| SC 13G | 2015-02-04 | FRANKLIN RESOURCES INC | ARATANA THERAPEUTICS, INC. | 3,324,006 | 9.6% | EDGAR |
| SC 13G | 2014-10-10 | WELLINGTON MANAGEMENT CO LLP | ARATANA THERAPEUTICS, INC. | 3,750,435 | 11.0% | EDGAR |
| SC 13D/A | 2014-04-10 | MPM BIOVENTURES V, L.P. | ARATANA THERAPEUTICS, INC. | 1,979,668 | 6.7% | EDGAR |
| SC 13D/A | 2014-03-14 | MPM BIOVENTURES V, L.P. | ARATANA THERAPEUTICS, INC. | 2,647,974 | 9.1% | EDGAR |
| SC 13G | 2014-02-13 | MEEUSEN RONALD L | ARATANA THERAPEUTICS, INC. | 835,189 | 3.4% | EDGAR |
| SC 13G | 2014-02-12 | PRUDENTIAL FINANCIAL INC | ARATANA THERAPEUTICS, INC. | 1,409,486 | 5.8% | EDGAR |
| SC 13G | 2014-02-11 | JENNISON ASSOCIATES LLC | ARATANA THERAPEUTICS, INC. | 1,659,136 | 5.8% | EDGAR |
| SC 13G/A | 2014-02-07 | ADAGE CAPITAL PARTNERS GP LLC | ARATANA THERAPEUTICS, INC. | 1,275,000 | 5.4% | EDGAR |
| SC 13D/A | 2014-02-06 | Avalon Ventures IX GP, LLC | ARATANA THERAPEUTICS, INC. | 3,345,543 | 13.8% | EDGAR |
| SC 13D | 2013-08-07 | MPM BIOVENTURES V, L.P. | ARATANA THERAPEUTICS, INC. | 4,188,027 | 20.2% | EDGAR |
| SC 13D | 2013-07-08 | Avalon Ventures IX GP, LLC | ARATANA THERAPEUTICS, INC. | 4,170,545 | 21.0% | EDGAR |
| SC 13G | 2013-07-08 | ADAGE CAPITAL PARTNERS GP LLC | ARATANA THERAPEUTICS, INC. | 1,000,000 | 5.0% | EDGAR |