| SC 13G/A | 2020-02-14 | GREAT POINT PARTNERS LLC | ZOGENIX, INC. | 670,000 | 1.5% | EDGAR |
| SC 13G/A | 2020-02-14 | PERCEPTIVE ADVISORS LLC | ZOGENIX, INC. | 3,709,152 | 8.4% | EDGAR |
| SC 13G/A | 2020-02-13 | CADIAN CAPITAL MANAGEMENT, LP | ZOGENIX, INC. | 2,177,056 | 4.9% | EDGAR |
| SC 13G | 2020-02-11 | VANGUARD GROUP INC | ZOGENIX, INC. | 3,177,976 | 7.2% | EDGAR |
| SC 13G/A | 2020-02-07 | FMR LLC | ZOGENIX, INC. | 6,638,208 | 15.0% | EDGAR |
| SC 13G/A | 2020-02-06 | BlackRock Inc. | ZOGENIX, INC. | 3,534,636 | 8.0% | EDGAR |
| SC 13G | 2020-02-04 | EVENTIDE ASSET MANAGEMENT, LLC | ZOGENIX, INC. | 2,841,300 | 6.4% | EDGAR |
| SC 13G/A | 2020-01-10 | SCOPIA CAPITAL MANAGEMENT LP | ZOGENIX, INC. | 919,484 | 2.1% | EDGAR |
| SC 13G | 2019-09-16 | GREAT POINT PARTNERS LLC | ZOGENIX, INC. | 2,250,000 | 5.3% | EDGAR |
| SC 13G/A | 2019-04-10 | Bank of New York Mellon Corp | ZOGENIX, INC. | 1,856,965 | 4.4% | EDGAR |
| SC 13G/A | 2019-02-14 | PERCEPTIVE ADVISORS LLC | ZOGENIX, INC. | 3,790,216 | 9.0% | EDGAR |
| SC 13G | 2019-02-14 | RA CAPITAL MANAGEMENT, LLC | ZOGENIX, INC. | 2,382,168 | 5.7% | EDGAR |
| SC 13G | 2019-02-13 | CADIAN CAPITAL MANAGEMENT, LP | ZOGENIX, INC. | 2,718,946 | 6.5% | EDGAR |
| SC 13G/A | 2019-02-11 | FMR LLC | ZOGENIX, INC. | 4,556,283 | 10.9% | EDGAR |
| SC 13G | 2019-02-08 | FMR LLC | ZOGENIX, INC. | 4,184,131 | 10.0% | EDGAR |
| SC 13G/A | 2019-02-06 | BlackRock Inc. | ZOGENIX, INC. | 3,582,746 | 8.5% | EDGAR |
| SC 13G | 2019-02-04 | Bank of New York Mellon Corp | ZOGENIX, INC. | 2,509,486 | 6.0% | EDGAR |
| SC 13G/A | 2019-01-10 | SCOPIA CAPITAL MANAGEMENT LP | ZOGENIX, INC. | 2,985,834 | 7.1% | EDGAR |
| SC 13G/A | 2018-09-10 | SCOPIA CAPITAL MANAGEMENT LP | ZOGENIX, INC. | 5,306,514 | 12.7% | EDGAR |
| SC 13G/A | 2018-02-14 | GREAT POINT PARTNERS LLC | ZOGENIX, INC. | 1,121,331 | 3.3% | EDGAR |