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PRTANasdaq
PROTHENA CORP PUBLIC LTD CO
Pharmaceutical Preparations · L2 · CIK 1559053
Develops novel therapies for devastating neurodegenerative and rare amyloid diseases by targeting protein dysregulation
$432M
Market cap
$9.97
Last close
-0.5%
1D
+9.0%
5D
420K
Volume
Price · last 39 sessions-7.6%
May 4L $7.91 · H $11.19Jun 29
301
Total filings
May 15, 2026
Last filing
12/31
Fiscal year end
8-KShareholder VoteMay 15, 202610-Q10-QMay 7, 20268-KResults of OperationsMay 7, 2026DEFA14ADEFA14AMar 27, 2026DEF 14ADEF 14AMar 27, 20268-KReg FD Disclosure · Company UpdateFeb 27, 202610-K10-KFeb 27, 20268-KResults of OperationsFeb 19, 20268-KExecutive ChangeDec 12, 20258-KShareholder VoteNov 19, 202510-Q10-QNov 6, 2025DEFA14ADEFA14ANov 6, 20258-KResults of OperationsNov 6, 2025DEFA14ADEFA14AOct 7, 2025DEF 14ADEF 14AOct 7, 20258-KCompany UpdateAug 27, 20258-KCompany UpdateAug 6, 202510-Q10-QAug 4, 20258-KResults of OperationsAug 4, 20258-KExecutive ChangeJul 30, 20258-KExecutive Change · Exit / Disposal CostsJun 18, 20258-KCompany UpdateJun 16, 20258-KCompany UpdateMay 23, 20258-KExecutive Change · Shareholder VoteMay 16, 202510-Q10-QMay 8, 20258-KResults of OperationsMay 8, 2025DEFA14ADEFA14AMar 28, 2025DEF 14ADEF 14AMar 28, 202510-K10-KFeb 27, 20258-KResults of OperationsFeb 20, 20258-KExecutive ChangeDec 30, 20248-KResults of OperationsNov 12, 202410-Q10-QNov 12, 2024SC 13GSEC SCHEDULE 13GNov 8, 20248-KExecutive Change · Reg FD DisclosureSep 27, 202410-Q10-QAug 8, 20248-KResults of OperationsAug 8, 20248-KMaterial Agreement · Company UpdateMay 28, 20248-KExecutive Change · Shareholder VoteMay 17, 202410-Q10-QMay 8, 20248-KResults of OperationsMay 8, 2024DEFA14ADEFA14AMar 29, 2024DEF 14ADEF 14AMar 29, 202410-K10-KFeb 22, 20248-KExecutive ChangeFeb 21, 20248-KResults of OperationsFeb 15, 2024SC 13GSC 13GFeb 14, 2024SC 13GSC 13GFeb 14, 2024SC 13GSC 13GJan 24, 20248-KResults of Operations · Company UpdateJan 8, 202410-Q10-QNov 2, 20238-KResults of OperationsNov 2, 202310-Q10-QAug 3, 20238-KResults of OperationsAug 3, 20238-KMaterial AgreementJul 10, 20238-KExecutive Change · Shareholder VoteMay 19, 20238-KExecutive ChangeMay 16, 202310-Q10-QMay 4, 20238-KResults of OperationsMay 4, 20238-KExecutive ChangeApr 28, 2023DEFA14ADEF14AMar 31, 2023DEF 14ADEF 14AMar 31, 20238-KReg FD DisclosureMar 10, 202310-K10-KFeb 28, 20238-KResults of OperationsFeb 23, 20238-KCompany UpdateDec 16, 2022424B5424B5Dec 16, 2022424B5424B5Dec 13, 20228-KCompany UpdateNov 21, 202210-Q10-QNov 3, 20228-KResults of OperationsNov 3, 20228-KMaterial AgreementOct 31, 20228-KExecutive ChangeSep 1, 202210-Q10-QAug 8, 20228-KResults of OperationsAug 8, 2022SC 13GSC 13GJun 27, 20228-KExecutive Change · Shareholder VoteMay 20, 202210-Q10-QMay 5, 20228-KResults of OperationsMay 5, 2022DEFA14ADEFA14AMay 5, 2022
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