Prothena Corporation plc (PRTA)
NASDAQ: PRTA · Real-Time Price · USD
8.27
+0.07 (0.85%)
At close: Sep 2, 2025, 4:00 PM
8.27
0.00 (0.00%)
After-hours: Sep 2, 2025, 4:01 PM EDT

Prothena Corporation Statistics

Total Valuation

PRTA has a market cap or net worth of $446.79 million. The enterprise value is $88.90 million.

Market Cap446.79M
Enterprise Value 88.90M

Important Dates

The last earnings date was Monday, August 4, 2025, after market close.

Earnings Date Aug 4, 2025
Ex-Dividend Date n/a

Share Statistics

PRTA has 53.83 million shares outstanding. The number of shares has increased by 0.25% in one year.

Current Share Class 53.83M
Shares Outstanding 53.83M
Shares Change (YoY) +0.25%
Shares Change (QoQ) n/a
Owned by Insiders (%) 19.25%
Owned by Institutions (%) 72.84%
Float 40.09M

Valuation Ratios

PE Ratio n/a
Forward PE n/a
PS Ratio 42.67
Forward PS 11.21
PB Ratio 1.36
P/TBV Ratio 1.39
P/FCF Ratio n/a
P/OCF Ratio n/a
PEG Ratio n/a
Financial Ratio History

Enterprise Valuation

EV / Earnings n/a
EV / Sales 8.60
EV / EBITDA n/a
EV / EBIT n/a
EV / FCF n/a

Financial Position

The company has a current ratio of 5.68, with a Debt / Equity ratio of 0.03.

Current Ratio 5.68
Quick Ratio 5.48
Debt / Equity 0.03
Debt / EBITDA n/a
Debt / FCF n/a
Interest Coverage n/a

Financial Efficiency

Return on equity (ROE) is -66.85% and return on invested capital (ROIC) is -33.53%.

Return on Equity (ROE) -66.85%
Return on Assets (ROA) -29.79%
Return on Invested Capital (ROIC) -33.53%
Return on Capital Employed (ROCE) -75.17%
Revenue Per Employee $63,442
Profits Per Employee -$1.86M
Employee Count163
Asset Turnover 0.02
Inventory Turnover n/a

Taxes

In the past 12 months, PRTA has paid $41.24 million in taxes.

Income Tax 41.24M
Effective Tax Rate n/a

Stock Price Statistics

The stock price has decreased by -62.86% in the last 52 weeks. The beta is -0.04, so PRTA's price volatility has been lower than the market average.

Beta (5Y) -0.04
52-Week Price Change -62.86%
50-Day Moving Average 7.13
200-Day Moving Average 10.67
Relative Strength Index (RSI) 60.06
Average Volume (20 Days) 1,172,981

Short Selling Information

The latest short interest is 4.18 million, so 7.77% of the outstanding shares have been sold short.

Short Interest 4.18M
Short Previous Month 4.37M
Short % of Shares Out 7.77%
Short % of Float 10.44%
Short Ratio (days to cover) 4.11

Income Statement

In the last 12 months, PRTA had revenue of $10.34 million and -$302.92 million in losses. Loss per share was -$5.63.

Revenue10.34M
Gross Profit -181.88M
Operating Income -249.00M
Pretax Income -61.40M
Net Income -302.92M
EBITDA -248.10M
EBIT -249.00M
Loss Per Share -$5.63
Full Income Statement

Balance Sheet

The company has $371.44 million in cash and $9.78 million in debt, giving a net cash position of $361.65 million or $6.72 per share.

Cash & Cash Equivalents 371.44M
Total Debt 9.78M
Net Cash 361.65M
Net Cash Per Share $6.72
Equity (Book Value) 324.33M
Book Value Per Share 6.03
Working Capital 317.67M
Full Balance Sheet

Cash Flow

In the last 12 months, operating cash flow was -$192.66 million and capital expenditures -$180,000, giving a free cash flow of -$192.84 million.

Operating Cash Flow -192.66M
Capital Expenditures -180,000
Free Cash Flow -192.84M
FCF Per Share -$3.58
Full Cash Flow Statement

Margins

Gross Margin n/a
Operating Margin -2,407.87%
Pretax Margin -2,530.46%
Profit Margin n/a
EBITDA Margin n/a
EBIT Margin n/a
FCF Margin n/a

Dividends & Yields

PRTA does not appear to pay any dividends at this time.

Dividend Per Share n/a
Dividend Yield n/a
Dividend Growth (YoY) n/a
Years of Dividend Growth n/a
Payout Ratio n/a
Buyback Yield -0.25%
Shareholder Yield -0.25%
Earnings Yield -67.23%
FCF Yield -42.80%
Dividend Details

Analyst Forecast

The average price target for PRTA is $12.29, which is 48.07% higher than the current price. The consensus rating is "Buy".

Price Target $12.29
Price Target Difference 48.07%
Analyst Consensus Buy
Analyst Count 10
Revenue Growth Forecast (5Y) -0.53%
EPS Growth Forecast (5Y) -12.82%
Stock Forecasts

Fair Value

There are several formulas that can be used to estimate the intrinsic value of a stock.

Lynch Fair Value n/a
Lynch Upside n/a
Graham Number n/a
Graham Upside n/a

Stock Splits

This stock does not have any record of stock splits.

Last Split Date n/a
Split Type n/a
Split Ratio n/a

Scores

PRTA has an Altman Z-Score of 0.79 and a Piotroski F-Score of 1. A Z-score under 3 suggests an increased risk of bankruptcy.

Altman Z-Score 0.79
Piotroski F-Score 1