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Prothena Corporation plc (PRTA)

NASDAQ

$8.93

$-0.01

(-0.11%)

Prothena Corporation plc (PRTA) Live Price Chart

Page last updated: 2026-02-11 21:33:00

Key Market Data

Market Cap	$480.70M
Open	$9.01
High	$79.75
Low	$4.32
Previous Close	$8.96
Price Change	$-0.01
Percentage Change	-0.11%
Volume	271K

Prothena Corporation plc (PRTA) Stock Price Today

Prothena Corporation plc (PRTA) is currently trading at $8.93 as of 2026-02-11 21:33:00, reflecting a -0.11% move ($-0.01) from the previous close.

In the short term, the stock has returned -55.68% over the past four weeks. Over the last 12 months, Prothena Corporation plc has recorded a -35.24% price change, indicating a weak performance relative to the broader market.

Prothena Corporation plc (PRTA) 7-Day Stock Price Changes

Over the past seven days, Prothena Corporation plc has traded within a short-term range shaped by market sentiment in the PHARMACEUTICAL PREPARATIONS sector. During this period, the stock moved from its previous closing price of $8.86 to the latest recorded price of $8.93, reflecting an intraday change of -0.11%. Daily movements highlight shifts in trading volume (270,865), investor positioning, and reactions to macroeconomic updates.

From a momentum standpoint, PRTA has delivered a -55.68% return over the past month and a -35.24% change in the last 12 months, indicating a weak trend relative to its broader sector peers.

How to Buy Prothena Corporation plc (PRTA)

You can buy and trade PRTA on MEXC in three simple steps:

Step 1: Create and Verify Your MEXC Account

Sign up on MEXC and complete the required identity verification (KYC). This ensures full access to trading features and secure funding options.

Step 2: Deposit Funds Into Your Account

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Step 3: Search for PRTA and Execute Your Trade

Open the trading page, enter PRTA in the search bar, select the amount of PRTA you would like to purchase. Place a market order for instant execution or a limit order to buy at your target price.

What is Prothena Corporation plc (PRTA)?

Prothena Corp PLC is a clinical biotechnology company that focuses on protein dysregulation and a pipeline of investigational therapeutics with the potential to change the course of devastating neurodegenerative and rare and peripheral amyloid diseases. The company's clinical pipeline of antibody-based product candidates targets a range of indications, including Amyloid Light-chain (AL) amyloidosis (NEOD001), Parkinson's disease and other related synucleinopathies (PRX002), and inflammatory diseases, including ATTR amyloidosis [Coramitug (PRX004)], Alzheimer's disease (PRX123), Neurodegeneration (PRXPRX019), and Others.

Prothena Corporation plc Information

Industry	PHARMACEUTICAL PREPARATIONS
Employees	163
Sector	PHARMACEUTICAL PREPARATIONS
Company Website	https://www.prothena.com

Frequently Asked Questions (FAQ)

1.What is the current share price of Prothena Corporation plc?

The latest trading price for Prothena Corporation plc (Common Stock) is $ 8.93, compared with a previous closing price of $ 8.96. That means the stock has moved -0.11% so far today. Intraday price updates and recent trading activity for PRTA can be tracked on the live chart and quote section on this page.

2.Is Prothena Corporation plc stock going up or down?

Looking at recent performances, PRTA has returned -55.68% over the past month, +4.69% over the last six months and -35.24% over the past year. These figures capture share-price changes only, not the impact of dividends. Together they describe weak price momentum for Prothena Corporation plc stock, but keep in mind that past returns do not guarantee future results.

3.Where does PRTA currently sit relative to its 52-week high and low?

In the most recent 52-week period, Prothena Corporation plc has traded between a low of $ 4.32 and a high of $ 16.67. This 52-week range helps show where today's share price sits relative to its recent highs and lows, and is often used by investors to judge stock volatility, potential support and resistance levels, and whether PRTA is currently nearer the top or the bottom of its one-year trading band.

4.How is Prothena Corporation plc classified by sector and industry?

Prothena Corporation plc is classified in the PHARMACEUTICAL PREPARATIONS sector. In practice, this means Prothena Corporation plc is grouped with other companies that serve similar end-markets and operate under comparable competitive and regulatory conditions. For investors, knowing PRTA’s sector helps with portfolio diversification, peer comparisons, and understanding how broader trends affecting the PHARMACEUTICAL PREPARATIONS sector could influence Prothena Corporation plc’s performance.

5.Where is Prothena Corporation plc listed and how large is it by market value?

Prothena Corporation plc is listed on the NASDAQ stock exchange in United States. Based on a market capitalisation of $ 480.70M, the company is classified as a Small-cap stock. Market cap gives a quick sense of Prothena Corporation plc's size and importance in the equity market and is often used by investors and index providers when constructing portfolios or benchmarks.

6.What does PRTA's EPS tell investors about its profitability?

Trailing-twelve-month EPS of $ -5.21 summarises how much profit Prothena Corporation plc has generated per share over the last year. Rising EPS over time can signal improving profitability or effective share repurchases, while flat or declining EPS may point to slower growth or margin pressure. EPS is a key input into valuation metrics such as P/E and is often monitored closely around earnings announcements.

7.How can I track Prothena Corporation plc's financial performance over time?

To follow Prothena Corporation plc's financial performance, investors typically review its quarterly and annual reports, which include detailed income statements, balance sheets and cash-flow statements. Combining these filings with key market data shown on this page—such as share price trends, P/E and dividend yield—provides a more complete view of how PRTA is performing and how the market is responding.

8.When is Prothena Corporation plc expected to report earnings?

Prothena Corporation plc's next scheduled earnings release is currently expected on -- (the date may be updated by the company). Earnings announcements often act as important catalysts for PRTA, as they provide updated information on revenue, profitability and management's outlook.

9.What usually comes out in Prothena Corporation plc's earnings reports?

Prothena Corporation plc's earnings reports typically include headline figures such as revenue, net income and EPS, along with commentary on segment performance, margins, cash flow and guidance for future periods. Investors compare these results with market expectations and prior periods to assess whether PRTA is meeting, beating or missing expectations.

10.How can I stay informed about Prothena Corporation plc's results and guidance?

You can stay up to date on Prothena Corporation plc by reviewing its quarterly earnings releases, listening to or reading transcripts of earnings calls, and following company news and filings. Pairing this fundamental information with the price and return data for PRTA on this page helps you see how new information is being reflected in the stock.

11.Does Prothena Corporation plc pay a regular cash dividend to its shareholders?

Prothena Corporation plc Non-paying. Based on the latest information, the stock has an indicated annual cash dividend of -- per share and a current dividend yield of 0 at the recent share price. Dividends are typically paid --, although the board can change the dividend policy at any time. Income-focused investors often monitor PRTA's dividend level, payment frequency and any announcements about future dividends when assessing the stock's appeal as a dividend-paying investment.

12.What are the current dividend yield and dividend payout ratio for PRTA?

Based on the latest earnings data, PRTA has a dividend yield of 0 and a dividend payout ratio of 0. The dividend yield shows how much cash return an investor receives from dividends each year relative to the current share price, helping assess whether Prothena Corporation plc is an attractive income stock. The dividend payout ratio measures what percentage of earnings Prothena Corporation plc distributes to shareholders as dividends versus how much it retains to reinvest in the business, which is an important indicator of dividend sustainability and room for future dividend growth.

13.What kind of business is Prothena Corporation plc?

Prothena Corporation plc is a publicly traded company in the PHARMACEUTICAL PREPARATIONS industry within the PHARMACEUTICAL PREPARATIONS sector. It generates revenue from products and services related to this core business area, and investors can find a detailed description of its operations, strategy and geographic exposure in the company's annual report and other regulatory filings.

14.How is PRTA valued in terms of P/E ratio and EPS?

Prothena Corporation plc currently trades at a price-to-earnings (P/E) ratio of --, based on trailing-twelve-month earnings per share (EPS) of $ -5.21. P/E is calculated by dividing the share price by EPS and shows how much investors are paying today for each unit of Prothena Corporation plc's earnings. Comparing PRTA's P/E and EPS to those of other PHARMACEUTICAL PREPARATIONS companies can help investors judge whether its valuation looks rich or attractive.

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Disclaimer

The stock price information displayed on this page is provided for reference purposes only and may be delayed or differ from real-time market data. Prices, charts, and related metrics do not constitute investment advice and should not be relied upon for trading or investment decisions. MEXC is not responsible for any losses incurred based on the stock price information provided on this page. Please refer to official market sources or consult licensed financial professionals before making any investment decisions.

PRTA-to-USD Calculator

Amount

PRTA

USD

1 PRTA = 8.93 USD