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PROTHENA CORP PUBLIC LTD CO (PRTA) reporting calendar

PROTHENA CORP PUBLIC LTD CO files periodic reports with the SEC as PRTA on Nasdaq. Atlas tracks 54 filed reports for this issuer, each linked to its original EDGAR accession.

Next window
27 Jul 2026 – 18 Aug 2026
Latest report
10-Q
Period ended
31 Mar 2026
Filed
7 May 2026
Reports on record
54

How this window is derived. Derived from this issuer's own filing history: 9 periods at a median 91-day cadence, filed a median 38 days after period end. The SEC does not publish forward reporting dates and Atlas does not estimate one.

Open PRTA market profile Latest filing on SEC EDGAR ↗ Pharmaceutical Preparations reporting datesAll Nasdaq reporting dates

Filed periodic reports

FormPeriod endedFiledLagSEC accession
10-Q31 Mar 20267 May 202637 days0001559053-26-000017
10-K31 Dec 202527 Feb 202658 days0001559053-26-000008
10-Q30 Sep 20256 Nov 202537 days0001559053-25-000044
10-Q30 Jun 20254 Aug 202535 days0001559053-25-000031
10-Q31 Mar 20258 May 202538 days0001559053-25-000023
10-K31 Dec 202427 Feb 202558 days0001559053-25-000009
10-Q30 Sep 202412 Nov 202443 days0001559053-24-000032
10-Q30 Jun 20248 Aug 202439 days0001559053-24-000025
10-Q31 Mar 20248 May 202438 days0001559053-24-000014
10-K31 Dec 202322 Feb 202453 days0001559053-24-000008
10-Q30 Sep 20232 Nov 202333 days0001559053-23-000033
10-Q30 Jun 20233 Aug 202334 days0001559053-23-000026
10-Q31 Mar 20234 May 202334 days0001559053-23-000016
10-K31 Dec 202228 Feb 202359 days0001559053-23-000005
10-Q30 Sep 20223 Nov 202234 days0001559053-22-000045
10-Q30 Jun 20228 Aug 202239 days0001559053-22-000032
10-Q31 Mar 20225 May 202235 days0001559053-22-000023
10-K31 Dec 202125 Feb 202256 days0001559053-22-000008
10-Q30 Sep 20214 Nov 202135 days0001559053-21-000045
10-Q30 Jun 20215 Aug 202136 days0001559053-21-000037
10-Q31 Mar 202111 May 202141 days0001559053-21-000016
10-K31 Dec 202026 Feb 202157 days0001559053-21-000008
10-Q30 Sep 20204 Nov 202035 days0001559053-20-000040
10-Q30 Jun 20206 Aug 202037 days0001559053-20-000026
10-Q31 Mar 20206 May 202036 days0001559053-20-000013
10-K31 Dec 20193 Mar 202063 days0001559053-20-000005
10-Q30 Sep 20195 Nov 201936 days0001559053-19-000035
10-Q30 Jun 20196 Aug 201937 days0001559053-19-000023
10-Q31 Mar 20197 May 201937 days0001559053-19-000013
10-K31 Dec 201815 Mar 201974 days0001559053-19-000007
10-Q30 Sep 20186 Nov 201837 days0001559053-18-000034
10-Q30 Jun 20187 Aug 201838 days0001559053-18-000025
10-Q31 Mar 20189 May 201839 days0001559053-18-000014
10-K31 Dec 201726 Feb 201857 days0001559053-18-000008
10-Q30 Sep 20177 Nov 201738 days0001559053-17-000031
10-Q30 Jun 20179 Aug 201740 days0001559053-17-000025
10-Q31 Mar 20179 May 201739 days0001559053-17-000013
10-K31 Dec 201627 Feb 201758 days0001559053-17-000005
10-Q30 Sep 20162 Nov 201633 days0001559053-16-000084
10-Q30 Jun 20162 Aug 201633 days0001559053-16-000074

Source: SEC EDGAR company submissions for CIK 0001559053. Atlas publishes filed facts only. The SEC does not publish forward reporting dates, so no announced future date is claimed here.