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Prothena Corporation plc (PRTA NASDAQ) stock market data APIs

$8.9411 -0.28(-3.1%)
as of June 18, 2026
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Prothena Corporation plc Financial Data Overview

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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.

Prev. Close 8.9411
Open 8.6635
High 9.1319
Low 8.5879
52 wk Range 5.83-11.8
Market Cap 468 M
Shares Outstanding 52 353 K
Revenue 57 940 K
EPS 0.68
Beta -0.321

* We provide hundreds of fields of fundamental data, including EBITDA, P/E ratio, PEG ratio, trailing P/E, shareholders, insider transactions, technical metrics, dividends, splits, earnings, and more. Check out our Fundamental Data API.


ETFs with Prothena Corporation plc (top by weight)

Ticker
100-day Price Change
Weight
IBRN.US iShares Trust - iShares Neuroscience and Healthcare ETF
5.01 (16.17%)
0.42
2B78.F iShares Healthcare Innovation UCITS ETF USD (Acc)
0.32 (4.3%)
0.05
BTEC.SW iShares Nasdaq US Biotechnology UCITS ETF USD (Acc) USD
0.6 (7.2%)
0.04
IBB.US iShares Biotechnology ETF
8.27 (5%)
0.03
VTWV.US Vanguard Russell 2000 Value Index Fund ETF Shares
28.11 (17.22%)
0.03
VRTVX.US Vanguard Scottsdale Funds - Vanguard Russell 2000 Value ETF
54.06 (16.72%)
0.03
IWN.US iShares Russell 2000 Value ETF
31.39 (16.93%)
0.02

* We provide detailed information about ETF constituents through our Fundamentals API for ETFs. Read the documentation to learn more.


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Prothena Corporation plc Fundamental data includes:

  • Net Revenue: 57 940 K
  • EBITDA: -92 332 000
  • Earnings Per Share: -2
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  • Latest Release: 2026-05-07
  • EPS/Forecast: -0.3
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