PROTHENA CORP PUBLIC LTD CO — Director's Dealing 2012

Dec 21, 2012

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Prothena Corp plc (PRTA)
CIK: 0001559053
Period of Report: 2012-12-20

Reporting Person: Ekman Lars (Director)

Holdings (Non-Derivative)

Security	Shares	Ownership
Ordinary Shares, par value $0.01 per share	243	Direct

Footnotes

F1: Represents that number of Issuer's ordinary shares held by Reporting Person after giving effect to the distribution of Issuer's ordinary shares in connection with the spin-off of the Issuer from Elan Pharmaceuticals, Inc. ("Elan") completed on December 20, 2012. Reporting Person received one Issuer ordinary share for each 41 Elan ordinary shares or Elan American Depository Shares held by Reporting Person as of December 14, 2012, the record date for the spin off.