Prothena Corporation plc
77 Sir Rogerson’s Quay, Block C
Grand Canal Docklands
Dublin 2, D02 T804, Ireland
December 10, 2019
VIA EDGAR
Securities and Exchange Commission
Division of Corporation Finance
100 F Street, N.E.
Washington, DC 20549
| Attention: | Sonia Bednarowski Justin Dobbie |
| Re: | Prothena Corporation plc Registration Statement on Form S-3 (Registration No. 333-231675) |
Ladies and Gentlemen:
In accordance with Rule 461 of Regulation C of the General Rules and Regulations under the Securities Act of 1933, as amended, we hereby request acceleration by the Securities and Exchange Commission (the “Commission”) of the effective date of the above-referenced Registration Statement on Form S-3 (the “Registration Statement”) of Prothena Corporation plc (the “Company”). We respectfully request that the Registration Statement become effective as of 4:00 p.m., Washington, D.C. time, on December 12, 2019, or as soon as practicable thereafter.
Thank you for your assistance in this matter.
| Very truly yours, | ||
| Prothena Corporation plc | ||
| By: | /s/ Michael J. Malecek | |
| Michael J. Malecek | ||
| Chief Legal Officer | ||
[Signature Page to Prothena Corporation plc Acceleration Letter]
