ANALYST COVERAGE

Prothena Corporation plc is covered by the following analysts.

Firm Analyst Contact Information
Bank of America Merrill Lynch
Tazeen Ahmad
Barclays
Geoff Meacham, Ph.D.
BTIG
Robert (Bert) Hazlett
Cantor Fitzgerald
William Tanner, Ph.D.
Evercore ISI
Steven Breazzano
Jefferies
Michael J. Yee
Nomura | Instinet
Christopher Marai, Ph.D.
Oppenheimer
Jay Olson CFA
RBC Capital Markets
Kennen MacKay
Wedbush Securities
David M. Nierengarten, Ph.D.

Prothena Corporation plc is followed by the analysts listed above. Please note that any opinions, estimates or forecasts regarding Prothena Corporation plc's performance made by these analysts are theirs alone and do not represent opinions, forecasts or predictions of Prothena Corporation plc or its management. Prothena Corporation plc does not by its reference above or distribution imply its endorsement of or concurrence with such information, conclusions or recommendations.