JOINT FILING AGREEMENT
EXHIBIT 1
Pursuant to Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, the undersigned hereby agree that only one statement containing the information required by Schedule 13D need be filed with respect to the ownership by each of the undersigned of shares of stock of Agios Pharmaceuticals, Inc.
EXECUTED this 6th day of August, 2013.
| CELGENE EUROPEAN INVESTMENT COMPANY LLC | ||||
| By: | Celgene International Sárl | |||
| By: | /s/ Xxxxxx X. Hugin | |||
| Xxxxxx X. Hugin | ||||
| Manager | ||||
| CELGENE ALPINE INVESTMENT CO., LLC | ||||
| By: | Celgene International Sárl | |||
| By: | /s/ Xxxxxx X. Hugin | |||
| Xxxxxx X. Hugin | ||||
| Manager | ||||
| CELGENE CORPORATION | ||||
| By: | /s/ Xxxxxx X. Hugin | |||
| Xxxxxx X. Hugin | ||||
| Chief Executive Officer | ||||
