| SC 13G/A | 2016-02-16 | RA CAPITAL MANAGEMENT, LLC | ZOGENIX, INC. | 2,253,237 | 9.1% | EDGAR |
| SC 13G/A | 2016-02-12 | FMR LLC | ZOGENIX, INC. | 3,452,521 | 13.6% | EDGAR |
| SC 13G/A | 2016-02-12 | Broadfin Capital, LLC | ZOGENIX, INC. | 1,087,112 | 4.4% | EDGAR |
| SC 13G/A | 2016-02-12 | FEDERATED INVESTORS INC /PA/ | ZOGENIX, INC. | 3,372,356 | 13.0% | EDGAR |
| SC 13G | 2016-01-28 | BlackRock Inc. | ZOGENIX, INC. | 1,610,823 | 6.5% | EDGAR |
| SC 13G/A | 2016-01-20 | INTEGRATED CORE STRATEGIES (US) LLC | ZOGENIX, INC. | 224,386 | 0.0% | EDGAR |
| SC 13G/A | 2016-01-12 | SABBY MANAGEMENT, LLC | ZOGENIX, INC. | 1,518,200 | 6.1% | EDGAR |
| SC 13G | 2015-10-08 | RA CAPITAL MANAGEMENT, LLC | ZOGENIX, INC. | 1,840,716 | 7.5% | EDGAR |
| SC 13G | 2015-10-05 | GREAT POINT PARTNERS LLC | ZOGENIX, INC. | 1,466,357 | 5.9% | EDGAR |
| SC 13G/A | 2015-09-10 | FMR LLC | ZOGENIX, INC. | 3,023,812 | 12.0% | EDGAR |
| SC 13G | 2015-07-23 | INTEGRATED CORE STRATEGIES (US) LLC | ZOGENIX, INC. | 621,185 | 3.2% | EDGAR |
| SC 13G/A | 2015-04-09 | FEDERATED INVESTORS INC /PA/ | ZOGENIX, INC. | 21,048,000 | 12.9% | EDGAR |
| SC 13G | 2015-03-18 | Broadfin Capital, LLC | ZOGENIX, INC. | 10,737,645 | 7.0% | EDGAR |
| SC 13G | 2015-03-12 | SABBY MANAGEMENT, LLC | ZOGENIX, INC. | 9,903,343 | 6.5% | EDGAR |
| SC 13G/A | 2015-02-17 | ARMISTICE CAPITAL, LLC | ZOGENIX, INC. | 9,400,000 | 6.1% | EDGAR |
| SC 13G/A | 2015-02-13 | Visium Asset Management, LP | ZOGENIX, INC. | 0 | 0.0% | EDGAR |
| SC 13G/A | 2015-02-11 | FEDERATED INVESTORS INC /PA/ | ZOGENIX, INC. | 34,514,700 | 21.2% | EDGAR |
| SC 13G | 2014-10-27 | Visium Asset Management, LP | ZOGENIX, INC. | 7,500,000 | 5.3% | EDGAR |
| SC 13G | 2014-08-25 | ARMISTICE CAPITAL, LLC | ZOGENIX, INC. | 8,300,000 | 5.9% | EDGAR |
| SC 13G/A | 2014-02-14 | FMR LLC | ZOGENIX, INC. | 11,621,147 | 8.4% | EDGAR |