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Prothena Corp. (PRTA)

9.82 +0.22 (2.29%)

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- Earnings (10/29/26)

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Form 4 PROTHENA CORP PUBLIC For: Aug 20 Filed by: SCULLY WILLIAM P August 21, 2026 2:33 PM - SEC Filing Form SCHEDULE 13G/A PROTHENA CORP PUBLIC Filed by: Fennell Todd W. August 19, 2026 10:19 AM - SEC Filing Form 3 PROTHENA CORP PUBLIC For: Aug 18 Filed by: Fennell Todd W. August 18, 2026 4:17 PM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Aug 18 Filed by: SCULLY WILLIAM P August 18, 2026 4:03 PM - SEC Filing Form SCHEDULE 13G/A PROTHENA CORP PUBLIC Filed by: Fennell Todd W. August 14, 2026 9:10 AM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Aug 10 Filed by: SCULLY WILLIAM P August 11, 2026 4:08 PM - SEC Filing Form 3 PROTHENA CORP PUBLIC For: Aug 06 Filed by: Fennell Todd W. August 11, 2026 9:38 AM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Aug 07 Filed by: SCULLY WILLIAM P August 10, 2026 3:25 PM - SEC Filing Form 10-Q PROTHENA CORP PUBLIC For: Jun 30 August 6, 2026 4:29 PM - SEC Filing Form 8-K PROTHENA CORP PUBLIC For: Aug 06 August 6, 2026 4:22 PM - SEC Filing Prothena Reports Second Quarter 2026 Financial Results and Business Highlights August 6, 2026 4:05 PM - BizWire Form SCHEDULE 13G/A PROTHENA CORP PUBLIC Filed by: FMR LLC August 6, 2026 10:39 AM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Jul 28 Filed by: Zago Wagner M. July 30, 2026 8:35 PM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Jul 28 Filed by: Walker Karin L July 30, 2026 8:34 PM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Jul 28 Filed by: Swanson Chad J. July 30, 2026 8:34 PM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Jul 28 Filed by: Smith Brandon S. July 30, 2026 8:33 PM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Jul 28 Filed by: Nguyen Tran July 30, 2026 8:33 PM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Jul 28 Filed by: Kinney Gene G. July 30, 2026 8:32 PM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Jul 28 Filed by: Kingston Anne Evans July 30, 2026 8:31 PM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Jul 28 Filed by: Isaacs Michael John July 30, 2026 8:30 PM - SEC Filing Prothena to Report Second Quarter 2026 Financial Results on August 6 July 30, 2026 4:05 PM - BizWire Form 144 PROTHENA CORP PUBLIC Filed by: Kingston Anne Evans July 29, 2026 4:13 PM - SEC Filing Form 144 PROTHENA CORP PUBLIC Filed by: Isaacs Michael John July 29, 2026 4:12 PM - SEC Filing Form SCHEDULE 13G/A PROTHENA CORP PUBLIC Filed by: BlackRock, Inc. July 29, 2026 3:20 PM - SEC Filing H.C. Wainwright Reiterates Buy Rating on Prothena Corp (PRTA) July 24, 2026 7:28 AM - StreetInsider Form 4 PROTHENA CORP PUBLIC For: Jun 16 Filed by: SCULLY WILLIAM P June 18, 2026 11:39 AM - SEC Filing Prothena Corp. (PRTA) 2K contracts of December 6 puts trade June 17, 2026 6:36 AM - StreetInsider Form 4 PROTHENA CORP PUBLIC For: Jun 15 Filed by: SCULLY WILLIAM P June 16, 2026 4:59 PM - SEC Filing Form 4 PROTHENA CORP PUBLIC For: Jun 11 Filed by: SCULLY WILLIAM P June 12, 2026 6:00 PM - SEC Filing Form 3 PROTHENA CORP PUBLIC For: Jun 08 Filed by: Isaacs Michael John June 12, 2026 4:19 PM - SEC Filing Form 144 PROTHENA CORP PUBLIC Filed by: Malecek Michael J June 9, 2026 8:01 AM - SEC Filing Full Article List