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

Dow Jones

May 12

Prothena Corp. Plc $(PRTA)$ 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%

--Currently down three of the past four days

--Down 11.84% month-to-date

--Up 2.09% year-to-date

--Down 87.64% from its all-time closing high of $78.89 on Sept. 23, 2021

--Up 28.12% from 52 weeks ago (May 12, 2025), when it closed at $7.61

--Down 15.29% from its 52-week closing high of $11.51 on April 28, 2026

--Up 112.88% from its 52-week closing low of $4.58 on May 27, 2025

--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%

All data as of 2:38:06 PM ET

Source: Dow Jones Market Data, FactSet

(END) Dow Jones Newswires

May 11, 2026 14:43 ET (18:43 GMT)

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Plc <a href=\"https://laohu8.com/S/PRTA\">$(PRTA)$</a> is currently at $9.75, down $0.98 or 9.13% \n</p>\n<pre style=\"white-space: pre\">\n \n</pre>\n<p>\n       --Would be lowest close since March 31, 2026, when it closed at $9.72 \n</p>\n<p>\n       --On pace for largest percent decrease since May 27, 2025, when it fell 30.4% \n</p>\n<p>\n       --Currently down three of the past four days \n</p>\n<p>\n       --Down 11.84% month-to-date \n</p>\n<p>\n       --Up 2.09% year-to-date \n</p>\n<p>\n       --Down 87.64% from its all-time closing high of $78.89 on Sept. 23, 2021 \n</p>\n<p>\n       --Up 28.12% from 52 weeks ago (May 12, 2025), when it closed at $7.61 \n</p>\n<p>\n       --Down 15.29% from its 52-week closing high of $11.51 on April 28, 2026 \n</p>\n<p>\n       --Up 112.88% from its 52-week closing low of $4.58 on May 27, 2025 \n</p>\n<p>\n       --Traded as low as $9.65; lowest intraday level since April 2, 2026, when it hit $9.51 \n</p>\n<p>\n       --Down 10.07% at today's intraday low; largest intraday percent decrease since May 27, 2025, when it fell as much as 32.45% \n</p>\n<pre style=\"white-space: pre\">\n \n</pre>\n<p>\n     All data as of 2:38:06 PM ET \n</p>\n<pre style=\"white-space: pre\">\n \n</pre>\n<p>\n     Source: Dow Jones Market Data, FactSet \n</p>\n<pre style=\"white-space: pre\">\n \n</pre>\n<p>\n  (END) Dow Jones Newswires\n</p>\n<p>\n  May 11, 2026 14:43 ET (18:43 GMT)\n</p>\n<p>\n  Copyright (c) 2026 Dow Jones &amp; Company, Inc.\n</p>\n</font>","source":null,"html":"<!DOCTYPE html>\n<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n<meta name=\"viewport\" content=\"width=device-width,initial-scale=1.0,minimum-scale=1.0,maximum-scale=1.0,user-scalable=no\"/>\n<meta name=\"format-detection\" content=\"telephone=no,email=no,address=no\" />\n<title>Prothena Corp. Down Over 9%, on Pace for Largest Percent Decrease Since May 2025 -- Data Talk</title>\n<style type=\"text/css\">\na,abbr,acronym,address,applet,article,aside,audio,b,big,blockquote,body,canvas,caption,center,cite,code,dd,del,details,dfn,div,dl,dt,\nem,embed,fieldset,figcaption,figure,footer,form,h1,h2,h3,h4,h5,h6,header,hgroup,html,i,iframe,img,ins,kbd,label,legend,li,mark,menu,nav,\nobject,ol,output,p,pre,q,ruby,s,samp,section,small,span,strike,strong,sub,summary,sup,table,tbody,td,tfoot,th,thead,time,tr,tt,u,ul,var,video{ font:inherit;margin:0;padding:0;vertical-align:baseline;border:0 }\nbody{ font-size:16px; line-height:1.5; color:#999; background:transparent; }\n.wrapper{ overflow:hidden;word-break:break-all;padding:10px; }\nh1,h2{ font-weight:normal; line-height:1.35; margin-bottom:.6em; }\nh3,h4,h5,h6{ line-height:1.35; margin-bottom:1em; }\nh1{ font-size:24px; }\nh2{ font-size:20px; }\nh3{ font-size:18px; }\nh4{ font-size:16px; }\nh5{ font-size:14px; }\nh6{ font-size:12px; }\np,ul,ol,blockquote,dl,table{ margin:1.2em 0; }\nul,ol{ margin-left:2em; }\nul{ list-style:disc; }\nol{ list-style:decimal; }\nli,li p{ margin:10px 0;}\nimg{ max-width:100%;display:block;margin:0 auto 1em; }\nblockquote{ color:#B5B2B1; border-left:3px solid #aaa; padding:1em; }\nstrong,b{font-weight:bold;}\nem,i{font-style:italic;}\ntable{ width:100%;border-collapse:collapse;border-spacing:1px;margin:1em 0;font-size:.9em; }\nth,td{ padding:5px;text-align:left;border:1px solid #aaa; }\nth{ font-weight:bold;background:#5d5d5d; }\n.symbol-link{font-weight:bold;}\n/* header{ border-bottom:1px solid #494756; } */\n.title{ margin:0 0 8px;line-height:1.3;color:#ddd; }\n.meta {color:#5e5c6d;font-size:13px;margin:0 0 .5em; }\na{text-decoration:none; color:#2a4b87;}\n.meta .head { display: inline-block; overflow: hidden}\n.head .h-thumb { width: 30px; height: 30px; margin: 0; padding: 0; border-radius: 50%; float: left;}\n.head .h-content { margin: 0; padding: 0 0 0 9px; float: left;}\n.head .h-name {font-size: 13px; color: #eee; margin: 0;}\n.head .h-time {font-size: 11px; color: #7E829C; margin: 0;line-height: 11px;}\n.small {font-size: 12.5px; display: inline-block; transform: scale(0.9); -webkit-transform: scale(0.9); transform-origin: left; -webkit-transform-origin: left;}\n.smaller {font-size: 12.5px; display: inline-block; transform: scale(0.8); -webkit-transform: scale(0.8); transform-origin: left; -webkit-transform-origin: left;}\n.bt-text {font-size: 12px;margin: 1.5em 0 0 0}\n.bt-text p {margin: 0}\n</style>\n</head>\n<body>\n<div class=\"wrapper\">\n<header>\n<h2 class=\"title\">\nProthena Corp. Down Over 9%, on Pace for Largest Percent Decrease Since May 2025 -- Data Talk\n</h2>\n\n<h4 class=\"meta\">\n\n\n<div class=\"head\" \">\n\n\n<div class=\"h-thumb\" style=\"background-image:url(https://static.tigerbbs.com/150f88aa4d182df19190059f4a365e99);background-size:cover;\"></div>\n\n<div class=\"h-content\">\n<p class=\"h-name\">Dow Jones </p>\n<p class=\"h-time\">2026-05-12 02:43</p>\n</div>\n\n</div>\n\n\n</h4>\n\n</header>\n<article>\n<font class=\"NormalMinus1\" face=\"Arial\">\n<p>\n  Prothena Corp. Plc <a href=\"https://laohu8.com/S/PRTA\">$(PRTA)$</a> is currently at $9.75, down $0.98 or 9.13% \n</p>\n<pre style=\"white-space: pre\">\n \n</pre>\n<p>\n       --Would be lowest close since March 31, 2026, when it closed at $9.72 \n</p>\n<p>\n       --On pace for largest percent decrease since May 27, 2025, when it fell 30.4% \n</p>\n<p>\n       --Currently down three of the past four days \n</p>\n<p>\n       --Down 11.84% month-to-date \n</p>\n<p>\n       --Up 2.09% year-to-date \n</p>\n<p>\n       --Down 87.64% from its all-time closing high of $78.89 on Sept. 23, 2021 \n</p>\n<p>\n       --Up 28.12% from 52 weeks ago (May 12, 2025), when it closed at $7.61 \n</p>\n<p>\n       --Down 15.29% from its 52-week closing high of $11.51 on April 28, 2026 \n</p>\n<p>\n       --Up 112.88% from its 52-week closing low of $4.58 on May 27, 2025 \n</p>\n<p>\n       --Traded as low as $9.65; lowest intraday level since April 2, 2026, when it hit $9.51 \n</p>\n<p>\n       --Down 10.07% at today's intraday low; largest intraday percent decrease since May 27, 2025, when it fell as much as 32.45% \n</p>\n<pre style=\"white-space: pre\">\n \n</pre>\n<p>\n     All data as of 2:38:06 PM ET \n</p>\n<pre style=\"white-space: pre\">\n \n</pre>\n<p>\n     Source: Dow Jones Market Data, FactSet \n</p>\n<pre style=\"white-space: pre\">\n \n</pre>\n<p>\n  (END) Dow Jones Newswires\n</p>\n<p>\n  May 11, 2026 14:43 ET (18:43 GMT)\n</p>\n<p>\n  Copyright (c) 2026 Dow Jones &amp; Company, Inc.\n</p>\n</font>\n\n</article>\n</div>\n</body>\n</html>\n","isBrief":false,"type":0,"news_type":1,"symbol":"PRTA","symbol_name":"Prothena Corporation plc","start_time":0,"source_url":"https://dowjonesnews.com/newdjn/logon.aspx?AL=N","article_id":"2634319842","we_media_id":"106","thumbnails":[],"rights":null,"url":"https://stock-news.laohu8.com/highlight/detail?id=2634319842","pubTimestamp":1778524980,"columns":[],"sourceInfo":null,"weMediaInfo":{"media_name":"Dow Jones","introduction":"Dow Jones publishes the world’s most trusted business news and financial information in a variety of media.","home_visible":0,"id":"106","head_image":"https://static.tigerbbs.com/150f88aa4d182df19190059f4a365e99"},"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%","collect":0,"end_time":0,"defaultTopTitle":"","property":[],"viewcount":null,"language":"en","relate_stocks":{"PRTA":"Prothena Corporation plc","BK4139":"生物科技"},"translate_title":"Prothena Corp.股价下跌超过9%，创2025年5月以来最大跌幅——Data Talk","themeId":null,"isJumpTheme":false,"ttsUrl":null,"symbols_score_info":{"PRTA":1},"content_text":"Prothena Corp. Plc $(PRTA)$ is currently at $9.75, down $0.98 or 9.13% \n\n\n \n\n\n       --Would be lowest close since March 31, 2026, when it closed at $9.72 \n\n\n       --On pace for largest percent decrease since May 27, 2025, when it fell 30.4% \n\n\n       --Currently down three of the past four days \n\n\n       --Down 11.84% month-to-date \n\n\n       --Up 2.09% year-to-date \n\n\n       --Down 87.64% from its all-time closing high of $78.89 on Sept. 23, 2021 \n\n\n       --Up 28.12% from 52 weeks ago (May 12, 2025), when it closed at $7.61 \n\n\n       --Down 15.29% from its 52-week closing high of $11.51 on April 28, 2026 \n\n\n       --Up 112.88% from its 52-week closing low of $4.58 on May 27, 2025 \n\n\n       --Traded as low as $9.65; lowest intraday level since April 2, 2026, when it hit $9.51 \n\n\n       --Down 10.07% at today's intraday low; largest intraday percent decrease since May 27, 2025, when it fell as much as 32.45% \n\n\n \n\n\n     All data as of 2:38:06 PM ET \n\n\n \n\n\n     Source: Dow Jones Market Data, FactSet \n\n\n \n\n\n  (END) Dow Jones Newswires\n\n\n  May 11, 2026 14:43 ET (18:43 GMT)\n\n\n  Copyright (c) 2026 Dow Jones & Company, Inc.","kind":"highlight","is_publish_news":true,"is_publish_highlight":false,"is_publish_live":false,"is_publish_wemedia":null,"editions":null,"column":"","sentiment":"-1","news_tag":"","news_rank":0,"isVideo":false,"video":null,"symbols":[],"gpt_button":0,"need_auth":true,"need_login_tip":false,"code":"91000000","status":"200"}}}