prothena corp. plc - PRTA

PRTA

Close Chg Chg %
11.17 -0.01 -0.09%

Pre-Market

11.16

-0.01 (0.09%)

Volume: 1.16M

Last Updated:

Dec 4, 2025, 4:00 PM EDT

Company Overview: prothena corp. plc - PRTA

PRTA Key Data

Open

$11.04

Day Range

10.95 - 11.57

52 Week Range

4.32 - 17.66

Market Cap

$601.28M

Shares Outstanding

53.83M

Public Float

43.39M

Beta

-0.10

Rev. Per Employee

N/A

P/E Ratio

N/A

EPS

-$5.21

Yield

0.00%

Dividend

N/A

EX-DIVIDEND DATE

SHORT INTEREST

N/A

AVERAGE VOLUME

622.88K

 

PRTA Performance

1 Week
 
3.81%
 
1 Month
 
5.68%
 
3 Months
 
30.53%
 
1 Year
 
-20.57%
 
5 Years
 
-3.21%
 

PRTA Analyst Ratings

  • Sell
  • Under
  • Hold
  • Over
  • Buy
Number of Ratings 7
Full Ratings ➔

About prothena corp. plc - PRTA

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 At a Glance

Prothena Corp. Plc
77 Sir John Rogersons Quay
Dublin, Dublin 2
Phone 353-1-236-2500 Revenue 135.16M
Industry Biotechnology Net Income -122,310,000.00
Sector Health Technology 2024 Sales Growth 47.923%
Fiscal Year-end 12 / 2025 Employees 163
View SEC Filings

PRTA Valuation

P/E Current N/A
P/E Ratio (with extraordinary items) N/A
P/E Ratio (without extraordinary items) N/A
Price to Sales Ratio 5.51
Price to Book Ratio 1.531
Price to Cash Flow Ratio N/A
Enterprise Value to EBITDA -1.882
Enterprise Value to Sales 2.103
Total Debt to Enterprise Value 0.038

PRTA Efficiency

Revenue/Employee 829,184.049
Income Per Employee -750,368.098
Receivables Turnover N/A
Total Asset Turnover 0.217

PRTA Liquidity

Current Ratio 10.008
Quick Ratio 10.008
Cash Ratio 9.719

PRTA Profitability

Gross Margin 97.348
Operating Margin -114.357
Pretax Margin -95.393
Net Margin -90.495
Return on Assets -19.672
Return on Equity -23.335
Return on Total Capital -24.572
Return on Invested Capital -22.921

PRTA Capital Structure

Total Debt to Total Equity 2.227
Total Debt to Total Capital 2.178
Total Debt to Total Assets 1.982
Long-Term Debt to Equity 1.691
Long-Term Debt to Total Capital 1.654
  • Income Statement
  • Balance Sheet
  • Cash Flow Statement

Annual Financials for Prothena Corp. Plc - PRTA

Collapse All in section
All values USD millions. 2021 2022 2023 2024 5-year trend
Sales/Revenue
200.58M 53.91M 91.37M 135.16M
Sales Growth
+23,414.30% -73.13% +69.50% +47.92%
Cost of Goods Sold (COGS) incl D&A
- 6.74M 8.41M 3.59M
COGS excluding D&A
- - - -
-
Depreciation & Amortization Expense
6.80M 6.74M 8.41M 3.59M
Depreciation
6.80M 6.74M 8.41M 3.59M
Amortization of Intangibles
- - - -
-
COGS Growth
- - +24.79% -57.38%
-
Gross Income
- 47.16M 82.96M 131.57M
Gross Income Growth
- - +75.89% +58.60%
-
Gross Profit Margin
- +87.49% +90.79% +97.35%
2021 2022 2023 2024 5-year trend
SG&A Expense
121.80M 178.72M 273.99M 286.13M
Research & Development
82.28M 135.56M 220.57M 222.52M
Other SG&A
39.52M 43.16M 53.42M 63.61M
SGA Growth
+14.25% +46.73% +53.31% +4.43%
Other Operating Expense
- - - -
-
Unusual Expense
- - - -
-
EBIT after Unusual Expense
71.97M (131.56M) (191.04M) (154.56M)
Non Operating Income/Expense
(54.00K) 5.95M 30.56M 25.63M
Non-Operating Interest Income
42.00K 6.35M 31.01M 25.82M
Equity in Earnings of Affiliates
- - - -
-
Interest Expense
- - - -
-
Interest Expense Growth
- - - -
-
Gross Interest Expense
- - - -
-
Interest Capitalized
- - - -
-
Pretax Income
71.92M (125.61M) (160.48M) (128.93M)
Pretax Income Growth
+164.55% -274.64% -27.77% +19.66%
Pretax Margin
+35.86% -233.01% -175.64% -95.39%
Income Tax
4.95M (8.66M) (13.45M) (6.62M)
Income Tax - Current - Domestic
- - 2.24M 2.73M
-
Income Tax - Current - Foreign
- - 372.00K 2.48M
-
Income Tax - Deferred - Domestic
- - (15.69M) (9.35M)
-
Income Tax - Deferred - Foreign
- - 4.57M (11.13M)
-
Income Tax Credits
- - - -
-
Equity in Earnings of Affiliates
- - - -
-
Other After Tax Income (Expense)
- - - -
-
Consolidated Net Income
66.98M (116.95M) (147.03M) (122.31M)
Minority Interest Expense
- - - -
-
Net Income
66.98M (116.95M) (147.03M) (122.31M)
Net Income Growth
+160.26% -274.62% -25.72% +16.81%
Net Margin Growth
+33.39% -216.95% -160.91% -90.49%
Extraordinaries & Discontinued Operations
- - - -
-
Discontinued Operations
- - - -
-
Net Income After Extraordinaries
66.98M (116.95M) (147.03M) (122.31M)
Preferred Dividends
- - - -
-
Net Income Available to Common
66.98M (116.95M) (147.03M) (122.31M)
EPS (Basic)
1.5143 -2.4689 -2.7629 -2.2746
EPS (Basic) Growth
+154.38% -263.04% -11.91% +17.67%
Basic Shares Outstanding
44.23M 47.37M 53.22M 53.77M
EPS (Diluted)
1.382 -2.4689 -2.7629 -2.2746
EPS (Diluted) Growth
+149.63% -278.65% -11.91% +17.67%
Diluted Shares Outstanding
48.46M 47.37M 53.22M 53.77M
EBITDA
78.78M (124.82M) (182.62M) (150.98M)
EBITDA Growth
+174.49% -258.44% -46.31% +17.33%
EBITDA Margin
+39.28% -231.55% -199.87% -111.70%

Snapshot

Average Recommendation OVERWEIGHT Average Target Price 19.00
Number of Ratings 7 Current Quarters Estimate -0.559
FY Report Date 12 / 2025 Current Year's Estimate -4.694
Last Quarter’s Earnings -0.68 Median PE on CY Estimate N/A
Year Ago Earnings -2.27 Next Fiscal Year Estimate 0.596
Median PE on Next FY Estimate N/A

Earnings Per Share

This Quarter Next Quarter This Fiscal Next Fiscal
# of Estimates 7 3 7 7
Mean Estimate -0.56 -0.33 -4.69 0.60
High Estimates -0.38 -0.23 -4.50 4.00
Low Estimate -0.91 -0.41 -5.04 -1.62
Coefficient of Variance -34.07 -27.77 -4.14 304.13

Analysts Recommendations

Current 1 Month Ago 3 Months Ago
BUY 4 4 4
OVERWEIGHT 0 0 0
HOLD 2 2 2
UNDERWEIGHT 1 1 1
SELL 0 0 0
MEAN Overweight Overweight Overweight

Insider Actions for Prothena Corp. Plc - PRTA

Date Name Shares Transaction Value
Feb 17, 2025 Tran B. Nguyen Chief Strategy Officer and CFO 2,205 Other acquisition or disposition 0.00

Prothena Corp. Plc in the News