Exhibit 99.1
This Statement on Form 4 is filed by the Reporting Persons listed below.
Name of Designated Filer: ARTAL INTERNATIONAL S.C.A.
Date of Event Requiring Statement: December 16, 2020.
Issuer Name: Lexicon Pharmaceuticals, Inc. [LXRX]
ARTAL INTERNATIONAL S.C.A.
By: ARTAL INTERNATIONAL MANAGEMENT S.A.,
its general partner
By: /s/ Anne Goffard
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Name: Anne Goffard
Title: Managing Director
ARTAL INTERNATIONAL MANAGEMENT S.A.
By: /s/ Anne Goffard
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Name: Anne Goffard
Title: Managing Director
ARTAL GROUP S.A
By: /s/ Anne Goffard
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Name: Anne Goffard
Title: Authorized Person
WESTEND S.A.
By: /s/ Pascal Minne
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Name: Pascal Minne
Title: Director
STICHTING ADMINISTRATIEKANTOOR WESTEND
By: /s/ Pascal Minne
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Name: Pascal Minne
Title: Sole Member of the Board
PASCAL MINNE
By: /s/ Pascal Minne
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