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Prothena Corp Public Ltd Co

PRTA
Exchange
Nasdaq
Industry
Pharmaceutical Preparations
SEC CIK
0001559053

In the last 90 days, Prothena Corp Public Ltd Co insiders filed 10 open-market purchases and 0 sales; 189 institutions reported holding it in 13F filings for Q2 2026, worth $462.7M in total; no superinvestor holds it.

SEC filings

10-K, 10-Q, 8-K, 20-F and 40-F reports Prothena Corp Public Ltd Co filed with the SEC, newest first.

Livermore lists each filing's form, 8-K items and dates only. To read a filing, open it on SEC.gov; an 8-K's press release or other attachments, such as exhibit 99.1 for Item 2.02, are in the filing index.

SEC filings by Prothena Corp Public Ltd Co
FiledForm8-K itemsPeriodDocumentFiling index
Nov 5, 202610-Q–Sep 30, 2026SECIndex
Nov 5, 20268-K2.029.01Nov 5, 2026SECIndex
Oct 29, 20268-K1.029.01Oct 28, 2026SECIndex
Oct 2, 20268-K5.02Oct 2, 2026SECIndex
Aug 6, 202610-Q–Jun 30, 2026SECIndex
Aug 6, 20268-K2.029.01Aug 6, 2026SECIndex
May 15, 20268-K5.07May 14, 2026SECIndex
May 7, 202610-Q–Mar 31, 2026SECIndex
May 7, 20268-K2.029.01May 7, 2026SECIndex
Feb 27, 20268-K7.018.019.01Feb 27, 2026SECIndex
Feb 27, 202610-K–Dec 31, 2025SECIndex
Feb 19, 20268-K2.029.01Feb 19, 2026SECIndex
Dec 12, 20258-K5.029.01Dec 10, 2025SECIndex
Nov 19, 20258-K5.079.01Nov 19, 2025SECIndex
Nov 6, 202510-Q–Sep 30, 2025SECIndex
Nov 6, 20258-K2.029.01Nov 6, 2025SECIndex
Aug 27, 20258-K8.019.01Aug 27, 2025SECIndex
Aug 6, 20258-K8.019.01Aug 6, 2025SECIndex
Aug 4, 202510-Q–Jun 30, 2025SECIndex
Aug 4, 20258-K2.029.01Aug 4, 2025SECIndex
Jul 30, 20258-K5.029.01Jul 30, 2025SECIndex
Jun 18, 20258-K2.055.02Jun 13, 2025SECIndex
Jun 16, 20258-K8.019.01Jun 15, 2025SECIndex
May 23, 20258-K8.019.01May 23, 2025SECIndex
May 16, 20258-K5.025.079.01May 13, 2025SECIndex
May 8, 202510-Q–Mar 31, 2025SECIndex
May 8, 20258-K2.029.01May 8, 2025SECIndex
Feb 27, 202510-K–Dec 31, 2024SECIndex
Feb 20, 20258-K2.029.01Feb 20, 2025SECIndex
Dec 30, 20248-K5.02Dec 29, 2024SECIndex
Nov 12, 20248-K2.029.01Nov 12, 2024SECIndex
Nov 12, 202410-Q–Sep 30, 2024SECIndex
Sep 27, 20248-K5.027.019.01Sep 23, 2024SECIndex
Aug 8, 202410-Q–Jun 30, 2024SECIndex
Aug 8, 20248-K2.029.01Aug 8, 2024SECIndex
May 28, 20248-K1.018.01May 24, 2024SECIndex
May 17, 20248-K5.025.079.01May 14, 2024SECIndex
May 8, 202410-Q–Mar 31, 2024SECIndex
May 8, 20248-K2.029.01May 8, 2024SECIndex
Feb 22, 202410-K–Dec 31, 2023SECIndex
Feb 21, 20248-K5.02Feb 21, 2024SECIndex
Feb 15, 20248-K2.029.01Feb 15, 2024SECIndex
Jan 8, 20248-K2.028.019.01Jan 8, 2024SECIndex
Nov 2, 202310-Q–Sep 30, 2023SECIndex
Nov 2, 20238-K2.029.01Nov 2, 2023SECIndex
Aug 3, 202310-Q–Jun 30, 2023SECIndex
Aug 3, 20238-K2.029.01Aug 3, 2023SECIndex
Jul 10, 20238-K1.01Jul 5, 2023SECIndex
May 19, 20238-K5.025.079.01May 16, 2023SECIndex
May 16, 20238-K5.02May 16, 2023SECIndex