PRTA -Prothena Corporation plc
Float Short %
9.33
Margin Of Safety %
Put/Call OI Ratio
1.21
EPS Next Q Diff
1.44
EPS Last/This Y
-2.32
EPS This/Next Y
3.87
Price
8.22
Target Price
12
Analyst Recom
2
Performance Q
61.93
Relative Volume
0.45
Beta
-0.15
Ticker: PRTA
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| Date | Symbol | Last | P/C OI | P/C Vol | Total OI |
|---|---|---|---|---|---|
| 2025-08-15 | PRTA | 8.26 | 2.34 | 0.85 | 63657 |
| 2025-08-18 | PRTA | 8.53 | 0.90 | 2.75 | 34386 |
| 2025-08-19 | PRTA | 8.52 | 0.96 | 1.18 | 36202 |
| 2025-08-20 | PRTA | 8.52 | 0.96 | 4.93 | 36378 |
| 2025-08-21 | PRTA | 8.55 | 1.00 | 0.73 | 37296 |
| 2025-08-22 | PRTA | 8.77 | 1.00 | 1.89 | 37584 |
| 2025-08-25 | PRTA | 8.39 | 1.05 | 1.34 | 38581 |
| 2025-08-26 | PRTA | 8.34 | 1.06 | 1.57 | 40085 |
| 2025-08-27 | PRTA | 8.56 | 1.09 | 0.80 | 41074 |
| 2025-08-28 | PRTA | 8.25 | 1.10 | 1.25 | 41201 |
| 2025-08-29 | PRTA | 8.19 | 1.17 | 3.15 | 41683 |
| 2025-09-02 | PRTA | 8.28 | 1.19 | 15.35 | 42038 |
| 2025-09-03 | PRTA | 8.4 | 1.22 | 5.28 | 42733 |
| 2025-09-04 | PRTA | 8.19 | 1.25 | 3.64 | 43217 |
| 2025-09-05 | PRTA | 8.54 | 1.25 | 0.56 | 43108 |
| 2025-09-08 | PRTA | 8.49 | 1.25 | 0.50 | 43206 |
| 2025-09-09 | PRTA | 8.35 | 1.25 | 0.17 | 43207 |
| 2025-09-10 | PRTA | 8.3 | 1.25 | 6.30 | 43297 |
| 2025-09-11 | PRTA | 8.41 | 1.21 | 4.14 | 42595 |
| 2025-09-12 | PRTA | 8.21 | 1.21 | 0.00 | 42670 |
| Date | Symbol | Last | P/C OI | P/C Vol | Total OI |
Current Page1 of 1
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| Date | Ticker | Price | Current Quarter Growth Estimate | EBIT Estimation | Average EPS Estimate Current Year |
|---|---|---|---|---|---|
| 2025-08-15 | PRTA | 8.24 | 37.7 | - | -4.55 |
| 2025-08-18 | PRTA | 8.53 | 37.7 | - | -4.55 |
| 2025-08-19 | PRTA | 8.52 | 37.7 | - | -4.55 |
| 2025-08-20 | PRTA | 8.52 | 37.7 | - | -4.55 |
| 2025-08-21 | PRTA | 8.55 | 37.7 | - | -4.55 |
| 2025-08-22 | PRTA | 8.77 | 46.4 | - | -4.59 |
| 2025-08-25 | PRTA | 8.38 | 46.4 | - | -4.59 |
| 2025-08-26 | PRTA | 8.35 | 46.4 | - | -4.59 |
| 2025-08-27 | PRTA | 8.57 | 46.4 | - | -4.59 |
| 2025-08-28 | PRTA | 8.24 | 46.4 | - | -4.59 |
| 2025-08-29 | PRTA | 8.19 | 46.4 | - | -4.59 |
| 2025-09-02 | PRTA | 8.27 | 51.1 | - | -4.59 |
| 2025-09-03 | PRTA | 8.40 | 51.1 | - | -4.59 |
| 2025-09-04 | PRTA | 8.21 | 51.1 | - | -4.59 |
| 2025-09-05 | PRTA | 8.55 | 51.1 | - | -4.59 |
| 2025-09-08 | PRTA | 8.49 | 51.1 | - | -4.59 |
| 2025-09-09 | PRTA | 8.34 | 51.1 | - | -4.59 |
| 2025-09-10 | PRTA | 8.30 | 51.1 | - | -4.59 |
| 2025-09-11 | PRTA | 8.43 | 51.1 | - | -4.59 |
| 2025-09-12 | PRTA | 8.22 | 51.1 | - | -4.59 |
| Date | Ticker | Price | Current Quarter Growth Estimate | EBIT Estimation | Average EPS Estimate Current Year |
Current Page1 of 1
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| Date | Ticker | Insider Transactions | Institutional Transactions | Float Short |
|---|---|---|---|---|
| 2025-08-15 | PRTA | -33.32 | -29.12 | 10.50 |
| 2025-08-18 | PRTA | -33.32 | -24.65 | 10.07 |
| 2025-08-19 | PRTA | -36.94 | -24.65 | 10.07 |
| 2025-08-20 | PRTA | -36.94 | -24.65 | 10.07 |
| 2025-08-21 | PRTA | -36.94 | -24.65 | 10.07 |
| 2025-08-22 | PRTA | -36.94 | -24.65 | 10.07 |
| 2025-08-25 | PRTA | -36.94 | -21.11 | 10.07 |
| 2025-08-26 | PRTA | -36.94 | -21.11 | 10.07 |
| 2025-08-27 | PRTA | -36.94 | -21.11 | 9.63 |
| 2025-08-28 | PRTA | -36.94 | -21.11 | 9.63 |
| 2025-08-29 | PRTA | -36.94 | -21.11 | 9.63 |
| 2025-09-02 | PRTA | -36.94 | -20.89 | 9.63 |
| 2025-09-03 | PRTA | -36.94 | -20.89 | 9.63 |
| 2025-09-04 | PRTA | -36.94 | -20.89 | 9.63 |
| 2025-09-05 | PRTA | -36.94 | -20.89 | 9.63 |
| 2025-09-08 | PRTA | -36.94 | -20.74 | 9.63 |
| 2025-09-09 | PRTA | -36.94 | -20.74 | 9.63 |
| 2025-09-10 | PRTA | -36.94 | -20.74 | 9.63 |
| 2025-09-11 | PRTA | -36.94 | -20.74 | 9.33 |
| 2025-09-12 | PRTA | -36.94 | -20.74 | 9.33 |
| Date | Ticker | Insider Transactions | Institutional Transactions | Float Short |
Current Page1 of 1
Last Quarter Act. EPS
-1.86
Avg. EPS Est. Current Quarter
-0.54
Avg. EPS Est. Next Quarter
-0.42
Insider Transactions
-36.94
Institutional Transactions
-20.74
Beta
-0.15
Average Sales Estimate Current Quarter
6
Average Sales Estimate Next Quarter
6
Fair Value
Quality Score
16
Growth Score
36
Sentiment Score
23
Actual DrawDown %
89.7
Max Drawdown 5-Year %
-94.2
Target Price
12
P/E
Forward P/E
54.73
PEG
P/S
42.74
P/B
1.36
P/Free Cash Flow
EPS
-5.63
Average EPS Est. Cur. Y
-4.59
EPS Next Y. (Est.)
-0.72
Target Price Estimates Raised
Target Price Estimates Lowered
Profit Margin
-2929.3
Relative Volume
0.45
Return on Equity vs Sector %
-118.3
Return on Equity vs Industry %
-105.1
EPS 1 7Days Diff
EPS 1 30Days Diff
-0.05
EBIT Estimation
Prothena Corporation plcSector: 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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