EX-21.1 4 a2227494zex-21_1.htm EX-21.1
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Exhibit 21.1

Significant Subsidiaries of PTC Therapeutics, Inc.

|  | Jurisdiction of Incorporation or Organization
--- | --- | ---
PTC Therapeutics Holdings (Bermuda) Corp. Limited |  | Bermuda
PTC Therapeutics International Limited |  | Ireland

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Exhibit 21.1

Significant Subsidiaries of PTC Therapeutics, Inc.