Prothena Corporation plc



+30.5% last 12 months

Market Cap

$2.95 Billion

The market capitalization is the market value of the company. It is the sum of the value of all outstanding shares.

52 Week Range

$21.06 - $66.47

The lowest and highest price in the last 52 weeks.

Price-Earnings Ratio


The price-earnings ratio is the ratio between the price per share (stock price) and the earnings per share. It indicates the percentage of the price per share (stock price) that is generated in earnings in the last 12 months.

Dividends per Share

$0.00 (0.0%)

Dividends per share is the amount of dividends paid out to the shareholder of a single share in the last 12 months. The percentage indicates the ratio of the company's annual dividend compared to its current price per share (stock price).

Revenue & Earnings

Balance Sheet

Share Statistics

Compare to
Market Cap The market value of the company. It's calculated by multiplying the share price by the number of outstanding shares. $2.95 Billion
Enterprise Value A measure of a company's total value. This includes market cap, cash, and debt. $2.45 Billion
Dividend Yield Yearly payout to shareholders per share. The percentage indicates the payout in relation to the share price. $0.00 (0.0%)
1 Year Return Profit or loss of share price change plus dividend yield. +30.5%
52-Week High Highest share price in the last 52 weeks. $66.47
52-Week Low Lowest share price in the last 52 weeks. $21.06
Beta Beta indicates the volatility of a stock compared to the market. Higher beta means more volatile and thus potentially higher risk and return. 1.97
Outstanding Shares The number of shares the company has issued and are held by stockholders. 48.4 Million
Avg 30 Day Volume The number of shares traded in the last 30 days. 536 Thousand


Compare to
P/E Ratio Ratio between share price and earnings per share. A low ratio could indicate that the stock is undervalued or investors aren't expecting high growth. A high ratio could indicate that the stock is overvalued or investors are expecting high growth. -18.82
PEG The ratio between the P/E ratio and the growth rate of the company's earnings per share in the last twelve months. A lower PEG could mean that a stock is undervalued. 13.27
Earnings per Share Earnings divided by outstanding shares. Higher EPS indicates greater value. -$3.20
Price to Sales Ratio Market cap divided by the revenue in the most recent year. Infinity
Price to Book Ratio Price to Book Ratio is the Market cap divided by the Book value of the company 7.4
Enterprise Value to Revenue Enterprise value divided by revenue 475.36
Enterprise Value to EBIT Enterprise Value divided by EBIT -14.89
Total Debt to Enterprise Value Total debt divided by enterprise value 0.0
Debt to Equity A higher ratio indicates a higher risk. However, the ratio is difficult to compare between industries where common amounts of debt vary. 0.0


Compare to
Revenue Revenue is the sum of all cash flow into the company. $5.15 Million
Gross Profit Gross profit is the profit after subtracting the costs of making and selling its products or the costs of providing its services. It indicates the efficiency of using their resources to produce goods or services. $5.15 Million
EBIT Earnings before tax and interest payments. -$165 Million
Net Income Net Income is the profit after all expenses have been deducted from the total revenue. -$156 Million
Profit Margin Net income divided by revenue of the last 4 quarters. It indicates the company's profitability. -3036.03%
Quarterly Earnings Growth (YoY) The rate at which the company's net income has increased to the same quarter one year ago. -141.9%
Return on Equity Equity divided by market cap. -38.67%
Return on Assets Indicates a company's profitability in relation to its total assets. -28.22%
Return on Invested Capital Return on invested capital (ROIC) is net income after dividends divided by the sum of debt and equity. It shows how effective a company is at turning capital invested by shareholders and other debtholders into profits. -32.66%

Insider trades

300,000.0 shares bought (1 transactions)

2,375.0 shares sold (1 transactions)

No purchases

1,065,367.0 shares sold (2 transactions)

No purchases

No sells

No purchases

No sells

Q1 2022 Q2 2022 Q3 2022 Q4 2022

About Prothena Corporation plc

CEO: Gene Kinney

Employees: 7

Industry: Pharmaceutical Preparation Manufacturing

Prothena Corporation plc is a late-stage clinical company with expertise in protein dysregulation and a diverse pipeline of novel investigational therapeutics with the potential to change the course of devastating neurodegenerative and rare peripheral amyloid diseases. Fueled by its deep scientific expertise built over decades of research, Prothena is advancing a pipeline of therapeutic candidates for a number of indications and novel targets for which its ability to integrate scientific insights around neurological dysfunction and the biology of misfolded proteins can be leveraged. Prothena’s partnered programs include prasinezumab (PRX002/RG7935), in collaboration with Roche for the potential treatment of Parkinson’s disease and other related synucleinopathies, and programs that target tau (PRX005), TDP-43 and an undisclosed target in collaboration with Bristol-Myers Squibb for the potential treatment of Alzheimer’s disease, amyotrophic lateral sclerosis (ALS), frontotemporal dementia (FTD) or other neurodegenerative diseases. Prothena’s wholly-owned programs include PRX004 for the potential treatment of ATTR amyloidosis, and a portfolio of programs for the potential treatment of Alzheimer’s disease including PRX012 that targets Aß (Amyloid beta).

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