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Prothena Corporation plc Stock Price

NasdaqGS:PRTA Community·US$516.3m Market Cap
  • 2 Narratives written by author
  • 0 Comments on narratives written by author
  • 10 Fair Values set on narratives written by author

PRTA Share Price Performance

US$9.59
-5.01 (-34.29%)
US$20.50
Fair Value
US$9.59
-5.01 (-34.29%)
53.2% undervalued intrinsic discount
US$20.50
Fair Value
Price US$9.59
AnalystConsensusTarget US$20.50
AnalystHighTarget US$36.00

PRTA Community Narratives

AnalystConsensusTarget·
Fair Value US$20.5 53.2% undervalued intrinsic discount

Analysts Maintain Prothena Price Target as Valuation Adjustments Reflect Recent Clinical Results

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AnalystHighTarget·
Fair Value US$36 73.4% undervalued intrinsic discount

Bullish View Expects Partnered Neurology Pipeline And CYTOPE Platform To Reshape Long-Term Prospects

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US$36
73.4% undervalued intrinsic discount
Profit Margin
51%
Future PE
29.88x
Price in 2029
US$44.77

Trending Discussion

Updated Narratives

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PRTA: Share Buyback And Index Inclusion Will Support Future Upside

Fair Value: US$20.5 53.2% undervalued intrinsic discount
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Bullish View Expects Partnered Neurology Pipeline And CYTOPE Platform To Reshape Long-Term Prospects

Fair Value: US$36 73.4% undervalued intrinsic discount
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Snowflake Analysis

High growth potential with excellent balance sheet.

0 Risks
2 Rewards

Prothena Corporation plc Key Details

US$9.7m

Revenue

US$134.9m

Cost of Revenue

-US$125.2m

Gross Profit

US$118.9m

Other Expenses

-US$244.1m

Earnings

Last Reported Earnings
Dec 31, 2025
Next Reporting Earnings
n/a
-4.53
-1,292.52%
-2,520.57%
0%
View Full Analysis

About PRTA

Founded
2012
Employees
67
CEO
Gene Kinney
WebsiteView website
www.prothena.com

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.