HALO logo
halo search icon
Prothena Corp. Plc

US$9.35

Price Change Indicator
0.28 (3.09%)
Prothena Corp. Plc
PRTA · NAS

Prothena Corp. Plc

Start Trading PRTA for Free

US$9.35

Price Arrow0.28 (3.09%)
20/05/2026 04:00:00 PM
All-CompaniesAll-ConsensusHALO AllHALO Consensus Value
Consensus Score
Lock Icon/10
Recommend
Lock
Target Price
Lock
Deviation
Lock
Unlock Full Consensus Insights

Prothena Corp. Plc Overview

PRTA Health Scores

Short Term

Mean Reversion

Neutral

Trend

Neutral

Event

Neutral

HALO Model

Mqv

Very Weak

Garp

Very Weak

Mqv Small

Neutral

Valuation

Value

Lock Icon

Consensus

Lock Icon

Momentum

Price

Weak

Earnings

Weak

Growth

Earnings

Neutral

Dividends

Very Weak

Quality

Capital Efficiency

Very Weak

Balance Sheet

Very Weak

About PRTA

icon
icon

Telephone

353.1.236.2500

icon

Address

Block C, Grand Canal Docklands, 77 Sir John Rogersons Quay, Dublin 2

Description

Prothena Corp. Plc is a clinical-stage neuroscience company, which engages in the discovery and development of novel therapies to change the course of devastating diseases. The firm’s clinical pipeline includes both wholly owned and partnered programs being developed for the potential treatment of diseases including AL amyloidosis, ATTR amyloidosis, Alzheimer’s disease, Parkinson’s disease and other neurodegenerative diseases. The company was founded in December 1969 and is headquartered in Dublin, Ireland.

PRTA Price Chart

Key Stats

Market Cap

US$474.84M

PE

0.00

EV/EBITDA

N/A

Dividends Overview

DIV Yield

0%

Franking

0%

Ex Dividend Date (est.)

N/A

Market Data

52 weeks range

Low 4.32 - 11.8

Trade Value (12mth)

US$1,691,446.00

1 week

-7.07%

1 month

-15%

YTD

-1.41%

1 year

32.99%

All time high

79.75

Key Fundamentals

EPS 3 yr Growth

83.70%

EBITDA Margin

NaN%

Operating Cashflow

-$164m

Free Cash Flow Return

-41.90%

ROIC

-62.50%

Interest Coverage

0.00

Quick Ratio

7.70

Other Data

Shares Outstanding (Fully Diluted)

54m

HALO Sector

Healthcare

Next Company Report Date

25-Feb-27

Next Ex Dividend Date

N/A

Next Dividend Pay Date

N/A

Reporting Currency

USD

Short Sell (% of issue)

0.00

PRTA Announcements

Latest Announcements

DateAnnouncements
16 May 26
16 May 26
08 May 26
08 May 26
08 May 26

PRTA Fundamentals

Per Share Records

Historical data

Forecast data

USD2021202220232024202320242025202620272028
Per Share, Growth & Valuations
EPS (Basic)
 $locklocklocklock-2.76-2.27-4.53locklocklock
EPS (Fully Diluted)
 $locklocklocklock-2.76-2.27-4.53locklocklock
Growth
 %locklocklocklock-11.917.7-99.4locklocklock
PE
 XlocklocklocklockN/AN/AN/Alocklocklock
EV/EBITDA
 XlocklocklocklockN/AN/AN/Alocklocklock

Dividends

Key Stats

Ex Dividend Date (est.)

N/A

DIV Yield

0%

Franking Level

0%

DPSg

N/A

Quality Yield

lock

Falling Divs over next 2

lock

Want to learn more?Frequently asked questions.
What is the current share price of Prothena Corp. Plc (PRTA:NAS)?
Halo FAQ
The current share price of Prothena Corp. Plc (PRTA:NAS) is USD$9.35.
What is the 52-week high share price for Prothena Corp. Plc (PRTA:NAS)?
Halo FAQ
The 52-week high share price for Prothena Corp. Plc (PRTA:NAS) is USD$11.80.
What is the 52-week low share price for Prothena Corp. Plc (PRTA:NAS)?
Halo FAQ
The 52-week low share price for Prothena Corp. Plc (PRTA:NAS) is USD$4.32.
What is the dividend yield for Prothena Corp. Plc (PRTA:NAS)?
Halo FAQ
Prothena Corp. Plc (PRTA:NAS) does not pay a dividend.
What was Prothena Corp. Plc (PRTA:NAS) last dividend payment?
Halo FAQ
Prothena Corp. Plc (PRTA:NAS) does not pay a dividend.
What is the franking level for Prothena Corp. Plc (PRTA:NAS)?
Halo FAQ
Prothena Corp. Plc (PRTA:NAS) has a franking level of 0.00%.
In which sector is Prothena Corp. Plc (PRTA:NAS) classified?
Halo FAQ
Prothena Corp. Plc (PRTA:NAS) is classified in the Healthcare.

See beyond the curve.

One solution for research, investing and portfolio management.
Start FREE Trial