Exhibit 99.1
JOINT FILERS’ SIGNATURES
ESSETIFIN S.P.A.
By: | /s/ Marino Zigrossi | |
Name: | Marino Zigrossi | |
Title: | Managing Director | |
Date: | March 14, 2018 |
Enrico Cavazza
By: | /s/ Marino Zigrossi | |
Name: | Marino Zigrossi | |
Title: | Attorney-in-fact** | |
Date: | March 14, 2018 |
Francesca Cavazza
By: | /s/ Marino Zigrossi | |
Name: | Marino Zigrossi | |
Title: | Attorney-in-fact** | |
Date: | March 14, 2018 |
Silvia Cavazza
By: | /s/ Marino Zigrossi | |
Name: | Marino Zigrossi | |
Title: | Attorney-in-fact** | |
Date: | March 14, 2018 |
Martina Cavazza Preta
By: | /s/ Marino Zigrossi | |
Name: | Marino Zigrossi | |
Title: | Attorney-in-fact** | |
Date: | March 14, 2018 |
Paolo Cavazza
By: | /s/ Fabio Poma | |
Name: | Fabio Poma | |
Title: | Attorney-in-fact | |
Date: | March 14, 2018 |
** Power of attorney was previously filed with Securities and Exchange Commission as an exhibit to the Form 3/A filed on October 4, 2017, with respect to the common stock of Fennec Pharmaceuticals, Inc.