EXHIBIT A JOINT FILING AGREEMENT
EXHIBIT A
The undersigned hereby agree that the statement on Schedule 13G with respect to the Common Stock of Zafgen, Inc. dated
as of September 16, 2019 is, and any further 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)(2) under the Securities
Exchange Act of 1934, as amended.
Dated: September 16, 2019
| 683 CAPITAL MANAGEMENT, LLC* |
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By:
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/s/ Xxx Xxxxxxx | |
| Xxx Xxxxxxx |
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| Authorized Person |
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| 683 CAPITAL PARTNERS, LP* | |||
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By:
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/s/ Xxx Xxxxxxx | |
| Xxx Xxxxxxx | |||
| Authorized Person | |||
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/s/ Xxx Xxxxxxx | ||
| XXX XXXXXXX * | |||
