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Prothena Corp PLC

9.45

+0.42004.65%

Post-market: 9.450.00000.00%19:30 EDT

Volume:376.04K

Turnover:3.52M

Market Cap:485.13M

PE:-11.34

High:9.52

Open:9.11

Low:9.09

Close:9.03

52wk High:11.80

52wk Low:7.73

Shares:51.34M

Float Shares:39.88M

Volume Ratio:1.13

T/O Rate:0.94%

Dividend:- -

Dividend Rate:- -

EPS(TTM):-0.8337

EPS(LYR):-4.5346

ROE:-14.39%

ROA:-10.67%

PB:1.69

PE(LYR):-2.08

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Overview Company News Filings

Prothena says FDA grants Fast Track designation to Novo Nordisk’s coramitug PRX004 for ATTR-CM

Prothena Corporation Plc - Coramitug Phase 3 Cleopattra Trial Enrolls ~1,280 Participants; Primary Completion Expected in 2029

THOMSON REUTERS

Prothena Announces Novo Nordisk Obtains Fast Track Designation From the U.S. FDA for Coramitug (Prx004) in Attr Amyloidosis With Cardiomyopathy

THOMSON REUTERS

Prothena files Form 3 for Chief Strategy Officer Anne Evans Kingston

Prothena promotes Annie Kingston to chief strategy officer amid legal chief transition

Prothena Announces Leadership Team Updates

THOMSON REUTERS

Prothena announced its annual general meeting of shareholders

Prothena partners present prasinezumab and BMS-986446 clinical study updates at AD/PD 2026

Prothena Corporation plc publishes corporate overview presentation on protein dysregulation disease pipeline and USD 308.4 million cash position

Prothena achieves $50M clinical milestone payment from Novo Nordisk

Prothena earns USD 50 million milestone payment from Novo Nordisk

Prothena Announces Achievement of $50 Million Clinical Milestone Payment From Novo Nordisk Related to Ongoing Phase 3 Clinical Trial for Coramitug (Formerly Prx004) in Attr Amyloidosis With Cardiomyopathy

THOMSON REUTERS

Prothena Corporation Plc - Novo Nordisk Phase 3 Coramitug Trial in Attr-Cm Expected to Complete in 2029

THOMSON REUTERS

Prothena (PRTA) Gets a Sell from Bank of America Securities

Prothena Approves $100 Million Share Buyback Authorization

MT Newswires Live

Prothena expects to end year with $255M in cash, equivalents

Prothena authorizes up to $100.00 million share repurchase plan

Prothena Announces up to $100 Million Share Repurchase Plan

THOMSON REUTERS

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While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Prothena Corporation plc published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission , on April 10, 2026, and is solely responsible for the information contained therein.","market":"fut","thumbnail":null,"type":0,"news_type":0,"thumbnails":[],"rights":null,"property":[],"language":"en","translate_title":"","themeId":null,"theme_name":"","theme_type":"","isJumpTheme":false,"source_url":"https://api.refinitiv.com/data/news/v1/stories/urn:newsml:reuters.com:20260410:nNDL99Bl81:1","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"0","news_top_title":null,"news_tag":"executive","news_rank":0,"length":0,"strategy_id":0,"source":null,"symbols":["PRTA","BK4139"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2626421110","title":"Prothena promotes Annie Kingston to chief strategy officer amid legal chief transition","url":"https://stock-news.laohu8.com/highlight/detail?id=2626421110","media":"Reuters","labels":["executive"],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2626421110?lang=en_us&edition=fundamental","pubTime":"2026-04-11 04:05","pubTimestamp":1775851530,"startTime":"0","endTime":"0","summary":"Prothena promoted Annie Kingston to chief strategy officer, effective immediately.Kingston previously served as vice president, corporate strategy and chief of staff; she joined Prothena in 2023 from ClearView Healthcare Partners, where she was an associate principal and project leader.Michael Isaacs was promoted to general counsel and corporate secretary, effective following Michael Malecek’s departure in June.Isaacs previously served as deputy general counsel; he joined Prothena in 2020 from Arnold & Porter Kaye Scholer, where he was a corporate associate.Chief financial officer Tran Nguyen will remain CFO, following prior dual role as CFO and chief strategy officer.Disclaimer: This news brief was created by Public Technologies  using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Prothena Corporation","market":"fut","thumbnail":null,"type":0,"news_type":0,"thumbnails":[],"rights":null,"property":[],"language":"en","translate_title":"","themeId":null,"theme_name":"","theme_type":"","isJumpTheme":false,"source_url":"https://api.refinitiv.com/data/news/v1/stories/urn:newsml:reuters.com:20260410:nNDL7Fv9Kt:1","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"0","news_top_title":null,"news_tag":"executive","news_rank":0,"length":0,"strategy_id":0,"source":null,"symbols":["PRTA","BK4139"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2626413110","title":"Prothena Announces Leadership Team Updates","url":"https://stock-news.laohu8.com/highlight/detail?id=2626413110","media":"THOMSON REUTERS","labels":[],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2626413110?lang=en_us&edition=fundamental","pubTime":"2026-04-11 04:05","pubTimestamp":1775851500,"startTime":"0","endTime":"0","summary":null,"market":"nz","thumbnail":null,"type":0,"news_type":0,"thumbnails":[],"rights":null,"property":[],"language":"en","translate_title":"","themeId":null,"theme_name":"","theme_type":"","isJumpTheme":false,"source_url":"https://api.refinitiv.com/data/news/v1/stories/urn:newsml:reuters.com:20260410:nTUA2SLXVD:1","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"0","news_top_title":null,"news_tag":"","news_rank":0,"length":0,"strategy_id":0,"source":"reuters_en_live","symbols":["BK4139","PRTA"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2622780660","title":"Prothena announced its annual general meeting of shareholders","url":"https://stock-news.laohu8.com/highlight/detail?id=2622780660","media":"Reuters","labels":["conferences"],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2622780660?lang=en_us&edition=fundamental","pubTime":"2026-03-28 06:37","pubTimestamp":1774651074,"startTime":"0","endTime":"0","summary":"Prothena will hold its annual general meeting on May 14, 2026 in Dublin, Ireland.Shareholders will vote on electing Shane M. Cooke and Dennis J. Selkoe as directors to serve until no later than the 2029 annual general meeting.The meeting will include a vote to ratify the appointment of KPMG as independent registered public accounting firm for 2026 and a vote to authorize the audit committee to approve the auditor’s remuneration.A non-binding advisory vote will be held on compensation for Prothena’s named executive officers.Disclaimer: This news brief was created by Public Technologies  using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Prothena Corporation plc published the original content used to generate this news brief on March 27, 2026, and is solely responsible for the information contained ther","market":"fut","thumbnail":null,"type":0,"news_type":0,"thumbnails":[],"rights":null,"property":[],"language":"en","translate_title":"","themeId":null,"theme_name":"","theme_type":"","isJumpTheme":false,"source_url":"https://api.refinitiv.com/data/news/v1/stories/urn:newsml:reuters.com:20260327:nNDL2DvybS:1","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"0","news_top_title":null,"news_tag":"conferences","news_rank":0,"length":0,"strategy_id":0,"source":null,"symbols":["PRTA","BK4139"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2621791129","title":"Prothena partners present prasinezumab and BMS-986446 clinical study updates at AD/PD 2026","url":"https://stock-news.laohu8.com/highlight/detail?id=2621791129","media":"Reuters","labels":["corporation"],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2621791129?lang=en_us&edition=fundamental","pubTime":"2026-03-22 04:05","pubTimestamp":1774123521,"startTime":"0","endTime":"0","summary":"Prothena reported that partner presentations at AD/PD 2026 included clinical updates on prasinezumab for Parkinson’s disease and BMS-986446 for Alzheimer’s disease.Roche presented PASADENA open-label extension analyses that estimated about two years of “time saved” versus a model-based comparator, based on outcomes five years after trial start.Roche also presented additional PADOVA open-label extension data indicating a sustained effect on slowing Parkinson’s progression, and said the evidence informed initiation of the Phase III PARAISO study.Poster data from PADOVA described exploratory MRI biomarker findings, including slowed neuromelanin signal loss and reduced iron accumulation.Bristol Myers Squibb presented a randomized, double-blind, placebo-controlled study in healthy participants reporting single-dose BMS-986446 was safe and well tolerated, with no anti-drug antibodies detected.","market":"us","thumbnail":null,"type":0,"news_type":0,"thumbnails":[],"rights":null,"property":[],"language":"en","translate_title":"","themeId":null,"theme_name":"","theme_type":"","isJumpTheme":false,"source_url":"https://api.refinitiv.com/data/news/v1/stories/urn:newsml:reuters.com:20260321:nNDLbdQRJs:1","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"0","news_top_title":null,"news_tag":"corporation","news_rank":0,"length":0,"strategy_id":0,"source":null,"symbols":["LU2242652126.USD","LU1670710661.SGD","LU1074936037.SGD","LU0306807586.USD","BK4007","LU1868836591.USD","LU0456855351.SGD","LU1670711123.USD","BK4588","LU0267386448.USD","BK4559","LU0985481810.HKD","LU1989771016.USD","LU1670711040.USD","LU1291159041.SGD","BK4532","LU0868494617.USD","LU1430594728.SGD","LU1093756325.SGD","BK4534","LU1670710588.SGD","LU1868837136.USD","LU2133065610.SGD","LU1883839398.USD","LU0321505868.SGD","BK4581","LU1093756168.USD","LU1868837300.USD","IE00BJJMRZ35.SGD","LU1718418525.SGD","LU0237698245.USD","LU0061475181.USD","LU0225284248.USD","LU1032466523.USD","IE00BJT1NW94.SGD","LU1868836914.USD","LU1571399168.USD","IE00BSNM7G36.USD","IE00BFXG1179.USD","LU1261432733.SGD","LU2360032135.SGD","IE0002141913.USD","LU2125154935.USD","LU0096364046.USD","IE00B2B36J28.USD","BK4139","PRTA","BMY","LU0225771236.USD","IE00BFTCPJ56.SGD"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2618674786","title":"Prothena Corporation plc publishes corporate overview presentation on protein dysregulation disease pipeline and USD 308.4 million cash position","url":"https://stock-news.laohu8.com/highlight/detail?id=2618674786","media":"Reuters","labels":["dataReport"],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2618674786?lang=en_us&edition=fundamental","pubTime":"2026-03-10 04:22","pubTimestamp":1773087725,"startTime":"0","endTime":"0","summary":"Prothena Corporation plc publishes corporate overview presentation on protein dysregulation disease pipeline and USD 308.4 million cash position. Disclaimer: This news brief was created by Public Technologies  using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Prothena Corporation plc published the original content used to generate this news brief on March 09, 2026, and is solely responsible for the information contained therein.","market":"nz","thumbnail":null,"type":0,"news_type":0,"thumbnails":[],"rights":null,"property":[],"language":"en","translate_title":"","themeId":null,"theme_name":"","theme_type":"","isJumpTheme":false,"source_url":"https://api.refinitiv.com/data/news/v1/stories/urn:newsml:reuters.com:20260309:nNDLbnHn72:1","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"1","news_top_title":null,"news_tag":"dataReport","news_rank":0,"length":0,"strategy_id":0,"source":null,"symbols":["BK4139","PRTA"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2618674291","title":"Prothena achieves $50M clinical milestone payment from Novo Nordisk","url":"https://stock-news.laohu8.com/highlight/detail?id=2618674291","media":"TIPRANKS","labels":["corporation"],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2618674291?lang=en_us&edition=fundamental","pubTime":"2026-03-10 04:11","pubTimestamp":1773087090,"startTime":"0","endTime":"0","summary":"The company states: “Prothena (PRTA) announced that the Company earned a $50 million milestone payment from Novo Nordisk (NVO) related to the achie...","market":"us","thumbnail":null,"type":0,"news_type":0,"thumbnails":[],"rights":{"source":"tipranks_highlight","url":"https://www.tipranks.com/news/the-fly/prothena-achieves-50m-clinical-milestone-payment-from-novo-nordisk-thefly-news?utm_source=itigerup.com&utm_medium=referral","rn_cache_url":null,"directOrigin":true},"property":[],"language":"en","translate_title":"","themeId":null,"theme_name":"","theme_type":"","isJumpTheme":false,"source_url":"https://www.tipranks.com/news/the-fly/prothena-achieves-50m-clinical-milestone-payment-from-novo-nordisk-thefly-news?utm_source=itigerup.com&utm_medium=referral","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"1","news_top_title":null,"news_tag":"corporation","news_rank":0,"length":0,"strategy_id":0,"source":"tipranks_highlight","symbols":["BK4588","LU1093756168.USD","PRTA","IE00BKVL7J92.USD","NVO","NVOX","LU1093756325.SGD","NVOH","BK4585","BK4532","BK4599","IE00BZ1G4Q59.USD","BK4007","BK4139","LU0154236417.USD"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2618746376","title":"Prothena earns USD 50 million milestone payment from Novo Nordisk","url":"https://stock-news.laohu8.com/highlight/detail?id=2618746376","media":"Reuters","labels":["corporation"],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2618746376?lang=en_us&edition=fundamental","pubTime":"2026-03-10 04:11","pubTimestamp":1773087083,"startTime":"0","endTime":"0","summary":"Disclaimer: This news brief was created by Public Technologies  using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Prothena Corporation plc published the original content used to generate this news brief on March 09, 2026, and is solely responsible for the information contained therein.","market":"fut","thumbnail":null,"type":0,"news_type":0,"thumbnails":[],"rights":null,"property":[],"language":"en","translate_title":"","themeId":null,"theme_name":"","theme_type":"","isJumpTheme":false,"source_url":"https://api.refinitiv.com/data/news/v1/stories/urn:newsml:reuters.com:20260309:nNDLcc89M7:1","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"1","news_top_title":null,"news_tag":"corporation","news_rank":0,"length":0,"strategy_id":0,"source":null,"symbols":["PRTA","BK4139"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2618671041","title":"Prothena Announces Achievement of $50 Million Clinical Milestone Payment From Novo Nordisk Related to Ongoing Phase 3 Clinical Trial for Coramitug (Formerly Prx004) in Attr Amyloidosis With Cardiomyopathy","url":"https://stock-news.laohu8.com/highlight/detail?id=2618671041","media":"THOMSON REUTERS","labels":[],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2618671041?lang=en_us&edition=fundamental","pubTime":"2026-03-10 04:05","pubTimestamp":1773086700,"startTime":"0","endTime":"0","summary":null,"market":"nz","thumbnail":null,"type":0,"news_type":0,"thumbnails":[],"rights":null,"property":[],"language":"en","translate_title":"","themeId":null,"theme_name":"","theme_type":"","isJumpTheme":false,"source_url":"https://api.refinitiv.com/data/news/v1/stories/urn:newsml:reuters.com:20260309:nTUA2K8NFV:1","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"0","news_top_title":null,"news_tag":"","news_rank":0,"length":0,"strategy_id":0,"source":"reuters_en_live","symbols":["BK4139","PRTA"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2618671004","title":"Prothena Corporation Plc - Novo Nordisk Phase 3 Coramitug Trial in Attr-Cm Expected to Complete in 2029","url":"https://stock-news.laohu8.com/highlight/detail?id=2618671004","media":"THOMSON REUTERS","labels":[],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2618671004?lang=en_us&edition=fundamental","pubTime":"2026-03-10 04:05","pubTimestamp":1773086700,"startTime":"0","endTime":"0","summary":null,"market":"fut","thumbnail":null,"type":0,"news_type":0,"thumbnails":[],"rights":null,"property":[],"language":"en","translate_title":"","themeId":null,"theme_name":"","theme_type":"","isJumpTheme":false,"source_url":"https://api.refinitiv.com/data/news/v1/stories/urn:newsml:reuters.com:20260309:nTUA2K8NFV:2","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"0","news_top_title":null,"news_tag":"","news_rank":0,"length":0,"strategy_id":0,"source":"reuters_en_live","symbols":["BK4139","PRTA"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2616853654","title":"Prothena (PRTA) Gets a Sell from Bank of America Securities","url":"https://stock-news.laohu8.com/highlight/detail?id=2616853654","media":"TIPRANKS","labels":[],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2616853654?lang=en_us&edition=fundamental","pubTime":"2026-03-04 17:55","pubTimestamp":1772618155,"startTime":"0","endTime":"0","summary":"In a report released yesterday, Tazeen Ahmad from Bank of America Securities reiterated a Sell rating on Prothena, with a price target of $8.00. 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Excluding any potential purchases un...","market":"us","thumbnail":null,"type":0,"news_type":0,"thumbnails":[],"rights":{"source":"tipranks_highlight","url":"https://www.tipranks.com/news/the-fly/prothena-expects-to-end-year-with-255m-in-cash-equivalents-thefly-news?utm_source=itigerup.com&utm_medium=referral","rn_cache_url":null,"directOrigin":true},"property":[],"language":"en","translate_title":"","themeId":null,"theme_name":"","theme_type":"","isJumpTheme":false,"source_url":"https://www.tipranks.com/news/the-fly/prothena-expects-to-end-year-with-255m-in-cash-equivalents-thefly-news?utm_source=itigerup.com&utm_medium=referral","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"1","news_top_title":null,"news_tag":"dataReport","news_rank":0,"length":0,"strategy_id":0,"source":"tipranks_highlight","symbols":["PRTA","BK4139"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2614862214","title":"Prothena authorizes up to $100.00 million share repurchase plan","url":"https://stock-news.laohu8.com/highlight/detail?id=2614862214","media":"Reuters","labels":["shareholding","buyback"],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2614862214?lang=en_us&edition=fundamental","pubTime":"2026-02-28 05:15","pubTimestamp":1772226926,"startTime":"0","endTime":"0","summary":"Prothena Corporation plc’s board authorized a share repurchase plan allowing the company to buy back up to $100 million of its outstanding ordinary shares. 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