EXHIBIT 1.01
Joint Filing Agreement
The undersigned hereby agree that the Statement on Schedule 13D to which this Joint Filing Agreement is annexed as Exhibit 1.01, and any amendments thereto, is and will be filed on behalf of each of them in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.
Dated: March 14, 2019
| Biogen Inc. | ||||
| By: | /s/ James Basta | |||
| Name: | James Basta | |||
| Title: | Chief Corporation Counsel and Assistant Secretary | |||
| Biogen Switzerland Holdings GmbH | ||||
| By: | /s/ Frederick Lawson | |||
| Name: | Frederick Lawson | |||
| Title: | Managing Director | |||
