Stock Evaluator: Prothena Corporation plc (PRTA)

Prothena Corporation plc PRTA

$8.12 -0.29 -3.45%
July 31, 2026 4:00:00 PM EST November 10, 2021 Volume: 545,490
After Hours: $120.37   0.15  |  0.12% November 10, 2021 7:59 PM EST Volume: 72,713
USD NASD | DELAYED PRICE
SECTOR INDUSTRY
Health Care Biotechnology

A+ Stock Grade Summary:

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COMPANY SUMMARY
Prothena Corporation plc, a late-stage clinical biotechnology company, focuses on discovery and development of novel therapies to treat diseases caused by protein dysregulation. Its product pipeline includes Prasinezumab, an investigational humanized monoclonal antibody which is in Phase 3 clinical trial for the treatment of parkinson’s disease and other synucleinopathies. The company also develops Coramitug, an investigational antibody, which is in Phase 3 clinical trial for the treatment of transthyretin amyloidosis; BMS-986446, an anti-tau antibody which is in Phase 2 clinical trial to treat Alzheimer’s disease; PRX019, an investigational antibody which is in Phase 1 clinical trial for the treatment of neurodegenerative diseases; and PRX123, a Dual Aß-Tau Vaccine, which is in preclinical trial for treating Alzheimer’s disease. In addition, it develops discovery- and late-preclinical-stage programs include TDP-43 CYTOPE for the treatment of amyotrophic lateral sclerosis; PRX012, a next-generation anti-Aß antibody which is in phase 1 clinical trial to treat Alzheimer’s disease; and PRX012-TfR, a preclinical program for the treatment of Alzheimer’s disease. It has a license, development, and commercialization agreement with F. Hoffmann-La Roche Ltd. and Hoffmann-La Roche Inc. to develop and commercialize antibodies that target a-synuclein, including prasinezumab; and master collaboration agreement with Bristol Myers Squibb to develop and commercialize antibodies targeting tau, TDP-43. Prothena Corporation plc was incorporated in 2012 and is based in Dublin, Ireland.

Commentary & Analysis


Financial Summary

Share Statistics PRTA Industry
Median
Percentile
(All Stocks)
Market Cap (Mil) $425.1 $252.6 36%
Shares Out (Mil) 54.1 52.3 50%
Institutional Ownership 79.5% 92.1% 49%
Float (Mil) 36.8 40.2 41%
Beta -0.32 0.95 2%
Avg Daily Volume (000s) 604 455 62%
Price Change
(52-week)
18.0% 52.9% 60%
Growth PRTA Industry
Median
Percentile
(All Stocks)
Sales (5yr) 60.9% 13.6% 97%
Net Income (5yr) (17.0%) (9.9%) 23%
EPS (5yr) (10.2%) 16.0% 21
Dividends (5yr) 0.0% 0.0% 0%
Cash Flow (5yr) (8.6%) (15.6%) 59%
Estimates Qtrly Current
Fiscal
Year
Next
Fiscal
Year
# of Estimates 2 2 1
Current EPS ($0.380) $0.050 ($1.310)
Month Ago EPS ($0.380) $0.050 ($1.310)
# Rev Up 0 1 1
# Rev Down 1 0 0
Three Months Ago EPS $1.325 $0.640 ($1.040)
Year/Year Chg (163.3%) (101.1%) (95.6%)
Financials PRTA Industry
Median
Percentile
(All Stocks)
Sales (TTM) (Mil) $58 $38 21%
Net Income (TTM) (Mil) ($151) ($43) 8%
EPS (TTM) ($2.810) ($1.600) 12%
Operating Cash Flow (TTM) (Mil) ($81) ($31) 7%
Net Cash Flow (TTM) (Mil) na $5 na
Long-Term Debt (Q1) (Mil) $5 $5 24%
Enterprise Value (Q1) (Mil) $138 $180 23%
Valuation PRTA Industry
Median
Percentile
(All Stocks)
P/B 1.38 2.56 36%
P/E na 19.0 na
Dividend Yield 0.0% 0.0% 0%
PEG (5yr hist) na 0.9 na
Ratios PRTA Industry
Median
Percentile
(All Stocks)
Gross Margin (66.8%) 63.8% 2%
Net Margin (260.9%) (67.3%) 4%
ROA (35.8%) (49.8%) 15%
ROE (40.3%) (55.5%) 17%
Liabilities to Assets 10.7% 30.3% 6%
F-Score 4 3 34%

Passing Stock Screens

As of 7/31/2026, from a list of 60 stock screening strategies, PRTA meetings the criteria of 1 screen:

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