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LSE, 0Y3M: Prothena Corporation Plc

21 Aug 2026
LAST:

9.284

CHANGE:
 0.50		OPEN:
9.170		HIGH:
9.284		ASK:
0.000		VOLUME:
203
CHG(%):
5.64		PREV:
8.788		LOW:
9.170		BID:
0.000		 

CHART

RECENT END OF DAY PRICES

DateOpenHighLowCloseVolume
21 Aug 269.1709.2849.1709.284203
20 Aug 269.1239.1308.7508.788490
19 Aug 269.1759.2009.0009.060100
18 Aug 268.6909.0508.6028.602100
17 Aug 268.8208.8608.8208.834302
14 Aug 268.9808.9808.9108.970147
13 Aug 269.2919.2919.2009.200100
12 Aug 269.2239.3009.1829.1901.3K
11 Aug 269.1579.1578.8959.122315
10 Aug 268.7508.8808.5408.730759

PROFILE

Name:Prothena Corporation Plc
About:Prothena Corporation plc, a late-stage clinical biotechnology company, focuses on discovery and development of novel therapies to treat diseases caused by protein dysregulation in the United States. Its product pipeline include Prasinezumab, an investigational humanized monoclonal antibody which is in phase 2b clinical trial, as well as phase 1 and 2 clinical trials for the treatment of parkinson's disease and other synucleinopathies. The company also develops Coramitug, an investigational antibody, which is in phase 2 clinical trial for potential treatment of transthyretin amyloidosis; BMS-986446, an investigational antibody, which is in phase 2 clinical trial to treat Alzheimer's disease; PRX012, an investigational antibody, which is in phase 1 clinical trial to treat Alzheimer's disease; PRX123, a Dual Aß-Tau Vaccine, which is in preclinical trial for treating Alzheimer's disease; and PRX019, an investigational antibody, which is in phase 1 clinical trial for the potential treatment of neurodegenerative diseases. It has a license, development, and commercialization agreement with F. Hoffmann-La Roche Ltd. and Hoffmann-La Roche Inc. to develop and commercialize antibodies that target a-synuclein, including prasinezumab; and master collaboration agreement with Bristol Myers Squibb to develop and commercialize antibodies targeting tau, TDP-43. Prothena Corporation plc was incorporated in 2012 and is based in Dublin, Ireland.
Address:77 Sir John Rogerson?s Quay, Dublin, Ireland, D02 VK60
Website:https://www.prothena.com

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FUNDAMENTALS

Trailing P/E:0.07 
Price to Sales:39.51 
Price to Book:1.63 
Profit Margin:-0.81 
Operating Margin:-18.50 
Return on Assets:-0.11 
Return on Equity:-0.14 
EPS Ratio:1.34 
Revenue:54.53M 
EBITDA:8.14M 
Shares:39.86M 
Market Cap:370.09M 

TECHNICAL INDICATORS

MA5:8.914.2%
MA10:8.983.4%
MA20:8.716.6%
MA50:8.963.7%
MA100:9.502.3%
MA200:9.502.4%
STO9:97.71 
STO14:98.35 
RSI14:66.61 
MTM14:0.74
ROC14:0.09 
ATR:0.35 
Week High:9.280.0%
Week Low:8.607.9%
Month High:9.300.2%
Month Low:8.102.4%
Year High:11.6725.7%
Year Low:7.8917.7%
Volatility:29.80