Exhibit 99.1
JOINT FILING AGREEMENT
The undersigned hereby agree that the statement on Schedule 13D with respect to the common stock, par value $0.01 per share, of Ceres, Inc. dated March 2, 2012, is, and any amendments thereto signed by each of the undersigned shall be, filed on behalf of each of the undersigned pursuant to and in accordance with the provisions of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended.
| ARTAL LUXEMBOURG S.A. | ||
| By: | /s/ Anne Goffard | |
| Name: | Anne Goffard | |
| Title: | Managing Director | |
| ARTAL INTERNATIONAL S.C.A. | ||
| By: | /s/ Anne Goffard | |
| Name: | Anne Goffard | |
| Title: | Managing Director of Artal International Management S.A., Managing Partner of Artal International S.C.A. | |
| ARTAL INTERNATIONAL MANAGEMENT S.A. | ||
| By: | /s/ Anne Goffard | |
| Name: | Anne Goffard | |
| Title: | Managing Director | |
| ARTAL GROUP S.A. | ||
| By: | /s/ Pascal Minne | |
| Name: | Mr. Pascal Minne | |
| Title: | Director | |
| WESTEND S.A. | ||
| By: | /s/ Pascal Minne | |
| Name: | Mr. Pascal Minne | |
| Title: | Director | |
| STICHTING ADMINISTRATIEKANTOOR WESTEND | ||
| By: | /s/ Pascal Minne | |
| Name: | Mr. Pascal Minne | |
| Title: | Sole Member of the Board | |
| MR. PASCAL MINNE |
| /s/ Pascal Minne |
Dated: March 2, 2012
