Exhibit A
Joint Filing Agreement
The undersigned hereby agree that the statement on Schedule 13G with respect to the Common Stock, $0.01 par value of Impax Laboratories, Inc. dated as of February 12, 2018, is, and any amendments thereto (including amendments on Schedule 13D) signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934.
Date: February 12, 2018
| | MAVERICK CAPITAL, LTD. | |
| | | | | | |
| | By: | Maverick Capital Management, LLC | |
| | | Its General Partner | |
| | | | | | |
| | | By: | Lee S. Ainslie III, Manager | |
| | | | | |
| | | | | | |
| | | | By: | /s/ John T. McCafferty | |
| | | | | John T. McCafferty | |
| | | | | Under Power of Attorney dated | |
| | | | | February 13, 2003 | |
| | MAVERICK CAPITAL MANAGEMENT, LLC |
| | | | | | |
| | By: | Lee S. Ainslie III, Manager | |
| | | | |
| | | | | | |
| | | By: | /s/ John T. McCafferty | |
| | | | John T. McCafferty | |
| | | | Under Power of Attorney dated | |
| | | | February 13, 2003 | |
| | LEE S. AINSLIE III | |
| | | |
| | | | | | |
| | By: | /s/ John T. McCafferty | |
| | | John T. McCafferty | |
| | | Under Power of Attorney dated | |
| | | February 13, 2003 |
| | ANDREW H. WARFORD | |
| | | |
| | | | | | |
| | By: | /s/ John T. McCafferty | |
| | | John T. McCafferty | |
| | | Under Power of Attorney dated | |
| | | February 11, 2015 |
