PRTA - Prothena to Participate in Jefferies 2023 Healthcare Conference

Prothena Corporation plc (NASDAQ:PRTA), a late-stage clinical biotechnology company with a robust pipeline of investigational therapeutics built on protein dysregulation expertise, today announced that members of its senior management team will participate in a fireside chat at the Jefferies Healthcare Conference on Thursday, June 8, 2023, at 1:00 pm ET.

A live webcast of the fireside chat can be accessed through the investor relations section of the Company's website at www.prothena.com . Following the live presentation, a replay of the webcast will be available on the Company's website for at least 90 days following the presentation date.

About Prothena

Prothena Corporation plc is a late-stage clinical biotechnology company with expertise in protein dysregulation and a pipeline of investigational therapeutics with the potential to change the course of devastating neurodegenerative and rare peripheral amyloid diseases. Fueled by its deep scientific expertise built over decades of research, Prothena is advancing a pipeline of therapeutic candidates for a number of indications and novel targets for which its ability to integrate scientific insights around neurological dysfunction and the biology of misfolded proteins can be leveraged. Prothena’s pipeline includes both wholly-owned and partnered programs being developed for the potential treatment of diseases including AL amyloidosis, ATTR amyloidosis, Alzheimer’s disease, Parkinson’s disease and a number of other neurodegenerative diseases. For more information, please visit the Company’s website at www.prothena.com and follow the Company on Twitter @ProthenaCorp.

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Investor and Media Contacts:

Investors
IR@prothena.com

Media
Michael Bachner, Senior Director, Corporate Communications
609-664-7308, michael.bachner@prothena.com