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Float Short %

10.83

Margin Of Safety %

Put/Call OI Ratio

0.78

EPS Next Q Diff

0.35

EPS Last/This Y

-2.26

EPS This/Next Y

5.06

Price

9.12

Target Price

20.33

Analyst Recom

2

Performance Q

-10.23

Relative Volume

0.72

Beta

-0.12

Ticker: PRTA




19 items of 1

DateSymbolLatestP/C OIP/C VolTotal OI
2025-12-09PRTA10.311.130.4029393
2025-12-10PRTA9.881.131.4029511
2025-12-11PRTA10.341.150.5029735
2025-12-12PRTA10.351.150.0229729
2025-12-15PRTA9.991.150.0129783
2025-12-16PRTA9.761.120.0530147
2025-12-17PRTA9.431.120.0030170
2025-12-18PRTA9.371.110.5030021
2025-12-19PRTA9.241.100.0329881
2025-12-22PRTA9.670.690.0020658
2025-12-23PRTA9.50.690.0020658
2025-12-26PRTA9.540.690.0620584
2025-12-29PRTA9.480.740.0019931
2025-12-30PRTA9.310.743.5719958
2025-12-31PRTA9.530.750.5019997
2026-01-02PRTA9.210.758.3620001
2026-01-05PRTA9.10.771.7420208
2026-01-06PRTA8.940.780.1520561
2026-01-07PRTA9.140.780.6120580
DateSymbolLatestP/C OIP/C VolTotal OI
19 items Current Page1 of 1




19 items of 1

DateTickerPriceCurrent Quarter Growth EstimateEBIT EstimationAverage EPS Estimate Current Year
2025-12-09PRTA10.3257.4- -4.53
2025-12-10PRTA9.8757.4- -4.53
2025-12-11PRTA10.3457.4- -4.53
2025-12-12PRTA10.3557.4- -4.53
2025-12-15PRTA9.9757.4- -4.53
2025-12-16PRTA9.9757.4- -4.53
2025-12-17PRTA9.4457.4- -4.53
2025-12-18PRTA9.3957.4- -4.53
2025-12-19PRTA9.2457.4- -4.53
2025-12-22PRTA9.6957.4- -4.53
2025-12-23PRTA9.5357.4- -4.53
2025-12-26PRTA9.5557.4- -4.53
2025-12-29PRTA9.4857.4- -4.53
2025-12-30PRTA9.3257.4- -4.53
2025-12-31PRTA9.5557.4- -4.53
2026-01-02PRTA9.2157.4- -4.53
2026-01-05PRTA9.0957.4- -4.53
2026-01-06PRTA8.9757.4- -4.53
2026-01-07PRTA9.1257.4- -4.53
DateTickerPriceCurrent Quarter Growth EstimateEBIT EstimationAverage EPS Estimate Current Year
19 items Current Page1 of 1




19 items of 1

DateTickerInsider TransactionsInstitutional TransactionsFloat Short
2025-12-09PRTA0.002.0110.73
2025-12-10PRTA0.002.0110.69
2025-12-11PRTA0.002.0110.69
2025-12-12PRTA0.002.0110.69
2025-12-15PRTA0.001.9910.69
2025-12-16PRTA0.001.9910.69
2025-12-17PRTA0.001.9910.69
2025-12-18PRTA0.001.9910.69
2025-12-19PRTA0.001.9910.69
2025-12-22PRTA0.001.9910.69
2025-12-23PRTA0.001.9910.69
2025-12-26PRTA0.001.9910.83
2025-12-29PRTA0.001.9910.83
2025-12-30PRTA0.001.9910.83
2025-12-31PRTA0.001.9910.83
2026-01-02PRTA0.001.9910.83
2026-01-05PRTA0.001.6110.83
2026-01-06PRTA0.001.6110.83
2026-01-07PRTA0.001.6110.83
DateTickerInsider TransactionsInstitutional TransactionsFloat Short
19 items Current Page1 of 1

Last Quarter Act. EPS

-0.67

Avg. EPS Est. Current Quarter

-0.46

Avg. EPS Est. Next Quarter

-0.32

Insider Transactions

Institutional Transactions

1.61

Beta

-0.12

Average Sales Estimate Current Quarter

Average Sales Estimate Next Quarter

Fair Value

Quality Score

16

Growth Score

37

Sentiment Score

15

Actual DrawDown %

88.6

Max Drawdown 5-Year %

-94.2

Target Price

20.33

P/E

Forward P/E

15.33

PEG

0.62

P/S

41.68

P/B

1.67

P/Free Cash Flow

EPS

-5.21

Average EPS Est. Cur. Y​

-4.53

EPS Next Y. (Est.)

0.53

Target Price Estimates Raised

Target Price Estimates Lowered

Profit Margin

-2379.59

Relative Volume

0.72

Return on Equity vs Sector %

-122.2

Return on Equity vs Industry %

-107

EPS 1 7Days Diff

EPS 1 30Days Diff

0.06

EBIT Estimation

Prothena Corporation plc
Sector: Healthcare
Industry: Biotechnology
Employees: 163
Prothena Corporation plc, a late-stage clinical biotechnology company, focuses on discovery and development of novel therapies to treat diseases caused by protein dysregulation in the United States. Its product pipeline include Prasinezumab, an investigational humanized monoclonal antibody which is in phase 2b clinical trial, as well as phase 1 and 2 clinical trials for the treatment of parkinson's disease and other synucleinopathies. The company also develops Coramitug, an investigational antibody, which is in phase 2 clinical trial for potential treatment of transthyretin amyloidosis; BMS-986446, an investigational antibody, which is in phase 2 clinical trial to treat Alzheimer's disease; PRX012, an investigational antibody, which is in phase 1 clinical trial to treat Alzheimer's disease; PRX123, a Dual Aß-Tau Vaccine, which is in preclinical trial for treating Alzheimer's disease; and PRX019, an investigational antibody, which is in phase 1 clinical trial for the potential treatment of neurodegenerative diseases. 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.
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