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Prothena Corp PLC

9.83

+0.42004.46%

Volume:510.85K

Turnover:5.01M

Market Cap:514.63M

PE:-3.49

High:10.00

Open:9.36

Low:9.36

Close:9.41

52wk High:11.80

52wk Low:4.32

Shares:52.35M

Float Shares:38.17M

Volume Ratio:0.85

T/O Rate:1.34%

Dividend:- -

Dividend Rate:- -

EPS(TTM):-2.8131

EPS(LYR):-4.5346

ROE:-40.30%

ROA:-13.78%

PB:1.65

PE(LYR):-2.17

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News

Prothena shareholders re-elect directors at annual meeting

Prothena files Form 3 initial beneficial ownership statement for William P. Scully

Prothena Corp. Down Over 9%, on Pace for Largest Percent Decrease Since May 2025 -- Data Talk

Analysts Offer Insights on Healthcare Companies: Aardvark Therapeutics, Inc. (AARD), Prothena (PRTA) and Eli Lilly & Co (LLY)

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Cooke, Dennis J. Selkoe to board terms running to no later than 2029.KPMG LLP appointment was ratified as independent registered public accounting firm for fiscal year ending Dec. 31, 2026; board, acting through Audit Committee, was authorized to approve auditor remuneration.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 via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission , on May 15, 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:20260515:nNDLbyV1ml: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":null,"symbols":["PRTA","BK4139"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2635724987","title":"Prothena files Form 3 initial beneficial ownership statement for William P. Scully","url":"https://stock-news.laohu8.com/highlight/detail?id=2635724987","media":"Reuters","labels":[],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2635724987?lang=en_us&edition=fundamental","pubTime":"2026-05-15 06:23","pubTimestamp":1778797399,"startTime":"0","endTime":"0","summary":"Prothena Form 3 filed May 14, 2026 shows William P. Scully reporting beneficial ownership tied to 10% owner status, with event date May 7, 2026.Indirect holdings total 132,000 ordinary shares, including 80,000 held by Manatee Equity Fund LLC and 52,000 held by spouse.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 via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission , on May 14, 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:20260514:nNDLV9TPd: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":null,"symbols":["BK4139","PRTA"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2634319842","title":"Prothena Corp. Down Over 9%, on Pace for Largest Percent Decrease Since May 2025 -- Data Talk","url":"https://stock-news.laohu8.com/highlight/detail?id=2634319842","media":"Dow Jones","labels":[],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2634319842?lang=en_us&edition=fundamental","pubTime":"2026-05-12 02:43","pubTimestamp":1778524980,"startTime":"0","endTime":"0","summary":"Prothena Corp. Plc  is currently at $9.75, down $0.98 or 9.13%. --Would be lowest close since March 31, 2026, when it closed at $9.72. --On pace for largest percent decrease since May 27, 2025, when it fell 30.4%. --Down 87.64% from its all-time closing high of $78.89 on Sept. 23, 2021. --Up 28.12% from 52 weeks ago , when it closed at $7.61. --Down 15.29% from its 52-week closing high of $11.51 on April 28, 2026. --Traded as low as $9.65; lowest intraday level since April 2, 2026, when it hit $9.51. --Down 10.07% at today's intraday low; largest intraday percent decrease since May 27, 2025, when it fell as much as 32.45%","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://dowjonesnews.com/newdjn/logon.aspx?AL=N","is_publish_highlight":false,"source_rank":0,"column":"","sentiment":"-1","news_top_title":null,"news_tag":"","news_rank":0,"length":0,"strategy_id":0,"source":null,"symbols":["PRTA","BK4139"],"isVideo":false,"video":null,"gpt_icon":0},{"id":"2634440999","title":"Analysts Offer Insights on Healthcare Companies: Aardvark Therapeutics, Inc. (AARD), Prothena (PRTA) and Eli Lilly & Co (LLY)","url":"https://stock-news.laohu8.com/highlight/detail?id=2634440999","media":"TIPRANKS","labels":[],"top":-1,"itemType":null,"share":"https://ttm.financial/m/news/2634440999?lang=en_us&edition=fundamental","pubTime":"2026-05-10 21:30","pubTimestamp":1778419844,"startTime":"0","endTime":"0","summary":"Companies in the Healthcare sector have received a lot of coverage today as analysts weigh in on Aardvark Therapeutics, Inc. 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