We identified 10 PD patients with exon dosage alterations in PARK2, GBA‐GBAP1, and DJ1. Additional functional variants, including 2 novel nonsense mutations (p.Arg1552Ter in LRRK2 and p.Trp90Ter in PINK1), were confirmed by Sanger sequencing. This evidence concerns the gene PRKN and Parkinson disease.