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PRTA
#2559
Prothena Corporation plc Ordinary Shares
8.6
7
0.00%
Sector:
Base:
Profit Currency:
Daily Range
Year Range
Daily Change
0.00%
Monthly Change
-10.53%
6 month change
+5.47%
Year Change
-44.78%
Previous Close
8.6
7
Open
8.6
7
Bid
Ask
Low
8.6
7
High
8.6
7
Volume
48
Markets
US Stock Market
Healthcare
PRTA
Open full chart
Financials
Overview
Statement
Statistics
Dividends
Quarterly
Annual
Value
Q3, 24
Q4, 24
Q1, 25
Q2, 25
Q3, 25
TTM
Key stats
Total common shares outstanding
53.81 M
53.83 M
53.83 M
53.83 M
53.83 M
—
Valuation ratios
Enterprise value
380.96 M
274.12 M
248.17 M
-44.69 M
194.54 M
672.14 M
Price to earnings ratio
-6.97
-6.1
-6.16
-1.09
-1.89
-15.23
Price to sales ratio
5.67
4.63
4.22
10.67
18.32
37.84
Price to cash flow ratio
5.83
4.96
5.09
1.7
2.79
14.54
Price to book ratio
0.41
1.53
0.33
0.18
0.34
2.38
Enterprise value to EBITDA ratio
—
—
—
—
—
—
Profitability ratios
Return on assets %
-0.13
-0.11
-0.12
-0.32
-0.1
-0.65
Return on equity %
-0.14
-0.12
-0.14
-0.39
-0.12
-0.77
Return on invested capital %
-232.27
-310.6
-299.99
-205.22
-292.29
-1 108.11
Gross margin %
100
100
100
100
100
400
Operating margin %
-651.38
-864.14
-913.89
-1 030.14
-697.88
-3 506.06
EBITDA margin %
—
—
—
—
—
—
Net margin %
-969.42
-771.72
-838.84
-1 531.13
-633.73
-3 775.42
Liquidity ratios
Quick ratio
—
—
—
—
—
—
Current ratio
11.52
10.01
9
5.68
6.61
31.3
Inventory turnover
—
—
—
—
—
—
Asset turnover
0.01
0.01
0.01
0.02
0.02
0.06
Solvency ratios
Debt to assets ratio
—
—
—
—
—
—
Debt to equity ratio
—
—
—
—
—
—
Long term debt to total assets ratio
—
—
—
—
—
—
Long term debt to total equity ratio
—
—
—
—
—
—
Per share metrics
Operating cash flow per share
-0.84
-0.89
-0.99
-0.86
-0.75
-3.49
EBIT per share
—
—
—
—
—
—
EBITDA per share
—
—
—
—
—
—
Total debt per share
—
—
—
—
—
—
Cash per share
9.66
8.77
7.76
6.9
6.15
29.58
Net current asset value per share
9.95
9.03
8.1
7.16
6.32
30.61
Tangible book value per share
9.94
9.06
8.13
6.03
5.48
28.69
Working capital per share
9.09
8.13
7.2
5.9
5.36
26.59
Book value per share
9.94
9.06
8.13
6.03
5.48
28.69
News
Prothena stock jumps on $100M share buyback authorization
Prothena authorizes $100 million share buyback program
Prothena Q4 Earnings Meet Estimates, Pipeline Progress in Focus
Prothena Corporation plc (PRTA) Q4 2025 Earnings Call Transcript
Prothena (PRTA) Reports Q4 Loss, Lags Revenue Estimates
Walmart, Southern Co, Newmont Mining and more set to report earnings Thursday
Prothena Stock Tumbles 36.8% Year Over Year: What Lies Ahead?
FTRE vs. PRTA: Which Stock Is the Better Value Option?
All You Need to Know About Prothena (PRTA) Rating Upgrade to Buy
Fortrea Holdings Inc. (FTRE) Moves 5.5% Higher: Will This Strength Last?
Paula Cobb steps down from Prothena’s board to join Manifold Bio
Prothena stock price target raised to $19 from $11 at Citizens