celgene European Investment Co LLC | Epizyme, Inc. | 3,607,974 | - | EDGAR |
| SC 13D/A | 2014-02-10 | BAY CITY CAPITAL LLC | Epizyme, Inc. | 3,209,728 | 10.1% | EDGAR |
| SC 13D | 2013-11-21 | NEW ENTERPRISE ASSOCIATES 13 LP | Epizyme, Inc. | 6,439,740 | 22.7% | EDGAR |
| SC 13D | 2013-06-07 | BAY CITY CAPITAL LLC | Epizyme, Inc. | 3,676,395 | 12.9% | EDGAR |