PRTA -Prothena Corporation plc
PRTA
$8.47Name : Prothena Corporation plc
Sector : Healthcare
Industry: Biotechnology
Mark. Cap: $443,431,936.00
EPSttm : -2.81
Prothena Corporation plc
$8.47
PRTA — Price & Float Short
—— Fair value
★ EPS beat
★ EPS miss
—— Target Price
Float Short %
Float Short %
15.35
Margin Of Safety %
Put/Call OI Ratio
0.47
EPS Next Q Diff
-0.82
EPS Last/This Y
4.58
EPS This/Next Y
-1.36
Price
8.47
Target Price
21.4
Analyst Recom
2.17
Performance Q
-13.31
Upside
-531.3%
Beta
-0.28
Ticker: PRTA
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| Date | Symbol | Latest | P/C OI | P/C Vol | Total OI |
|---|---|---|---|---|---|
| 2026-05-11 | PRTA | 9.67 | 0.32 | 12.28 | 11670 |
| 2026-05-12 | PRTA | 9.43 | 0.40 | 10.83 | 12427 |
| 2026-05-13 | PRTA | 9.59 | 0.41 | 11.00 | 12498 |
| 2026-05-14 | PRTA | 9.86 | 0.41 | 999.99 | 12500 |
| 2026-05-15 | PRTA | 9.74 | 0.41 | 0.00 | 12501 |
| 2026-05-18 | PRTA | 9.58 | 0.40 | 0.17 | 10095 |
| 2026-05-19 | PRTA | 9.06 | 0.38 | 11.69 | 11046 |
| 2026-05-20 | PRTA | 9.36 | 0.41 | 0.03 | 11350 |
| 2026-05-21 | PRTA | 9.42 | 0.41 | 0.08 | 11403 |
| 2026-05-22 | PRTA | 9.82 | 0.41 | 0.00 | 11409 |
| 2026-05-26 | PRTA | 10.04 | 0.40 | 0.00 | 11567 |
| 2026-05-27 | PRTA | 10.02 | 0.40 | 0.00 | 11589 |
| 2026-05-28 | PRTA | 9.96 | 0.40 | 0.33 | 11591 |
| 2026-05-29 | PRTA | 10.17 | 0.40 | 0.00 | 11594 |
| 2026-06-02 | PRTA | 9.18 | 0.40 | 2.50 | 11599 |
| 2026-06-03 | PRTA | 8.9 | 0.39 | 2.40 | 11533 |
| 2026-06-04 | PRTA | 9.24 | 0.41 | 1.19 | 11706 |
| 2026-06-05 | PRTA | 8.77 | 0.41 | 999.99 | 11723 |
| 2026-06-08 | PRTA | 8.56 | 0.46 | 3.15 | 12118 |
| 2026-06-09 | PRTA | 8.47 | 0.47 | 0.00 | 12250 |
| Date | Symbol | Latest | P/C OI | P/C Vol | Total OI |
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| Date | Ticker | Price | Current Quarter Growth Estimate | EBIT Estimation | Average EPS Estimate Current Year |
|---|---|---|---|---|---|
| 2026-05-11 | PRTA | 9.67 | 72.8 | - | 0.64 |
| 2026-05-12 | PRTA | 9.42 | 72.8 | - | 0.64 |
| 2026-05-13 | PRTA | 9.58 | 72.8 | - | 0.64 |
| 2026-05-14 | PRTA | 9.86 | 72.8 | - | 0.64 |
| 2026-05-15 | PRTA | 9.74 | 72.8 | - | 0.05 |
| 2026-05-18 | PRTA | 9.57 | 122.0 | - | 0.05 |
| 2026-05-19 | PRTA | 9.06 | 122.0 | - | 0.05 |
| 2026-05-20 | PRTA | 9.35 | 122.0 | - | 0.05 |
| 2026-05-21 | PRTA | 9.40 | 122.0 | - | 0.05 |
| 2026-05-22 | PRTA | 9.82 | 122.0 | - | 0.05 |
| 2026-05-26 | PRTA | 10.04 | 122.0 | - | 0.05 |
| 2026-05-27 | PRTA | 10.03 | 122.0 | - | 0.05 |
| 2026-05-28 | PRTA | 9.96 | 122.0 | - | 0.05 |
| 2026-05-29 | PRTA | 10.17 | 122.0 | - | 0.05 |
| 2026-06-01 | PRTA | 9.57 | 122.0 | - | 0.05 |
| 2026-06-02 | PRTA | 9.18 | 122.0 | - | 0.05 |
| 2026-06-03 | PRTA | 8.91 | 122.0 | - | 0.05 |
| 2026-06-04 | PRTA | 9.26 | 122.0 | - | 0.05 |
| 2026-06-05 | PRTA | 8.77 | 122.0 | - | 0.05 |
| 2026-06-08 | PRTA | 8.57 | 122.0 | - | 0.05 |
| 2026-06-09 | PRTA | 8.47 | 122.0 | - | 0.05 |
| Date | Ticker | Price | Current Quarter Growth Estimate | EBIT Estimation | Average EPS Estimate Current Year |
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| Date | Ticker | Insider Transactions | Institutional Transactions | Float Short |
|---|---|---|---|---|
| 2026-05-11 | PRTA | 0.00 | 5.30 | 16.80 |
| 2026-05-12 | PRTA | 0.00 | 5.30 | 16.31 |
| 2026-05-13 | PRTA | 0.00 | 5.30 | 16.31 |
| 2026-05-14 | PRTA | 0.00 | 5.30 | 16.31 |
| 2026-05-15 | PRTA | 0.00 | 5.30 | 16.31 |
| 2026-05-18 | PRTA | 0.00 | 3.92 | 16.35 |
| 2026-05-19 | PRTA | 0.00 | 3.92 | 16.35 |
| 2026-05-20 | PRTA | 0.00 | 3.92 | 16.35 |
| 2026-05-21 | PRTA | 0.00 | 3.92 | 16.35 |
| 2026-05-22 | PRTA | 0.00 | 3.92 | 16.35 |
| 2026-05-26 | PRTA | 0.98 | -3.62 | 16.35 |
| 2026-05-27 | PRTA | 0.98 | -3.62 | 16.35 |
| 2026-05-28 | PRTA | 0.98 | -3.62 | 16.88 |
| 2026-05-29 | PRTA | 0.98 | -3.62 | 16.88 |
| 2026-06-02 | PRTA | 1.69 | -4.11 | 15.32 |
| 2026-06-03 | PRTA | 2.56 | -4.11 | 15.32 |
| 2026-06-04 | PRTA | 2.56 | -4.11 | 15.32 |
| 2026-06-05 | PRTA | 3.44 | -4.11 | 15.32 |
| 2026-06-08 | PRTA | 3.44 | -4.13 | 15.34 |
| 2026-06-09 | PRTA | 3.41 | -4.13 | 15.35 |
| Date | Ticker | Insider Transactions | Institutional Transactions | Float Short |
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Last Quarter Act. EPS
0.52
Avg. EPS Est. Current Quarter
0.38
Avg. EPS Est. Next Quarter
-0.3
Insider Transactions
3.41
Institutional Transactions
-4.13
Beta
-0.28
Average Sales Estimate Current Quarter
Average Sales Estimate Next Quarter
9
Fair Value
Quality Score
20
Growth Score
27
Sentiment Score
10
Actual DrawDown %
89.4
Max Drawdown 5-Year %
-94.2
Target Price
21.4
P/E
Forward P/E
PEG
P/S
7.65
P/B
1.44
P/Free Cash Flow
EPS
-2.81
Average EPS Est. Cur. Y
0.05
EPS Next Y. (Est.)
-1.31
Target Price Estimates Raised
Target Price Estimates Lowered
Profit Margin
-260.92
Relative Volume
0.95
Return on Equity vs Sector %
-75.8
Return on Equity vs Industry %
-59.7
EPS 1 7Days Diff
-0.6
EPS 1 30Days Diff
-0.59
EBIT Estimation
◆
PRTA
Healthcare
$8.47
📉
N/A
Swing / Pullback
Buy the dip on strong trends
WEAK
Trend
20/20
Pullback
21/25
Volume
7/15
Valuation
10/20
TP/AR
1/10
Options
8/10
RSI
34.4
Range 1M
6.2%
Sup Dist
0.5%
🚀
N/A
Momentum Growth
Ride accelerating trends
WEAK
Momentum
19/25
Growth
20/30
Estimates
0/20
Inst/Vol
2/15
Options
5/10
EPS Yr
101%
EPS NY
-2307.1%
52W%
52%
💎
N/A
Long-Term Value
Quality companies, undervalued
WEAK
🟢 BUY
+152.7% upside
Quality
7/30
Valuation
16/30
Growth
14/25
Stability
8/10
LT Trend
3/5
Upside
+152.7%
Quality
20
Click a card to see score breakdown
Full Analysis →
Sector: Healthcare
Industry: Biotechnology
Employees: 67
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.
PRTA
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