Exhibit A
AGREEMENT AS TO JOINT FILING OF SCHEDULE 13G
The undersigned hereby agree that the Schedule 13G relating to the common stock of OptiNose, Inc., and any further amendments thereto, to which this Agreement as to Joint Filing of Schedule 13G is attached as an exhibit is filed on behalf of each of them pursuant to and in accordance with the provisions of Rule13d-1(k) under the Securities Exchange Act of 1934, as amended.
Date: February 6, 2018
| AVISTA CAPITAL PARTNERS II GP, LLC | ||
| By: | /s/ Ben Silbert | |
| Name: | Ben Silbert | |
| Title: | Authorized Representative | |
| AVISTA CAPITAL PARTNERS II, L.P. | ||
| By: | Avista Capital Partners II GP, LLC its General Partner | |
| By: | /s/ Ben Silbert | |
| Name: | Ben Silbert | |
| Title: | Authorized Representative | |
| AVISTA CAPITAL PARTNERS (OFFSHORE) II, L.P. | ||
| By: | Avista Capital Partners II GP, LLC its General Partner | |
| By: | /s/ Ben Silbert | |
| Name: | Ben Silbert | |
| Title: | Authorized Representative | |
| AVISTA CAPITAL PARTNERS (OFFSHORE)II-A, L.P. | ||
| By: | Avista Capital Partners II GP, LLC its General Partner | |
| By: | /s/ Ben Silbert | |
| Name: | Ben Silbert | |
| Title: | Authorized Representative | |
