UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM
10-Q/A
(Mark One)
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QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
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For the quarterly period ended March 31, 2018
Or
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TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
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Commission file number:
001-35676
PROTHENA CORPORATION PUBLIC LIMITED COMPANY
(Exact name of registrant as specified in its charter)
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Ireland
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98-1111119
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(State or other jurisdiction of
incorporation or organization)
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(I.R.S. Employer
Identification Number)
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Adelphi Plaza
Upper Georges Street
Dún Laoghaire
Co.
Dublin, A96 T927, Ireland
(Address of principal executive offices including Zip Code)
Registrants telephone number, including area code:
011-353-1-236-2500
Indicate by
check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to
file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ☒ No ☐
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data
File required to be submitted and posted pursuant to Rule 405 of Regulation
S-T
during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such
files). Yes ☒ No ☐
Indicate by check mark whether the
registrant is a large accelerated filer, an accelerated filer, a
non-accelerated
filer, or a smaller reporting company. See definitions of large accelerated filer, accelerated filer,
smaller reporting company and emerging growth company in
Rule 12b-2
of the Exchange Act.
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Large accelerated filer
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Accelerated filer
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Non-accelerated filer
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☐ (Do not check if a smaller reporting company)
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Smaller reporting company
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Emerging growth company
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If an emerging growth company that prepares its financial statements in accordance with U.S. GAAP, indicate by
check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate by check mark whether the registrant is a shell company (as defined in
Rule 12b-2
of the
Exchange Act). Yes ☐ No ☒
The number of ordinary shares
outstanding as of April 20, 2018 was 39,822,336.